From: Michal Hocko <mhocko@suse.cz>
To: David Rientjes <rientjes@google.com>
Cc: akpm@linux-foundation.org, mm-commits@vger.kernel.org,
dave@linux.vnet.ibm.com, mgorman@suse.de, linux-mm@kvack.org,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: + mm-show_mem-suppress-page-counts-in-non-blockable-contexts.patch added to -mm tree
Date: Fri, 1 Mar 2013 11:23:55 +0100 [thread overview]
Message-ID: <20130301102355.GC21443@dhcp22.suse.cz> (raw)
In-Reply-To: <alpine.DEB.2.02.1303010213140.23298@chino.kir.corp.google.com>
On Fri 01-03-13 02:15:04, David Rientjes wrote:
> On Fri, 1 Mar 2013, Michal Hocko wrote:
>
> > I have already asked about it in the original thread but didn't get any
> > answer. How can we get a soft lockup when all implementations of show_mem
> > call touch_nmi_watchdog?
> >
>
> Feel free to do s/soft lockups/irqs being disabled for an extremely long
> time/.
OK, that sounds better. Sorry for being so persistent on this but soft
lockups tend to be a real issue for distribution kernels with
!CONFIG_PREEMPT so anything that fixes soft lockups raises a red flag.
Acked-by: Michal Hocko <mhocko@suse.cz>
--
Michal Hocko
SUSE Labs
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prev parent reply other threads:[~2013-03-01 10:23 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20130228231025.9F11A5A410E@corp2gmr1-2.hot.corp.google.com>
2013-03-01 9:57 ` Michal Hocko
2013-03-01 10:15 ` David Rientjes
2013-03-01 10:23 ` Michal Hocko [this message]
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