Re: 2.6.17-rc5-mm1

[Martin Bligh <mbligh@mbligh.org>]

Andrew Morton wrote:
> "Martin J. Bligh" <mbligh@mbligh.org> wrote:
> 
>>Andrew Morton wrote:
>>
>>>Martin Bligh <mbligh@google.com> wrote:
>>>
>>>
>>>>The x86_65 panic in LTP has changed a bit. Looks more useful now.
>>>>Possibly just unrelated new stuff. Possibly we got lucky.
>>>
>>>What are you doing to make this happen?
>>
>>runalltests on LTP
>>
> 
> 
> We have to get to the bottom of this - there's a shadow over about 500
> patches and we don't know which.
> 
> iirc I tried to reproduce this a couple of weeks back and failed.
> 
> Are you able to narrow it down to a particular LTP test?  It was mtest01 or
> something like that?  Perhaps we can identify a particular command line
> which triggers the fault in a standalone fashion?

The LTP output is here:

http://test.kernel.org/abat/33803/debug/test.log.1

The last test run was memset01

 From a good test run (http://test.kernel.org/abat/33964/debug/test.log.1)
the one after memset01 is a second instance of the same.

Which is bad I suppose, in that it's likely an intermittent failure.
Perhaps you can try running memset01 in a loop? I don't have such a
box set up here right now, I'm afraid ... will see what I can do.

OTOH, it looks like this might be a different failure than the double
fault we saw in previous -mm's, which was consistently in mtest01, IIRC.

M.