netdev - Re: [BUG REPORT] kernel panic in tcp_sendpage() on null pointer dereference

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Message-ID: <1428451280.3625.6.camel@u64>
Date:	Tue, 07 Apr 2015 17:01:20 -0700
From:	Tuan Bui <tuan.d.bui@...com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	davem@...emloft.net, kuznet@....inr.ac.ru, jmorris@...ei.org,
	kaber@...sh.net, yoshfuji@...ux-ipv6.org,
	Jason Low <jason.low2@...com>,
	Aswin Chandramouleeswaran <aswin@...com>,
	Jun Li <jun.li@...com>, Haris Volos <haris.volos@...com>,
	Wai Long <waiman.long@...com>,
	hideaki.yoshifuji@...aclelinux.com, alan@...ux.intel.com,
	gw4pts@...pts.ampr.org
Subject: Re: [BUG REPORT] kernel panic in tcp_sendpage() on null pointer
 dereference

On Tue, 2015-04-07 at 16:33 -0700, Eric Dumazet wrote:
> On Tue, 2015-04-07 at 15:57 -0700, Tuan Bui wrote:
> > Hi all,
> > 
> > I am consistently seeing this kernel panic on a 16 sockets machine
> > running Spark PageRank workload using Docker.  I am running RHEL 7.0
> > stock kernel which is 3.10.0-123.el7.x86_64.
> 
> Have you tried a recent upstream kernel ?
> 

Yes I have tried an upstream v4.0-rc4 kernel.  I was still getting the
same kernel panic.




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