Public bug reported: We have a repeating (every few hours) kernel OOPS: BUG: kernel NULL pointer dereference, address: 00000000000000a0.
This repeats on several different hardwares so this is not a hardware issue. Attached as a file are 5 dmesg logs and kdump reports. [ 6315.768576] [ T52862] #PF: supervisor read access in kernel mode [ 6315.770893] [ T52862] #PF: error_code(0x0000) - not-present page [ 6315.773266] [ T52862] PGD 0 P4D 0 [ 6315.774528] [ T52862] Oops: 0000 [#1] SMP NOPTI [ 6315.776262] [ T52862] CPU: 399 PID: 52862 Comm: python Kdump: loaded Tainted: P O 6.8.0-1010-aws #10-Ubuntu [ 6315.780647] [ T52862] Hardware name: Amazon EC2 u-12tb1.112xlarge/, BIOS 1.0 10/16/2017 [ 6315.783698] [ T52862] RIP: 0010:pick_next_task_fair+0x91/0x620 [ 6315.785810] [ T52862] Code: 91 00 00 00 49 81 bd b0 02 00 00 00 3b 6f 91 75 60 4d 89 fe eb 27 4c 89 f7 e8 5b b3 ff ff 84 c0 75 3f 4c 89 f7 e8 8f fb fe ff <4c> 8b b0 a0 00 00 00 48 89 c3 4d 85 f6 0f 8> [ 6315.793288] [ T52862] RSP: 0018:ffffbcf57feafb20 EFLAGS: 00010046 [ 6315.795539] [ T52862] RAX: 0000000000000000 RBX: ffffbcf57feafbf0 RCX: 0000000000000000 [ 6315.798481] [ T52862] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 6315.801402] [ T52862] RBP: ffffbcf57feafb60 R08: 0000000000000000 R09: 0000000000000000 [ 6315.804358] [ T52862] R10: 0000000000000000 R11: 0000000000000000 R12: ffffa64bb27b47c0 [ 6315.807298] [ T52862] R13: ffff9ed3e4a88000 R14: ffffa64bb27b48c0 R15: ffffa64bb27b48c0 [ 6315.810210] [ T52862] FS: 00007635af6006c0(0000) GS:ffffa64bb2780000(0000) knlGS:0000000000000000 [ 6315.813512] [ T52862] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 6315.817797] [ T52862] CR2: 00000000000000a0 CR3: 000003029b5dc002 CR4: 00000000007706f0 [ 6315.822588] [ T52862] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 6315.827353] [ T52862] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 6315.832121] [ T52862] PKRU: 55555554 [ 6315.835228] [ T52862] Call Trace: [ 6315.838210] [ T52862] <TASK> [ 6315.841100] [ T52862] ? show_regs+0x6d/0x80 [ 6315.844493] [ T52862] ? __die+0x24/0x80 [ 6315.847706] [ T52862] ? page_fault_oops+0x99/0x1b0 [ 6315.851278] [ T52862] ? do_user_addr_fault+0x2d8/0x6a0 [ 6315.855048] [ T52862] ? exc_page_fault+0x83/0x190 [ 6315.858600] [ T52862] ? asm_exc_page_fault+0x27/0x30 [ 6315.862258] [ T52862] ? pick_next_task_fair+0x91/0x620 [ 6315.865961] [ T52862] pick_next_task+0x5f/0xce0 [ 6315.869496] [ T52862] __schedule+0x16e/0x790 [ 6315.872845] [ T52862] ? os_xsave+0x2e/0x70 [ 6315.876108] [ T52862] schedule+0x2c/0xf0 [ 6315.879234] [ T52862] futex_wait_queue+0x65/0xa0 [ 6315.882626] [ T52862] __futex_wait+0x155/0x1d0 [ 6315.885917] [ T52862] ? __pfx_futex_wake_mark+0x10/0x10 [ 6315.889487] [ T52862] futex_wait+0x74/0x120 [ 6315.892690] [ T52862] ? __pfx_hrtimer_wakeup+0x10/0x10 [ 6315.896211] [ T52862] do_futex+0x105/0x260 [ 6315.899355] [ T52862] __x64_sys_futex+0x12a/0x200 [ 6315.902692] [ T52862] ? __x64_sys_futex+0x12a/0x200 [ 6315.906094] [ T52862] x64_sys_call+0x1ce7/0x25c0 [ 6315.909394] [ T52862] do_syscall_64+0x7f/0x180 [ 6315.912631] [ T52862] ? do_syscall_64+0x8c/0x180 [ 6315.915970] [ T52862] ? switch_fpu_return+0x51/0xd0 [ 6315.919359] [ T52862] ? syscall_exit_to_user_mode+0x86/0x260 [ 6315.923069] [ T52862] ? do_syscall_64+0x8c/0x180 [ 6315.926410] [ T52862] entry_SYSCALL_64_after_hwframe+0x78/0x80 [ 6315.930158] [ T52862] RIP: 0033:0x7635b3e98d61 [ 6315.933439] [ T52862] Code: 48 89 4d c8 e8 00 f8 ff ff 4c 8b 55 c8 8b 75 dc 45 31 c0 41 89 c5 48 8b 7d d0 41 b9 ff ff ff ff 44 89 e2 b8 ca 00 00 00 0f 05 <44> 89 ef 48 89 c3 e8 54 f8 ff ff e9 65 ff f> [ 6315.945541] [ T52862] RSP: 002b:00007635af5fde10 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 6315.951915] [ T52862] RAX: ffffffffffffffda RBX: 00005a22f1a804f0 RCX: 00007635b3e98d61 [ 6315.956420] [ T52862] RDX: 0000000000000000 RSI: 0000000000000089 RDI: 00005a22f1a80518 [ 6315.960936] [ T52862] RBP: 00007635af5fde50 R08: 0000000000000000 R09: 00000000ffffffff [ 6315.965421] [ T52862] R10: 00007635af5fdf60 R11: 0000000000000246 R12: 0000000000000000 [ 6315.969939] [ T52862] R13: 0000000000000000 R14: 00005a22f1a80520 R15: 00005a22f1a80518 [ 6315.974409] [ T52862] </TASK> [ 6315.977123] [ T52862] Modules linked in: cpuid xt_tcpudp veth xt_conntrack nft_chain_nat xt_MASQUERADE nf_nat nf_conntrack_netlink nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xfrm_user xfrm_algo xt_ad> [ 6316.018702] [ T52862] CR2: 00000000000000a0 ProblemType: Bug DistroRelease: Ubuntu 24.04 Package: linux-image-6.8.0-1012-aws 6.8.0-1012.13 ProcVersionSignature: Ubuntu 6.8.0-1012.13-aws 6.8.8 Uname: Linux 6.8.0-1012-aws x86_64 NonfreeKernelModules: zfs ApportVersion: 2.28.1-0ubuntu3 Architecture: amd64 CasperMD5CheckResult: unknown CloudArchitecture: x86_64 CloudBuildName: server CloudID: aws CloudName: aws CloudPlatform: ec2 CloudRegion: us-east-1 CloudSerial: 20220912 CloudSubPlatform: metadata (http://169.254.169.254) Date: Mon Aug 5 08:34:06 2024 Ec2Architecture: x86_64 Ec2Imageid: ami-08c40ec9ead489470 Ec2Instancetype: u-12tb1.112xlarge Ec2Region: us-east-1 ProcEnviron: LANG=C.UTF-8 LC_CTYPE=en_US.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=xterm-256color SourcePackage: linux-signed-aws UpgradeStatus: Upgraded to noble on 2024-06-06 (59 days ago) ** Affects: linux-signed-aws (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug cloud-image noble ** Attachment added: "Dmesg files and kdump reports" https://bugs.launchpad.net/bugs/2076062/+attachment/5802656/+files/crashes.tgz -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2076062 Title: 6.8.0-1010-aws repeating UG: kernel NULL pointer dereference, address: 00000000000000a0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-aws/+bug/2076062/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
