Re: percpu related boot crash on x86 (was: Linux 2.6.38-rc1)

From: Ingo Molnar
Date: Wed Jan 19 2011 - 18:12:37 EST



* Ingo Molnar <mingo@xxxxxxx> wrote:

> Btw., based on Peter's suggestion i tried the limit-bumping hack below - but it
> did not help, the crash still triggers on 5%-10% of all randconfig bootups.

I'm now running tests with MAXSMP forcibly disabled - and there are no crashes after
69 randconfig iteration. Before it would crash within 10 iterations.

So it seems the MAXSMP sizing tests triggers a new percpu regression.

Thanks,

Ingo
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