netdev - Re: intermittant petabyte usage reported with broadcom nic

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Message-ID: <20070417120148.GB5510@disjunkt.com>
Date:	Tue, 17 Apr 2007 14:01:48 +0200
From:	Jean-Daniel Pauget <jd@...junkt.com>
To:	CaT <cat@....com.au>
Cc:	Michael Chan <mchan@...adcom.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: intermittant petabyte usage reported with broadcom nic

On Tue, Apr 17, 2007 at 09:43:48AM +1000, CaT wrote:
> On Mon, Apr 16, 2007 at 12:10:51PM -0700, Michael Chan wrote:
> > On Sat, 2007-04-14 at 17:20 -0700, Michael Chan wrote:
> > 
> > Here's the debug patch for x86 only that will change the statistics
> > memory block to read-only.  If the kernel is corrupting it, you should
> > get a page fault that will crash the system.  If you continue to see
> > bogus counters, it is definitely a firmware or hardware problem.  Please
> > try it and let me know.  Thanks.
[.../...]
> Perhaps Jean-Daniel, who is also experiencing this problem and seemingly
> more frequently then I, has a box that he could run your patch on. I
> think we both run pretty-much the same hardware (Dell [12]950s).
    Dell 1950/2950 indeed...

    if there is any way to catch that writing without crashing the system 
    (even to the price of some slowness) I can test it. if not, I can't 
    because all my available targets are remote administrated and involved 
    with production processes.
    if luckilly one of them gets free, I'll to apply the latest patch you'd 
    provide me. I may also try it one day I'm close to those machines, so 
    keep me in the list of up to date patches.

-- 
    Jean-Daniel Pauget

    Tél: +33 (0)2 33 17 20 16
    2, rue André PELCA
    50580 Denneville-Plage
    France

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