linux-kernel - Re: [6.2][regression] after commit 947a629988f191807d2d22ba63ae18259bb645c5 btrfs volume periodical forced switch to readonly after a lot of disk writes

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Date:   Mon, 26 Dec 2022 16:14:29 +0500
From:   Mikhail Gavrilov <mikhail.v.gavrilov@...il.com>
To:     Qu Wenruo <quwenruo.btrfs@....com>
Cc:     wqu@...e.com, dsterba@...e.com,
        Btrfs BTRFS <linux-btrfs@...r.kernel.org>,
        Linux List Kernel Mailing <linux-kernel@...r.kernel.org>
Subject: Re: [6.2][regression] after commit 947a629988f191807d2d22ba63ae18259bb645c5
 btrfs volume periodical forced switch to readonly after a lot of disk writes

On Mon, Dec 26, 2022 at 1:47 PM Qu Wenruo <quwenruo.btrfs@....com> wrote:
>
>
> With the check output, it's indeed a runtime error.
> (At least no corruption to your fs)
>
> And it can be some call paths not properly initializing the level to check.
>
> Here is the new debug patch.
> It should be applied without any previous debug patch.
>

yeah, gotcha trace

[ 2561.764141] BTRFS error (device nvme1n1p3): level verify failed on
logical 45170688 mirror 1 wanted 0 found 1
[ 2561.764220] BTRFS error (device nvme1n1p3): read time tree block
corruption detected on logical 45170688 mirror 1
[ 2561.764224] BTRFS error (device nvme1n1p3): check owner_root=0
transid=0 first_key=(0 0 0) has_first_key=0 level=0
[ 2561.764242] BTRFS error (device nvme1n1p3): read failed, check
owner_root=259 transid=650936 has_first_key=1 first_key=(2221294 1 0)
level=1
[ 2561.764342] CPU: 8 PID: 727 Comm: systemd-udevd Tainted: G        W
   L     6.2.0-rc1-1b929c02afd37871d5afb9d498426f83432e71c2-btrfs-debug2+
#3
[ 2561.764348] Hardware name: ASUSTeK COMPUTER INC. ROG Strix
G513QY_G513QY/G513QY, BIOS G513QY.320 09/07/2022
[ 2561.764352] Call Trace:
[ 2561.764355]  <TASK>
[ 2561.764360]  dump_stack_lvl+0x5b/0x77
[ 2561.764369]  read_extent_buffer_pages.cold+0x5a/0x9d
[ 2561.764382]  ? __pfx_end_bio_extent_readpage+0x10/0x10
[ 2561.764390]  ? folio_unlock+0x1d/0x50
[ 2561.764400]  btrfs_read_extent_buffer+0x98/0x150
[ 2561.764410]  read_tree_block+0x43/0xa0
[ 2561.764417]  read_block_for_search+0x218/0x320
[ 2561.764432]  btrfs_search_slot+0x351/0xd30
[ 2561.764450]  btrfs_lookup_xattr+0x7b/0xe0
[ 2561.764460]  btrfs_getxattr+0x55/0x110
[ 2561.764470]  __vfs_getxattr+0x7e/0xb0
[ 2561.764480]  get_vfs_caps_from_disk+0x7a/0x220
[ 2561.764492]  audit_copy_inode+0x95/0xd0
[ 2561.764501]  filename_lookup+0x16b/0x1c0
[ 2561.764525]  ? _raw_spin_unlock+0x29/0x50
[ 2561.764534]  vfs_statx+0x8e/0x150
[ 2561.764545]  vfs_fstatat+0x51/0x70
[ 2561.764553]  __do_sys_newfstatat+0x2e/0x50
[ 2561.764571]  do_syscall_64+0x5b/0x80
[ 2561.764576]  ? do_syscall_64+0x67/0x80
[ 2561.764585]  ? up_read+0x17/0x20
[ 2561.764593]  ? lock_is_held_type+0xe8/0x140
[ 2561.764601]  ? asm_exc_page_fault+0x22/0x30
[ 2561.764607]  ? lockdep_hardirqs_on+0x7d/0x100
[ 2561.764613]  entry_SYSCALL_64_after_hwframe+0x72/0xdc
[ 2561.764618] RIP: 0033:0x7f7b1b91e05e
[ 2561.764639] Code: 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff
e9 07 00 00 00 0f 1f 80 00 00 00 00 f3 0f 1e fa 41 89 ca b8 06 01 00
00 0f 05 <3d> 00 f0 ff ff 77 0b 31 c0 c3 0f 1f 84 00 00 00 00 00 48 8b
15 71
[ 2561.764643] RSP: 002b:00007fffdc4062c8 EFLAGS: 00000246 ORIG_RAX:
0000000000000106
[ 2561.764649] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7b1b91e05e
[ 2561.764653] RDX: 00007fffdc406320 RSI: 000055efe7d04bc0 RDI: 00000000ffffff9c
[ 2561.764656] RBP: 000055efe7e79668 R08: 00000000000000f0 R09: 000055efe7ea85b0
[ 2561.764659] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffdc4064b0
[ 2561.764663] R13: 00007fffdc406320 R14: 00007fffdc4064a8 R15: 00007fffdc406308
[ 2561.764680]  </TASK>
[ 2561.764684] BTRFS error (device nvme1n1p3): read failed, check
owner_root=259 transid=650936 has_first_key=1 first_key=(2221294 1 0)
level=1

Of course full logs are also attached.
Thanks.

-- 
Best Regards,
Mike Gavrilov.

View attachment "btrfs-issue-dmesg-debug2.txt" of type "text/plain" (763288 bytes)