From: Avi Kivity <avi@redhat.com>
To: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: guillaume.thouvenin@ext.bull.net, linux-kernel@vger.kernel.org
Subject: Re: [2.6.30-rc8 KVM] gcc 3.3 dies at emulate_2op_cl().
Date: Sun, 07 Jun 2009 12:40:50 +0300 [thread overview]
Message-ID: <4A2B8B22.3020602@redhat.com> (raw)
In-Reply-To: <200906071839.DFB51529.JFHLOFtMFOSVQO@I-love.SAKURA.ne.jp>
Tetsuo Handa wrote:
> Avi Kivity wrote:
>
>> What if you change "rm" in the patch to "m"?
>>
> It still fails.
>
> __asm__ __volatile__ ( \
> _PRE_EFLAGS("0", "5", "2") \
> _op _suffix " %4,%1 \n" \
> _POST_EFLAGS("0", "5", "2") \
> : "=m" (_eflags), "+m" (_dstv), "=&r" (_tmp) \
> : "c" (_clv) , "r" (_srcv), "i" (EFLAGS_MASK) \
> );
>
I can eliminate _tmp by using lahf/sahf, but it's not going to be a
trivial patch.
--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
next prev parent reply other threads:[~2009-06-07 9:41 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-05 5:39 [2.6.30-rc8 KVM] gcc 3.3 dies at emulate_2op_cl() Tetsuo Handa
2009-06-07 6:24 ` Avi Kivity
2009-06-07 7:38 ` Tetsuo Handa
2009-06-07 8:29 ` Avi Kivity
2009-06-07 8:47 ` Tetsuo Handa
2009-06-07 9:01 ` Avi Kivity
2009-06-07 9:39 ` Tetsuo Handa
2009-06-07 9:40 ` Avi Kivity [this message]
2009-06-07 10:00 ` Tetsuo Handa
2009-06-07 10:03 ` Avi Kivity
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