Messages in this thread | | | Date | Wed, 17 Jun 2009 13:39:52 -0700 (PDT) | From | David Rientjes <> | Subject | Re: 2.6.29.1: nfsd: page allocation failure - nfsd or kernel problem? |
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On Thu, 18 Jun 2009, Michael Tokarev wrote:
> > http://bugzilla.kernel.org/show_bug.cgi?id=13518 > > Does not look similar. > > I repeated the issue here. The slab which is growing here is buffer_head. > It's growing slowly -- right now, after ~5 minutes of constant writes over > nfs, its size is 428423 objects, growing at about 5000 objects/minute rate. > When stopping writing, the cache shrinks slowly back to an acceptable > size, probably when the data gets actually written to disk. >
Not sure if you're referring to the bugzilla entry or Justin's reported issue. Justin's issue is actually allocating a skbuff_head_cache slab while the system is oom.
> It looks like we need a bug entry for this :) > > I'll re-try 2.6.30 hopefully tomorrow. >
You should get the same page allocation failure warning with 2.6.30. You may want to try my patch in http://lkml.org/lkml/2009/6/17/437 which suppresses the warnings since, as you previously mentioned, there are no side effects and the failure is easily recoverable.
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