Re: ipc,sem: sysv semaphore scalability

[Rik van Riel]

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?

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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