[LU-8743] client stuck in cl_inode_fini()

• Type: Bug
• Resolution: Duplicate
• Priority: Major
• Affects Version/s: Lustre 2.5.3
• Labels: llnl
• Environment: lustre-2.5.5-9chaos.2.ch6.x86_64; Linux quartz377 3.10.0-327.28.2.1chaos.ch6.x86_64 #1 SMP Wed Aug 3 15:09:48 PDT 2016 x86_64 x86_64 x86_64 GNU/Linux
• Severity: 3
• Assignee: Zhenyu Xu
• Reporter: Ned Bass (Inactive)

Description

Have a user process stuck with the following stacktrace.

[<ffffffffa11c2fdd>] cl_inode_fini+0x1ad/0x270 [lustre]
[<ffffffffa118511d>] ll_clear_inode+0x25d/0x9d0 [lustre]
[<ffffffffa11870d8>] ll_delete_inode+0x58/0x1d0 [lustre]
[<ffffffff812040b7>] evict+0xa7/0x170
[<ffffffff812049b5>] iput+0xf5/0x180
[<ffffffffa114de34>] ll_d_iput+0xf4/0x7f0 [lustre]
[<ffffffff811ffbe6>] dentry_kill+0x146/0x1b0
[<ffffffff811ffcac>] dput+0x5c/0xd0
[<ffffffff811e9aae>] __fput+0x18e/0x280
[<ffffffff811e9cee>] ____fput+0xe/0x10
[<ffffffff810a60b4>] task_work_run+0xb4/0xe0
[<ffffffff81016bb2>] do_notify_resume+0x92/0xb0
[<ffffffff8165dd3d>] int_signal+0x12/0x17
[<ffffffffffffffff>] 0xffffffffffffffff

(gdb) l *(cl_inode_fini+0x1ad)
0x75fdd is in cl_inode_fini (/usr/src/debug/lustre-2.5.5/lustre/lclient/lcommon_cl.c:1244).
1239
1240                    init_waitqueue_entry_current(&waiter);
1241                    add_wait_queue(&bkt->lsb_marche_funebre, &waiter);
1242
1243                    while (1) {
1244                            set_current_state(TASK_UNINTERRUPTIBLE);
1245                            if (cfs_atomic_read(&header->loh_ref) == 1)
1246                                    break;
1247                            waitq_wait(&waiter, TASK_UNINTERRUPTIBLE);
1248                    }
(gdb)

Issue Links

• duplicates: LU-8509 drop_caches hangs in cl_inode_fini()
• is related to: LU-8509 drop_caches hangs in cl_inode_fini()

Comments

[Peter Jones]

ok so this is believed to be a duplicate of LU-8509, which fix has not been picked up yet but is in progress

[Zhenyu Xu]

http://review.whamcloud.com/#/c/23316/ then contains the fix.

[Peter Jones]

Yes both of those are in 2.8.0 itself.

[Zhenyu Xu]

Does this chaos branch contains #7893 and #10503 patches?

[Peter Jones]

Bobijam

Could you please advise on this one?

Thanks

Peter