Kernel panic at RIP: process_one_work+0x3b/0x450 (Doc ID 2531522.1)

Last updated on JUNE 11, 2020

Applies to:

Symptoms

Kernel panic with below log:
------------[ cut here ]------------
WARNING: at lib/list_debug.c:30 __list_add+0x8f/0xa0()
Hardware name: HVM domU
list_add corruption. prev->next should be next (ffff88100e7cfc88), but was
(null). (prev=ffff880e95f17d00).
Modules linked in: vfat fat autofs4 ip6table_filter ip6_tables iptable_filter
ip_tables nfs lockd fscache auth_rpcgss nfs_acl sunrpc ipv6 ppdev parport_pc
parport microcode
xen_netfront i2c_piix4 i2c_core ext4 mbcache jbd2 xen_blkfront pata_acpi
ata_generic ata_piix floppy dm_mirror dm_region_hash dm_log dm_mod [last
unloaded: scsi_wait_scan]
Pid: 3277, comm: mount.nfs Not tainted 2.6.39-400.298.2.el6uek.x86_64 #1
Call Trace:
[<ffffffff8106ed7f>] warn_slowpath_common+0x7f/0xc0
[<ffffffff8106ee76>] warn_slowpath_fmt+0x46/0x50
[<ffffffff812000be>] ? security_inode_alloc+0x1e/0x20
[<ffffffff81269d0f>] __list_add+0x8f/0xa0
[<ffffffff81089d94>] insert_work+0x34/0x80
[<ffffffff8108aa1e>] __queue_work+0xfe/0x3f0
[<ffffffff8108ad75>] queue_work_on+0x25/0x30
[<ffffffff8108af3f>] queue_work+0x1f/0x30
[<ffffffff8108affd>] queue_delayed_work+0x2d/0x40
[<ffffffffa01e4a1e>] xs_connect+0x9e/0x100 [sunrpc]
[<ffffffffa01e1c80>] xprt_connect+0x130/0x1b0 [sunrpc]
[<ffffffffa01dee08>] call_connect+0x58/0xa0 [sunrpc]
[<ffffffffa01e8006>] __rpc_execute+0x66/0x1d0 [sunrpc]
[<ffffffffa01e81b3>] rpc_execute+0x43/0x50 [sunrpc]
[<ffffffffa01e0275>] rpc_run_task+0x75/0x90 [sunrpc]
[<ffffffffa01e0392>] rpc_call_sync+0x42/0x70 [sunrpc]
[<ffffffffa028fce5>] nfs3_rpc_wrapper.clone.0+0x35/0x80 [nfs]
[<ffffffffa0291176>] do_proc_fsinfo+0x46/0x90 [nfs]
[<ffffffffa02911eb>] nfs3_proc_fsinfo+0x2b/0x60 [nfs]
[<ffffffffa027657b>] nfs_probe_fsinfo+0x8b/0x160 [nfs]
[<ffffffffa0275e6a>] ? nfs_init_server+0x1ba/0x380 [nfs]
[<ffffffffa0276dc4>] nfs_create_server+0x94/0x220 [nfs]
[<ffffffffa0283218>] nfs_fs_mount+0xc8/0x320 [nfs]
[<ffffffff811718c3>] mount_fs+0x43/0x1a0
[<ffffffff8118d463>] vfs_kern_mount+0x63/0xd0
[<ffffffff8118d552>] do_kern_mount+0x52/0x110
[<ffffffff811ffdca>] ? security_capable+0x2a/0x30
[<ffffffff8118f87d>] do_mount+0x1ed/0x240
[<ffffffff8118f960>] sys_mount+0x90/0xe0
[<ffffffff81519892>] system_call_fastpath+0x16/0x1b
---[ end trace 2f47a202b7394d94 ]---
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<ffffffff8108b26b>] process_one_work+0x3b/0x450
PGD 8000000ef76ff067 PUD ef76fe067 PMD 0
Oops: 0000 [#1] SMP
CPU 14
Modules linked in: vfat fat autofs4 ip6table_filter ip6_tables iptable_filter
ip_tables nfs lockd fscache auth_rpcgss nfs_acl sunrpc ipv6 ppdev parport_pc
parport microcode xen_netfront i2c_piix4 i2c_core ext4 mbcache jbd2
xen_blkfront pata_acpi ata_generic ata_piix floppy dm_mirror dm_region_hash
dm_log dm_mod [last unloaded: scsi_wait_scan]

Pid: 62, comm: kworker/14:0 Tainted: G W
2.6.39-400.298.2.el6uek.x86_64 #1 Xen HVM domU
RIP: 0010:[<ffffffff8108b26b>] [<ffffffff8108b26b>]
process_one_work+0x3b/0x450
RSP: 0018:ffff880faf2afe00 EFLAGS: 00010803
RAX: 07fffc4074af8be7 RBX: ffff880e95f17cf8 RCX: 0000000000000000
RDX: 001ffff101d2be2f RSI: ffff880e95f17cf8 RDI: ffff880faf253940
RBP: ffff880faf2afe50 R08: ffff880faf253940 R09: 0000000000000001
R10: 0000000000000400 R11: 0000000000000001 R12: ffff880faf253940
R13: 0000000000000000 R14: ffff880faf253960 R15: 00000000000124c0
FS: 0000000000000000(0000) GS:ffff88100e7c0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 0000000ee7b2e000 CR4: 0000000000100670
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process kworker/14:0 (pid: 62, threadinfo ffff880faf2ae000, task
ffff880faf2ac640)
Stack:
ffff880d83370718 00000001af2ac640 ffffe8fffefc4b05 ffff880faf253940
ffff88100e7cfc80 ffff880faf253940 ffff88100e7cfc80 ffff88100e7cfc88
ffff880faf253960 00000000000124c0 ffff880faf2afee0 ffffffff8108c940
Call Trace:
[<ffffffff8108c940>] worker_thread+0x170/0x3c0
[<ffffffff8108c7d0>] ? manage_workers+0x120/0x120
[<ffffffff81091b86>] kthread+0x96/0xa0
[<ffffffff8151de74>] kernel_thread_helper+0x4/0x10
[<ffffffff81091af0>] ? kthread_worker_fn+0x1a0/0x1a0
[<ffffffff8151de70>] ? gs_change+0x13/0x13
Code: 28 0f 1f 44 00 00 48 8b 06 45 31 ed 49 89 fc 48 89 f3 48 89 c2 30 d2 a8
04 48 89 f0 4c 0f 45 ea 48 89 f2 48 c1 e8 05 48 c1 ea 0b <4d> 8b 75 00 48 01
c2 49 8b 45 08 83 e2 3f 8b 00 89 45 cc 49 8b
RIP [<ffffffff8108b26b>] process_one_work+0x3b/0x450
RSP <ffff880faf2afe00>
CR2: 0000000000000000
---[ end trace 2f47a202b7394d95 ]---
Kernel panic - not syncing: Fatal exception
Pid: 62, comm: kworker/14:0 Tainted: G D W
2.6.39-400.298.2.el6uek.x86_64 #1
Call Trace:
[<ffffffff8150d85a>] panic+0xa6/0x1bd
[<ffffffff8151251c>] oops_end+0xdc/0xf0
[<ffffffff810485fc>] no_context+0xfc/0x190
[<ffffffff81048725>] __bad_area_nosemaphore+0x95/0x1e0
[<ffffffff8106346c>] ? walk_tg_tree.clone.2+0x3c/0xc0
[<ffffffff81048883>] bad_area_nosemaphore+0x13/0x20
[<ffffffff81515098>] do_page_fault+0x328/0x470
[<ffffffff811076e1>] ? __perf_event_task_sched_out+0x31/0x50
[<ffffffff81067a23>] ? perf_event_task_sched_out+0x33/0xa0
[<ffffffff8125e39e>] ? rb_erase+0xce/0x150
[<ffffffff8105c0c0>] ? __dequeue_entity+0x30/0x50
[<ffffffff8151177c>] page_fault+0x10c/0x120
[<ffffffff8108b26b>] ? process_one_work+0x3b/0x450
[<ffffffff8108c940>] worker_thread+0x170/0x3c0
[<ffffffff8108c7d0>] ? manage_workers+0x120/0x120
[<ffffffff81091b86>] kthread+0x96/0xa0
[<ffffffff8151de74>] kernel_thread_helper+0x4/0x10
[<ffffffff81091af0>] ? kthread_worker_fn+0x1a0/0x1a0
[<ffffffff8151de70>] ? gs_change+0x13/0x13

Cause

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