Re: ipc,sem: sysv semaphore scalability

[Rik van Riel]

On 03/25/2013 10:00 AM, Rik van Riel wrote:
> On 03/25/2013 09:47 AM, Emmanuel Benisty wrote:
> > On Mon, Mar 25, 2013 at 12:10 AM, Linus Torvalds
> > <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
> > > And you never see this problem without Rik's patches?
> >
> > No, never.
> >
> > > Could you bisect
> > > *which* patch it starts with? Are the first four ones ok (the moving
> > > of the locking around, but without the fine-grained ones), for
> > > example?
> >
> > With the first four patches only, I got some X server freeze (just
> > tried once).
>
> Could you try booting with panic=1 so the kernel panics on the first
> oops?

Sorry that should be "oops=panic"

> Maybe that way (if we are lucky) we will be able to capture the first
> oops, and maybe get an idea of what causes the problem.

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