From: Joseph Qi <joseph.qi@huawei.com>
To: ocfs2-devel@oss.oracle.com
Subject: [Ocfs2-devel] A deadlock when system do not has sufficient memory
Date: Mon, 25 Aug 2014 13:41:45 +0800 [thread overview]
Message-ID: <53FACC99.8070701@huawei.com> (raw)
In-Reply-To: <CAEeiSHWiPZHKC5gwLTuuZAm3xUeGT48BLNs97qdUgZSMM+AFZQ@mail.gmail.com>
On 2014/8/25 13:00, Sunil Mushran wrote:
> Functions in dlmdomain.c are only triggered during mount. So they cannot trigger the deadlock as described above in this thread. I would leave them as is.
>
It is possible if mounts multiple volumes on each node.
> On Aug 24, 2014 7:06 PM, "Xue jiufei" <xuejiufei at huawei.com <mailto:xuejiufei@huawei.com>> wrote:
>
> Hi Sunil,
> On 2014/8/23 1:08, Sunil Mushran wrote:
> > Allocs made via GFP_NOFS, by definition, should not trigger any reclaim from the fs.
> > So this situation should never arise. That's why all allocs in the dlm have NOFS.
> >
> Thanks for your reply. I haven't noticed that before. So I think
> dlm_query_region_handler() should also use GFP_NOFS instead of GFP_KERNEL,
> right?
>
> Thanks.
> Xuejiufei
> >
> > _______________________________________________
> > Ocfs2-devel mailing list
> > Ocfs2-devel at oss.oracle.com <mailto:Ocfs2-devel@oss.oracle.com>
> > https://oss.oracle.com/mailman/listinfo/ocfs2-devel
> >
>
>
>
>
> _______________________________________________
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>
next prev parent reply other threads:[~2014-08-25 5:41 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-20 3:57 [Ocfs2-devel] A deadlock when system do not has sufficient memory Xue jiufei
2014-08-22 8:30 ` Xue jiufei
2014-08-22 17:08 ` Sunil Mushran
2014-08-25 2:05 ` Xue jiufei
2014-08-25 5:00 ` Sunil Mushran
2014-08-25 5:41 ` Joseph Qi [this message]
2014-08-25 5:45 ` Sunil Mushran
2014-08-25 6:05 ` Joseph Qi
2014-08-25 17:13 ` Sunil Mushran
2014-08-27 1:57 ` Xue jiufei
2014-08-28 1:16 ` Sunil Mushran
2014-08-25 1:50 ` Junxiao Bi
2014-08-28 8:16 ` Xue jiufei
2014-08-29 3:26 ` Junxiao Bi
2014-08-29 7:22 ` Xue jiufei
2014-08-29 7:30 ` Junxiao Bi
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