From: gdavis@mvista.com (George G. Davis)
To: linux-arm-kernel@lists.infradead.org
Subject: SMP soft lockup on smp_call_function_many when doing flush_tlb_page
Date: Wed, 30 Mar 2011 21:05:21 -0400 [thread overview]
Message-ID: <20110331010521.GL13080@mvista.com> (raw)
In-Reply-To: <AANLkTin2JMW0FkEW5v-FMDN4826xo6s+B6heK5QSn_b=@mail.gmail.com>
Hi,
On Wed, Mar 30, 2011 at 10:17:38AM +0200, saeed bishara wrote:
> On Wed, Mar 30, 2011 at 7:18 AM, George G. Davis <gdavis@mvista.com> wrote:
> > Hi,
> >
> > On Wed, Mar 09, 2011 at 03:50:48PM +0000, Catalin Marinas wrote:
> >> On Wed, 2011-03-09 at 15:22 +0000, saeed bishara wrote:
> >> > > Did you get a chance to try this patch?
> >> > yes, it works fine
> >>
> >> Thanks for trying. I'll add a commit log and post.
> >
> > Based on your comments here [1], it looks like your fix for this [2] is
> > superseeded by [3] which is already applied [4]. ?Can you confirm?
> [4] fixed the bug that I reported here. and since my kernel based on
> 2.6.35.9, I backported several patches besides to that one, here is
> the list::
> 0001-generic-ipi-Fix-deadlock-in-__smp_call_function_sing.patch
> 0002-kernel-smp.c-fix-smp_call_function_many-SMP-race.patch
> 0003-kernel-smp.c-consolidate-writes-in-smp_call_function.patch
> 0004-call_function_many-fix-list-delete-vs-add-race.patch
> 0005-call_function_many-add-missing-ordering.patch
> 0006-smp_call_function_many-handle-concurrent-clearing-of.patch
>
> with those patches I don't see IPI lockup issue any more.
> saeed
Thanks!
--
Regards,
George
> >
> > TIA!
> >
> > --
> > Regards,
> > George
> >
> > [1] https://lkml.org/lkml/2011/3/15/429
> > [2] https://lkml.org/lkml/2011/3/15/296
> > [3] https://lkml.org/lkml/2011/3/15/315
> > [4] http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=723aae2
> >>
> >> --
> >> Catalin
> >>
> >>
> >>
> >> _______________________________________________
> >> linux-arm-kernel mailing list
> >> linux-arm-kernel at lists.infradead.org
> >> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
> >
next prev parent reply other threads:[~2011-03-31 1:05 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-08 9:53 SMP soft lockup on smp_call_function_many when doing flush_tlb_page saeed bishara
2011-03-08 13:33 ` Catalin Marinas
2011-03-08 15:28 ` saeed bishara
2011-03-08 16:49 ` saeed bishara
2011-03-08 16:59 ` Catalin Marinas
2011-03-09 15:22 ` saeed bishara
2011-03-09 15:50 ` Catalin Marinas
2011-03-30 5:18 ` George G. Davis
2011-03-30 8:17 ` saeed bishara
2011-03-31 1:05 ` George G. Davis [this message]
2011-03-30 8:37 ` Catalin Marinas
2011-03-31 1:05 ` George G. Davis
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