Re: Null pointer dereference while at ACL limit on v5 XFS

Mark Tinguely
2014-06-23T22:13:13Z

On 06/23/14 17:08, Mark Tinguely wrote:
> On 06/23/14 16:48, Michael L. Semon wrote:
>> At the ACL limit of v5-superblock XFS--with a directory filled with
>> both default
>> and access ACL entries--I'm getting a null pointer dereference on x86
>> after
>> creating the directory successfully.
>>
>> Disclaimer: There's some current issues on 32-bit x86 that, for
>> instance, can
>> make badblocks see phantom bad blocks on a read test. My apologies in
>> advance
>> if this turns out to be a false alarm bug report.
>>
>> My first encounter with this issue involved fsstress. Here's part of a
>> `crash`
>> session from the fsstress run.
>>
>> root@oldsvrhw:/mnt/crashdump/xfs-fsstress-max-acl-2# crash vmlinux
>> System.map vmcore
>> crash 7.0.4
...
>> Thanks!
>>
>> Michael
>>
>
> Michael, do you have the vmcore dump for this or was this just from the
> messages.
>
> Thanks.
>
> --Mark.

ummm, duh me. you were running crash ...

Can I look at the core?

--Mark.