Messages in this thread | | | Subject | Re: 2.6.18-rt1 | From | Lee Revell <> | Date | Sat, 30 Sep 2006 14:25:55 -0400 |
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On Sat, 2006-09-30 at 23:48 +0530, Dipankar Sarma wrote: > On Sat, Sep 30, 2006 at 02:06:04PM -0400, Lee Revell wrote: > > I got this Oops with -rt3, looks RCU related. Apologies in advance if > > it's already known. > > > > Unable to handle kernel NULL pointer dereference at 0000000000000000 RIP: > > [<ffffffff802aafa7>] __rcu_read_unlock+0x2e/0x82 > > PGD 46a3067 PUD 4e27067 PMD 0 > > Oops: 0002 [1] PREEMPT SMP > > CPU 1 > > I see a very similar crash while running rcutorture on 2.6.18-mm1 and > my rcu patchset that has rcupreempt stuff rom -rt. I don't see this > while running on 2.6.18-rc3, but then rc3 had an older version > of rcutorture. I am working on narrowing it down. > > The following script reproduces the problem quickly (within > a couple of minutes) in my 4-cpu x86_64 system -
Let me know if you want more info such as config. I was compiling a kernel when the Oops occurred. System is Athlon X2.
Lee
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