Re: ipc,sem: sysv semaphore scalability

[Rik van Riel]

On 03/25/2013 11:20 AM, Emmanuel Benisty wrote:
> On Mon, Mar 25, 2013 at 9:03 PM, Rik van Riel <riel@xxxxxxxxxxx> wrote:
> > > > 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.
>
> Sorry Rik, I get all kind of weird behaviors (wireless dies, compiling
> gets stuck and is impossible to kill, can't kill X) with the 4
> patches+oops=panic but no trace. Here after is 7+1 patches with
> oops=panic boot: http://i.imgur.com/1jep1qx.jpg

This may be a stupid question, but you re-compile and re-install
the kernel modules every time you changed the kernel?

The behaviour you report with just the first four patches is so
random, it sounds almost like a mismatched data structure between
compiles...

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