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From: Nix <nix@esperi.org.uk>
To: "Tantilov, Emil S" <emil.s.tantilov@intel.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"e1000-devel@lists.sourceforge.net" 
	<e1000-devel@lists.sourceforge.net>
Subject: Re: [E1000-devel] [in-tree drivers] freezing e1000e in 2.6.31 (SMP only? MSI? PAUSE!)
Date: Tue, 10 Nov 2009 00:08:47 +0000	[thread overview]
Message-ID: <87eio7meb4.fsf_-_@spindle.srvr.nix> (raw)
In-Reply-To: <87ljihnh81.fsf@spindle.srvr.nix> (nix@esperi.org.uk's message of "Sun, 08 Nov 2009 15:55:58 +0000")

On 8 Nov 2009, nix@esperi.org.uk told this:

> On 6 Nov 2009, Emil S. Tantilov verbalised:
>> Also try disabling Tx pause frames:
>> ethtool -A fastnet tx off autoneg off
>
> Trying that now. No freezes yet, but I haven't really given it long
> enough.

I just did a large number of kernel-build-and-installs with frame
pointers over NFS over the errant link. No problems at all.

I think we can say this fixes it (works around it?)

Does this implicate the gigabit switch I'm talking to, or is it a kernel
bug? (It looks like the cheap Realteks at the other ends of this link
don't support pause frames at all: at least ethtool -a gives
-EOPNOTSUPP, but maybe they simply can't be turned off... hm, r8169.c
vaguely suggests that it supports them but can't turn them off without
source hacking.)

  reply	other threads:[~2009-11-10  0:09 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-11-06 20:21 [in-tree drivers] freezing e1000e in 2.6.31 (SMP only? MSI?) Nix
2009-11-06 23:58 ` [E1000-devel] " Tantilov, Emil S
2009-11-08 15:55   ` Nix
2009-11-10  0:08     ` Nix [this message]
2009-11-10  1:19       ` [E1000-devel] [in-tree drivers] freezing e1000e in 2.6.31 (SMP only? MSI? PAUSE!) Allan, Bruce W

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