netdev - Re: [Bugme-new] [Bug 9990] New: tg3: eth0: The system may be re-ordering memory-mapped I/O cycles

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Message-ID: <20080214221234.GL856@gospo.usersys.redhat.com>
Date:	Thu, 14 Feb 2008 17:12:34 -0500
From:	Andy Gospodarek <andy@...yhouse.net>
To:	Michael Chan <mchan@...adcom.com>
Cc:	Andy Gospodarek <andy@...yhouse.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Matt Carlson <mcarlson@...adcom.com>,
	bugme-daemon@...zilla.kernel.org, netdev <netdev@...r.kernel.org>,
	ralf.hildebrandt@...rite.de
Subject: Re: [Bugme-new] [Bug 9990] New: tg3: eth0: The system may be re-ordering memory-mapped I/O cycles

On Thu, Feb 14, 2008 at 01:25:27PM -0800, Michael Chan wrote:
> On Thu, 2008-02-14 at 13:56 -0500, Andy Gospodarek wrote:
> > On Thu, Feb 14, 2008 at 10:24:25AM -0800, Andrew Morton wrote:
> > > On Thu, 14 Feb 2008 01:59:12 -0800 (PST) bugme-daemon@...zilla.kernel.org wrote:
> > > 
> > > > http://bugzilla.kernel.org/show_bug.cgi?id=9990
> > > > 
> > > >            Summary: tg3: eth0: The system may be re-ordering memory-mapped
> > > >                     I/O cycles
> > > >            Product: Drivers
> > > >            Version: 2.5
> > > >      KernelVersion: 2.6.24-git18
> > > >           Platform: All
> > > >         OS/Version: Linux
> > > >               Tree: Mainline
> > > >             Status: NEW
> > > >           Severity: normal
> > > >           Priority: P1
> > > >          Component: Network
> > > >         AssignedTo: jgarzik@...ox.com
> > > >         ReportedBy: ralf.hildebrandt@...rite.de
> > > > 
> > > > 
> > 
> > That should be a simple matter of adding the right pci-ids to
> > tg3_get_invariants -- hopefully Ralf will respond and we can get that
> > knocked out quickly.
> > 
> > 
> 
> It doesn't look like it was re-ordered IO.  If it was, it should have
> self-recovered without hitting the BUG().
> 

Good catch, Michael!  I missed that it paniced since I expect to see
some sort of backtrace when that happens.  We should try and get that
bridge added to the list though, to avoid repeated complaints that there
is a tg3 bug.

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