From: Gary Hade <garyhade@us.ibm.com>
To: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Gary Hade <garyhade@us.ibm.com>,
mingo@elte.hu, mingo@redhat.com, x86@kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: BUG from text_poke() during CPU offlining
Date: Mon, 20 Apr 2009 12:47:23 -0700 [thread overview]
Message-ID: <20090420194723.GB7106@us.ibm.com> (raw)
In-Reply-To: <49DD073E.4050804@redhat.com>
On Wed, Apr 08, 2009 at 01:21:18PM -0700, Masami Hiramatsu wrote:
> Hi Gary,
>
> Gary Hade wrote:
> > I ran into the below BUG with 32-bit 2.6.30-rc1 while offlining
> > all of the offlineable CPUs. It happened when the last offlineable
> > CPUs was being offlined. The problem disappeared after I reverted
> > the following two patches.
> > - x86: implement atomic text_poke() via fixmap
> > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=78ff7fae04554b49d29226ed12536268c2500d1f
> > - x86: expand irq-off region in text_poke()
> > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=7cf49427042400d40bdc80b5c3399b6b5945afa8
>
> Hmm, this bug seems that the same bug I reported recently.
>
> http://lkml.org/lkml/2009/4/4/71
>
> I'm working on that.
Masami,
Just confirming that I can no longer reproduce the problem with
2.6.30-rc2 which includes your fix (http://lkml.org/lkml/2009/4/10/346).
>
> Thank you for reporting!
Thank you for fixing!
Gary
--
Gary Hade
System x Enablement
IBM Linux Technology Center
503-578-4503 IBM T/L: 775-4503
garyhade@us.ibm.com
http://www.ibm.com/linux/ltc
prev parent reply other threads:[~2009-04-20 19:47 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-08 20:11 BUG from text_poke() during CPU offlining Gary Hade
2009-04-08 20:21 ` Masami Hiramatsu
2009-04-20 19:47 ` Gary Hade [this message]
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