Re: bio linked list corruption.

[Philipp Hahn]

Hello,

Am 19.10.2016 um 01:42 schrieb Chris Mason:
> On Tue, Oct 18, 2016 at 04:39:22PM -0700, Linus Torvalds wrote:
>> On Tue, Oct 18, 2016 at 4:31 PM, Chris Mason <clm@xxxxxx> wrote:
>>>
>>> Jens, not sure if you saw the whole thread.  This has triggered bad page
>>> state errors, and also corrupted a btrfs list.  It hurts me to say,
>>> but it
>>> might not actually be your fault.
>>
>> Where is that thread, and what is the "this" that triggers problems?
>>
>> Looking at the "->mq_list" users, I'm not seeing any changes there in
>> the last year or so. So I don't think it's the list itself.
> 
> Seems to be the whole thing:
> 
> http://www.gossamer-threads.com/lists/linux/kernel/2545792
> 
> My guess is xattr, but I don't have a good reason for that.

Nearly a month ago I reported also a "list_add corruption", but with 4.1.6:
<http://marc.info/?l=linux-kernel&m=147508265316854&w=2>

That server rungs Samba4, which also is a heavy user of xattr.

Might be that it is related.

Philipp Hahn