[Lustre-discuss] filter_grant_incoming()) LBUG in 1.8.1.1

Scott Barber scott at imemories.com
Fri Mar 26 07:43:12 PDT 2010


Thanks for your help. I'll watch the bug.

On Fri, Mar 26, 2010 at 1:29 AM, Cliff White <Cliff.White at sun.com> wrote:
> Scott Barber wrote:
>>
>> Background:
>> MDS and OSTs are all running CentOS 5.4 / x86_64 /
>> 2.6.18-128.7.1.el5_lustre.1.8.1.1
>> 2 types of clients
>>  - CentOS 5.4 / x86_64 / 2.6.18-128.7.1.el5_lustre.1.8.1.1
>>  - Ubuntu 8.04.1 / i686 / 2.6.22.19 patchless
>>
>> A few days ago one of the OSSs hit an LBUG. The syslog looked like:
>> http://pastie.org/887643
>>
>> I brought it back up by unmounting the OSTs, restarting the machine
>> and remounting the OSTs. The OST was just fine after that, but this
>> seemed to start a chain-reaction with other OSSs. I'd run into the
>> same LBUG and same call trace in the syslog on other OSSs. I kept
>> bringing them back up again and an hour later it would happen again -
>> interestingly never on the same OSS twice. It finally stopped when I
>> unmounted the MDS/MGS, rebooted the MDS server and them remounted it
>> again. We had no issues after that.... until this afternoon :(
>>
>> In researching the issue it looks as though it is bug #19338 which in
>> turn is a duplicate of #20278. It looks as though that bug isn't
>> slated for 1.8 at all. Am I reading that right? There's been no
>> testing that I could tell of the patch on 1.8.x so I'm leery of trying
>> to patch my servers. Is there something else that I can do? Any more
>> info you need?
>
> I've attached a 1.8.x version of the patch to 20278. Builds fine on rhel5.
>  Further tests are in the queue, but likely to be awhile running.
> I've also asked for landings/further inspection, you can follow progress in
> the bug.
> cliffw
>
>>
>>
>> Thanks for your help,
>> Scott Barber
>> Senior Systems Admin
>> iMemories.com
>> _______________________________________________
>> Lustre-discuss mailing list
>> Lustre-discuss at lists.lustre.org
>> http://lists.lustre.org/mailman/listinfo/lustre-discuss
>
>



More information about the lustre-discuss mailing list