Re: kernel BUG at fs/btrfs/extent-tree.c:8113! (4.1.3 kernel)

[Marc MERLIN <marc@merlins.org>]

On Mon, Aug 17, 2015 at 10:01:16AM +0800, Qu Wenruo wrote:
> Hi Marc,
 
Hi Qu, thanks for your answer and looking at this.

> Did btrfs-debug-tree also has the crash?
> 
> If not, would you please attach the output if it doesn't contain
> classified data.
 
Sure thing:
btrfs-debug-tree /dev/mapper/crypt_sdd1 > /tmp/tree.out
parent transid verify failed on 2968115101696 wanted 34855 found 39533
parent transid verify failed on 2968115101696 wanted 34855 found 39533
parent transid verify failed on 2968115101696 wanted 34855 found 39533
parent transid verify failed on 2968115101696 wanted 34855 found 39533
Ignoring transid failure
parent transid verify failed on 2968115134464 wanted 34855 found 39533
parent transid verify failed on 2968115134464 wanted 34855 found 39533
parent transid verify failed on 2968115134464 wanted 34855 found 39533
parent transid verify failed on 2968115134464 wanted 34855 found 39533
Ignoring transid failure
parent transid verify failed on 2968115150848 wanted 34855 found 39533
parent transid verify failed on 2968115150848 wanted 34855 found 39533
parent transid verify failed on 2968115150848 wanted 34855 found 39533
parent transid verify failed on 2968115150848 wanted 34855 found 39533
Ignoring transid failure
parent transid verify failed on 2968115691520 wanted 34855 found 39533
parent transid verify failed on 2968115691520 wanted 34855 found 39533
parent transid verify failed on 2968115691520 wanted 34855 found 39533
parent transid verify failed on 2968115691520 wanted 34855 found 39533
Ignoring transid failure
parent transid verify failed on 1291597152256 wanted 35830 found 39530
parent transid verify failed on 1291597152256 wanted 35830 found 39530
parent transid verify failed on 1291597152256 wanted 35830 found 39530
parent transid verify failed on 1291597152256 wanted 35830 found 39530
Ignoring transid failure
parent transid verify failed on 2968116592640 wanted 34855 found 39533
parent transid verify failed on 2968116592640 wanted 34855 found 39533
parent transid verify failed on 2968116592640 wanted 34855 found 39533
parent transid verify failed on 2968116592640 wanted 34855 found 39533
Ignoring transid failure
parent transid verify failed on 2968116609024 wanted 34855 found 39533
parent transid verify failed on 2968116609024 wanted 34855 found 39533
parent transid verify failed on 2968116609024 wanted 34855 found 39533
parent transid verify failed on 2968116609024 wanted 34855 found 39533
Ignoring transid failure
print-tree.c:1094: btrfs_print_tree: Assertion failed.
btrfs-debug-tree[0x805ce93]
btrfs-debug-tree(btrfs_print_tree+0x26d)[0x805eb51]
btrfs-debug-tree(btrfs_print_tree+0x279)[0x805eb5d]
btrfs-debug-tree(main+0x8b5)[0x804dfb7]
/lib/i386-linux-gnu/libc.so.6(__libc_start_main+0xf3)[0xb757c4d3]
btrfs-debug-tree[0x804e221]

Do you want the actual output?
(it's 1.1GB uncompressed)

Marc


> Thanks,
> Qu
> 
> Marc MERLIN wrote on 2015/08/12 10:19 -0700:
> >On Wed, Aug 12, 2015 at 12:18:45PM -0400, Josef Bacik wrote:
> >>Going to need more info to figure this one out
> >
> >Thanks for the patch, here's the output:
> >enabling repair mode
> >Checking filesystem on /dev/mapper/crypt_sdd1
> >UUID: 024ba4d0-dacb-438d-9f1b-eeb34083fe49
> >checking extents
> >wtf, parent 575708413952 <<<<<<
> >cmds-check.c:4488: add_data_backref: Assertion `back->bytes != max_size` failed.
> >/tmp/btrfs[0x8066a83]
> >/tmp/btrfs[0x8066ab4]
> >/tmp/btrfs[0x80679d8]
> >/tmp/btrfs[0x806b4f2]
> >/tmp/btrfs[0x806b9ea]
> >/tmp/btrfs[0x806c5f9]
> >/tmp/btrfs(cmd_check+0x1088)[0x806ee26]
> >/tmp/btrfs(main+0x153)[0x80557d6]
> >/lib/i386-linux-gnu/libc.so.6(__libc_start_main+0xf3)[0xb75a54d3]
> >/tmp/btrfs[0x80557fc]
> >
> >Marc
> >
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Home page: http://marc.merlins.org/                         | PGP 1024R/763BE901