Overlay stack trace in system logs

Solution Verified - Updated -

Issue

  • The following stack trace is seen in /var/log/messages or dmesg after attempting to run a K8s pod:
[ 1035.991136] CPU: 28 PID: 25123 Comm: kafka-producer- Tainted: P        W  OE    --------- -  - 4.18.0-305.19.1.el8_4.x86_64 #1
[ 1035.991137] Hardware name: HPE ProLiant XL170r Gen10/ProLiant XL170r Gen10, BIOS U38 03/08/2022
[ 1035.991139] RIP: 0010:ovl_real_fdget_meta+0x122/0x130 [overlay]
[ 1035.991141] Code: 8d 6c 24 30 48 89 ef e8 ec d3 09 de 41 8b 54 24 40 48 89 ef 80 e6 b3 09 d3 41 89 5c 24 40 c6 07 00 0f 1f 40 00 e9 29 ff ff ff <0f> 0b b8 fb ff ff ff e9 1f ff ff ff 66 90 0f 1f 44 00 00 41 56 41
[ 1035.991142] RSP: 0018:ffffb3c563b9bdd8 EFLAGS: 00010206
[ 1035.991142] RAX: ffff8db37e978588 RBX: ffffb3c563b9be00 RCX: 0000000000008401
[ 1035.991143] RDX: 0000000004048402 RSI: 0000000000000003 RDI: ffff8db7fa314240
[ 1035.991143] RBP: ffff8d879dae0100 R08: 000000007c7bfd5e R09: ffffffff9eae4bb2
[ 1035.991144] R10: 00000000ffffffff R11: ffff8d879dae0100 R12: ffff8d879dae1100
[ 1035.991144] R13: ffffb3c563b9be88 R14: ffff8d879dae0100 R15: ffffb3c563b9be60
[ 1035.991145] FS:  00007fc0d8acdb38(0000) GS:ffff8db83f100000(0000) knlGS:0000000000000000
[ 1035.991146] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1035.991146] CR2: 00000000c28a3000 CR3: 0000005c30848006 CR4: 00000000007706e0
[ 1035.991147] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1035.991147] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1035.991147] PKRU: 55555554
[ 1035.991148] Call Trace:
[ 1035.991153]  ovl_write_iter+0xed/0x310 [overlay]
[ 1035.991159]  new_sync_write+0x112/0x160
[ 1035.991162]  vfs_write+0xa5/0x1a0
[ 1035.991163]  ksys_write+0x4f/0xb0
[ 1035.991167]  do_syscall_64+0x5b/0x1a0
[ 1035.991172]  entry_SYSCALL_64_after_hwframe+0x65/0xca
[ 1035.991174] RIP: 0033:0x7fc0fe8363c1
[ 1035.991175] Code: c3 8b 07 85 c0 75 24 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> e9 6a d1 ff ff 41 54 b8 02 00 00 00 49 89 f4 be 00 88 08 00 55
[ 1035.991175] RSP: 002b:00007fc0d8aca8e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1035.991176] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc0fe8363c1
[ 1035.991177] RDX: 0000000000000114 RSI: 00007fc0d8aca990 RDI: 000000000000038f
[ 1035.991177] RBP: 00007fc0d8acdb38 R08: 0000000000000000 R09: 0000000000000000
[ 1035.991177] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000114
[ 1035.991178] R13: 00007fc0d8aca990 R14: 000000000000038f R15: 00007fc0dd743348
[ 1035.991179] ---[ end trace 87df1297f6f0de72 ]---

Environment

  • Red Hat Enterprise Linux 8
  • upstream k8s

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