Messages in this thread | | | Date | Wed, 31 Oct 2007 22:27:51 -0700 (PDT) | Subject | Re: [patch 0/7] [RFC] SLUB: Improve allocpercpu to reduce per cpu access overhead | From | David Miller <> |
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From: Christoph Lameter <clameter@sgi.com> Date: Wed, 31 Oct 2007 18:21:02 -0700 (PDT)
> On Wed, 31 Oct 2007, David Miller wrote: > > > From: Christoph Lameter <clameter@sgi.com> > > Date: Wed, 31 Oct 2007 18:12:11 -0700 (PDT) > > > > > On Wed, 31 Oct 2007, David Miller wrote: > > > > > > > All I can do now is bisect and then try to figure out what about the > > > > guilty change might cause the problem. > > > > > > Reverting the 7th patch should avoid using the sparc register that caches > > > the per cpu area offset? (I though so, does it?) > > > > Yes, that's right, %g5 holds the local cpu's per-cpu offset. > > And if I add the address of a percpu variable then I get to the variable > for this cpu right?
Right.
I bisected the crash down to:
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