Re: [patch] x86: fix broken flush_tlb_others_ipi()

From: Ingo Molnar
Date: Wed Jan 14 2009 - 02:51:46 EST



* Suresh Siddha <suresh.b.siddha@xxxxxxxxx> wrote:

> This commit broke flush_tlb_others_ipi() causing boot hangs on a
> 16 logical cpu system.
>
> > commit 4595f9620cda8a1e973588e743cf5f8436dd20c6
> > Author: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
> > Date: Sat Jan 10 21:58:09 2009 -0800
> >
> > x86: change flush_tlb_others to take a const struct cpumask
>
> This change resulted in sending the invalidate tlb vector to the
> sender itself causing the hang. flush_tlb_others_ipi() should exclude
> the sender itself from the destination list.
>
> Signed-off-by: Suresh Siddha <suresh.b.siddha@xxxxxxxxx>

applied to tip/cpus4096, thanks Suresh!

Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/