From: Eric Dumazet <eric.dumazet@gmail.com>
To: Matt Turner <mattst88@gmail.com>
Cc: Eric Dumazet <edumazet@google.com>,
"linux-mips@linux-mips.org" <linux-mips@linux-mips.org>,
linux-nfs@vger.kernel.org, Paolo Abeni <pabeni@redhat.com>,
Hannes Frederic Sowa <hannes@stressinduktion.org>,
"Peter Zijlstra (Intel)" <peterz@infradead.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@kernel.org>,
Manuel Lauss <manuel.lauss@gmail.com>,
LKML <linux-kernel@vger.kernel.org>,
netdev <netdev@vger.kernel.org>
Subject: Re: NFS corruption, fixed by echo 1 > /proc/sys/vm/drop_caches -- next debugging steps?
Date: Sat, 09 Dec 2017 13:37:02 -0800 [thread overview]
Message-ID: <1512855422.25033.34.camel@gmail.com> (raw)
In-Reply-To: <CAEdQ38H+jUF3OXpe13Vfm=QZE3iHa=B7PpXkpbek1PnY2E1u5w@mail.gmail.com>
On Sat, 2017-12-09 at 13:03 -0800, Matt Turner wrote:
> On Fri, Dec 8, 2017 at 1:16 PM, Eric Dumazet <eric.dumazet@gmail.com>
> wrote:
> > On Fri, 2017-12-08 at 12:26 -0800, Matt Turner wrote:
> > >
> > > Thanks for the quick reply!
> > >
> > > I tried the patch on top of master, but unfortunately the
> > > corruption
> > > still occurs.
> >
> > You might try replacing in sbdma_add_rcvbuffer()
> >
> > sb_new = netdev_alloc_skb(dev, size);
> >
> > by
> >
> > sb_new = alloc_skb(size, GFP_ATOMIC);
> >
> > Maybe the device does not like having a frame spanning 2 pages.
>
> No such luck. I also gave changing the page size from 16K to 4K a
> shot
> without success.
If your hist is SMP, could you try running it with one CPU only ?
Sorry, I have no more ideas :/
prev parent reply other threads:[~2017-12-09 21:37 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-13 1:43 NFS corruption, fixed by echo 1 > /proc/sys/vm/drop_caches -- next debugging steps? Matt Turner
2017-03-13 9:47 ` James Hogan
2017-03-13 17:17 ` Matt Turner
2017-03-15 9:25 ` Ralf Baechle
2017-12-08 7:00 ` Matt Turner
2017-12-08 7:54 ` Matt Turner
2017-12-08 13:42 ` Eric Dumazet
2017-12-08 13:52 ` Eric Dumazet
2017-12-08 20:26 ` Matt Turner
2017-12-08 21:16 ` Eric Dumazet
2017-12-09 21:03 ` Matt Turner
2017-12-09 21:37 ` Eric Dumazet [this message]
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