On 3/26/15 12:25 PM, Filipe David Manana wrote:
> On Thu, Mar 26, 2015 at 5:11 PM, Eric Sandeen <sand...@redhat.com> wrote:
>> On 3/26/15 9:48 AM, Chris Mason wrote:
>>> On Thu, Mar 26, 2015 at 10:11 AM, Eric Sandeen <sand...@redhat.com> wrote:
>>
>> ...
>>
>>>>>>  9c4f61f btrfs: simplify insert_orphan_item
>>>>>>
>>>>>>  made the whole path alloc/free go away.
>>>>
>>>> so I think there's no need for my patch; may as well just send the above 
>>>> to stable
>>>> and fix it that way, as long as 9c4f61f is deemed safe & correct, I think.
>>>
>>> Nice catch, thanks Eric. 9c4f61f looks fine for stable to me, but
>>> since he's already testing on stable, I talked Eric into giving it a
>>> pass through xfstests before I send it up.
>>>
>>> -chris
>>
>> ./check -g auto on 3.19-stable-ish seems fine-ish.  Certainly no worse w/ 
>> the patch added :)
>>
>> Failures: btrfs/010 btrfs/017 btrfs/078 generic/015 generic/039 generic/040 
>> generic/041 generic/065 generic/066 generic/071 generic/204
>> Failed 11 of 202 tests
> 
> Just curious, how did btrfs/078 fail? It isn't supposed to fail on
> 3.19.x nor 3.18.x.

This was the use after free / segfault / valgrind splat from userspace that I 
reported yesterday.

btrfs/078 104s ... 106s
*** glibc detected *** btrfs check: double free or corruption (fasttop): 
0x0000000000c12a40 ***
...
./common/rc: line 1932: 43334 Aborted                 btrfsck $device > 
$tmp.fsck 2>&1
_check_btrfs_filesystem: filesystem on /dev/sdc5 is inconsistent (see 
/mnt/test2/git/xfstests/results//btrfs/078.full)
Ran: btrfs/078
Failures: btrfs/078
Failed 1 of 1 tests

-Eric

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