linux-kernel - Re: Linux 2.6.22 released

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Message-ID: <4694CE86.4040209@martinorr.name>
Date:	Wed, 11 Jul 2007 13:35:18 +0100
From:	Martin Orr <martin@...tinorr.name>
To:	Stefano Rivoir <s.rivoir@....it>
CC:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Linux 2.6.22 released

On 11/07/07 06:38, Stefano Rivoir wrote:
> Linus Torvalds wrote:
> > On Tue, 10 Jul 2007, Stefano Rivoir wrote:
> >> 2.6.22 hangs at boot on my box. Here attached a original dmesg from 2.6.21,
> >> and a copy of it where it stops on 2.6.22 (I can't attach the original 2.6.22
> >> dmesg because it's not logged to disk yet); it actually stops right after
> >> 'init' launches.
> Ok, the guilty bit is gcc: in my box, compiling kernel with gcc 4.2.x
> (which is installed on my debian/sid) turns into a hang (in init,
> seemingly, maybe not even in kernel itself), while gcc-4.1 is allright.

I have the same problem, also on Debian sid on amd64.  I can report that the
Debian version 4.2-20070627-1 of gcc works, 4.2-20070707-1 does not.

Also the hang occurs in udevsettle; if you wait long enough (60 seconds?)
then udevsettle times out and the boot continues (but doesn't get very far
with an almost empty /dev).

For a few more data points, I tried building my kernel with the new compiler
and s/=m/=y/ on the .config and then disabling modules.  This didn't help.
I have also tried mixing modules and vmlinuz from different gcc versions;
whether the hang occurs or not depends only on the version used to compile
the vmlinuz.

-- 
Martin Orr

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