IMHO kernel version 5.4.0-40 should be deleted with the highest prejudice. Never before have I experienced 3 kernel panics in one day and a few after that. This thing should have never left Canonical quality control for an LTS system. And I have been running Ubuntu since the first release.
Jul 15 00:00:19 inzicht kernel: [21701.634416] ------------[ cut here ]------------ Jul 15 00:00:19 inzicht kernel: [21701.634421] percpu ref (cgroup_bpf_release_fn) <= 0 (-1) after switching to atomic Jul 15 00:00:19 inzicht kernel: [21701.634432] WARNING: CPU: 4 PID: 0 at lib/percpu-refcount.c:160 percpu_ref_switch_to_atomic_rcu+0x12e/0x140 Jul 15 00:00:19 inzicht kernel: [21701.634433] Modules linked in: unix_diag veth vhost_net vhost tap tcp_diag inet_diag xt_nat nf_conntrack_netlink xfrm_user xfrm_algo xt_addrtype br_netfilter aufs bluetooth ecdh_generic ecc xt_CHECKSUM xt_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp ip6table_mangle ip6table_nat iptable_mangle nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter rdma_ucm ib_uverbs overlay iptable_nat xt_MASQUERADE nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 bpfilter bridge stp llc binfmt_misc snd_hda_codec_hdmi xfs edac_mce_amd snd_hda_codec_realtek kvm_amd snd_hda_codec_generic ledtrig_audio kvm snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event nls_iso8859_1 input_leds snd_rawmidi snd_seq snd_seq_device crct10dif_pclmul snd_timer eeepc_wmi usblp asus_wmi ghash_clmulni_intel snd wmi_bmof sparse_keymap ccp k10temp soundcore mac_hid sch_fq_codel cuse ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi Jul 15 00:00:19 inzicht kernel: [21701.634460] scsi_transport_iscsi lm78 hwmon_vid parport_pc ppdev lp parport nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid0 multipath linear raid1 hid_generic usbhid hid nouveau mxm_wmi video crc32_pclmul i2c_algo_bit ttm aesni_intel drm_kms_helper glue_helper crypto_simd syscopyarea sysfillrect sysimgblt cryptd fb_sys_fops drm r8169 e1000e i2c_piix4 nvme ahci realtek nvme_core libahci wmi gpio_amdpt gpio_generic Jul 15 00:00:19 inzicht kernel: [21701.634480] CPU: 4 PID: 0 Comm: swapper/4 Not tainted 5.4.0-40-generic #44-Ubuntu Jul 15 00:00:19 inzicht kernel: [21701.634481] Hardware name: System manufacturer System Product Name/PRIME B450-PLUS, BIOS 2008 12/06/2019 Jul 15 00:00:19 inzicht kernel: [21701.634482] RIP: 0010:percpu_ref_switch_to_atomic_rcu+0x12e/0x140 Jul 15 00:00:19 inzicht kernel: [21701.634484] Code: 80 3d 17 43 2e 01 00 0f 85 57 ff ff ff 49 8b 54 24 d8 49 8b 74 24 e8 48 c7 c7 30 e8 5a b6 c6 05 f9 42 2e 01 01 e8 2d 7e b7 ff <0f> 0b e9 33 ff ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 Jul 15 00:00:19 inzicht kernel: [21701.634484] RSP: 0018:ffffaa5dc02fce70 EFLAGS: 00010282 Jul 15 00:00:19 inzicht kernel: [21701.634485] RAX: 0000000000000000 RBX: 7ffffffffffffffe RCX: 0000000000000000 Jul 15 00:00:19 inzicht kernel: [21701.634486] RDX: 0000000000000006 RSI: ffffffffb6d945e6 RDI: 0000000000000246 Jul 15 00:00:19 inzicht kernel: [21701.634486] RBP: ffffaa5dc02fce88 R08: ffffffffb6d945a0 R09: 0000000000000046 Jul 15 00:00:19 inzicht kernel: [21701.634487] R10: 0000000000000000 R11: 00000000b6d945ab R12: ffff8b661feb18e8 Jul 15 00:00:19 inzicht kernel: [21701.634487] R13: 00003ef75f603760 R14: ffff8b665acf2e80 R15: ffff8b665e92bad0 Jul 15 00:00:19 inzicht kernel: [21701.634488] FS: 0000000000000000(0000) GS:ffff8b665e900000(0000) knlGS:0000000000000000 Jul 15 00:00:19 inzicht kernel: [21701.634489] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jul 15 00:00:19 inzicht kernel: [21701.634489] CR2: 000055f9f5584de8 CR3: 00000007f0296000 CR4: 0000000000340ee0 Jul 15 00:00:19 inzicht kernel: [21701.634490] Call Trace: Jul 15 00:00:19 inzicht kernel: [21701.634491] <IRQ> Jul 15 00:00:19 inzicht kernel: [21701.634494] rcu_do_batch+0x12c/0x2b0 Jul 15 00:00:19 inzicht kernel: [21701.634496] rcu_core+0xf4/0x270 Jul 15 00:00:19 inzicht kernel: [21701.634497] rcu_core_si+0xe/0x10 Jul 15 00:00:19 inzicht kernel: [21701.634499] __do_softirq+0xe1/0x2d6 Jul 15 00:00:19 inzicht kernel: [21701.634500] ? hrtimer_interrupt+0x13b/0x220 Jul 15 00:00:19 inzicht kernel: [21701.634502] irq_exit+0xae/0xb0 Jul 15 00:00:19 inzicht kernel: [21701.634503] smp_apic_timer_interrupt+0x7b/0x140 Jul 15 00:00:19 inzicht kernel: [21701.634505] apic_timer_interrupt+0xf/0x20 Jul 15 00:00:19 inzicht kernel: [21701.634505] </IRQ> Jul 15 00:00:19 inzicht kernel: [21701.634507] RIP: 0010:cpuidle_enter_state+0xc5/0x450 Jul 15 00:00:19 inzicht kernel: [21701.634508] Code: ff e8 cf 08 81 ff 80 7d c7 00 74 17 9c 58 0f 1f 44 00 00 f6 c4 02 0f 85 65 03 00 00 31 ff e8 22 6c 87 ff fb 66 0f 1f 44 00 00 <45> 85 ed 0f 88 8f 02 00 00 49 63 cd 4c 8b 7d d0 4c 2b 7d c8 48 8d Jul 15 00:00:19 inzicht kernel: [21701.634508] RSP: 0018:ffffaa5dc014fe38 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 Jul 15 00:00:19 inzicht kernel: [21701.634509] RAX: ffff8b665e92ad00 RBX: ffffffffb6968fe0 RCX: 000000000000001f Jul 15 00:00:19 inzicht kernel: [21701.634510] RDX: 0000000000000000 RSI: 000000001e79f0a7 RDI: 0000000000000000 Jul 15 00:00:19 inzicht kernel: [21701.634510] RBP: ffffaa5dc014fe78 R08: 000013bcce35665a R09: 000000000000007c Jul 15 00:00:19 inzicht kernel: [21701.634511] R10: ffff8b665e929a00 R11: ffff8b665e9299e0 R12: ffff8b6626ab4c00 Jul 15 00:00:19 inzicht kernel: [21701.634511] R13: 0000000000000001 R14: 0000000000000001 R15: ffff8b6626ab4c00 Jul 15 00:00:19 inzicht kernel: [21701.634513] ? cpuidle_enter_state+0xa1/0x450 Jul 15 00:00:19 inzicht kernel: [21701.634514] cpuidle_enter+0x2e/0x40 Jul 15 00:00:19 inzicht kernel: [21701.634515] call_cpuidle+0x23/0x40 Jul 15 00:00:19 inzicht kernel: [21701.634516] do_idle+0x1dd/0x270 Jul 15 00:00:19 inzicht kernel: [21701.634518] cpu_startup_entry+0x20/0x30 Jul 15 00:00:19 inzicht kernel: [21701.634519] start_secondary+0x167/0x1c0 Jul 15 00:00:19 inzicht kernel: [21701.634521] secondary_startup_64+0xa4/0xb0 Jul 15 00:00:19 inzicht kernel: [21701.634522] ---[ end trace 6037fe13aad2c092 ]--- Jul 15 12:39:43 inzicht kernel: [ 3563.879431] ------------[ cut here ]------------ Jul 15 12:39:43 inzicht kernel: [ 3563.879436] percpu ref (cgroup_bpf_release_fn) <= 0 (-5) after switching to atomic Jul 15 12:39:43 inzicht kernel: [ 3563.879446] WARNING: CPU: 10 PID: 0 at lib/percpu-refcount.c:160 percpu_ref_switch_to_atomic_rcu+0x12e/0x140 Jul 15 12:39:43 inzicht kernel: [ 3563.879446] Modules linked in: unix_diag tcp_diag inet_diag vhost_net vhost tap veth xt_nat nf_conntrack_netlink xfrm_user xfrm_algo xt_addrtype br_netfilter aufs xt_CHECKSUM xt_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp ip6table_mangle ip6table_nat iptable_mangle nf_tables ip6table_filter ip6_tables iptable_filter nfnetlink bluetooth ecdh_generic ecc rdma_ucm ib_uverbs overlay iptable_nat xt_MASQUERADE nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 bpfilter bridge stp llc binfmt_misc snd_hda_codec_hdmi xfs snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep snd_pcm nls_iso8859_1 snd_seq_midi snd_seq_midi_event edac_mce_amd kvm_amd kvm snd_rawmidi input_leds snd_seq snd_seq_device snd_timer crct10dif_pclmul snd usblp eeepc_wmi asus_wmi ghash_clmulni_intel sparse_keymap wmi_bmof k10temp ccp soundcore mac_hid sch_fq_codel cuse ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi Jul 15 12:39:43 inzicht kernel: [ 3563.879469] scsi_transport_iscsi lm78 hwmon_vid parport_pc ppdev lp parport nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid0 multipath linear raid1 hid_generic usbhid uas hid usb_storage crc32_pclmul nouveau mxm_wmi video i2c_algo_bit ttm drm_kms_helper aesni_intel syscopyarea sysfillrect glue_helper sysimgblt crypto_simd fb_sys_fops cryptd drm nvme e1000e i2c_piix4 r8169 realtek ahci nvme_core libahci wmi gpio_amdpt gpio_generic Jul 15 12:39:43 inzicht kernel: [ 3563.879487] CPU: 10 PID: 0 Comm: swapper/10 Not tainted 5.4.0-40-generic #44-Ubuntu Jul 15 12:39:43 inzicht kernel: [ 3563.879487] Hardware name: System manufacturer System Product Name/PRIME B450-PLUS, BIOS 2008 12/06/2019 Jul 15 12:39:43 inzicht kernel: [ 3563.879489] RIP: 0010:percpu_ref_switch_to_atomic_rcu+0x12e/0x140 Jul 15 12:39:43 inzicht kernel: [ 3563.879490] Code: 80 3d 17 43 2e 01 00 0f 85 57 ff ff ff 49 8b 54 24 d8 49 8b 74 24 e8 48 c7 c7 30 e8 9a 9f c6 05 f9 42 2e 01 01 e8 2d 7e b7 ff <0f> 0b e9 33 ff ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 Jul 15 12:39:43 inzicht kernel: [ 3563.879490] RSP: 0018:ffffbb1a80434e70 EFLAGS: 00010282 Jul 15 12:39:43 inzicht kernel: [ 3563.879491] RAX: 0000000000000000 RBX: 7ffffffffffffffa RCX: 0000000000000000 Jul 15 12:39:43 inzicht kernel: [ 3563.879491] RDX: 0000000000000006 RSI: ffffffffa01945e6 RDI: 0000000000000246 Jul 15 12:39:43 inzicht kernel: [ 3563.879491] RBP: ffffbb1a80434e88 R08: ffffffffa01945a0 R09: 0000000000000046 Jul 15 12:39:43 inzicht kernel: [ 3563.879492] R10: 0000000000000000 R11: 00000000a01945ab R12: ffff9d6e6b67a8e8 Jul 15 12:39:43 inzicht kernel: [ 3563.879492] R13: 00003dabff60c808 R14: ffff9d6e7ad42e80 R15: ffff9d6e7eaabad0 Jul 15 12:39:43 inzicht kernel: [ 3563.879493] FS: 0000000000000000(0000) GS:ffff9d6e7ea80000(0000) knlGS:0000000000000000 Jul 15 12:39:43 inzicht kernel: [ 3563.879493] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jul 15 12:39:43 inzicht kernel: [ 3563.879494] CR2: 0000560428497048 CR3: 00000006e7678000 CR4: 0000000000340ee0 Jul 15 12:39:43 inzicht kernel: [ 3563.879494] Call Trace: Jul 15 12:39:43 inzicht kernel: [ 3563.879495] <IRQ> Jul 15 12:39:43 inzicht kernel: [ 3563.879498] rcu_do_batch+0x12c/0x2b0 Jul 15 12:39:43 inzicht kernel: [ 3563.879500] rcu_core+0xf4/0x270 Jul 15 12:39:43 inzicht kernel: [ 3563.879500] rcu_core_si+0xe/0x10 Jul 15 12:39:43 inzicht kernel: [ 3563.879502] __do_softirq+0xe1/0x2d6 Jul 15 12:39:43 inzicht kernel: [ 3563.879503] ? hrtimer_interrupt+0x13b/0x220 Jul 15 12:39:43 inzicht kernel: [ 3563.879505] irq_exit+0xae/0xb0 Jul 15 12:39:43 inzicht kernel: [ 3563.879506] smp_apic_timer_interrupt+0x7b/0x140 Jul 15 12:39:43 inzicht kernel: [ 3563.879507] apic_timer_interrupt+0xf/0x20 Jul 15 12:39:43 inzicht kernel: [ 3563.879507] </IRQ> Jul 15 12:39:43 inzicht kernel: [ 3563.879509] RIP: 0010:cpuidle_enter_state+0xc5/0x450 Jul 15 12:39:43 inzicht kernel: [ 3563.879510] Code: ff e8 cf 08 81 ff 80 7d c7 00 74 17 9c 58 0f 1f 44 00 00 f6 c4 02 0f 85 65 03 00 00 31 ff e8 22 6c 87 ff fb 66 0f 1f 44 00 00 <45> 85 ed 0f 88 8f 02 00 00 49 63 cd 4c 8b 7d d0 4c 2b 7d c8 48 8d Jul 15 12:39:43 inzicht kernel: [ 3563.879510] RSP: 0018:ffffbb1a8017fe38 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 Jul 15 12:39:43 inzicht kernel: [ 3563.879511] RAX: ffff9d6e7eaaad00 RBX: ffffffff9fd68fe0 RCX: 000000000000001f Jul 15 12:39:43 inzicht kernel: [ 3563.879511] RDX: 0000000000000000 RSI: 000000001e79e818 RDI: 0000000000000000 Jul 15 12:39:43 inzicht kernel: [ 3563.879511] RBP: ffffbb1a8017fe78 R08: 0000033dc7c45100 R09: 0000000000000c31 Jul 15 12:39:43 inzicht kernel: [ 3563.879512] R10: ffff9d6e7eaa9a00 R11: ffff9d6e7eaa99e0 R12: ffff9d6e68808000 Jul 15 12:39:43 inzicht kernel: [ 3563.879512] R13: 0000000000000002 R14: 0000000000000002 R15: ffff9d6e68808000 Jul 15 12:39:43 inzicht kernel: [ 3563.879513] ? cpuidle_enter_state+0xa1/0x450 Jul 15 12:39:43 inzicht kernel: [ 3563.879514] cpuidle_enter+0x2e/0x40 Jul 15 12:39:43 inzicht kernel: [ 3563.879515] call_cpuidle+0x23/0x40 Jul 15 12:39:43 inzicht kernel: [ 3563.879516] do_idle+0x1dd/0x270 Jul 15 12:39:43 inzicht kernel: [ 3563.879516] cpu_startup_entry+0x20/0x30 Jul 15 12:39:43 inzicht kernel: [ 3563.879518] start_secondary+0x167/0x1c0 Jul 15 12:39:43 inzicht kernel: [ 3563.879519] secondary_startup_64+0xa4/0xb0 Jul 15 12:39:43 inzicht kernel: [ 3563.879520] ---[ end trace ea9047ccaeb37bb5 ]--- Jul 15 20:42:00 inzicht kernel: [ 938.663597] ------------[ cut here ]------------ Jul 15 20:42:00 inzicht kernel: [ 938.663603] percpu ref (cgroup_bpf_release_fn) <= 0 (0) after switching to atomic Jul 15 20:42:00 inzicht kernel: [ 938.663615] WARNING: CPU: 10 PID: 0 at lib/percpu-refcount.c:160 percpu_ref_switch_to_atomic_rcu+0x12e/0x140 Jul 15 20:42:00 inzicht kernel: [ 938.663616] Modules linked in: unix_diag vhost_net vhost tap tcp_diag inet_diag veth xt_nat nf_conntrack_netlink xfrm_user xfrm_algo xt_addrtype br_netfilter aufs xt_CHECKSUM xt_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp ip6table_mangle ip6table_nat iptable_mangle nf_tables ip6table_filter ip6_tables iptable_filter nfnetlink bluetooth ecdh_generic ecc rdma_ucm ib_uverbs overlay iptable_nat xt_MASQUERADE nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 bpfilter bridge stp llc binfmt_misc snd_hda_codec_hdmi xfs snd_hda_codec_realtek edac_mce_amd snd_hda_codec_generic ledtrig_audio kvm_amd kvm snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_usb_audio snd_hda_core snd_usbmidi_lib snd_hwdep nls_iso8859_1 snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq gspca_vc032x uvcvideo gspca_main videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common snd_seq_device snd_timer videodev input_leds crct10dif_pclmul eeepc_wmi mc usblp asus_wmi ghash_clmulni_intel sparse_keymap Jul 15 20:42:00 inzicht kernel: [ 938.663639] wmi_bmof k10temp snd ccp soundcore mac_hid sch_fq_codel cuse ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi lm78 hwmon_vid parport_pc ppdev lp parport nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid0 multipath linear raid1 hid_generic usbhid hid nouveau crc32_pclmul mxm_wmi video i2c_algo_bit ttm drm_kms_helper syscopyarea aesni_intel sysfillrect sysimgblt glue_helper crypto_simd fb_sys_fops cryptd e1000e drm i2c_piix4 r8169 nvme ahci realtek nvme_core libahci wmi gpio_amdpt gpio_generic Jul 15 20:42:00 inzicht kernel: [ 938.663662] CPU: 10 PID: 0 Comm: swapper/10 Not tainted 5.4.0-40-generic #44-Ubuntu Jul 15 20:42:00 inzicht kernel: [ 938.663662] Hardware name: System manufacturer System Product Name/PRIME B450-PLUS, BIOS 2008 12/06/2019 Jul 15 20:42:00 inzicht kernel: [ 938.663663] RIP: 0010:percpu_ref_switch_to_atomic_rcu+0x12e/0x140 Jul 15 20:42:00 inzicht kernel: [ 938.663664] Code: 80 3d 17 43 2e 01 00 0f 85 57 ff ff ff 49 8b 54 24 d8 49 8b 74 24 e8 48 c7 c7 30 e8 5a a5 c6 05 f9 42 2e 01 01 e8 2d 7e b7 ff <0f> 0b e9 33 ff ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 Jul 15 20:42:00 inzicht kernel: [ 938.663665] RSP: 0018:ffff9ad080434e70 EFLAGS: 00010282 Jul 15 20:42:00 inzicht kernel: [ 938.663665] RAX: 0000000000000000 RBX: 7fffffffffffffff RCX: 0000000000000000 Jul 15 20:42:00 inzicht kernel: [ 938.663666] RDX: 0000000000000005 RSI: ffffffffa5d945e5 RDI: 0000000000000246 Jul 15 20:42:00 inzicht kernel: [ 938.663666] RBP: ffff9ad080434e88 R08: ffffffffa5d945a0 R09: 0000000000000045 Jul 15 20:42:00 inzicht kernel: [ 938.663667] R10: 0000000000000000 R11: 00000000a5d945ab R12: ffff8e44218b78e8 Jul 15 20:42:00 inzicht kernel: [ 938.663667] R13: 00002c8c3f60e328 R14: ffff8e443ad45d00 R15: ffff8e443eaabad0 Jul 15 20:42:00 inzicht kernel: [ 938.663668] FS: 0000000000000000(0000) GS:ffff8e443ea80000(0000) knlGS:0000000000000000 Jul 15 20:42:00 inzicht kernel: [ 938.663668] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jul 15 20:42:00 inzicht kernel: [ 938.663669] CR2: 0000560dd3968ba8 CR3: 00000005c7a74000 CR4: 0000000000340ee0 Jul 15 20:42:00 inzicht kernel: [ 938.663669] Call Trace: Jul 15 20:42:00 inzicht kernel: [ 938.663670] <IRQ> Jul 15 20:42:00 inzicht kernel: [ 938.663673] rcu_do_batch+0x12c/0x2b0 Jul 15 20:42:00 inzicht kernel: [ 938.663674] rcu_core+0xf4/0x270 Jul 15 20:42:00 inzicht kernel: [ 938.663675] rcu_core_si+0xe/0x10 Jul 15 20:42:00 inzicht kernel: [ 938.663677] __do_softirq+0xe1/0x2d6 Jul 15 20:42:00 inzicht kernel: [ 938.663678] ? hrtimer_interrupt+0x13b/0x220 Jul 15 20:42:00 inzicht kernel: [ 938.663680] irq_exit+0xae/0xb0 Jul 15 20:42:00 inzicht kernel: [ 938.663680] smp_apic_timer_interrupt+0x7b/0x140 Jul 15 20:42:00 inzicht kernel: [ 938.663682] apic_timer_interrupt+0xf/0x20 Jul 15 20:42:00 inzicht kernel: [ 938.663682] </IRQ> Jul 15 20:42:00 inzicht kernel: [ 938.663684] RIP: 0010:cpuidle_enter_state+0xc5/0x450 Jul 15 20:42:00 inzicht kernel: [ 938.663684] Code: ff e8 cf 08 81 ff 80 7d c7 00 74 17 9c 58 0f 1f 44 00 00 f6 c4 02 0f 85 65 03 00 00 31 ff e8 22 6c 87 ff fb 66 0f 1f 44 00 00 <45> 85 ed 0f 88 8f 02 00 00 49 63 cd 4c 8b 7d d0 4c 2b 7d c8 48 8d Jul 15 20:42:00 inzicht kernel: [ 938.663684] RSP: 0018:ffff9ad08017fe38 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 Jul 15 20:42:00 inzicht kernel: [ 938.663685] RAX: ffff8e443eaaad00 RBX: ffffffffa5968fe0 RCX: 000000000000001f Jul 15 20:42:00 inzicht kernel: [ 938.663685] RDX: 0000000000000000 RSI: 000000001e79e724 RDI: 0000000000000000 Jul 15 20:42:00 inzicht kernel: [ 938.663686] RBP: ffff9ad08017fe78 R08: 000000da8cb59aec R09: 0000000000000e04 Jul 15 20:42:00 inzicht kernel: [ 938.663686] R10: ffff8e443eaa9a00 R11: ffff8e443eaa99e0 R12: ffff8e4428f58800 Jul 15 20:42:00 inzicht kernel: [ 938.663686] R13: 0000000000000002 R14: 0000000000000002 R15: ffff8e4428f58800 Jul 15 20:42:00 inzicht kernel: [ 938.663688] ? cpuidle_enter_state+0xa1/0x450 Jul 15 20:42:00 inzicht kernel: [ 938.663688] cpuidle_enter+0x2e/0x40 Jul 15 20:42:00 inzicht kernel: [ 938.663690] call_cpuidle+0x23/0x40 Jul 15 20:42:00 inzicht kernel: [ 938.663691] do_idle+0x1dd/0x270 Jul 15 20:42:00 inzicht kernel: [ 938.663692] cpu_startup_entry+0x20/0x30 Jul 15 20:42:00 inzicht kernel: [ 938.663693] start_secondary+0x167/0x1c0 Jul 15 20:42:00 inzicht kernel: [ 938.663694] secondary_startup_64+0xa4/0xb0 Jul 15 20:42:00 inzicht kernel: [ 938.663695] ---[ end trace 5b75acb5b65e41e2 ]--- Jul 29 00:00:18 inzicht kernel: [16071.979791] ------------[ cut here ]------------ Jul 29 00:00:18 inzicht kernel: [16071.979795] percpu ref (cgroup_bpf_release_fn) <= 0 (-1) after switching to atomic Jul 29 00:00:18 inzicht kernel: [16071.979804] WARNING: CPU: 13 PID: 90 at lib/percpu-refcount.c:160 percpu_ref_switch_to_atomic_rcu+0x12e/0x140 Jul 29 00:00:18 inzicht kernel: [16071.979804] Modules linked in: tcp_diag inet_diag unix_diag veth vhost_net vhost tap xt_nat nf_conntrack_netlink xfrm_user xfrm_algo xt_addrtype br_netfilter xt_CHECKSUM xt_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp ip6table_mangle ip6table_nat iptable_mangle nf_tables ip6table_filter ip6_tables iptable_filter aufs nfnetlink bluetooth ecdh_generic ecc rdma_ucm ib_uverbs overlay iptable_nat xt_MASQUERADE nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 bpfilter bridge stp llc binfmt_misc snd_hda_codec_hdmi xfs snd_hda_codec_realtek snd_hda_codec_generic nls_iso8859_1 ledtrig_audio edac_mce_amd kvm_amd kvm snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi input_leds snd_seq snd_seq_device snd_timer crct10dif_pclmul eeepc_wmi asus_wmi ghash_clmulni_intel sparse_keymap snd wmi_bmof k10temp soundcore ccp mac_hid sch_fq_codel cuse ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi lm78 Jul 29 00:00:18 inzicht kernel: [16071.979827] hwmon_vid parport_pc ppdev lp parport nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid0 multipath linear raid1 hid_generic usbhid hid nouveau mxm_wmi video i2c_algo_bit crc32_pclmul ttm aesni_intel drm_kms_helper glue_helper syscopyarea crypto_simd sysfillrect sysimgblt fb_sys_fops cryptd drm e1000e r8169 i2c_piix4 nvme realtek ahci nvme_core libahci wmi gpio_amdpt gpio_generic Jul 29 00:00:18 inzicht kernel: [16071.979844] CPU: 13 PID: 90 Comm: ksoftirqd/13 Not tainted 5.4.0-40-generic #44-Ubuntu Jul 29 00:00:18 inzicht kernel: [16071.979845] Hardware name: System manufacturer System Product Name/PRIME B450-PLUS, BIOS 2008 12/06/2019 Jul 29 00:00:18 inzicht kernel: [16071.979846] RIP: 0010:percpu_ref_switch_to_atomic_rcu+0x12e/0x140 Jul 29 00:00:18 inzicht kernel: [16071.979847] Code: 80 3d 17 43 2e 01 00 0f 85 57 ff ff ff 49 8b 54 24 d8 49 8b 74 24 e8 48 c7 c7 30 e8 5a 98 c6 05 f9 42 2e 01 01 e8 2d 7e b7 ff <0f> 0b e9 33 ff ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 Jul 29 00:00:18 inzicht kernel: [16071.979847] RSP: 0018:ffff9ac0804bbd78 EFLAGS: 00010286 Jul 29 00:00:18 inzicht kernel: [16071.979848] RAX: 0000000000000000 RBX: 7ffffffffffffffe RCX: 0000000000000000 Jul 29 00:00:18 inzicht kernel: [16071.979849] RDX: 0000000000000006 RSI: ffffffff98d945e6 RDI: 0000000000000246 Jul 29 00:00:18 inzicht kernel: [16071.979849] RBP: ffff9ac0804bbd90 R08: ffffffff98d945a0 R09: 0000000000000046 Jul 29 00:00:18 inzicht kernel: [16071.979849] R10: 0000000000000000 R11: 0000000098d945ab R12: ffff8ea7c787e8e8 Jul 29 00:00:18 inzicht kernel: [16071.979850] R13: 00002c187fe3f1e8 R14: ffff8ea7fa8e8000 R15: ffff8ea7feb6bad0 Jul 29 00:00:18 inzicht kernel: [16071.979850] FS: 0000000000000000(0000) GS:ffff8ea7feb40000(0000) knlGS:0000000000000000 Jul 29 00:00:18 inzicht kernel: [16071.979851] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jul 29 00:00:18 inzicht kernel: [16071.979851] CR2: 000055741a50aae0 CR3: 00000007f93b0000 CR4: 0000000000340ee0 Jul 29 00:00:18 inzicht kernel: [16071.979852] Call Trace: Jul 29 00:00:18 inzicht kernel: [16071.979856] rcu_do_batch+0x12c/0x2b0 Jul 29 00:00:18 inzicht kernel: [16071.979857] rcu_core+0xf4/0x270 Jul 29 00:00:18 inzicht kernel: [16071.979858] rcu_core_si+0xe/0x10 Jul 29 00:00:18 inzicht kernel: [16071.979859] __do_softirq+0xe1/0x2d6 Jul 29 00:00:18 inzicht kernel: [16071.979861] run_ksoftirqd+0x2b/0x40 Jul 29 00:00:18 inzicht kernel: [16071.979863] smpboot_thread_fn+0xd0/0x170 Jul 29 00:00:18 inzicht kernel: [16071.979864] kthread+0x104/0x140 Jul 29 00:00:18 inzicht kernel: [16071.979865] ? sort_range+0x30/0x30 Jul 29 00:00:18 inzicht kernel: [16071.979865] ? kthread_park+0x90/0x90 Jul 29 00:00:18 inzicht kernel: [16071.979866] ret_from_fork+0x22/0x40 Jul 29 00:00:18 inzicht kernel: [16071.979867] ---[ end trace d6ff7b46434d5d38 ]--- -- 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/1888090 Title: Frequent Kernel panic in 5.4.0-40 but not 5.4.0-29 on Gemini Lake cpu and r8169r Status in linux package in Ubuntu: Incomplete Bug description: Crashes occur more frequently with heavy network traffic and can happen every 5 minutes to 24+ hours. Stacktrace usually involves TCP. Same behavior on two new motherboards (Asrock J4105M and Asrock J5005-ITX) with different RAM type and brand. All other peripherals removed and changed PSU (still crashed). Enabled kdump and got a dozen dumps, will attach some. Went from 5.4.0-40 to 5.4.0-29 and no crashes at all. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-40-generic 5.4.0-40.44 ProcVersionSignature: Ubuntu 5.4.0-40.44-generic 5.4.44 Uname: Linux 5.4.0-40-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: akom 2403 F.... pulseaudio CasperMD5CheckResult: pass Date: Sat Jul 18 17:28:40 2020 InstallationDate: Installed on 2020-07-04 (14 days ago) InstallationMedia: Ubuntu-Server 20.04 LTS "Focal Fossa" - Release amd64 (20200423) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 0781:5571 SanDisk Corp. Cruzer Fit Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Lsusb-t: /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/7p, 5000M /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/9p, 480M |__ Port 2: Dev 2, If 0, Class=Mass Storage, Driver=usb-storage, 480M MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcEnviron: TERM=screen PATH=(custom, no user) LANG=C.UTF-8 SHELL=/bin/bash ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-40-generic root=UUID=2ef70f32-e7d2-4fed-992a-6a236076a72f ro crashkernel=512M-:512M PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-5.4.0-40-generic N/A linux-backports-modules-5.4.0-40-generic N/A linux-firmware 1.187.1 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/06/2018 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P1.40 dmi.board.name: J5005-ITX dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.40:bd08/06/2018:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnJ5005-ITX:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.family: To Be Filled By O.E.M. dmi.product.name: To Be Filled By O.E.M. dmi.product.sku: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1888090/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
