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[Qemu-devel] Re: gcc 4.4 miscompiling cpu_exec() ?

From: Paolo Bonzini
Subject: [Qemu-devel] Re: gcc 4.4 miscompiling cpu_exec() ?
Date: Tue, 23 Feb 2010 19:18:34 +0100
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20100120 Fedora/3.0.1-1.fc12 Lightning/1.0b2pre Thunderbird/3.0.1

On 02/23/2010 07:17 PM, Jay Foad wrote:
Can you try this patch:

It works! Thanks.

and if it works, possibly only each hunk of it?

Just the first hunk: works!
Just the second hunk: doesn't work

Can you explain why the volatile is necessary? Or is it working around
a problem with the compiler?

I don't know exactly without checking, but these were the main changes introduced by my 24ebf5f31a178051cff1a4aab5ba621037191577 patch. I'll send it out shortly.


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