linux-kernel - Re: 2.6.29.1: nfsd: page allocation failure

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 17 Jun 2009 12:43:44 +0400
From:	Michael Tokarev <mjt@....msk.ru>
To:	Justin Piszcz <jpiszcz@...idpixels.com>
CC:	linux-kernel@...r.kernel.org
Subject: Re: 2.6.29.1: nfsd: page allocation failure - nfsd or kernel problem?

Michael Tokarev wrote:
> Justin Piszcz wrote:
>> Package: nfs-kernel-server
>> Version: 1.1.6-1
>> Distribution: Debian Testing
>> Architecture: 64-bit
>>
>> [6042655.755870] Pid: 7093, comm: nfsd Not tainted 2.6.29.1 #4
>> [6042655.755872] Call Trace:
>> [6042655.755874]  <IRQ>  [<ffffffff802850fd>]  
>> __alloc_pages_internal+0x3dd/0x4e0
>> [6042655.755885]  [<ffffffff802a738b>] cache_alloc_refill+0x2fb/0x570
>> [6042655.755887]  [<ffffffff802a76db>] __kmalloc+0xdb/0xe0
> 
> Was about to send this same report.
> 
> The thing continues servicing files it seems, but after some quite
> good delay.
> 
> This happens after massive amount of writes.  2.6.29.4 does the
> same thing.  Here it is, for comparison:
> 
> Jun 13 17:06:42 gnome vmunix: nfsd: page allocation failure. order:0, mode:0x20
> Jun 13 17:06:42 gnome vmunix: Call Trace:
> Jun 13 17:06:42 gnome vmunix:  <IRQ>  [<ffffffff8029559d>]  __alloc_pages_internal+0x3fd/0x500
> Jun 13 17:06:42 gnome vmunix:  [<ffffffff802bd4c3>]  cache_alloc_refill+0x313/0x5c0
> Jun 13 17:06:42 gnome vmunix:  [<ffffffff802bd873>] __kmalloc+0x103/0x110
> Jun 13 17:06:42 gnome vmunix:  [<ffffffff803dca6d>] __alloc_skb+0x6d/0x150
...

Justin, by the way, what's the underlying filesystem on the server?

I've seen this error on 2 machines already (both running 2.6.29.x x86-64),
and in both cases the filesystem on the server was xfs.  May this be
related somehow to http://bugzilla.kernel.org/show_bug.cgi?id=13375 ?
That one is different, but also about xfs and nfs.  I'm trying to
reproduce the problem on different filesystem...

/mjt
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/