From: Andi Kleen <ak@suse.de>
To: "Jan Beulich" <jbeulich@novell.com>
Subject: Re: dwarf2 stuck Re: lockdep warning in i2c_transfer() with dibx000 DVB - input tree merge plans?
Date: Mon, 16 Oct 2006 16:17:51 +0200
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Cc: "Jiri Kosina" <jikos@jikos.cz>, linux-kernel@vger.kernel.org
References: <Pine.LNX.4.64.0610121521390.29022@twin.jikos.cz> <Pine.LNX.4.64.0610161506570.29022@twin.jikos.cz> <4533A5A5.76E4.0078.0@novell.com>
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On Monday 16 October 2006 15:30, Jan Beulich wrote:
> >>> Jiri Kosina <jikos@jikos.cz> 16.10.06 15:08 >>>
> >On Mon, 16 Oct 2006, Jan Beulich wrote:
> >
> >> >Yes, it was compiled using gcc 4.0.2, specifically gcc (GCC) 4.0.2 
> >> >20051125 (Red Hat 4.0.2-8). I can easily reproduce this, what 
> >> >additional information do you need? Or should I just try with newer 
> >> >gcc?
> >> Two possible paths:
> >> a) Try with gcc 4.1.x.
> >
> >Will do probably later today.
> >
> >> b) Send me the offending .o (presumably the one containing 
> >> dibusb_dib3000mc_tuner_attach)
> >
> >You can get it from http://www.jikos.cz/jikos/junk/dibusb-common.o 
> 
> Yes, unfortunately this is another instance of gcc 4.0 generating bad
> unwind data when optimizing and not accumulating outgoing args.
> Andi - did you already create a patch implementing Michael's suggestion?

You mean using -maccumulate-outgoing-args ? Not yet.

I guess we can do it unconditionally for all gccs on both i386
and x86-64, right?

-Andi
-
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