linux-kernel - Re: gcc "internal error" with 32-bit userspace, 64-bit kernel

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Date:	Mon, 26 May 2008 12:12:25 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Pierre Ossman <drzeus-list@...eus.cx>
cc:	LKML <linux-kernel@...r.kernel.org>, mingo@...hat.com,
	hpa@...or.com
Subject: Re: gcc "internal error" with 32-bit userspace, 64-bit kernel

On Sun, 25 May 2008, Pierre Ossman wrote:
> I'm having a bit of a problem with the x86 32-bit compatibility and I
> don't really know how to debug it.
> 
> The problem is that gcc fails some builds with "internal error" when
> I'm running a 32-bit userspace on a 64-bit kernel. The same test
> scenario with a 32-bit kernel works fine.
> 
> More specifically, I'm using Red Hat's mock tool on Fedora 9 to build
> packages. It sets up a chroot:ed environment where (as far as I can
> tell) everything is from the target system. Building for 32-bit Fedora
> 8 succeeds, but not Fedora 9 or RHEL 5.
> 
> Ideas on how to proceed? From what I've read, the 32-bit compatibility
> of the kernel should be 100%.

Just tried to reproduce that with git of today. Did not happen.

Which kernel version are you using ?

Thanks,
	tglx


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