* [2.6.39-rc1] extent reference leaking...
@ 2011-03-30 10:37 Daniel J Blueman
2011-03-30 11:24 ` Chris Mason
0 siblings, 1 reply; 2+ messages in thread
From: Daniel J Blueman @ 2011-03-30 10:37 UTC (permalink / raw)
To: Linux BTRFS
When running the Linux Test Project against a BTRFS RAID 1 array,
after some time I see BTRFS trying to free an extent that still has
state [1].
Let me know if anyone is interested in a more specific reproducer and
I'll take a look.
Daniel
--- [1]
WARNING: at fs/btrfs/extent_io.c:3371 free_extent_buffer+0x31/0x40()
Hardware name: X8STi
Modules linked in: tun microcode loop raid10 raid456 async_memcpy
async_pq async_xor xor async_raid6_recov raid6_pq async_tx raid1 raid0
multipath linear md_mod
Pid: 14202, comm: ftest08 Tainted: G W 2.6.39-rc1-350cd #1
Call Trace:
[<ffffffff8105f81a>] warn_slowpath_common+0x7a/0xb0
[<ffffffff8105f865>] warn_slowpath_null+0x15/0x20
[<ffffffff812b6711>] free_extent_buffer+0x31/0x40
[<ffffffff8127ad40>] btrfs_lock_root_node+0x20/0x50
[<ffffffff8127b530>] btrfs_search_slot+0x400/0x790
[<ffffffff81275eb5>] ? btrfs_alloc_path+0x15/0x30
[<ffffffff81275eb5>] ? btrfs_alloc_path+0x15/0x30
[<ffffffff8128e053>] btrfs_lookup_csums_range+0x83/0x4b0
[<ffffffff812b56be>] ? unmap_extent_buffer+0xe/0x40
[<ffffffff812a8744>] ? btrfs_file_extent_compression+0xe4/0xf0
[<ffffffff812cd325>] copy_items+0x315/0x3f0
[<ffffffff812cf03a>] btrfs_log_inode+0x3ea/0x520
[<ffffffff812ce3bb>] ? start_log_trans+0x6b/0x150
[<ffffffff812cf463>] btrfs_log_inode_parent+0x193/0x2e0
[<ffffffff81156424>] ? dget_parent+0x94/0x100
[<ffffffff811563a7>] ? dget_parent+0x17/0x100
[<ffffffff812cf664>] btrfs_log_dentry_safe+0x44/0x70
[<ffffffff812a5afb>] btrfs_sync_file+0xeb/0x190
[<ffffffff8116bb43>] vfs_fsync_range+0x73/0x90
[<ffffffff81141470>] ? fget_raw+0x260/0x260
[<ffffffff8116bbb7>] vfs_fsync+0x17/0x20
[<ffffffff8116bbf5>] do_fsync+0x35/0x60
[<ffffffff8116bc4b>] sys_fsync+0xb/0x10
[<ffffffff816edf3b>] system_call_fastpath+0x16/0x1b
---[ end trace a7919e7f17c0a728 ]---
--
Daniel J Blueman
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [2.6.39-rc1] extent reference leaking...
2011-03-30 10:37 [2.6.39-rc1] extent reference leaking Daniel J Blueman
@ 2011-03-30 11:24 ` Chris Mason
0 siblings, 0 replies; 2+ messages in thread
From: Chris Mason @ 2011-03-30 11:24 UTC (permalink / raw)
To: Daniel J Blueman; +Cc: Linux BTRFS
Excerpts from Daniel J Blueman's message of 2011-03-30 06:37:57 -0400:
> When running the Linux Test Project against a BTRFS RAID 1 array,
> after some time I see BTRFS trying to free an extent that still has
> state [1].
>
> Let me know if anyone is interested in a more specific reproducer and
> I'll take a look.
Very interested. I didn't see this one in testing and it isn't good at
all.
-chris
>
> Daniel
>
> --- [1]
>
> WARNING: at fs/btrfs/extent_io.c:3371 free_extent_buffer+0x31/0x40()
> Hardware name: X8STi
> Modules linked in: tun microcode loop raid10 raid456 async_memcpy
> async_pq async_xor xor async_raid6_recov raid6_pq async_tx raid1 raid0
> multipath linear md_mod
> Pid: 14202, comm: ftest08 Tainted: G W 2.6.39-rc1-350cd #1
> Call Trace:
> [<ffffffff8105f81a>] warn_slowpath_common+0x7a/0xb0
> [<ffffffff8105f865>] warn_slowpath_null+0x15/0x20
> [<ffffffff812b6711>] free_extent_buffer+0x31/0x40
> [<ffffffff8127ad40>] btrfs_lock_root_node+0x20/0x50
> [<ffffffff8127b530>] btrfs_search_slot+0x400/0x790
> [<ffffffff81275eb5>] ? btrfs_alloc_path+0x15/0x30
> [<ffffffff81275eb5>] ? btrfs_alloc_path+0x15/0x30
> [<ffffffff8128e053>] btrfs_lookup_csums_range+0x83/0x4b0
> [<ffffffff812b56be>] ? unmap_extent_buffer+0xe/0x40
> [<ffffffff812a8744>] ? btrfs_file_extent_compression+0xe4/0xf0
> [<ffffffff812cd325>] copy_items+0x315/0x3f0
> [<ffffffff812cf03a>] btrfs_log_inode+0x3ea/0x520
> [<ffffffff812ce3bb>] ? start_log_trans+0x6b/0x150
> [<ffffffff812cf463>] btrfs_log_inode_parent+0x193/0x2e0
> [<ffffffff81156424>] ? dget_parent+0x94/0x100
> [<ffffffff811563a7>] ? dget_parent+0x17/0x100
> [<ffffffff812cf664>] btrfs_log_dentry_safe+0x44/0x70
> [<ffffffff812a5afb>] btrfs_sync_file+0xeb/0x190
> [<ffffffff8116bb43>] vfs_fsync_range+0x73/0x90
> [<ffffffff81141470>] ? fget_raw+0x260/0x260
> [<ffffffff8116bbb7>] vfs_fsync+0x17/0x20
> [<ffffffff8116bbf5>] do_fsync+0x35/0x60
> [<ffffffff8116bc4b>] sys_fsync+0xb/0x10
> [<ffffffff816edf3b>] system_call_fastpath+0x16/0x1b
> ---[ end trace a7919e7f17c0a728 ]---
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2011-03-30 11:24 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2011-03-30 10:37 [2.6.39-rc1] extent reference leaking Daniel J Blueman
2011-03-30 11:24 ` Chris Mason
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).