lkml.org 
[lkml]   [2024]   [Mar]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: possible 6.6 regression: Deadlock involving super_lock()
> Also, one writeback thread was blocked. I mention that, because I
> don't get how these these two threads could depend on each other:

Writeback holds s_umount. So writeback seems to not make progress and
blocks the mount. So right now it seems unlikely that this is related.
Any chance you can try and reproduce this with v6.7 and newer?

> # # /proc/39359/task/39359: kworker/u268:5+flush-0:58 :
> # cat /proc/39359/task/39359/stack
>
> [<0>] folio_wait_bit_common+0x135/0x350
> [<0>] write_cache_pages+0x1a0/0x3a0
> [<0>] nfs_writepages+0x12a/0x1e0 [nfs]
> [<0>] do_writepages+0xcf/0x1e0
> [<0>] __writeback_single_inode+0x46/0x3a0
> [<0>] writeback_sb_inodes+0x1f5/0x4d0
> [<0>] __writeback_inodes_wb+0x4c/0xf0
> [<0>] wb_writeback+0x1f5/0x320
> [<0>] wb_workfn+0x350/0x4f0
> [<0>] process_one_work+0x142/0x300
> [<0>] worker_thread+0x2f5/0x410
> [<0>] kthread+0xe8/0x120
> [<0>] ret_from_fork+0x34/0x50
> [<0>] ret_from_fork_asm+0x1b/0x30

\
 
 \ /
  Last update: 2024-05-27 15:58    [W:0.047 / U:0.736 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site