apport information ** Attachment added: "Lspci-vt.txt" https://bugs.launchpad.net/bugs/1937946/+attachment/5519136/+files/Lspci-vt.txt
-- 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/1937946 Title: Kernel hangs Status in linux package in Ubuntu: Incomplete Bug description: tim@timpc:~/Dokumente/nbased-gui$ lsb_release -rd Description: Ubuntu 20.04.2 LTS Release: 20.04 This is probably the relevant part from /var/log/kern.log Jul 25 16:34:24 timpc kernel: [16627.134024] BUG: kernel NULL pointer dereference, address: 0000000000000000 Jul 25 16:34:24 timpc kernel: [16627.134028] #PF: supervisor write access in kernel mode Jul 25 16:34:24 timpc kernel: [16627.134030] #PF: error_code(0x0002) - not-present page Jul 25 16:34:24 timpc kernel: [16627.134031] PGD 0 P4D 0 Jul 25 16:34:24 timpc kernel: [16627.134035] Oops: 0002 [#1] SMP NOPTI Jul 25 16:34:24 timpc kernel: [16627.134038] CPU: 4 PID: 3506 Comm: Timer Tainted: G OE 5.4.0-80-generic #90-Ubuntu Jul 25 16:34:24 timpc kernel: [16627.134040] Hardware name: Gigabyte Technology Co., Ltd. B450 AORUS PRO/B450 AORUS PRO-CF, BIOS F2 08/08/2018 Jul 25 16:34:24 timpc kernel: [16627.134046] RIP: 0010:rb_erase+0x241/0x370 Jul 25 16:34:24 timpc kernel: [16627.134049] Code: 3b 79 10 0f 84 94 00 00 00 4c 89 41 08 4d 85 c0 75 4c a8 01 0f 85 72 fe ff ff c3 48 89 cf 48 89 51 10 48 83 cf 01 48 89 48 08 <48> 89 3a 48 8b 39 48 89 38 48 89 01 48 83 e7 fc 74 6a 48 3b 4f 10 Jul 25 16:34:24 timpc kernel: [16627.134051] RSP: 0018:ffff9b6008727c60 EFLAGS: 00010086 Jul 25 16:34:24 timpc kernel: [16627.134053] RAX: ffff8fc2bee1e4a0 RBX: ffff9b6008727d30 RCX: ffff9b6008277db0 Jul 25 16:34:24 timpc kernel: [16627.134054] RDX: 0000000000000000 RSI: ffff8fc2bee1dfe0 RDI: ffff9b6008277db1 Jul 25 16:34:24 timpc kernel: [16627.134056] RBP: ffff9b6008727c78 R08: 0000000000000000 R09: 0000000000000000 Jul 25 16:34:24 timpc kernel: [16627.134057] R10: ffff8fc2bed29ac0 R11: ffff8fc2bed29aa0 R12: ffff8fc2bee1dfe0 Jul 25 16:34:24 timpc kernel: [16627.134058] R13: 0000000000000000 R14: ffff8fc2bee1df80 R15: 0000000000000000 Jul 25 16:34:24 timpc kernel: [16627.134060] FS: 00007f082ae56700(0000) GS:ffff8fc2bed00000(0000) knlGS:0000000000000000 Jul 25 16:34:24 timpc kernel: [16627.134061] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jul 25 16:34:24 timpc kernel: [16627.134063] CR2: 0000000000000000 CR3: 0000000738206000 CR4: 00000000003406e0 Jul 25 16:34:24 timpc kernel: [16627.134064] Call Trace: Jul 25 16:34:24 timpc kernel: [16627.134067] ? timerqueue_del+0x24/0x50 Jul 25 16:34:24 timpc kernel: [16627.134073] __remove_hrtimer+0x3c/0x90 Jul 25 16:34:24 timpc kernel: [16627.134076] hrtimer_try_to_cancel+0xb7/0x110 Jul 25 16:34:24 timpc kernel: [16627.134078] hrtimer_cancel+0x15/0x20 Jul 25 16:34:24 timpc kernel: [16627.134082] futex_wait+0x21b/0x290 Jul 25 16:34:24 timpc kernel: [16627.134085] ? hrtimer_init_sleeper+0x90/0x90 Jul 25 16:34:24 timpc kernel: [16627.134088] do_futex+0x157/0x4d0 Jul 25 16:34:24 timpc kernel: [16627.134092] ? _copy_from_user+0x3e/0x60 Jul 25 16:34:24 timpc kernel: [16627.134095] __x64_sys_futex+0x13f/0x170 Jul 25 16:34:24 timpc kernel: [16627.134099] do_syscall_64+0x57/0x190 Jul 25 16:34:24 timpc kernel: [16627.134102] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Jul 25 16:34:24 timpc kernel: [16627.134105] RIP: 0033:0x7f083c67d7b1 Jul 25 16:34:24 timpc kernel: [16627.134107] Code: 01 00 00 e8 51 38 00 00 4c 8b 54 24 18 8b 74 24 40 31 d2 89 44 24 44 41 b9 ff ff ff ff 45 31 c0 4c 89 f7 b8 ca 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 73 01 00 00 8b 7c 24 44 e8 7a 38 00 00 31 Jul 25 16:34:24 timpc kernel: [16627.134109] RSP: 002b:00007f082ae55980 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca Jul 25 16:34:24 timpc kernel: [16627.134111] RAX: ffffffffffffffda RBX: 00007f0830636e48 RCX: 00007f083c67d7b1 Jul 25 16:34:24 timpc kernel: [16627.134112] RDX: 0000000000000000 RSI: 0000000000000089 RDI: 00007f0830636e60 Jul 25 16:34:24 timpc kernel: [16627.134113] RBP: 00007f0830636e38 R08: 0000000000000000 R09: 00000000ffffffff Jul 25 16:34:24 timpc kernel: [16627.134114] R10: 00007f082ae55a68 R11: 0000000000000246 R12: 00007f0830636e5c Jul 25 16:34:24 timpc kernel: [16627.134115] R13: 00007f0830636e08 R14: 00007f0830636e60 R15: 00007f082ae559d0 Jul 25 16:34:24 timpc kernel: [16627.134117] Modules linked in: vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) ccm edac_mce_amd kvm_amd xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp ip6table_mangle ip6table_nat iptable_mangle iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter bpfilter bridge stp llc binfmt_misc nls_iso8859_1 rtl8xxxu snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi rtl8192cu snd_hda_intel rtl_usb snd_intel_dspcfg rtl8192c_common snd_hda_codec rtlwifi snd_hda_core mac80211 snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event cfg80211 joydev snd_rawmidi input_leds radeon kvm crct10dif_pclmul ghash_clmulni_intel aesni_intel snd_seq libarc4 ttm crypto_simd snd_seq_device cryptd glue_helper snd_timer drm_kms_helper fb_sys_fops syscopyarea sysfillrect k10temp snd sysimgblt wmi_bmof soundcore ccp mac_hid sch_fq_codel parport_pc ppdev lp drm parport ip_tables x_tables autofs4 btrfs Jul 25 16:34:24 timpc kernel: [16627.134158] zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_generic usbhid hid crc32_pclmul igb nvme i2c_piix4 nvme_core ahci i2c_algo_bit dca libahci wmi gpio_amdpt gpio_generic Jul 25 16:34:24 timpc kernel: [16627.134174] CR2: 0000000000000000 Jul 25 16:34:24 timpc kernel: [16627.134177] ---[ end trace fee3044dbf2069d3 ]--- Jul 25 16:34:24 timpc kernel: [16627.134180] RIP: 0010:rb_erase+0x241/0x370 Jul 25 16:34:24 timpc kernel: [16627.134182] Code: 3b 79 10 0f 84 94 00 00 00 4c 89 41 08 4d 85 c0 75 4c a8 01 0f 85 72 fe ff ff c3 48 89 cf 48 89 51 10 48 83 cf 01 48 89 48 08 <48> 89 3a 48 8b 39 48 89 38 48 89 01 48 83 e7 fc 74 6a 48 3b 4f 10 Jul 25 16:34:24 timpc kernel: [16627.134183] RSP: 0018:ffff9b6008727c60 EFLAGS: 00010086 Jul 25 16:34:24 timpc kernel: [16627.134185] RAX: ffff8fc2bee1e4a0 RBX: ffff9b6008727d30 RCX: ffff9b6008277db0 Jul 25 16:34:24 timpc kernel: [16627.134186] RDX: 0000000000000000 RSI: ffff8fc2bee1dfe0 RDI: ffff9b6008277db1 Jul 25 16:34:24 timpc kernel: [16627.134187] RBP: ffff9b6008727c78 R08: 0000000000000000 R09: 0000000000000000 Jul 25 16:34:24 timpc kernel: [16627.134188] R10: ffff8fc2bed29ac0 R11: ffff8fc2bed29aa0 R12: ffff8fc2bee1dfe0 Jul 25 16:34:24 timpc kernel: [16627.134189] R13: 0000000000000000 R14: ffff8fc2bee1df80 R15: 0000000000000000 Jul 25 16:34:24 timpc kernel: [16627.134191] FS: 00007f082ae56700(0000) GS:ffff8fc2bed00000(0000) knlGS:0000000000000000 Jul 25 16:34:24 timpc kernel: [16627.134192] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jul 25 16:34:24 timpc kernel: [16627.134193] CR2: 0000000000000000 CR3: 0000000738206000 CR4: 00000000003406e0 Jul 25 16:34:39 timpc kernel: [16642.457499] usb 3-3.2: USB disconnect, device number 5 --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu27.18 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: tim 1236 F.... pulseaudio /dev/snd/controlC0: tim 1236 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 20.04 InstallationDate: Installed on 2019-03-05 (897 days ago) InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) MachineType: Gigabyte Technology Co., Ltd. B450 AORUS PRO Package: linux (not installed) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-81-generic root=UUID=b4cd2f9f-6a7b-43b9-b18a-5a90e97d95d7 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 5.4.0-81.91-generic 5.4.128 RelatedPackageVersions: linux-restricted-modules-5.4.0-81-generic N/A linux-backports-modules-5.4.0-81-generic N/A linux-firmware 1.187.15 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no Tags: focal Uname: Linux 5.4.0-81-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip libvirt lpadmin plugdev sambashare sudo vboxusers _MarkForUpload: True dmi.bios.date: 08/08/2018 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F2 dmi.board.asset.tag: Default string dmi.board.name: B450 AORUS PRO-CF dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF2:bd08/08/2018:svnGigabyteTechnologyCo.,Ltd.:pnB450AORUSPRO:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnB450AORUSPRO-CF:rvrx.x:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.family: Default string dmi.product.name: B450 AORUS PRO dmi.product.sku: Default string dmi.product.version: Default string dmi.sys.vendor: Gigabyte Technology Co., Ltd. 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