Having similar/same issues with Kernel 5.3. I was observing 5.3 since this patch was committed - because I guessed it'll be fixed there at some point eventually. I just checked 5.3.0-51-generic and it does not pass my mini-stress test (compiling something on a nfs share):
May 2 20:26:55 mwpc55 kernel: [ 71.492014] BUG: unable to handle page fault for address: 000000005c05ee77 May 2 20:26:55 mwpc55 kernel: [ 71.492017] #PF: supervisor read access in kernel mode May 2 20:26:55 mwpc55 kernel: [ 71.492018] #PF: error_code(0x0000) - not-present page May 2 20:26:55 mwpc55 kernel: [ 71.492019] PGD f3b7df067 P4D f3b7df067 PUD 0 May 2 20:26:55 mwpc55 kernel: [ 71.492022] Oops: 0000 [#1] SMP NOPTI May 2 20:26:55 mwpc55 kernel: [ 71.492026] CPU: 5 PID: 2995 Comm: kworker/u64:17 Tainted: P OE 5.3.0-51-generic #44~18.04.2-Ubuntu May 2 20:26:55 mwpc55 kernel: [ 71.492027] Hardware name: System manufacturer System Product Name/ROG CROSSHAIR VII HERO (WI-FI), BIOS 3004 12/16/2019 May 2 20:26:55 mwpc55 kernel: [ 71.492040] Workqueue: rpciod rpc_async_schedule [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492045] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:26:55 mwpc55 kernel: [ 71.492047] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:26:55 mwpc55 kernel: [ 71.492048] RSP: 0018:ffff9aa8c2ce7cd8 EFLAGS: 00010206 May 2 20:26:55 mwpc55 kernel: [ 71.492050] RAX: 000000005c05ee77 RBX: 000000005c05ee77 RCX: 00000000000001ba May 2 20:26:55 mwpc55 kernel: [ 71.492051] RDX: 00000000000001b9 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:26:55 mwpc55 kernel: [ 71.492052] RBP: ffff9aa8c2ce7d08 R08: ffff8b709e771ed0 R09: ffff8b7098006d80 May 2 20:26:55 mwpc55 kernel: [ 71.492053] R10: ffff9aa8c2ce7dd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:26:55 mwpc55 kernel: [ 71.492054] R13: ffff8b7096a0ad80 R14: 000000005c05ee77 R15: ffff8b7096a0ad80 May 2 20:26:55 mwpc55 kernel: [ 71.492056] FS: 0000000000000000(0000) GS:ffff8b709e740000(0000) knlGS:0000000000000000 May 2 20:26:55 mwpc55 kernel: [ 71.492057] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:26:55 mwpc55 kernel: [ 71.492058] CR2: 000000005c05ee77 CR3: 0000000f01398000 CR4: 0000000000340ee0 May 2 20:26:55 mwpc55 kernel: [ 71.492059] Call Trace: May 2 20:26:55 mwpc55 kernel: [ 71.492063] ? mempool_alloc_slab+0x15/0x20 May 2 20:26:55 mwpc55 kernel: [ 71.492066] ? wait_woken+0x80/0x80 May 2 20:26:55 mwpc55 kernel: [ 71.492067] mempool_alloc_slab+0x15/0x20 May 2 20:26:55 mwpc55 kernel: [ 71.492068] mempool_alloc+0x71/0x190 May 2 20:26:55 mwpc55 kernel: [ 71.492078] rpc_malloc+0x9d/0xd0 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492089] call_allocate+0xbb/0x1f0 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492098] ? call_refreshresult+0x140/0x140 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492106] ? rpc_exit+0x30/0x30 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492114] __rpc_execute+0x8a/0x420 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492118] ? __switch_to_asm+0x34/0x70 May 2 20:26:55 mwpc55 kernel: [ 71.492127] rpc_async_schedule+0x30/0x50 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492130] process_one_work+0x1fd/0x3f0 May 2 20:26:55 mwpc55 kernel: [ 71.492132] worker_thread+0x34/0x410 May 2 20:26:55 mwpc55 kernel: [ 71.492134] kthread+0x121/0x140 May 2 20:26:55 mwpc55 kernel: [ 71.492135] ? process_one_work+0x3f0/0x3f0 May 2 20:26:55 mwpc55 kernel: [ 71.492136] ? kthread_park+0xb0/0xb0 May 2 20:26:55 mwpc55 kernel: [ 71.492138] ret_from_fork+0x22/0x40 May 2 20:26:55 mwpc55 kernel: [ 71.492140] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache edac_mce_amd snd_hda_codec_hdmi joydev kvm irqbypass hid_roccat_koneplus hid_roccat hid_roccat_common nvidia_uvm(OE) nvidia_drm(POE) nvidia_modeset(POE) snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_ca0132 crct10dif_pclmul crc32_pclmul snd_usb_audio snd_hda_intel ghash_clmulni_intel snd_usbmidi_lib snd_intel_nhlt mc snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi nvidia(POE) snd_pcm snd_seq_midi_event snd_rawmidi aesni_intel drm_kms_helper snd_seq aes_x86_64 crypto_simd eeepc_wmi snd_seq_device cryptd asus_wmi glue_helper input_leds sparse_keymap snd_timer mxm_wmi video drm snd ipmi_devintf serio_raw wmi_bmof ipmi_msghandler fb_sys_fops syscopyarea soundcore sysfillrect sysimgblt k10temp ccp mac_hid sch_fq_codel asus_wmi_sensors(OE) parport_pc ppdev lp sunrpc parport ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c dm_mirror dm_region_hash dm_log May 2 20:26:55 mwpc55 kernel: [ 71.492172] hid_plantronics hid_steam hid_generic usbhid hid igb i2c_piix4 nvme dca ahci i2c_algo_bit nvme_core libahci gpio_amdpt wmi gpio_generic May 2 20:26:55 mwpc55 kernel: [ 71.492181] CR2: 000000005c05ee77 May 2 20:26:55 mwpc55 kernel: [ 71.492183] ---[ end trace 1ac730932028eb54 ]--- May 2 20:26:55 mwpc55 kernel: [ 71.492185] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:26:55 mwpc55 kernel: [ 71.492186] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:26:55 mwpc55 kernel: [ 71.492187] RSP: 0018:ffff9aa8c2ce7cd8 EFLAGS: 00010206 May 2 20:26:55 mwpc55 kernel: [ 71.492189] RAX: 000000005c05ee77 RBX: 000000005c05ee77 RCX: 00000000000001ba May 2 20:26:55 mwpc55 kernel: [ 71.492190] RDX: 00000000000001b9 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:26:55 mwpc55 kernel: [ 71.492191] RBP: ffff9aa8c2ce7d08 R08: ffff8b709e771ed0 R09: ffff8b7098006d80 May 2 20:26:55 mwpc55 kernel: [ 71.492192] R10: ffff9aa8c2ce7dd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:26:55 mwpc55 kernel: [ 71.492193] R13: ffff8b7096a0ad80 R14: 000000005c05ee77 R15: ffff8b7096a0ad80 May 2 20:26:55 mwpc55 kernel: [ 71.492195] FS: 0000000000000000(0000) GS:ffff8b709e740000(0000) knlGS:0000000000000000 May 2 20:26:55 mwpc55 kernel: [ 71.492196] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:26:55 mwpc55 kernel: [ 71.492196] CR2: 000000005c05ee77 CR3: 0000000f01398000 CR4: 0000000000340ee0 May 2 20:26:55 mwpc55 kernel: [ 71.492272] BUG: unable to handle page fault for address: 000000005c05ee77 May 2 20:26:55 mwpc55 kernel: [ 71.492274] #PF: supervisor read access in kernel mode May 2 20:26:55 mwpc55 kernel: [ 71.492275] #PF: error_code(0x0000) - not-present page May 2 20:26:55 mwpc55 kernel: [ 71.492276] PGD f3b7df067 P4D f3b7df067 PUD 0 May 2 20:26:55 mwpc55 kernel: [ 71.492279] Oops: 0000 [#2] SMP NOPTI May 2 20:26:55 mwpc55 kernel: [ 71.492281] CPU: 5 PID: 3004 Comm: kworker/u64:25 Tainted: P D OE 5.3.0-51-generic #44~18.04.2-Ubuntu May 2 20:26:55 mwpc55 kernel: [ 71.492283] Hardware name: System manufacturer System Product Name/ROG CROSSHAIR VII HERO (WI-FI), BIOS 3004 12/16/2019 May 2 20:26:55 mwpc55 kernel: [ 71.492294] Workqueue: rpciod rpc_async_schedule [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492297] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:26:55 mwpc55 kernel: [ 71.492300] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:26:55 mwpc55 kernel: [ 71.492301] RSP: 0018:ffff9aa8c2d27cd8 EFLAGS: 00010206 May 2 20:26:55 mwpc55 kernel: [ 71.492302] RAX: 000000005c05ee77 RBX: 000000005c05ee77 RCX: 00000000000001ba May 2 20:26:55 mwpc55 kernel: [ 71.492304] RDX: 00000000000001b9 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:26:55 mwpc55 kernel: [ 71.492305] RBP: ffff9aa8c2d27d08 R08: ffff8b709e771ed0 R09: ffff8b7098006d80 May 2 20:26:55 mwpc55 kernel: [ 71.492306] R10: ffff9aa8c2d27dd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:26:55 mwpc55 kernel: [ 71.492307] R13: ffff8b7096a0ad80 R14: 000000005c05ee77 R15: ffff8b7096a0ad80 May 2 20:26:55 mwpc55 kernel: [ 71.492309] FS: 0000000000000000(0000) GS:ffff8b709e740000(0000) knlGS:0000000000000000 May 2 20:26:55 mwpc55 kernel: [ 71.492311] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:26:55 mwpc55 kernel: [ 71.492312] CR2: 000000005c05ee77 CR3: 0000000f01398000 CR4: 0000000000340ee0 May 2 20:26:55 mwpc55 kernel: [ 71.492313] Call Trace: May 2 20:26:55 mwpc55 kernel: [ 71.492316] ? mempool_alloc_slab+0x15/0x20 May 2 20:26:55 mwpc55 kernel: [ 71.492318] ? wait_woken+0x80/0x80 May 2 20:26:55 mwpc55 kernel: [ 71.492320] mempool_alloc_slab+0x15/0x20 May 2 20:26:55 mwpc55 kernel: [ 71.492322] mempool_alloc+0x71/0x190 May 2 20:26:55 mwpc55 kernel: [ 71.492333] rpc_malloc+0x9d/0xd0 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492346] call_allocate+0xbb/0x1f0 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492356] ? call_refreshresult+0x140/0x140 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492365] ? rpc_exit+0x30/0x30 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492374] __rpc_execute+0x8a/0x420 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492377] ? __switch_to_asm+0x34/0x70 May 2 20:26:55 mwpc55 kernel: [ 71.492389] rpc_async_schedule+0x30/0x50 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492391] process_one_work+0x1fd/0x3f0 May 2 20:26:55 mwpc55 kernel: [ 71.492394] worker_thread+0x34/0x410 May 2 20:26:55 mwpc55 kernel: [ 71.492396] kthread+0x121/0x140 May 2 20:26:55 mwpc55 kernel: [ 71.492399] ? process_one_work+0x3f0/0x3f0 May 2 20:26:55 mwpc55 kernel: [ 71.492400] ? kthread_park+0xb0/0xb0 May 2 20:26:55 mwpc55 kernel: [ 71.492403] ret_from_fork+0x22/0x40 May 2 20:26:55 mwpc55 kernel: [ 71.492404] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache edac_mce_amd snd_hda_codec_hdmi joydev kvm irqbypass hid_roccat_koneplus hid_roccat hid_roccat_common nvidia_uvm(OE) nvidia_drm(POE) nvidia_modeset(POE) snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_ca0132 crct10dif_pclmul crc32_pclmul snd_usb_audio snd_hda_intel ghash_clmulni_intel snd_usbmidi_lib snd_intel_nhlt mc snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi nvidia(POE) snd_pcm snd_seq_midi_event snd_rawmidi aesni_intel drm_kms_helper snd_seq aes_x86_64 crypto_simd eeepc_wmi snd_seq_device cryptd asus_wmi glue_helper input_leds sparse_keymap snd_timer mxm_wmi video drm snd ipmi_devintf serio_raw wmi_bmof ipmi_msghandler fb_sys_fops syscopyarea soundcore sysfillrect sysimgblt k10temp ccp mac_hid sch_fq_codel asus_wmi_sensors(OE) parport_pc ppdev lp sunrpc parport ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c dm_mirror dm_region_hash dm_log May 2 20:26:55 mwpc55 kernel: [ 71.492429] hid_plantronics hid_steam hid_generic usbhid hid igb i2c_piix4 nvme dca ahci i2c_algo_bit nvme_core libahci gpio_amdpt wmi gpio_generic May 2 20:26:55 mwpc55 kernel: [ 71.492436] CR2: 000000005c05ee77 May 2 20:26:55 mwpc55 kernel: [ 71.492437] ---[ end trace 1ac730932028eb55 ]--- May 2 20:26:55 mwpc55 kernel: [ 71.492439] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:26:55 mwpc55 kernel: [ 71.492441] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:26:55 mwpc55 kernel: [ 71.492442] RSP: 0018:ffff9aa8c2ce7cd8 EFLAGS: 00010206 May 2 20:26:55 mwpc55 kernel: [ 71.492444] RAX: 000000005c05ee77 RBX: 000000005c05ee77 RCX: 00000000000001ba May 2 20:26:55 mwpc55 kernel: [ 71.492445] RDX: 00000000000001b9 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:26:55 mwpc55 kernel: [ 71.492447] RBP: ffff9aa8c2ce7d08 R08: ffff8b709e771ed0 R09: ffff8b7098006d80 May 2 20:26:55 mwpc55 kernel: [ 71.492448] R10: ffff9aa8c2ce7dd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:26:55 mwpc55 kernel: [ 71.492449] R13: ffff8b7096a0ad80 R14: 000000005c05ee77 R15: ffff8b7096a0ad80 May 2 20:26:55 mwpc55 kernel: [ 71.492451] FS: 0000000000000000(0000) GS:ffff8b709e740000(0000) knlGS:0000000000000000 May 2 20:26:55 mwpc55 kernel: [ 71.492453] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:26:55 mwpc55 kernel: [ 71.492454] CR2: 000000005c05ee77 CR3: 0000000f01398000 CR4: 0000000000340ee0 May 2 20:26:55 mwpc55 kernel: [ 71.492487] BUG: unable to handle page fault for address: 000000005c05ee77 May 2 20:26:55 mwpc55 kernel: [ 71.492488] #PF: supervisor read access in kernel mode May 2 20:26:55 mwpc55 kernel: [ 71.492489] #PF: error_code(0x0000) - not-present page May 2 20:26:55 mwpc55 kernel: [ 71.492490] PGD f3b7df067 P4D f3b7df067 PUD 0 May 2 20:26:55 mwpc55 kernel: [ 71.492493] Oops: 0000 [#3] SMP NOPTI May 2 20:26:55 mwpc55 kernel: [ 71.492495] CPU: 5 PID: 2993 Comm: kworker/u64:15 Tainted: P D OE 5.3.0-51-generic #44~18.04.2-Ubuntu May 2 20:26:55 mwpc55 kernel: [ 71.492497] Hardware name: System manufacturer System Product Name/ROG CROSSHAIR VII HERO (WI-FI), BIOS 3004 12/16/2019 May 2 20:26:55 mwpc55 kernel: [ 71.492508] Workqueue: rpciod rpc_async_schedule [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492510] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:26:55 mwpc55 kernel: [ 71.492511] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:26:55 mwpc55 kernel: [ 71.492512] RSP: 0018:ffff9aa8c2cdfcd8 EFLAGS: 00010206 May 2 20:26:55 mwpc55 kernel: [ 71.492514] RAX: 000000005c05ee77 RBX: 000000005c05ee77 RCX: 00000000000001ba May 2 20:26:55 mwpc55 kernel: [ 71.492515] RDX: 00000000000001b9 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:26:55 mwpc55 kernel: [ 71.492516] RBP: ffff9aa8c2cdfd08 R08: ffff8b709e771ed0 R09: ffff8b7098006d80 May 2 20:26:55 mwpc55 kernel: [ 71.492517] R10: ffff9aa8c2cdfdd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:26:55 mwpc55 kernel: [ 71.492518] R13: ffff8b7096a0ad80 R14: 000000005c05ee77 R15: ffff8b7096a0ad80 May 2 20:26:55 mwpc55 kernel: [ 71.492520] FS: 0000000000000000(0000) GS:ffff8b709e740000(0000) knlGS:0000000000000000 May 2 20:26:55 mwpc55 kernel: [ 71.492521] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:26:55 mwpc55 kernel: [ 71.492523] CR2: 000000005c05ee77 CR3: 0000000f01398000 CR4: 0000000000340ee0 May 2 20:26:55 mwpc55 kernel: [ 71.492524] Call Trace: May 2 20:26:55 mwpc55 kernel: [ 71.492526] ? mempool_alloc_slab+0x15/0x20 May 2 20:26:55 mwpc55 kernel: [ 71.492529] ? wait_woken+0x80/0x80 May 2 20:26:55 mwpc55 kernel: [ 71.492530] mempool_alloc_slab+0x15/0x20 May 2 20:26:55 mwpc55 kernel: [ 71.492532] mempool_alloc+0x71/0x190 May 2 20:26:55 mwpc55 kernel: [ 71.492545] rpc_malloc+0x9d/0xd0 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492557] call_allocate+0xbb/0x1f0 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492570] ? call_refreshresult+0x140/0x140 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492580] ? rpc_exit+0x30/0x30 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492593] __rpc_execute+0x8a/0x420 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492595] ? finish_task_switch+0x1aa/0x270 May 2 20:26:55 mwpc55 kernel: [ 71.492606] rpc_async_schedule+0x30/0x50 [sunrpc] May 2 20:26:55 mwpc55 kernel: [ 71.492609] process_one_work+0x1fd/0x3f0 May 2 20:26:55 mwpc55 kernel: [ 71.492612] worker_thread+0x34/0x410 May 2 20:26:55 mwpc55 kernel: [ 71.492614] kthread+0x121/0x140 May 2 20:26:55 mwpc55 kernel: [ 71.492616] ? process_one_work+0x3f0/0x3f0 May 2 20:26:55 mwpc55 kernel: [ 71.492618] ? kthread_park+0xb0/0xb0 May 2 20:26:55 mwpc55 kernel: [ 71.492620] ret_from_fork+0x22/0x40 May 2 20:26:55 mwpc55 kernel: [ 71.492621] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache edac_mce_amd snd_hda_codec_hdmi joydev kvm irqbypass hid_roccat_koneplus hid_roccat hid_roccat_common nvidia_uvm(OE) nvidia_drm(POE) nvidia_modeset(POE) snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_ca0132 crct10dif_pclmul crc32_pclmul snd_usb_audio snd_hda_intel ghash_clmulni_intel snd_usbmidi_lib snd_intel_nhlt mc snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi nvidia(POE) snd_pcm snd_seq_midi_event snd_rawmidi aesni_intel drm_kms_helper snd_seq aes_x86_64 crypto_simd eeepc_wmi snd_seq_device cryptd asus_wmi glue_helper input_leds sparse_keymap snd_timer mxm_wmi video drm snd ipmi_devintf serio_raw wmi_bmof ipmi_msghandler fb_sys_fops syscopyarea soundcore sysfillrect sysimgblt k10temp ccp mac_hid sch_fq_codel asus_wmi_sensors(OE) parport_pc ppdev lp sunrpc parport ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c dm_mirror dm_region_hash dm_log May 2 20:26:55 mwpc55 kernel: [ 71.492644] hid_plantronics hid_steam hid_generic usbhid hid igb i2c_piix4 nvme dca ahci i2c_algo_bit nvme_core libahci gpio_amdpt wmi gpio_generic May 2 20:26:55 mwpc55 kernel: [ 71.492651] CR2: 000000005c05ee77 May 2 20:26:55 mwpc55 kernel: [ 71.492653] ---[ end trace 1ac730932028eb56 ]--- May 2 20:26:55 mwpc55 kernel: [ 71.492655] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:26:55 mwpc55 kernel: [ 71.492657] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:26:55 mwpc55 kernel: [ 71.492658] RSP: 0018:ffff9aa8c2ce7cd8 EFLAGS: 00010206 May 2 20:26:55 mwpc55 kernel: [ 71.492660] RAX: 000000005c05ee77 RBX: 000000005c05ee77 RCX: 00000000000001ba May 2 20:26:55 mwpc55 kernel: [ 71.492661] RDX: 00000000000001b9 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:26:55 mwpc55 kernel: [ 71.492662] RBP: ffff9aa8c2ce7d08 R08: ffff8b709e771ed0 R09: ffff8b7098006d80 May 2 20:26:55 mwpc55 kernel: [ 71.492663] R10: ffff9aa8c2ce7dd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:26:55 mwpc55 kernel: [ 71.492664] R13: ffff8b7096a0ad80 R14: 000000005c05ee77 R15: ffff8b7096a0ad80 May 2 20:26:55 mwpc55 kernel: [ 71.492665] FS: 0000000000000000(0000) GS:ffff8b709e740000(0000) knlGS:0000000000000000 May 2 20:26:55 mwpc55 kernel: [ 71.492667] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:26:55 mwpc55 kernel: [ 71.492668] CR2: 000000005c05ee77 CR3: 0000000f01398000 CR4: 0000000000340ee0 May 2 20:26:56 mwpc55 kernel: [ 71.932092] BUG: unable to handle page fault for address: 000000002a1f5a71 May 2 20:26:56 mwpc55 kernel: [ 71.932096] #PF: supervisor read access in kernel mode May 2 20:26:56 mwpc55 kernel: [ 71.932097] #PF: error_code(0x0000) - not-present page May 2 20:26:56 mwpc55 kernel: [ 71.932098] PGD 0 P4D 0 May 2 20:26:56 mwpc55 kernel: [ 71.932101] Oops: 0000 [#4] SMP NOPTI May 2 20:26:56 mwpc55 kernel: [ 71.932104] CPU: 4 PID: 3000 Comm: kworker/u64:21 Tainted: P D OE 5.3.0-51-generic #44~18.04.2-Ubuntu May 2 20:26:56 mwpc55 kernel: [ 71.932105] Hardware name: System manufacturer System Product Name/ROG CROSSHAIR VII HERO (WI-FI), BIOS 3004 12/16/2019 May 2 20:26:56 mwpc55 kernel: [ 71.932120] Workqueue: rpciod rpc_async_schedule [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.932125] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:26:56 mwpc55 kernel: [ 71.932127] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:26:56 mwpc55 kernel: [ 71.932128] RSP: 0018:ffff9aa8c2d4fcd8 EFLAGS: 00010206 May 2 20:26:56 mwpc55 kernel: [ 71.932130] RAX: 000000002a1f5a71 RBX: 000000002a1f5a71 RCX: 00000000000003c1 May 2 20:26:56 mwpc55 kernel: [ 71.932132] RDX: 00000000000003c0 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:26:56 mwpc55 kernel: [ 71.932133] RBP: ffff9aa8c2d4fd08 R08: ffff8b709e731ed0 R09: ffff8b7098006d80 May 2 20:26:56 mwpc55 kernel: [ 71.932134] R10: ffff9aa8c2d4fdd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:26:56 mwpc55 kernel: [ 71.932135] R13: ffff8b7096a0ad80 R14: 000000002a1f5a71 R15: ffff8b7096a0ad80 May 2 20:26:56 mwpc55 kernel: [ 71.932136] FS: 0000000000000000(0000) GS:ffff8b709e700000(0000) knlGS:0000000000000000 May 2 20:26:56 mwpc55 kernel: [ 71.932138] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:26:56 mwpc55 kernel: [ 71.932139] CR2: 000000002a1f5a71 CR3: 0000000bbd80a000 CR4: 0000000000340ee0 May 2 20:26:56 mwpc55 kernel: [ 71.932140] Call Trace: May 2 20:26:56 mwpc55 kernel: [ 71.932143] ? mempool_alloc_slab+0x15/0x20 May 2 20:26:56 mwpc55 kernel: [ 71.932146] ? wait_woken+0x80/0x80 May 2 20:26:56 mwpc55 kernel: [ 71.932148] mempool_alloc_slab+0x15/0x20 May 2 20:26:56 mwpc55 kernel: [ 71.932150] mempool_alloc+0x71/0x190 May 2 20:26:56 mwpc55 kernel: [ 71.932161] rpc_malloc+0x9d/0xd0 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.932172] call_allocate+0xbb/0x1f0 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.932181] ? call_refreshresult+0x140/0x140 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.932190] ? rpc_exit+0x30/0x30 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.932199] __rpc_execute+0x8a/0x420 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.932202] ? __switch_to_asm+0x34/0x70 May 2 20:26:56 mwpc55 kernel: [ 71.932211] rpc_async_schedule+0x30/0x50 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.932214] process_one_work+0x1fd/0x3f0 May 2 20:26:56 mwpc55 kernel: [ 71.932216] worker_thread+0x34/0x410 May 2 20:26:56 mwpc55 kernel: [ 71.932218] kthread+0x121/0x140 May 2 20:26:56 mwpc55 kernel: [ 71.932220] ? process_one_work+0x3f0/0x3f0 May 2 20:26:56 mwpc55 kernel: [ 71.932221] ? kthread_park+0xb0/0xb0 May 2 20:26:56 mwpc55 kernel: [ 71.932223] ret_from_fork+0x22/0x40 May 2 20:26:56 mwpc55 kernel: [ 71.932225] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache edac_mce_amd snd_hda_codec_hdmi joydev kvm irqbypass hid_roccat_koneplus hid_roccat hid_roccat_common nvidia_uvm(OE) nvidia_drm(POE) nvidia_modeset(POE) snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_ca0132 crct10dif_pclmul crc32_pclmul snd_usb_audio snd_hda_intel ghash_clmulni_intel snd_usbmidi_lib snd_intel_nhlt mc snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi nvidia(POE) snd_pcm snd_seq_midi_event snd_rawmidi aesni_intel drm_kms_helper snd_seq aes_x86_64 crypto_simd eeepc_wmi snd_seq_device cryptd asus_wmi glue_helper input_leds sparse_keymap snd_timer mxm_wmi video drm snd ipmi_devintf serio_raw wmi_bmof ipmi_msghandler fb_sys_fops syscopyarea soundcore sysfillrect sysimgblt k10temp ccp mac_hid sch_fq_codel asus_wmi_sensors(OE) parport_pc ppdev lp sunrpc parport ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c dm_mirror dm_region_hash dm_log May 2 20:26:56 mwpc55 kernel: [ 71.932257] hid_plantronics hid_steam hid_generic usbhid hid igb i2c_piix4 nvme dca ahci i2c_algo_bit nvme_core libahci gpio_amdpt wmi gpio_generic May 2 20:26:56 mwpc55 kernel: [ 71.932266] CR2: 000000002a1f5a71 May 2 20:26:56 mwpc55 kernel: [ 71.932268] ---[ end trace 1ac730932028eb57 ]--- May 2 20:26:56 mwpc55 kernel: [ 71.932270] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:26:56 mwpc55 kernel: [ 71.932271] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:26:56 mwpc55 kernel: [ 71.932272] RSP: 0018:ffff9aa8c2ce7cd8 EFLAGS: 00010206 May 2 20:26:56 mwpc55 kernel: [ 71.932273] RAX: 000000005c05ee77 RBX: 000000005c05ee77 RCX: 00000000000001ba May 2 20:26:56 mwpc55 kernel: [ 71.932274] RDX: 00000000000001b9 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:26:56 mwpc55 kernel: [ 71.932275] RBP: ffff9aa8c2ce7d08 R08: ffff8b709e771ed0 R09: ffff8b7098006d80 May 2 20:26:56 mwpc55 kernel: [ 71.932276] R10: ffff9aa8c2ce7dd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:26:56 mwpc55 kernel: [ 71.932277] R13: ffff8b7096a0ad80 R14: 000000005c05ee77 R15: ffff8b7096a0ad80 May 2 20:26:56 mwpc55 kernel: [ 71.932279] FS: 0000000000000000(0000) GS:ffff8b709e700000(0000) knlGS:0000000000000000 May 2 20:26:56 mwpc55 kernel: [ 71.932280] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:26:56 mwpc55 kernel: [ 71.932281] CR2: 000000002a1f5a71 CR3: 0000000bbd80a000 CR4: 0000000000340ee0 May 2 20:26:56 mwpc55 kernel: [ 71.945840] ------------[ cut here ]------------ May 2 20:26:56 mwpc55 kernel: [ 71.945842] virt_to_cache: Object is not a Slab page! May 2 20:26:56 mwpc55 kernel: [ 71.945850] WARNING: CPU: 21 PID: 432 at /build/linux-hwe-NGcyWb/linux-hwe-5.3.0/mm/slab.h:410 kmem_cache_free+0x1f3/0x2b0 May 2 20:26:56 mwpc55 kernel: [ 71.945851] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache edac_mce_amd snd_hda_codec_hdmi joydev kvm irqbypass hid_roccat_koneplus hid_roccat hid_roccat_common nvidia_uvm(OE) nvidia_drm(POE) nvidia_modeset(POE) snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_ca0132 crct10dif_pclmul crc32_pclmul snd_usb_audio snd_hda_intel ghash_clmulni_intel snd_usbmidi_lib snd_intel_nhlt mc snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi nvidia(POE) snd_pcm snd_seq_midi_event snd_rawmidi aesni_intel drm_kms_helper snd_seq aes_x86_64 crypto_simd eeepc_wmi snd_seq_device cryptd asus_wmi glue_helper input_leds sparse_keymap snd_timer mxm_wmi video drm snd ipmi_devintf serio_raw wmi_bmof ipmi_msghandler fb_sys_fops syscopyarea soundcore sysfillrect sysimgblt k10temp ccp mac_hid sch_fq_codel asus_wmi_sensors(OE) parport_pc ppdev lp sunrpc parport ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c dm_mirror dm_region_hash dm_log May 2 20:26:56 mwpc55 kernel: [ 71.945872] hid_plantronics hid_steam hid_generic usbhid hid igb i2c_piix4 nvme dca ahci i2c_algo_bit nvme_core libahci gpio_amdpt wmi gpio_generic May 2 20:26:56 mwpc55 kernel: [ 71.945880] CPU: 21 PID: 432 Comm: kworker/u64:3 Tainted: P D OE 5.3.0-51-generic #44~18.04.2-Ubuntu May 2 20:26:56 mwpc55 kernel: [ 71.945881] Hardware name: System manufacturer System Product Name/ROG CROSSHAIR VII HERO (WI-FI), BIOS 3004 12/16/2019 May 2 20:26:56 mwpc55 kernel: [ 71.945893] Workqueue: rpciod rpc_async_schedule [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.945895] RIP: 0010:kmem_cache_free+0x1f3/0x2b0 May 2 20:26:56 mwpc55 kernel: [ 71.945897] Code: 85 25 ff ff ff 0f 0b 80 3d 35 d3 56 01 00 75 88 48 c7 c6 20 fc e4 b8 48 c7 c7 d8 37 14 b9 c6 05 1e d3 56 01 01 e8 ed f5 df ff <0f> 0b e9 67 ff ff ff 65 8b 05 3f 57 f7 47 89 c0 48 0f a3 05 e5 93 May 2 20:26:56 mwpc55 kernel: [ 71.945898] RSP: 0018:ffff9aa8c0b97d40 EFLAGS: 00010286 May 2 20:26:56 mwpc55 kernel: [ 71.945899] RAX: 0000000000000000 RBX: ffff8b6f5c897a90 RCX: 0000000000000006 May 2 20:26:56 mwpc55 kernel: [ 71.945900] RDX: 0000000000000007 RSI: 0000000000000082 RDI: ffff8b709eb57440 May 2 20:26:56 mwpc55 kernel: [ 71.945901] RBP: ffff9aa8c0b97d68 R08: 00000000000005e6 R09: ffffffffb999f9c4 May 2 20:26:56 mwpc55 kernel: [ 71.945902] R10: ffff9aa8c0b97d30 R11: ffff9aa8c0b97b90 R12: ffff8b6f5c897a90 May 2 20:26:56 mwpc55 kernel: [ 71.945903] R13: 0000000000000000 R14: ffff8b708fe8acb0 R15: ffff8b6fdc897a90 May 2 20:26:56 mwpc55 kernel: [ 71.945905] FS: 0000000000000000(0000) GS:ffff8b709eb40000(0000) knlGS:0000000000000000 May 2 20:26:56 mwpc55 kernel: [ 71.945906] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:26:56 mwpc55 kernel: [ 71.945907] CR2: 00007f4e221fdff0 CR3: 0000000eb2afc000 CR4: 0000000000340ee0 May 2 20:26:56 mwpc55 kernel: [ 71.945908] Call Trace: May 2 20:26:56 mwpc55 kernel: [ 71.945919] ? rpc_exit+0x30/0x30 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.945921] mempool_free_slab+0x17/0x20 May 2 20:26:56 mwpc55 kernel: [ 71.945922] mempool_free+0x2f/0x90 May 2 20:26:56 mwpc55 kernel: [ 71.945932] rpc_free+0x50/0x70 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.945941] xprt_release+0x92/0x1c0 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.945950] ? rpc_exit+0x30/0x30 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.945958] rpc_exit_task+0x5f/0xc0 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.945967] __rpc_execute+0x8a/0x420 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.945969] ? __switch_to_asm+0x34/0x70 May 2 20:26:56 mwpc55 kernel: [ 71.945978] rpc_async_schedule+0x30/0x50 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.945980] process_one_work+0x1fd/0x3f0 May 2 20:26:56 mwpc55 kernel: [ 71.945982] worker_thread+0x34/0x410 May 2 20:26:56 mwpc55 kernel: [ 71.945984] kthread+0x121/0x140 May 2 20:26:56 mwpc55 kernel: [ 71.945986] ? process_one_work+0x3f0/0x3f0 May 2 20:26:56 mwpc55 kernel: [ 71.945987] ? kthread_park+0xb0/0xb0 May 2 20:26:56 mwpc55 kernel: [ 71.945989] ret_from_fork+0x22/0x40 May 2 20:26:56 mwpc55 kernel: [ 71.945991] ---[ end trace 1ac730932028eb58 ]--- May 2 20:26:56 mwpc55 kernel: [ 71.946008] general protection fault: 0000 [#5] SMP NOPTI May 2 20:26:56 mwpc55 kernel: [ 71.946014] CPU: 21 PID: 432 Comm: kworker/u64:3 Tainted: P D W OE 5.3.0-51-generic #44~18.04.2-Ubuntu May 2 20:26:56 mwpc55 kernel: [ 71.946026] Hardware name: System manufacturer System Product Name/ROG CROSSHAIR VII HERO (WI-FI), BIOS 3004 12/16/2019 May 2 20:26:56 mwpc55 kernel: [ 71.946040] Workqueue: rpciod rpc_async_schedule [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.946049] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:26:56 mwpc55 kernel: [ 71.946057] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:26:56 mwpc55 kernel: [ 71.946062] RSP: 0018:ffff9aa8c0b97cd8 EFLAGS: 00010282 May 2 20:26:56 mwpc55 kernel: [ 71.946072] RAX: a30a97eefc91553e RBX: a30a97eefc91553e RCX: 00000000000001d1 May 2 20:26:56 mwpc55 kernel: [ 71.946077] RDX: 00000000000001d0 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:26:56 mwpc55 kernel: [ 71.946083] RBP: ffff9aa8c0b97d08 R08: ffff8b709eb71ed0 R09: ffff8b7098006d80 May 2 20:26:56 mwpc55 kernel: [ 71.946089] R10: ffff9aa8c0b97dd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:26:56 mwpc55 kernel: [ 71.946096] R13: ffff8b7096a0ad80 R14: a30a97eefc91553e R15: ffff8b7096a0ad80 May 2 20:26:56 mwpc55 kernel: [ 71.946103] FS: 0000000000000000(0000) GS:ffff8b709eb40000(0000) knlGS:0000000000000000 May 2 20:26:56 mwpc55 kernel: [ 71.946107] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:26:56 mwpc55 kernel: [ 71.946108] CR2: 00007f4e221fdff0 CR3: 0000000eb2afc000 CR4: 0000000000340ee0 May 2 20:26:56 mwpc55 kernel: [ 71.946109] Call Trace: May 2 20:26:56 mwpc55 kernel: [ 71.946111] ? mempool_alloc_slab+0x15/0x20 May 2 20:26:56 mwpc55 kernel: [ 71.946113] ? wait_woken+0x80/0x80 May 2 20:26:56 mwpc55 kernel: [ 71.946114] mempool_alloc_slab+0x15/0x20 May 2 20:26:56 mwpc55 kernel: [ 71.946116] mempool_alloc+0x71/0x190 May 2 20:26:56 mwpc55 kernel: [ 71.946125] rpc_malloc+0x9d/0xd0 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.946135] call_allocate+0xbb/0x1f0 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.946146] ? call_refreshresult+0x140/0x140 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.946154] ? rpc_exit+0x30/0x30 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.946164] __rpc_execute+0x8a/0x420 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.946167] ? __switch_to_asm+0x34/0x70 May 2 20:26:56 mwpc55 kernel: [ 71.946181] rpc_async_schedule+0x30/0x50 [sunrpc] May 2 20:26:56 mwpc55 kernel: [ 71.946183] process_one_work+0x1fd/0x3f0 May 2 20:26:56 mwpc55 kernel: [ 71.946186] worker_thread+0x34/0x410 May 2 20:26:56 mwpc55 kernel: [ 71.946188] kthread+0x121/0x140 May 2 20:26:56 mwpc55 kernel: [ 71.946190] ? process_one_work+0x3f0/0x3f0 May 2 20:26:56 mwpc55 kernel: [ 71.946196] ? kthread_park+0xb0/0xb0 May 2 20:26:56 mwpc55 kernel: [ 71.946203] ret_from_fork+0x22/0x40 May 2 20:26:56 mwpc55 kernel: [ 71.946211] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache edac_mce_amd snd_hda_codec_hdmi joydev kvm irqbypass hid_roccat_koneplus hid_roccat hid_roccat_common nvidia_uvm(OE) nvidia_drm(POE) nvidia_modeset(POE) snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_ca0132 crct10dif_pclmul crc32_pclmul snd_usb_audio snd_hda_intel ghash_clmulni_intel snd_usbmidi_lib snd_intel_nhlt mc snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi nvidia(POE) snd_pcm snd_seq_midi_event snd_rawmidi aesni_intel drm_kms_helper snd_seq aes_x86_64 crypto_simd eeepc_wmi snd_seq_device cryptd asus_wmi glue_helper input_leds sparse_keymap snd_timer mxm_wmi video drm snd ipmi_devintf serio_raw wmi_bmof ipmi_msghandler fb_sys_fops syscopyarea soundcore sysfillrect sysimgblt k10temp ccp mac_hid sch_fq_codel asus_wmi_sensors(OE) parport_pc ppdev lp sunrpc parport ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c dm_mirror dm_region_hash dm_log May 2 20:26:56 mwpc55 kernel: [ 71.946244] hid_plantronics hid_steam hid_generic usbhid hid igb i2c_piix4 nvme dca ahci i2c_algo_bit nvme_core libahci gpio_amdpt wmi gpio_generic May 2 20:26:56 mwpc55 kernel: [ 71.946252] ---[ end trace 1ac730932028eb59 ]--- May 2 20:26:56 mwpc55 kernel: [ 71.946254] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:26:56 mwpc55 kernel: [ 71.946255] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:26:56 mwpc55 kernel: [ 71.946257] RSP: 0018:ffff9aa8c2ce7cd8 EFLAGS: 00010206 May 2 20:26:56 mwpc55 kernel: [ 71.946259] RAX: 000000005c05ee77 RBX: 000000005c05ee77 RCX: 00000000000001ba May 2 20:26:56 mwpc55 kernel: [ 71.946262] RDX: 00000000000001b9 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:26:56 mwpc55 kernel: [ 71.946263] RBP: ffff9aa8c2ce7d08 R08: ffff8b709e771ed0 R09: ffff8b7098006d80 May 2 20:26:56 mwpc55 kernel: [ 71.946264] R10: ffff9aa8c2ce7dd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:26:56 mwpc55 kernel: [ 71.946265] R13: ffff8b7096a0ad80 R14: 000000005c05ee77 R15: ffff8b7096a0ad80 May 2 20:26:56 mwpc55 kernel: [ 71.946267] FS: 0000000000000000(0000) GS:ffff8b709eb40000(0000) knlGS:0000000000000000 May 2 20:26:56 mwpc55 kernel: [ 71.946274] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:26:56 mwpc55 kernel: [ 71.946282] CR2: 00007f4e221fdff0 CR3: 0000000eb2afc000 CR4: 0000000000340ee0 May 2 20:27:02 mwpc55 kernel: [ 77.685450] general protection fault: 0000 [#6] SMP NOPTI May 2 20:27:02 mwpc55 kernel: [ 77.685454] CPU: 21 PID: 465 Comm: kworker/u64:8 Tainted: P D W OE 5.3.0-51-generic #44~18.04.2-Ubuntu May 2 20:27:02 mwpc55 kernel: [ 77.685456] Hardware name: System manufacturer System Product Name/ROG CROSSHAIR VII HERO (WI-FI), BIOS 3004 12/16/2019 May 2 20:27:02 mwpc55 kernel: [ 77.685471] Workqueue: rpciod rpc_async_schedule [sunrpc] May 2 20:27:02 mwpc55 kernel: [ 77.685476] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:27:02 mwpc55 kernel: [ 77.685478] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:27:02 mwpc55 kernel: [ 77.685479] RSP: 0018:ffff9aa8c110fcd8 EFLAGS: 00210282 May 2 20:27:02 mwpc55 kernel: [ 77.685481] RAX: a30a97eefc91553e RBX: a30a97eefc91553e RCX: 00000000000001d1 May 2 20:27:02 mwpc55 kernel: [ 77.685482] RDX: 00000000000001d0 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:27:02 mwpc55 kernel: [ 77.685483] RBP: ffff9aa8c110fd08 R08: ffff8b709eb71ed0 R09: ffff8b7098006d80 May 2 20:27:02 mwpc55 kernel: [ 77.685484] R10: ffff9aa8c110fdd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:27:02 mwpc55 kernel: [ 77.685485] R13: ffff8b7096a0ad80 R14: a30a97eefc91553e R15: ffff8b7096a0ad80 May 2 20:27:02 mwpc55 kernel: [ 77.685487] FS: 0000000000000000(0000) GS:ffff8b709eb40000(0000) knlGS:0000000000000000 May 2 20:27:02 mwpc55 kernel: [ 77.685488] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:27:02 mwpc55 kernel: [ 77.685489] CR2: 00000000cf1ff000 CR3: 0000000bbd80a000 CR4: 0000000000340ee0 May 2 20:27:02 mwpc55 kernel: [ 77.685490] Call Trace: May 2 20:27:02 mwpc55 kernel: [ 77.685494] ? mempool_alloc_slab+0x15/0x20 May 2 20:27:02 mwpc55 kernel: [ 77.685497] ? wait_woken+0x80/0x80 May 2 20:27:02 mwpc55 kernel: [ 77.685498] mempool_alloc_slab+0x15/0x20 May 2 20:27:02 mwpc55 kernel: [ 77.685500] mempool_alloc+0x71/0x190 May 2 20:27:02 mwpc55 kernel: [ 77.685510] rpc_malloc+0x9d/0xd0 [sunrpc] May 2 20:27:02 mwpc55 kernel: [ 77.685522] call_allocate+0xbb/0x1f0 [sunrpc] May 2 20:27:02 mwpc55 kernel: [ 77.685531] ? call_refreshresult+0x140/0x140 [sunrpc] May 2 20:27:02 mwpc55 kernel: [ 77.685540] ? rpc_exit+0x30/0x30 [sunrpc] May 2 20:27:02 mwpc55 kernel: [ 77.685549] __rpc_execute+0x8a/0x420 [sunrpc] May 2 20:27:02 mwpc55 kernel: [ 77.685552] ? __switch_to_asm+0x34/0x70 May 2 20:27:02 mwpc55 kernel: [ 77.685561] rpc_async_schedule+0x30/0x50 [sunrpc] May 2 20:27:02 mwpc55 kernel: [ 77.685564] process_one_work+0x1fd/0x3f0 May 2 20:27:02 mwpc55 kernel: [ 77.685566] worker_thread+0x34/0x410 May 2 20:27:02 mwpc55 kernel: [ 77.685568] kthread+0x121/0x140 May 2 20:27:02 mwpc55 kernel: [ 77.685570] ? process_one_work+0x3f0/0x3f0 May 2 20:27:02 mwpc55 kernel: [ 77.685571] ? kthread_park+0xb0/0xb0 May 2 20:27:02 mwpc55 kernel: [ 77.685573] ret_from_fork+0x22/0x40 May 2 20:27:02 mwpc55 kernel: [ 77.685575] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache edac_mce_amd snd_hda_codec_hdmi joydev kvm irqbypass hid_roccat_koneplus hid_roccat hid_roccat_common nvidia_uvm(OE) nvidia_drm(POE) nvidia_modeset(POE) snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_ca0132 crct10dif_pclmul crc32_pclmul snd_usb_audio snd_hda_intel ghash_clmulni_intel snd_usbmidi_lib snd_intel_nhlt mc snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi nvidia(POE) snd_pcm snd_seq_midi_event snd_rawmidi aesni_intel drm_kms_helper snd_seq aes_x86_64 crypto_simd eeepc_wmi snd_seq_device cryptd asus_wmi glue_helper input_leds sparse_keymap snd_timer mxm_wmi video drm snd ipmi_devintf serio_raw wmi_bmof ipmi_msghandler fb_sys_fops syscopyarea soundcore sysfillrect sysimgblt k10temp ccp mac_hid sch_fq_codel asus_wmi_sensors(OE) parport_pc ppdev lp sunrpc parport ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c dm_mirror dm_region_hash dm_log May 2 20:27:02 mwpc55 kernel: [ 77.685605] hid_plantronics hid_steam hid_generic usbhid hid igb i2c_piix4 nvme dca ahci i2c_algo_bit nvme_core libahci gpio_amdpt wmi gpio_generic May 2 20:27:02 mwpc55 kernel: [ 77.685614] ---[ end trace 1ac730932028eb5a ]--- May 2 20:27:02 mwpc55 kernel: [ 77.685615] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:27:02 mwpc55 kernel: [ 77.685617] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:27:02 mwpc55 kernel: [ 77.685618] RSP: 0018:ffff9aa8c2ce7cd8 EFLAGS: 00010206 May 2 20:27:02 mwpc55 kernel: [ 77.685619] RAX: 000000005c05ee77 RBX: 000000005c05ee77 RCX: 00000000000001ba May 2 20:27:02 mwpc55 kernel: [ 77.685620] RDX: 00000000000001b9 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:27:02 mwpc55 kernel: [ 77.685621] RBP: ffff9aa8c2ce7d08 R08: ffff8b709e771ed0 R09: ffff8b7098006d80 May 2 20:27:02 mwpc55 kernel: [ 77.685622] R10: ffff9aa8c2ce7dd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:27:02 mwpc55 kernel: [ 77.685623] R13: ffff8b7096a0ad80 R14: 000000005c05ee77 R15: ffff8b7096a0ad80 May 2 20:27:02 mwpc55 kernel: [ 77.685625] FS: 0000000000000000(0000) GS:ffff8b709eb40000(0000) knlGS:0000000000000000 May 2 20:27:02 mwpc55 kernel: [ 77.685626] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:27:02 mwpc55 kernel: [ 77.685627] CR2: 00000000cf1ff000 CR3: 0000000bbd80a000 CR4: 0000000000340ee0 May 2 20:27:04 mwpc55 kernel: [ 80.129448] general protection fault: 0000 [#7] SMP NOPTI May 2 20:27:04 mwpc55 kernel: [ 80.129452] CPU: 21 PID: 473 Comm: kworker/u64:12 Tainted: P D W OE 5.3.0-51-generic #44~18.04.2-Ubuntu May 2 20:27:04 mwpc55 kernel: [ 80.129453] Hardware name: System manufacturer System Product Name/ROG CROSSHAIR VII HERO (WI-FI), BIOS 3004 12/16/2019 May 2 20:27:04 mwpc55 kernel: [ 80.129459] Workqueue: writeback wb_workfn (flush-253:1) May 2 20:27:04 mwpc55 kernel: [ 80.129463] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:27:04 mwpc55 kernel: [ 80.129465] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:27:04 mwpc55 kernel: [ 80.129466] RSP: 0018:ffff9aa8c113f258 EFLAGS: 00010282 May 2 20:27:04 mwpc55 kernel: [ 80.129468] RAX: a30a97eefc91553e RBX: a30a97eefc91553e RCX: 00000000000001d1 May 2 20:27:04 mwpc55 kernel: [ 80.129469] RDX: 00000000000001d0 RSI: 0000000000092a20 RDI: 0000000000031ed0 May 2 20:27:04 mwpc55 kernel: [ 80.129470] RBP: ffff9aa8c113f288 R08: ffff8b709eb71ed0 R09: ffff8b6f34881000 May 2 20:27:04 mwpc55 kernel: [ 80.129471] R10: 0000000000000028 R11: 00000000000000a8 R12: 0000000000092a20 May 2 20:27:04 mwpc55 kernel: [ 80.129472] R13: ffff8b7096a0ad80 R14: a30a97eefc91553e R15: ffff8b7096a0ad80 May 2 20:27:04 mwpc55 kernel: [ 80.129474] FS: 0000000000000000(0000) GS:ffff8b709eb40000(0000) knlGS:0000000000000000 May 2 20:27:04 mwpc55 kernel: [ 80.129475] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:27:04 mwpc55 kernel: [ 80.129476] CR2: 00007f9f0d7e0a18 CR3: 0000000bbd80a000 CR4: 0000000000340ee0 May 2 20:27:04 mwpc55 kernel: [ 80.129477] Call Trace: May 2 20:27:04 mwpc55 kernel: [ 80.129480] ? mempool_alloc_slab+0x15/0x20 May 2 20:27:04 mwpc55 kernel: [ 80.129484] ? wait_woken+0x80/0x80 May 2 20:27:04 mwpc55 kernel: [ 80.129485] mempool_alloc_slab+0x15/0x20 May 2 20:27:04 mwpc55 kernel: [ 80.129487] mempool_alloc+0x71/0x190 May 2 20:27:04 mwpc55 kernel: [ 80.129490] ? alloc_iova_fast+0x60/0x250 May 2 20:27:04 mwpc55 kernel: [ 80.129491] ? iommu_map_page+0x3bb/0x4b0 May 2 20:27:04 mwpc55 kernel: [ 80.129494] sg_pool_alloc+0x45/0x50 May 2 20:27:04 mwpc55 kernel: [ 80.129497] __sg_alloc_table+0x75/0x160 May 2 20:27:04 mwpc55 kernel: [ 80.129499] sg_alloc_table_chained+0x44/0xa0 May 2 20:27:04 mwpc55 kernel: [ 80.129500] ? mac_pton+0xb0/0xb0 May 2 20:27:04 mwpc55 kernel: [ 80.129502] ? __sbitmap_queue_get+0x2b/0xa0 May 2 20:27:04 mwpc55 kernel: [ 80.129505] scsi_init_io+0x54/0x190 May 2 20:27:04 mwpc55 kernel: [ 80.129507] ? __blk_mq_get_tag+0x21/0x80 May 2 20:27:04 mwpc55 kernel: [ 80.129510] sd_init_command+0x36f/0xb20 May 2 20:27:04 mwpc55 kernel: [ 80.129513] ? ktime_get+0x43/0xb0 May 2 20:27:04 mwpc55 kernel: [ 80.129515] scsi_queue_rq+0x530/0xa60 May 2 20:27:04 mwpc55 kernel: [ 80.129517] blk_mq_dispatch_rq_list+0x93/0x540 May 2 20:27:04 mwpc55 kernel: [ 80.129519] ? elv_rb_del+0x24/0x30 May 2 20:27:04 mwpc55 kernel: [ 80.129521] ? deadline_remove_request+0x4e/0xb0 May 2 20:27:04 mwpc55 kernel: [ 80.129524] blk_mq_do_dispatch_sched+0x67/0x100 May 2 20:27:04 mwpc55 kernel: [ 80.129526] blk_mq_sched_dispatch_requests+0xfd/0x170 May 2 20:27:04 mwpc55 kernel: [ 80.129528] __blk_mq_run_hw_queue+0x5a/0x110 May 2 20:27:04 mwpc55 kernel: [ 80.129530] __blk_mq_delay_run_hw_queue+0x107/0x160 May 2 20:27:04 mwpc55 kernel: [ 80.129532] blk_mq_run_hw_queue+0x56/0x100 May 2 20:27:04 mwpc55 kernel: [ 80.129534] blk_mq_sched_insert_requests+0x7a/0x100 May 2 20:27:04 mwpc55 kernel: [ 80.129536] blk_mq_flush_plug_list+0x1eb/0x2a0 May 2 20:27:04 mwpc55 kernel: [ 80.129539] blk_flush_plug_list+0xd1/0x100 May 2 20:27:04 mwpc55 kernel: [ 80.129541] blk_mq_make_request+0x306/0x590 May 2 20:27:04 mwpc55 kernel: [ 80.129544] ? dm_process_bio+0x151/0x220 May 2 20:27:04 mwpc55 kernel: [ 80.129546] generic_make_request+0x121/0x300 May 2 20:27:04 mwpc55 kernel: [ 80.129549] submit_bio+0x40/0x160 May 2 20:27:04 mwpc55 kernel: [ 80.129550] ? submit_bio+0x40/0x160 May 2 20:27:04 mwpc55 kernel: [ 80.129552] ? bio_add_page+0x3c/0x90 May 2 20:27:04 mwpc55 kernel: [ 80.129554] ext4_io_submit+0x4d/0x60 May 2 20:27:04 mwpc55 kernel: [ 80.129556] ext4_bio_write_page+0x28d/0x550 May 2 20:27:04 mwpc55 kernel: [ 80.129559] mpage_submit_page+0x59/0x80 May 2 20:27:04 mwpc55 kernel: [ 80.129561] mpage_map_and_submit_buffers+0x132/0x220 May 2 20:27:04 mwpc55 kernel: [ 80.129564] ext4_writepages+0x82a/0xe90 May 2 20:27:04 mwpc55 kernel: [ 80.129567] do_writepages+0x4b/0xe0 May 2 20:27:04 mwpc55 kernel: [ 80.129569] ? do_writepages+0x4b/0xe0 May 2 20:27:04 mwpc55 kernel: [ 80.129583] ? decode_getfattr_generic.constprop.110+0x192/0x250 [nfsv4] May 2 20:27:04 mwpc55 kernel: [ 80.129585] __writeback_single_inode+0x40/0x330 May 2 20:27:04 mwpc55 kernel: [ 80.129587] ? __writeback_single_inode+0x40/0x330 May 2 20:27:04 mwpc55 kernel: [ 80.129589] writeback_sb_inodes+0x1e6/0x510 May 2 20:27:04 mwpc55 kernel: [ 80.129592] __writeback_inodes_wb+0x67/0xb0 May 2 20:27:04 mwpc55 kernel: [ 80.129594] wb_writeback+0x265/0x2f0 May 2 20:27:04 mwpc55 kernel: [ 80.129596] ? perf_addr_filters_splice+0xe0/0x110 May 2 20:27:04 mwpc55 kernel: [ 80.129598] wb_workfn+0x180/0x400 May 2 20:27:04 mwpc55 kernel: [ 80.129600] ? wb_workfn+0x180/0x400 May 2 20:27:04 mwpc55 kernel: [ 80.129603] process_one_work+0x1fd/0x3f0 May 2 20:27:04 mwpc55 kernel: [ 80.129605] worker_thread+0x34/0x410 May 2 20:27:04 mwpc55 kernel: [ 80.129607] kthread+0x121/0x140 May 2 20:27:04 mwpc55 kernel: [ 80.129609] ? process_one_work+0x3f0/0x3f0 May 2 20:27:04 mwpc55 kernel: [ 80.129610] ? kthread_park+0xb0/0xb0 May 2 20:27:04 mwpc55 kernel: [ 80.129613] ret_from_fork+0x22/0x40 May 2 20:27:04 mwpc55 kernel: [ 80.129614] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache edac_mce_amd snd_hda_codec_hdmi joydev kvm irqbypass hid_roccat_koneplus hid_roccat hid_roccat_common nvidia_uvm(OE) nvidia_drm(POE) nvidia_modeset(POE) snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_ca0132 crct10dif_pclmul crc32_pclmul snd_usb_audio snd_hda_intel ghash_clmulni_intel snd_usbmidi_lib snd_intel_nhlt mc snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi nvidia(POE) snd_pcm snd_seq_midi_event snd_rawmidi aesni_intel drm_kms_helper snd_seq aes_x86_64 crypto_simd eeepc_wmi snd_seq_device cryptd asus_wmi glue_helper input_leds sparse_keymap snd_timer mxm_wmi video drm snd ipmi_devintf serio_raw wmi_bmof ipmi_msghandler fb_sys_fops syscopyarea soundcore sysfillrect sysimgblt k10temp ccp mac_hid sch_fq_codel asus_wmi_sensors(OE) parport_pc ppdev lp sunrpc parport ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c dm_mirror dm_region_hash dm_log May 2 20:27:04 mwpc55 kernel: [ 80.129645] hid_plantronics hid_steam hid_generic usbhid hid igb i2c_piix4 nvme dca ahci i2c_algo_bit nvme_core libahci gpio_amdpt wmi gpio_generic May 2 20:27:04 mwpc55 kernel: [ 80.129654] ---[ end trace 1ac730932028eb5b ]--- May 2 20:27:04 mwpc55 kernel: [ 80.129656] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:27:04 mwpc55 kernel: [ 80.129658] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:27:04 mwpc55 kernel: [ 80.129659] RSP: 0018:ffff9aa8c2ce7cd8 EFLAGS: 00010206 May 2 20:27:04 mwpc55 kernel: [ 80.129660] RAX: 000000005c05ee77 RBX: 000000005c05ee77 RCX: 00000000000001ba May 2 20:27:04 mwpc55 kernel: [ 80.129661] RDX: 00000000000001b9 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:27:04 mwpc55 kernel: [ 80.129663] RBP: ffff9aa8c2ce7d08 R08: ffff8b709e771ed0 R09: ffff8b7098006d80 May 2 20:27:04 mwpc55 kernel: [ 80.129664] R10: ffff9aa8c2ce7dd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:27:04 mwpc55 kernel: [ 80.129665] R13: ffff8b7096a0ad80 R14: 000000005c05ee77 R15: ffff8b7096a0ad80 May 2 20:27:04 mwpc55 kernel: [ 80.129666] FS: 0000000000000000(0000) GS:ffff8b709eb40000(0000) knlGS:0000000000000000 May 2 20:27:04 mwpc55 kernel: [ 80.129667] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:27:04 mwpc55 kernel: [ 80.129668] CR2: 00007f9f0d7e0a18 CR3: 0000000bbd80a000 CR4: 0000000000340ee0 May 2 20:27:15 mwpc55 kernel: [ 91.115450] BUG: unable to handle page fault for address: 000000002a1f5a71 May 2 20:27:15 mwpc55 kernel: [ 91.115453] #PF: supervisor read access in kernel mode May 2 20:27:15 mwpc55 kernel: [ 91.115455] #PF: error_code(0x0000) - not-present page May 2 20:27:15 mwpc55 kernel: [ 91.115456] PGD 0 P4D 0 May 2 20:27:15 mwpc55 kernel: [ 91.115459] Oops: 0000 [#8] SMP NOPTI May 2 20:27:15 mwpc55 kernel: [ 91.115462] CPU: 4 PID: 466 Comm: kworker/u64:9 Tainted: P D W OE 5.3.0-51-generic #44~18.04.2-Ubuntu May 2 20:27:15 mwpc55 kernel: [ 91.115463] Hardware name: System manufacturer System Product Name/ROG CROSSHAIR VII HERO (WI-FI), BIOS 3004 12/16/2019 May 2 20:27:15 mwpc55 kernel: [ 91.115479] Workqueue: rpciod rpc_async_schedule [sunrpc] May 2 20:27:15 mwpc55 kernel: [ 91.115484] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:27:15 mwpc55 kernel: [ 91.115486] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:27:15 mwpc55 kernel: [ 91.115488] RSP: 0018:ffff9aa8c1117cd8 EFLAGS: 00010206 May 2 20:27:15 mwpc55 kernel: [ 91.115489] RAX: 000000002a1f5a71 RBX: 000000002a1f5a71 RCX: 00000000000003c1 May 2 20:27:15 mwpc55 kernel: [ 91.115491] RDX: 00000000000003c0 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:27:15 mwpc55 kernel: [ 91.115492] RBP: ffff9aa8c1117d08 R08: ffff8b709e731ed0 R09: ffff8b7098006d80 May 2 20:27:15 mwpc55 kernel: [ 91.115493] R10: ffff9aa8c1117dd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:27:15 mwpc55 kernel: [ 91.115494] R13: ffff8b7096a0ad80 R14: 000000002a1f5a71 R15: ffff8b7096a0ad80 May 2 20:27:15 mwpc55 kernel: [ 91.115496] FS: 0000000000000000(0000) GS:ffff8b709e700000(0000) knlGS:0000000000000000 May 2 20:27:15 mwpc55 kernel: [ 91.115497] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:27:15 mwpc55 kernel: [ 91.115498] CR2: 000000002a1f5a71 CR3: 0000000fd4a74000 CR4: 0000000000340ee0 May 2 20:27:15 mwpc55 kernel: [ 91.115500] Call Trace: May 2 20:27:15 mwpc55 kernel: [ 91.115503] ? mempool_alloc_slab+0x15/0x20 May 2 20:27:15 mwpc55 kernel: [ 91.115506] ? wait_woken+0x80/0x80 May 2 20:27:15 mwpc55 kernel: [ 91.115508] mempool_alloc_slab+0x15/0x20 May 2 20:27:15 mwpc55 kernel: [ 91.115510] mempool_alloc+0x71/0x190 May 2 20:27:15 mwpc55 kernel: [ 91.115522] rpc_malloc+0x9d/0xd0 [sunrpc] May 2 20:27:15 mwpc55 kernel: [ 91.115534] call_allocate+0xbb/0x1f0 [sunrpc] May 2 20:27:15 mwpc55 kernel: [ 91.115544] ? call_refreshresult+0x140/0x140 [sunrpc] May 2 20:27:15 mwpc55 kernel: [ 91.115554] ? rpc_exit+0x30/0x30 [sunrpc] May 2 20:27:15 mwpc55 kernel: [ 91.115564] __rpc_execute+0x8a/0x420 [sunrpc] May 2 20:27:15 mwpc55 kernel: [ 91.115567] ? __switch_to_asm+0x34/0x70 May 2 20:27:15 mwpc55 kernel: [ 91.115577] rpc_async_schedule+0x30/0x50 [sunrpc] May 2 20:27:15 mwpc55 kernel: [ 91.115580] process_one_work+0x1fd/0x3f0 May 2 20:27:15 mwpc55 kernel: [ 91.115582] worker_thread+0x34/0x410 May 2 20:27:15 mwpc55 kernel: [ 91.115584] kthread+0x121/0x140 May 2 20:27:15 mwpc55 kernel: [ 91.115586] ? process_one_work+0x3f0/0x3f0 May 2 20:27:15 mwpc55 kernel: [ 91.115588] ? kthread_park+0xb0/0xb0 May 2 20:27:15 mwpc55 kernel: [ 91.115590] ret_from_fork+0x22/0x40 May 2 20:27:15 mwpc55 kernel: [ 91.115592] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache edac_mce_amd snd_hda_codec_hdmi joydev kvm irqbypass hid_roccat_koneplus hid_roccat hid_roccat_common nvidia_uvm(OE) nvidia_drm(POE) nvidia_modeset(POE) snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_ca0132 crct10dif_pclmul crc32_pclmul snd_usb_audio snd_hda_intel ghash_clmulni_intel snd_usbmidi_lib snd_intel_nhlt mc snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi nvidia(POE) snd_pcm snd_seq_midi_event snd_rawmidi aesni_intel drm_kms_helper snd_seq aes_x86_64 crypto_simd eeepc_wmi snd_seq_device cryptd asus_wmi glue_helper input_leds sparse_keymap snd_timer mxm_wmi video drm snd ipmi_devintf serio_raw wmi_bmof ipmi_msghandler fb_sys_fops syscopyarea soundcore sysfillrect sysimgblt k10temp ccp mac_hid sch_fq_codel asus_wmi_sensors(OE) parport_pc ppdev lp sunrpc parport ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c dm_mirror dm_region_hash dm_log May 2 20:27:15 mwpc55 kernel: [ 91.115625] hid_plantronics hid_steam hid_generic usbhid hid igb i2c_piix4 nvme dca ahci i2c_algo_bit nvme_core libahci gpio_amdpt wmi gpio_generic May 2 20:27:15 mwpc55 kernel: [ 91.115634] CR2: 000000002a1f5a71 May 2 20:27:15 mwpc55 kernel: [ 91.115636] ---[ end trace 1ac730932028eb5c ]--- May 2 20:27:15 mwpc55 kernel: [ 91.115638] RIP: 0010:kmem_cache_alloc+0x85/0x220 May 2 20:27:15 mwpc55 kernel: [ 91.115639] Code: 65 49 8b 50 08 65 4c 03 05 f0 42 f7 47 4d 8b 30 4d 85 f6 0f 84 5d 01 00 00 41 8b 5f 20 49 8b 3f 48 8d 4a 01 4c 89 f0 4c 01 f3 <48> 33 1b 49 33 9f 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd May 2 20:27:15 mwpc55 kernel: [ 91.115641] RSP: 0018:ffff9aa8c2ce7cd8 EFLAGS: 00010206 May 2 20:27:15 mwpc55 kernel: [ 91.115642] RAX: 000000005c05ee77 RBX: 000000005c05ee77 RCX: 00000000000001ba May 2 20:27:15 mwpc55 kernel: [ 91.115643] RDX: 00000000000001b9 RSI: 0000000000092800 RDI: 0000000000031ed0 May 2 20:27:15 mwpc55 kernel: [ 91.115644] RBP: ffff9aa8c2ce7d08 R08: ffff8b709e771ed0 R09: ffff8b7098006d80 May 2 20:27:15 mwpc55 kernel: [ 91.115645] R10: ffff9aa8c2ce7dd0 R11: ffffffffc0d579f0 R12: 0000000000092800 May 2 20:27:15 mwpc55 kernel: [ 91.115647] R13: ffff8b7096a0ad80 R14: 000000005c05ee77 R15: ffff8b7096a0ad80 May 2 20:27:15 mwpc55 kernel: [ 91.115648] FS: 0000000000000000(0000) GS:ffff8b709e700000(0000) knlGS:0000000000000000 May 2 20:27:15 mwpc55 kernel: [ 91.115649] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 2 20:27:15 mwpc55 kernel: [ 91.115650] CR2: 000000002a1f5a71 CR3: 0000000fd4a74000 CR4: 0000000000340ee0 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1858832 Title: invalid opcode xdr_buf_read_netobj on nfs4+krb5i directory Status in linux package in Ubuntu: Fix Released Status in linux source package in Disco: Fix Committed Bug description: == SRU Justification == The xdr_shrink_pagelen() added in commit 5f1bc39 (SUNRPC: Fix buffer handling of GSS MIC without slack), which applied in the Disco tree via stable update process, sometimes will raise the following kernel trace when the bytes to remove from buf->pages is larger than buf->page_len: [ 49.420081] ------------[ cut here ]------------ [ 49.420084] kernel BUG at /build/linux-hwe-FLYqTt/linux-hwe-5.0.0/net/sunrpc/xdr.c:434! [ 49.420092] invalid opcode: 0000 [#1] SMP NOPTI [ 49.420095] CPU: 16 PID: 469 Comm: kworker/u64:13 Tainted: P OE 5.0.0-37-generic #40~18.04.1-Ubuntu [ 49.420096] Hardware name: System manufacturer System Product Name/ROG CROSSHAIR VII HERO (WI-FI), BIOS 3004 12/16/2019 [ 49.420109] Workqueue: rpciod rpc_async_schedule [sunrpc] [ 49.420123] RIP: 0010:xdr_shrink_pagelen+0x9e/0xa0 [sunrpc] [ 49.420124] Code: 29 ea e8 85 f4 ff ff 44 8b 63 34 8b 43 3c 45 29 ec 44 29 e8 3b 43 40 44 89 63 34 89 43 3c 73 03 89 43 40 5b 41 5c 41 5d 5d c3 <0f> 0b 0f 1f 44 00 00 4c 8d 54 24 08 48 83 e4 f0 b9 04 00 00 00 41 [ 49.420126] RSP: 0018:ffffb93787be7b38 EFLAGS: 00010287 [ 49.420128] RAX: 000000000000000c RBX: 000000000000006c RCX: 000000000000001c [ 49.420129] RDX: 000000000000005c RSI: 0000000000000010 RDI: ffff8e1a87c56e50 [ 49.420130] RBP: ffffb93787be7b50 R08: ffff8e1b06999700 R09: 0000000000000000 [ 49.420131] R10: 00000000ffffffff R11: ffff8e1b0ecd1cd0 R12: ffff8e1a87c56e50 [ 49.420132] R13: ffffb93787be7c00 R14: 0000000000000058 R15: ffffffffc228e8c0 [ 49.420134] FS: 0000000000000000(0000) GS:ffff8e1b1ea00000(0000) knlGS:0000000000000000 [ 49.420135] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.420136] CR2: 00007ffa1faeb000 CR3: 0000000f19abe000 CR4: 0000000000340ee0 [ 49.420137] Call Trace: [ 49.420150] xdr_buf_read_netobj+0x122/0x180 [sunrpc] [ 49.420154] ? kzfree+0x2d/0x40 [ 49.420158] ? crypto_destroy_tfm+0x73/0xb0 [ 49.420162] gss_unwrap_resp_integ.isra.11+0x9c/0x100 [auth_rpcgss] [ 49.420164] ? gss_unwrap_resp_integ.isra.11+0x9c/0x100 [auth_rpcgss] [ 49.420167] gss_unwrap_resp+0x13c/0x280 [auth_rpcgss] [ 49.420170] ? gss_unwrap_resp+0x13c/0x280 [auth_rpcgss] [ 49.420172] ? gss_validate+0x242/0x300 [auth_rpcgss] [ 49.420184] ? nfs4_xdr_dec_readdir+0x100/0x100 [nfsv4] [ 49.420194] rpcauth_unwrap_resp+0x67/0xe0 [sunrpc] [ 49.420204] ? nfs4_xdr_dec_readdir+0x100/0x100 [nfsv4] [ 49.420213] call_decode+0x1c4/0x880 [sunrpc] [ 49.420216] ? __switch_to_asm+0x35/0x70 [ 49.420224] ? rpc_check_timeout+0x130/0x130 [sunrpc] [ 49.420233] __rpc_execute+0x7a/0x3f0 [sunrpc] [ 49.420242] rpc_async_schedule+0x12/0x20 [sunrpc] [ 49.420245] process_one_work+0x1fd/0x400 [ 49.420247] worker_thread+0x34/0x410 [ 49.420249] kthread+0x121/0x140 [ 49.420250] ? process_one_work+0x400/0x400 [ 49.420252] ? kthread_park+0xb0/0xb0 [ 49.420254] ret_from_fork+0x22/0x40 == Fixes == * e8d70b32 (SUNRPC: Fix another issue with MIC buffer space) Instead of calling BUG_ON, this patch will just cap the number of bytes that xdr_shrink_pagelen() will move. Only Disco kernel needs this patch, for Bionic and earlier they don't have 5f1bc39, and this fix has been applied to Eoan and onward. == Test == Test kernel can be found here: https://people.canonical.com/~phlin/kernel/lp-1858832-sunrpc-bufferhandling/ And it's been stress-tested by the bug reporter, Michael, this issue can no longer be reproduced. == Regression Potential == Low. It's just changing the length of bytes to shrink, change limited to a single driver with positive test result. == Original Bug Report == RELEASE=19.3 CODENAME=tricia EDITION="Cinnamon" DESCRIPTION="Linux Mint 19.3 Tricia" DESKTOP=Gnome TOOLKIT=GTK NEW_FEATURES_URL=https://www.linuxmint.com/rel_tricia_cinnamon_whatsnew.php RELEASE_NOTES_URL=https://www.linuxmint.com/rel_tricia_cinnamon.php USER_GUIDE_URL=https://www.linuxmint.com/documentation.php GRUB_TITLE=Linux Mint 19.3 Cinnamon My home dir is mounted through nfs on a local server via nfs4 and krb5i. When stressing the mounted directory or its sub-directories (sometimes starting firefox, sometimes starting thunderbird, nearly guaranteed when compiling, sometimes the login itself), it will eventually lead to the following stack-trace. The corresponding process is then stuck and accessing the mounted directory (like calling ls) easily yields further and similar stack trace and causing the process to also stuck. Currently I am running an AMD 3950x on a ASUS Crosshair VII Hero Wifi (chipset x470), but I had the same issues with an Intel 6700K on a ASUS Crosshair VIII Hero in fall of 2019. I couldn't be bother back then to report the bug so I just kept running a working kernel (~5.0.0-15 I think) without updating it. After Christmas I updated said Intel machine with the AMD machine, re-installed Linux Mint, installed all updates and therefore ran into this issue again. [ 49.420081] ------------[ cut here ]------------ [ 49.420084] kernel BUG at /build/linux-hwe-FLYqTt/linux-hwe-5.0.0/net/sunrpc/xdr.c:434! [ 49.420092] invalid opcode: 0000 [#1] SMP NOPTI [ 49.420095] CPU: 16 PID: 469 Comm: kworker/u64:13 Tainted: P OE 5.0.0-37-generic #40~18.04.1-Ubuntu [ 49.420096] Hardware name: System manufacturer System Product Name/ROG CROSSHAIR VII HERO (WI-FI), BIOS 3004 12/16/2019 [ 49.420109] Workqueue: rpciod rpc_async_schedule [sunrpc] [ 49.420123] RIP: 0010:xdr_shrink_pagelen+0x9e/0xa0 [sunrpc] [ 49.420124] Code: 29 ea e8 85 f4 ff ff 44 8b 63 34 8b 43 3c 45 29 ec 44 29 e8 3b 43 40 44 89 63 34 89 43 3c 73 03 89 43 40 5b 41 5c 41 5d 5d c3 <0f> 0b 0f 1f 44 00 00 4c 8d 54 24 08 48 83 e4 f0 b9 04 00 00 00 41 [ 49.420126] RSP: 0018:ffffb93787be7b38 EFLAGS: 00010287 [ 49.420128] RAX: 000000000000000c RBX: 000000000000006c RCX: 000000000000001c [ 49.420129] RDX: 000000000000005c RSI: 0000000000000010 RDI: ffff8e1a87c56e50 [ 49.420130] RBP: ffffb93787be7b50 R08: ffff8e1b06999700 R09: 0000000000000000 [ 49.420131] R10: 00000000ffffffff R11: ffff8e1b0ecd1cd0 R12: ffff8e1a87c56e50 [ 49.420132] R13: ffffb93787be7c00 R14: 0000000000000058 R15: ffffffffc228e8c0 [ 49.420134] FS: 0000000000000000(0000) GS:ffff8e1b1ea00000(0000) knlGS:0000000000000000 [ 49.420135] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.420136] CR2: 00007ffa1faeb000 CR3: 0000000f19abe000 CR4: 0000000000340ee0 [ 49.420137] Call Trace: [ 49.420150] xdr_buf_read_netobj+0x122/0x180 [sunrpc] [ 49.420154] ? kzfree+0x2d/0x40 [ 49.420158] ? crypto_destroy_tfm+0x73/0xb0 [ 49.420162] gss_unwrap_resp_integ.isra.11+0x9c/0x100 [auth_rpcgss] [ 49.420164] ? gss_unwrap_resp_integ.isra.11+0x9c/0x100 [auth_rpcgss] [ 49.420167] gss_unwrap_resp+0x13c/0x280 [auth_rpcgss] [ 49.420170] ? gss_unwrap_resp+0x13c/0x280 [auth_rpcgss] [ 49.420172] ? gss_validate+0x242/0x300 [auth_rpcgss] [ 49.420184] ? nfs4_xdr_dec_readdir+0x100/0x100 [nfsv4] [ 49.420194] rpcauth_unwrap_resp+0x67/0xe0 [sunrpc] [ 49.420204] ? nfs4_xdr_dec_readdir+0x100/0x100 [nfsv4] [ 49.420213] call_decode+0x1c4/0x880 [sunrpc] [ 49.420216] ? __switch_to_asm+0x35/0x70 [ 49.420224] ? rpc_check_timeout+0x130/0x130 [sunrpc] [ 49.420233] __rpc_execute+0x7a/0x3f0 [sunrpc] [ 49.420242] rpc_async_schedule+0x12/0x20 [sunrpc] [ 49.420245] process_one_work+0x1fd/0x400 [ 49.420247] worker_thread+0x34/0x410 [ 49.420249] kthread+0x121/0x140 [ 49.420250] ? process_one_work+0x400/0x400 [ 49.420252] ? kthread_park+0xb0/0xb0 [ 49.420254] ret_from_fork+0x22/0x40 [ 49.420255] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache edac_mce_amd snd_hda_codec_hdmi joydev kvm hid_roccat_koneplus hid_roccat irqbypass hid_roccat_common nvidia_uvm(OE) nvidia_drm(POE) nvidia_modeset(POE) snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_ca0132 snd_hda_intel snd_usb_audio snd_hda_codec snd_usbmidi_lib snd_hda_core crct10dif_pclmul snd_hwdep crc32_pclmul snd_seq_midi snd_pcm nvidia(POE) ghash_clmulni_intel snd_seq_midi_event eeepc_wmi aesni_intel snd_rawmidi asus_wmi sparse_keymap aes_x86_64 crypto_simd cryptd video glue_helper snd_seq drm_kms_helper snd_seq_device mxm_wmi wmi_bmof input_leds drm snd_timer ipmi_devintf snd serio_raw ccp ipmi_msghandler fb_sys_fops syscopyarea sysfillrect sysimgblt soundcore k10temp mac_hid sch_fq_codel asus_wmi_sensors(OE) parport_pc sunrpc ppdev lp parport ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c dm_mirror dm_region_hash dm_log hid_plantronics [ 49.420282] hid_generic usbhid hid igb i2c_piix4 nvme dca ahci i2c_algo_bit nvme_core libahci gpio_amdpt wmi gpio_generic [ 49.420293] ---[ end trace 75bda976d7f1c02d ]--- [ 49.420305] RIP: 0010:xdr_shrink_pagelen+0x9e/0xa0 [sunrpc] [ 49.420306] Code: 29 ea e8 85 f4 ff ff 44 8b 63 34 8b 43 3c 45 29 ec 44 29 e8 3b 43 40 44 89 63 34 89 43 3c 73 03 89 43 40 5b 41 5c 41 5d 5d c3 <0f> 0b 0f 1f 44 00 00 4c 8d 54 24 08 48 83 e4 f0 b9 04 00 00 00 41 [ 49.420307] RSP: 0018:ffffb93787be7b38 EFLAGS: 00010287 [ 49.420309] RAX: 000000000000000c RBX: 000000000000006c RCX: 000000000000001c [ 49.420310] RDX: 000000000000005c RSI: 0000000000000010 RDI: ffff8e1a87c56e50 [ 49.420311] RBP: ffffb93787be7b50 R08: ffff8e1b06999700 R09: 0000000000000000 [ 49.420312] R10: 00000000ffffffff R11: ffff8e1b0ecd1cd0 R12: ffff8e1a87c56e50 [ 49.420312] R13: ffffb93787be7c00 R14: 0000000000000058 R15: ffffffffc228e8c0 [ 49.420314] FS: 0000000000000000(0000) GS:ffff8e1b1ea00000(0000) knlGS:0000000000000000 [ 49.420315] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.420316] CR2: 00007ffa1faeb000 CR3: 0000000f19abe000 CR4: 0000000000340ee0 . [Jan 1 03:45] ------------[ cut here ]------------ [ +0,000002] kernel BUG at /build/linux-hwe-W9CF8Q/linux-hwe-5.0.0/net/sunrpc/xdr.c:434! [ +0,000006] invalid opcode: 0000 [#1] SMP NOPTI [ +0,000002] CPU: 4 PID: 28219 Comm: kworker/u64:2 Tainted: P OE 5.0.0-35-generic #38~18.04.1-Ubuntu [ +0,000001] Hardware name: System manufacturer System Product Name/ROG CROSSHAIR VII HERO (WI-FI), BIOS 3004 12/16/2019 [ +0,000011] Workqueue: rpciod rpc_async_schedule [sunrpc] [ +0,000010] RIP: 0010:xdr_shrink_pagelen+0x9e/0xa0 [sunrpc] [ +0,000001] Code: 29 ea e8 85 f4 ff ff 44 8b 63 34 8b 43 3c 45 29 ec 44 29 e8 3b 43 40 44 89 63 34 89 43 3c 73 03 89 43 40 5b 41 5c 41 5d 5d c3 <0f> 0b 0f 1f 44 00 00 4c 8d 54 24 08 48 83 e4 f0 b9 04 00 00 00 41 [ +0,000001] RSP: 0018:ffffa2dd18117b28 EFLAGS: 00010297 [ +0,000001] RAX: 0000000000000010 RBX: 0000000000000070 RCX: 000000000000001c [ +0,000001] RDX: 000000000000005c RSI: 0000000000000014 RDI: ffff8b96c0856650 [ +0,000001] RBP: ffffa2dd18117b40 R08: ffff8b97d1f82e00 R09: 0000000000000000 [ +0,000000] R10: 1d1cc51b00000000 R11: ffff8b97cf00e520 R12: ffff8b96c0856650 [ +0,000001] R13: ffffa2dd18117bf0 R14: 0000000000000058 R15: ffffffffc0eb8920 [ +0,000001] FS: 0000000000000000(0000) GS:ffff8b97de700000(0000) knlGS:0000000000000000 [ +0,000001] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ +0,000001] CR2: 0000191e985bac88 CR3: 0000000fd656c000 CR4: 0000000000340ee0 [ +0,000001] Call Trace: [ +0,000009] xdr_buf_read_netobj+0x122/0x180 [sunrpc] [ +0,000003] ? kzfree+0x2d/0x40 [ +0,000002] ? crypto_destroy_tfm+0x73/0xb0 [ +0,000003] gss_unwrap_resp_integ.isra.11+0x9c/0x100 [auth_rpcgss] [ +0,000002] ? gss_unwrap_resp_integ.isra.11+0x9c/0x100 [auth_rpcgss] [ +0,000002] gss_unwrap_resp+0x13c/0x280 [auth_rpcgss] [ +0,000002] ? kmem_cache_alloc_trace+0x42/0x1c0 [ +0,000002] ? gss_unwrap_resp+0x13c/0x280 [auth_rpcgss] [ +0,000002] ? gss_validate+0x242/0x300 [auth_rpcgss] [ +0,000008] ? nfs4_xdr_dec_readdir+0x100/0x100 [nfsv4] [ +0,000008] rpcauth_unwrap_resp+0x67/0xe0 [sunrpc] [ +0,000007] ? nfs4_xdr_dec_readdir+0x100/0x100 [nfsv4] [ +0,000007] call_decode+0x166/0x8b0 [sunrpc] [ +0,000002] ? __switch_to_asm+0x41/0x70 [ +0,000006] ? call_refreshresult+0x130/0x130 [sunrpc] [ +0,000006] __rpc_execute+0x7a/0x3f0 [sunrpc] [ +0,000007] rpc_async_schedule+0x12/0x20 [sunrpc] [ +0,000002] process_one_work+0x1fd/0x400 [ +0,000002] worker_thread+0x34/0x410 [ +0,000001] kthread+0x121/0x140 [ +0,000001] ? process_one_work+0x400/0x400 [ +0,000002] ? kthread_park+0xb0/0xb0 [ +0,000001] ret_from_fork+0x22/0x40 [ +0,000001] Modules linked in: nls_utf8 udf crc_itu_t rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache edac_mce_amd snd_hda_codec_hdmi kvm irqbypass joydev crct10dif_pclmul nvidia_uvm(OE) crc32_pclmul hid_roccat_koneplus nvidia_drm(POE) hid_roccat ghash_clmulni_intel hid_roccat_common nvidia_modeset(POE) nvidia(POE) snd_usb_audio snd_hda_codec_realtek snd_usbmidi_lib snd_hda_codec_generic ledtrig_audio snd_hda_codec_ca0132 aesni_intel input_leds snd_hda_intel eeepc_wmi snd_hda_codec asus_wmi aes_x86_64 drm_kms_helper crypto_simd snd_hda_core snd_seq_midi cryptd sparse_keymap snd_hwdep snd_seq_midi_event video glue_helper wmi_bmof mxm_wmi serio_raw drm snd_rawmidi snd_pcm ipmi_devintf ipmi_msghandler snd_seq fb_sys_fops syscopyarea sysfillrect snd_seq_device sysimgblt snd_timer k10temp ccp snd soundcore mac_hid sch_fq_codel asus_wmi_sensors(OE) parport_pc ppdev sunrpc lp parport ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c dm_mirror dm_region_hash dm_log [ +0,000019] hid_plantronics hid_generic usbhid hid igb i2c_piix4 dca i2c_algo_bit ahci nvme libahci nvme_core wmi gpio_amdpt gpio_generic [ +0,000008] ---[ end trace 4314523bc923f697 ]--- [ +0,000007] RIP: 0010:xdr_shrink_pagelen+0x9e/0xa0 [sunrpc] [ +0,000001] Code: 29 ea e8 85 f4 ff ff 44 8b 63 34 8b 43 3c 45 29 ec 44 29 e8 3b 43 40 44 89 63 34 89 43 3c 73 03 89 43 40 5b 41 5c 41 5d 5d c3 <0f> 0b 0f 1f 44 00 00 4c 8d 54 24 08 48 83 e4 f0 b9 04 00 00 00 41 [ +0,000001] RSP: 0018:ffffa2dd18117b28 EFLAGS: 00010297 [ +0,000001] RAX: 0000000000000010 RBX: 0000000000000070 RCX: 000000000000001c [ +0,000001] RDX: 000000000000005c RSI: 0000000000000014 RDI: ffff8b96c0856650 [ +0,000000] RBP: ffffa2dd18117b40 R08: ffff8b97d1f82e00 R09: 0000000000000000 [ +0,000001] R10: 1d1cc51b00000000 R11: ffff8b97cf00e520 R12: ffff8b96c0856650 [ +0,000001] R13: ffffa2dd18117bf0 R14: 0000000000000058 R15: ffffffffc0eb8920 [ +0,000001] FS: 0000000000000000(0000) GS:ffff8b97de700000(0000) knlGS:0000000000000000 [ +0,000001] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ +0,000000] CR2: 0000191e985bac88 CR3: 0000000fd656c000 CR4: 0000000000340ee0 . With a little compile-stress-test, I have tested the following kernels which seem to run fine: * 4.15.0-69 * 4.15.0-70 * 4.15.0-72 * 5.0.0-32 (current daily driver, runs without a hassle, max test length 2d 4h 33m - I am writing this bug report on it) But the following kernels do not run stable: * 5.0.0-35 (second stack-trace from above) * 5.0.0-37 (fist stack-trace from above, as you can see 49s after boot will already throw the error) * 5.3.0-24 $ lspci | grep -i ether 06:00.0 Ethernet controller: Intel Corporation I211 Gigabit Network Connection (rev 03 $ mount | grep filer filer:/ on /share type nfs4 (rw,noatime,vers=4.0,rsize=1048576,wsize=1048576,namlen=255,soft,proto=tcp,timeo=600,retrans=2,sec=krb5i,clientaddr=192.168.3.55,local_lock=none,addr=192.168.2.33) filer:/home/michael on /share/home/michael type nfs4 (rw,noatime,vers=4.0,rsize=1048576,wsize=1048576,namlen=255,soft,proto=tcp,timeo=600,retrans=2,sec=krb5i,clientaddr=192.168.3.55,local_lock=none,addr=192.168.2.33) $ cat /etc/fstab | grep -i filer filer:/ /share/ nfs4 nfsvers=4,sec=krb5i,rw,x-systemd.automount,soft,intr,tcp,noatime 0 0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1858832/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
