Oops at xfs_bmbt_get_startoff in SLES 10 2.6.16

[Felix Blyakher]

On Apr 21, 2009, at 9:32 PM, Eric Sandeen wrote:

> Felix Blyakher wrote:
>> On Apr 21, 2009, at 9:16 PM, Eric Sandeen wrote:
>>
>>> Kevin Jamieson wrote:
>>>> On Thu, March 12, 2009 4:13 pm, Kevin Jamieson wrote:
>>>>> On Thu, March 12, 2009 12:23 pm, Eric Sandeen wrote:
>>>>>
>>>>>> For SLES that usually is the best route...
>>>>>>
>>>>>> However, http://oss.sgi.com/archives/xfs/2009-02/msg00220.html
>>>>>> looks
>>>>>> applicable... don't think it ever got merged though.
>>>>>>
>>>>>> perhaps you could test it?
>>>>> Thanks, Eric. I will test Lachlan's patch on our system.
>>>> To follow this up, since applying the patch from the above thread
>>>> there
>>>> have been no re-occurrences of the issue on our test servers over
>>>> the past
>>>> month.
>>> And you hit it pretty reliably before, right?  Sounds like we need  
>>> to
>>> give that a pretty strong eyeball and get it merged, perhaps.
>>
>> I was looking at this patch too.
>> But I could never reproduce the problem, even with Lachlan's test
>> program. Kevin, any idea what kind of io load triggered this problem?
>> The patch looks right, but I really want to prove the problem
>> exists, and the patch addresses it.
>>
>> Felix
>>
>
> FWIW I can't reproduce either, with the stated commandline.
>
> Should try it with a 1k blocksize, though - maybe Lachlan tested 4k on
> 16k page ia64?

That's what I've tested on.

Felix