From: Segher Boessenkool <segher@kernel.crashing.org>
To: Bernhard Rosenkraenzer <bero@arklinux.org>
Cc: Avi Kivity <avi@qumranet.com>,
linux-kernel@vger.kernel.org, akpm@osdl.org
Subject: Re: 2.6.19-rc5-mm1 fails to compile with gcc 4.2
Date: Sun, 12 Nov 2006 12:17:55 +0100 [thread overview]
Message-ID: <1BA58C04-16BE-4EEA-AD24-20C4089DA0BF@kernel.crashing.org> (raw)
In-Reply-To: <200611121005.58939.bero@arklinux.org>
>>> drivers/kvm/kvm_main.c: In function 'kvm_dev_ioctl_run':
>>> drivers/kvm/kvm_main.c:153: error: 'asm' operand has impossible
>>> constraints drivers/kvm/kvm_main.c:158: error: 'asm' operand has
>>> impossible constraints
>>
>> Smells like a gcc regression. Can you send .config?
>>
>> Or better yet, preprocessed source and full gcc command line (as
>> seen on
>> 'make V=1').
Just the function containing those lines (please mark which
lines they are) would do probably.
> It does look like a gcc bug -- -O0 makes it go away.
> Details at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29808
PR29808 is not a GCC bug, but invalid code.
Segher
next prev parent reply other threads:[~2006-11-12 11:18 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-11 22:34 Bernhard Rosenkraenzer
2006-11-12 8:22 ` Avi Kivity
2006-11-12 9:05 ` Bernhard Rosenkraenzer
2006-11-12 9:24 ` Avi Kivity
2006-11-12 13:36 ` Bernhard Rosenkraenzer
2006-11-12 13:43 ` Avi Kivity
2006-11-12 13:50 ` Bernhard Rosenkraenzer
2006-11-12 13:55 ` Avi Kivity
2006-11-12 14:13 ` Segher Boessenkool
2006-11-12 14:10 ` Segher Boessenkool
2006-11-12 11:17 ` Segher Boessenkool [this message]
2006-11-12 13:43 ` Bernhard Rosenkraenzer
2006-11-12 13:50 ` Avi Kivity
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