I have seen on multiple servers with kernel-4.14.26 and 4.14.27 following errors in dmes. It seems that it also caused involved process to crash (apache and qmail-smtpd).
[Fri Mar 16 00:00:11 2018] BUG: unable to handle kernel NULL pointer dereference at 0000000000000038 [Fri Mar 16 00:00:11 2018] IP: tcp_push+0x3d/0x110 [Fri Mar 16 00:00:11 2018] PGD 0 P4D 0 [Fri Mar 16 00:00:11 2018] Oops: 0002 [#1] SMP NOPTI [Fri Mar 16 00:00:11 2018] CPU: 74 PID: 50845 Comm: parse_scanner.p Not tainted 4.14.27-gentoo #1 [Fri Mar 16 00:00:11 2018] Hardware name: Supermicro AS -1123US-TR4/H11DSU-iN, BIOS 1.0a 09/14/2017 [Fri Mar 16 00:00:11 2018] task: ffffa33f855226c0 task.stack: ffffbf3765394000 [Fri Mar 16 00:00:11 2018] RIP: 0010:tcp_push+0x3d/0x110 [Fri Mar 16 00:00:11 2018] RSP: 0018:ffffbf3765397cd0 EFLAGS: 00010246 [Fri Mar 16 00:00:11 2018] RAX: 0000000000000000 RBX: ffffa33b8664d000 RCX: 0000000000000000 [Fri Mar 16 00:00:11 2018] RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffffa33b6338ac00 [Fri Mar 16 00:00:11 2018] RBP: 0000000000001c20 R08: 0000000000000576 R09: ffffa33b6338ad58 [Fri Mar 16 00:00:11 2018] R10: 0000000000000576 R11: 0000000000000000 R12: 00000000ffffffe0 [Fri Mar 16 00:00:11 2018] R13: 0000000000001c20 R14: ffffa33b6338ac00 R15: ffffbf3765397dd0 [Fri Mar 16 00:00:11 2018] FS: 00007f64301f1700(0000) GS:ffffa33b9fc80000(0000) knlGS:0000000000000000 [Fri Mar 16 00:00:11 2018] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [Fri Mar 16 00:00:11 2018] CR2: 0000000000000038 CR3: 0000800ff30bc000 CR4: 00000000001406e0 [Fri Mar 16 00:00:11 2018] Call Trace: [Fri Mar 16 00:00:11 2018] tcp_sendmsg_locked+0x65c/0xe40 [Fri Mar 16 00:00:11 2018] tcp_sendmsg+0x2e/0x50 [Fri Mar 16 00:00:11 2018] sock_sendmsg+0x3e/0x50 [Fri Mar 16 00:00:11 2018] SYSC_sendto+0x123/0x1c0 [Fri Mar 16 00:00:11 2018] do_syscall_64+0x80/0x340 [Fri Mar 16 00:00:11 2018] ? __do_page_fault+0x19c/0x3f0 [Fri Mar 16 00:00:11 2018] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [Fri Mar 16 00:00:11 2018] RIP: 0033:0x7f642f9d0b01 [Fri Mar 16 00:00:11 2018] RSP: 002b:00007ffcfaa9c530 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [Fri Mar 16 00:00:11 2018] RAX: ffffffffffffffda RBX: 0000562485e03c18 RCX: 00007f642f9d0b01 [Fri Mar 16 00:00:11 2018] RDX: 0000000000002000 RSI: 0000562485e03c18 RDI: 0000000000000004 [Fri Mar 16 00:00:11 2018] RBP: 0000562485a6d2a8 R08: 0000000000000000 R09: 0000000000000000 [Fri Mar 16 00:00:11 2018] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [Fri Mar 16 00:00:11 2018] R13: 0000562485e03c18 R14: 0000000000002000 R15: 0000562485c18300 [Fri Mar 16 00:00:11 2018] Code: 00 48 8b 87 60 01 00 00 4c 8d 8f 58 01 00 00 b9 00 00 00 00 41 89 f3 49 39 c1 48 0f 44 c1 41 81 e3 00 80 00 00 0f 85 a5 00 00 00 <80> 48 38 08 8b 8f 6c 06 00 00 89 8f 74 06 00 00 83 e6 01 74 0c [Fri Mar 16 00:00:11 2018] RIP: tcp_push+0x3d/0x110 RSP: ffffbf3765397cd0 [Fri Mar 16 00:00:11 2018] CR2: 0000000000000038 [Fri Mar 16 00:00:11 2018] ---[ end trace 4ed52c64cd15c543 ]--- [Thu Mar 15 14:56:06 2018] BUG: unable to handle kernel NULL pointer dereference at 0000000000000038 [Thu Mar 15 14:56:06 2018] IP: tcp_push+0x3d/0x110 [Thu Mar 15 14:56:06 2018] PGD 0 P4D 0 [Thu Mar 15 14:56:06 2018] Oops: 0002 [#1] SMP NOPTI [Thu Mar 15 14:56:06 2018] CPU: 2 PID: 17214 Comm: rsync Not tainted 4.14.26-gentoo #1 [Thu Mar 15 14:56:06 2018] Hardware name: Xen HVM domU, BIOS 4.9.1 01/26/2018 [Thu Mar 15 14:56:06 2018] task: ffff880164ca9a00 task.stack: ffffc90002548000 [Thu Mar 15 14:56:06 2018] RIP: 0010:tcp_push+0x3d/0x110 [Thu Mar 15 14:56:06 2018] RSP: 0018:ffffc9000254bc90 EFLAGS: 00010246 [Thu Mar 15 14:56:06 2018] RAX: 0000000000000000 RBX: ffff88006cf6a380 RCX: 0000000000000000 [Thu Mar 15 14:56:06 2018] RDX: 0000000000000000 RSI: 0000000000000040 RDI: ffff880100025d00 [Thu Mar 15 14:56:06 2018] RBP: 00000000000065d0 R08: 00000000000043e0 R09: ffff880100025e58 [Thu Mar 15 14:56:06 2018] R10: 00000000000005a8 R11: 0000000000000000 R12: 00000000000065d0 [Thu Mar 15 14:56:06 2018] R13: 00000000ffffffe0 R14: ffffc9000254bd80 R15: ffff880100025d00 [Thu Mar 15 14:56:06 2018] FS: 00007f1ffba19e80(0000) GS:ffff88018f500000(0000) knlGS:0000000000000000 [Thu Mar 15 14:56:06 2018] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [Thu Mar 15 14:56:06 2018] CR2: 0000000000000038 CR3: 0000000093550000 CR4: 00000000000406e0 [Thu Mar 15 14:56:06 2018] Call Trace: [Thu Mar 15 14:56:06 2018] tcp_sendmsg_locked+0x32d/0xe50 [Thu Mar 15 14:56:06 2018] tcp_sendmsg+0x2e/0x50 [Thu Mar 15 14:56:06 2018] sock_sendmsg+0x3e/0x50 [Thu Mar 15 14:56:06 2018] sock_write_iter+0x86/0x100 [Thu Mar 15 14:56:06 2018] __vfs_write+0x14d/0x1c0 [Thu Mar 15 14:56:06 2018] vfs_write+0xc3/0x1d0 [Thu Mar 15 14:56:06 2018] SyS_write+0x62/0xe0 [Thu Mar 15 14:56:06 2018] do_syscall_64+0x87/0x330 [Thu Mar 15 14:56:06 2018] ? __do_page_fault+0x1e0/0x450 [Thu Mar 15 14:56:06 2018] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [Thu Mar 15 14:56:06 2018] RIP: 0033:0x7f1ffaef0b50 [Thu Mar 15 14:56:06 2018] RSP: 002b:00007ffe0b34a9d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [Thu Mar 15 14:56:06 2018] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1ffaef0b50 [Thu Mar 15 14:56:06 2018] RDX: 000000000000c195 RSI: 0000558248b77bc0 RDI: 0000000000000003 [Thu Mar 15 14:56:06 2018] RBP: 00007ffe0b34aa50 R08: 000000000000c195 R09: e34308fec493ee59 [Thu Mar 15 14:56:06 2018] R10: 00007ffe0b34aad0 R11: 0000000000000246 R12: 00007ffe0b34ab50 [Thu Mar 15 14:56:06 2018] R13: 00007ffe0b34aad0 R14: 0000000000000002 R15: 0000558247c3b440 [Thu Mar 15 14:56:06 2018] Code: 00 48 8b 87 60 01 00 00 4c 8d 8f 58 01 00 00 b9 00 00 00 00 41 89 f3 4c 39 c8 48 0f 44 c1 41 81 e3 00 80 00 00 0f 85 a5 00 00 00 <80> 48 38 08 8b 8f 6c 06 00 00 89 8f 74 06 00 00 83 e6 01 74 0c [Thu Mar 15 14:56:06 2018] RIP: tcp_push+0x3d/0x110 RSP: ffffc9000254bc90 [Thu Mar 15 14:56:06 2018] CR2: 0000000000000038 [Thu Mar 15 14:56:06 2018] ---[ end trace 6a582fb8616d56be ]--- [Sat Mar 17 04:47:25 2018] BUG: unable to handle kernel NULL pointer dereference at 0000000000000038 [Sat Mar 17 04:47:25 2018] IP: tcp_push+0x3d/0x110 [Sat Mar 17 04:47:25 2018] PGD 0 P4D 0 [Sat Mar 17 04:47:25 2018] Oops: 0002 [#2] SMP NOPTI [Sat Mar 17 04:47:25 2018] CPU: 1 PID: 20758 Comm: rsync Tainted: G D 4.14.26-gentoo #1 [Sat Mar 17 04:47:25 2018] Hardware name: Xen HVM domU, BIOS 4.9.1 01/26/2018 [Sat Mar 17 04:47:25 2018] task: ffff8800b1b5c100 task.stack: ffffc90002388000 [Sat Mar 17 04:47:25 2018] RIP: 0010:tcp_push+0x3d/0x110 [Sat Mar 17 04:47:25 2018] RSP: 0018:ffffc9000238bc90 EFLAGS: 00010246 [Sat Mar 17 04:47:25 2018] RAX: 0000000000000000 RBX: ffff8800a8c90c40 RCX: 0000000000000000 [Sat Mar 17 04:47:25 2018] RDX: 0000000000000000 RSI: 0000000000000040 RDI: ffff88005e0f2e80 [Sat Mar 17 04:47:25 2018] RBP: 0000000000007038 R08: 0000000000005028 R09: ffff88005e0f2fd8 [Sat Mar 17 04:47:25 2018] R10: 0000000000000558 R11: 0000000000000000 R12: 0000000000007038 [Sat Mar 17 04:47:25 2018] R13: 00000000ffffffe0 R14: ffffc9000238bd80 R15: ffff88005e0f2e80 [Sat Mar 17 04:47:25 2018] FS: 00007f1ffba19e80(0000) GS:ffff88018f480000(0000) knlGS:0000000000000000 [Sat Mar 17 04:47:25 2018] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [Sat Mar 17 04:47:25 2018] CR2: 0000000000000038 CR3: 00000001029fe000 CR4: 00000000000406e0 [Sat Mar 17 04:47:25 2018] Call Trace: [Sat Mar 17 04:47:25 2018] tcp_sendmsg_locked+0x32d/0xe50 [Sat Mar 17 04:47:25 2018] tcp_sendmsg+0x2e/0x50 [Sat Mar 17 04:47:25 2018] sock_sendmsg+0x3e/0x50 [Sat Mar 17 04:47:25 2018] sock_write_iter+0x86/0x100 [Sat Mar 17 04:47:25 2018] __vfs_write+0x14d/0x1c0 [Sat Mar 17 04:47:25 2018] vfs_write+0xc3/0x1d0 [Sat Mar 17 04:47:25 2018] SyS_write+0x62/0xe0 [Sat Mar 17 04:47:25 2018] do_syscall_64+0x87/0x330 [Sat Mar 17 04:47:25 2018] ? __do_page_fault+0x1e0/0x450 [Sat Mar 17 04:47:25 2018] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [Sat Mar 17 04:47:25 2018] RIP: 0033:0x7f1ffaef0b50 [Sat Mar 17 04:47:26 2018] RSP: 002b:00007ffe0b34a9d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [Sat Mar 17 04:47:26 2018] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1ffaef0b50 [Sat Mar 17 04:47:26 2018] RDX: 000000000000fe15 RSI: 0000558248b77bd0 RDI: 0000000000000003 [Sat Mar 17 04:47:26 2018] RBP: 00007ffe0b34aa50 R08: 000000000000fe15 R09: 0000000000003dae [Sat Mar 17 04:47:26 2018] R10: 00007ffe0b34aad0 R11: 0000000000000246 R12: 00007ffe0b34ab50 [Sat Mar 17 04:47:26 2018] R13: 00007ffe0b34aad0 R14: 0000000000000002 R15: 0000558247c3b440 [Sat Mar 17 04:47:26 2018] Code: 00 48 8b 87 60 01 00 00 4c 8d 8f 58 01 00 00 b9 00 00 00 00 41 89 f3 4c 39 c8 48 0f 44 c1 41 81 e3 00 80 00 00 0f 85 a5 00 00 00 <80> 48 38 08 8b 8f 6c 06 00 00 89 8f 74 06 00 00 83 e6 01 74 0c [Sat Mar 17 04:47:26 2018] RIP: tcp_push+0x3d/0x110 RSP: ffffc9000238bc90 [Sat Mar 17 04:47:26 2018] CR2: 0000000000000038 [Sat Mar 17 04:47:26 2018] ---[ end trace 6a582fb8616d56bf ]--- -- Tomas Charvat EXCELLO | Virusfree w: www.virusfree.cz e: t...@excello.cz
signature.asc
Description: OpenPGP digital signature
