----- Original Message -----
> From: "Wanlong Gao" <[email protected]>
> To: "Jan Stancek" <[email protected]>
> Cc: [email protected]
> Sent: Monday, 15 April, 2013 10:19:15 AM
> Subject: Re: [LTP] [PATCH v2] sendmsg testcase for 
> ded34e0fe8fe8c2d595bfa30626654e4b87621e0
> 
> On 04/15/2013 03:58 PM, Jan Stancek wrote:
> > reproducer for:
> > BUG: unable to handle kernel NULL pointer dereference at 0000000000000250
> > 
> > fixed in 3.9.0-0.rc5:
> >   commit ded34e0fe8fe8c2d595bfa30626654e4b87621e0
> >   Author: Paul Moore <[email protected]>
> >   Date:   Mon Mar 25 03:18:33 2013 +0000
> >     unix: fix a race condition in unix_release()
> > 
> > This reproducer should be able to trigger it easily on 4+ CPU systems
> > just within couple of seconds.
> 
> I didn't get panic on my v3.9-rc4 system by this test case.

I double checked if I got that -rc right, and that looks OK:
$ git tag --contains ded34e0fe8fe8c2d595bfa30626654e4b87621e0
v3.9-rc5
v3.9-rc6
v3.9-rc7

There is a switch "-s" for how many seconds it should run. Can you try to run
it for couple of minutes, if that makes any difference?

If not, then I'm afraid it's not as reproducible as I thought it would be.

Regards,
Jan


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