From: Wolfgang Hoffmann <woho@woho.de>
Reply-To: woho@woho.de
To: Stephen Hemminger <shemminger@osdl.org>
Subject: Re: [PATCH] Revert sky2 to 0.13a
Date: Mon, 27 Feb 2006 17:38:38 +0100
User-Agent: KMail/1.8
Cc: pomac@vapor.com,
       Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>,
       Jeff Garzik <jeff@garzik.org>, netdev@vger.kernel.org,
       Pavel Volkovitskiy <int@mtx.ru>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
References: <4400FC28.1060705@gmx.net> <200602270003.46353.woho@woho.de> <20060227080042.0cf3f05d@localhost.localdomain>
In-Reply-To: <20060227080042.0cf3f05d@localhost.localdomain>
MIME-Version: 1.0
Content-Type: text/plain;
  charset="utf-8"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
Message-Id: <200602271738.38675.woho@woho.de>
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 1519
Lines: 40

On Monday 27 February 2006 17:00, Stephen Hemminger wrote:
> On Mon, 27 Feb 2006 00:03:45 +0100
>
> Wolfgang Hoffmann <woho@woho.de> wrote:
> > > Bisect done:
> > >
> > > 4d52b48b43d0d1d5959fa722ee0046e3542e5e1b is first bad commit
> > >     [PATCH] sky2: support msi interrupt (revised)
> > >
> > > Reverting this commit in git head seems to work, at least the driver
> > > builds and loads. Is that sane?
> > >
> > Ok, no hangs yet.
> >
> > Looking at the reverted commit, I wonder if modprobing sky2 with
> > disable_msi=1 is equivalent to reverting the commit?
>
> Could you try the current code with the disable_msi option?
> 	modprobe sky2 disable_msi=1
>
> That will run existing code without MSI.

2.6.16-rc5 with disable_msi=1 works for me, no hangs seen so far. I rsynced 80 
GB of data, thats about 5-10 times more than I typically need to reproduce a 
hang, so it seems to be solid. For the record: 2.6.16-rc5 with disable_msi=0 
does hang.

I have not seen the memory trashing others reported, with no version I tested 
so far. Maybe my scenario is not likely to trigger this, so I can't tell.

Unless a fix for msi is at hand, may I suggest for 2.6.16 to revert the msi 
commit or switch the default to disable_msi=1?

I've updated bugzilla #6084 accordingly.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/