From: Michal Hocko <mhocko@suse.cz>
To: CAI Qian <caiqian@redhat.com>
Cc: linux-mm <linux-mm@kvack.org>,
Andrew Morton <akpm@linux-foundation.org>,
Nishanth Aravamudan <nacc@us.ibm.com>
Subject: Re: [RFC] /sys/kernel/mm/hugepages/hugepages-1048576kB/nr_overcommit_hugepages
Date: Wed, 5 Jan 2011 10:51:20 +0100 [thread overview]
Message-ID: <20110105095120.GB21349@tiehlicka.suse.cz> (raw)
In-Reply-To: <666501532.135624.1294217656273.JavaMail.root@zmail06.collab.prod.int.phx2.redhat.com>
On Wed 05-01-11 03:54:16, CAI Qian wrote:
>
> > OK, this explains the bogus value because hugetlb_overcommit_handler
> > doesn't check the return value of proc_doulongvec_minmax which fails
> > for
> > "\n" string which you are writing to the file so we end up setting a
> > random value from the stack. The following patch should fix this:
> >
> > Btw. what did you want to achieve by this command?
> Just to do some testing for robustness. :)
OK, you hit the nail ;)
I have just noticed I forgot to add your Reported-by: tag and I guess
this is also a stable material. I will repost the patch once Andrew says
he is going to take it.
Thanks
>
> CAI Qian
>
> --
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--
Michal Hocko
L3 team
SUSE LINUX s.r.o.
Lihovarska 1060/12
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To unsubscribe, send a message with 'unsubscribe linux-mm' in
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Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2011-01-05 9:51 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1060163918.101411.1293793346203.JavaMail.root@zmail06.collab.prod.int.phx2.redhat.com>
2010-12-31 11:08 ` CAI Qian
2011-01-04 9:56 ` Michal Hocko
2011-01-04 10:21 ` CAI Qian
2011-01-04 10:52 ` Michal Hocko
2011-01-05 4:52 ` CAI Qian
2011-01-05 8:43 ` Michal Hocko
2011-01-05 8:54 ` CAI Qian
2011-01-05 9:51 ` Michal Hocko [this message]
2011-01-05 15:36 ` CAI Qian
2011-01-05 15:59 ` Michal Hocko
2011-01-05 16:42 ` CAI Qian
2011-01-05 16:44 ` Michal Hocko
2011-01-05 17:00 ` CAI Qian
2011-01-05 20:59 ` Andrew Morton
2011-01-06 10:04 ` PATCH: hugetlb: handle NODEMASK_ALLOC failure correctly Michal Hocko
2011-01-06 20:38 ` Andrew Morton
2011-01-06 22:23 ` Michal Hocko
2011-01-04 17:21 ` [RFC] /sys/kernel/mm/hugepages/hugepages-1048576kB/nr_overcommit_hugepages Eric B Munson
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