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Date: Sat, 30 Jan 2010 15:47:15 +0100
Message-ID: <761ea48b1001300647m62b1068dh1b4cd38deb49dd98@mail.gmail.com>
Subject: Re: [Qemu-devel] [BUG] qemu-x86_64 crash when running bntest (was:
	[PATCH] Porting TCG to alpha platform)
From: Laurent Desnogues <laurent.desnogues@gmail.com>
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To: Stefan Weil <weil@mail.berlios.de>
Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, qemu-devel@nongnu.org

On Sat, Jan 30, 2010 at 10:30 AM, Stefan Weil <weil@mail.berlios.de> wrote:
> Laurent Desnogues schrieb:
>> On Sat, Jan 30, 2010 at 12:04 AM, Stefan Weil <weil@mail.berlios.de>
>> wrote:
>> [...]
>>> that was a good suggestion. bntest raises a segmentation fault
>>> (NULL pointer, p == 0, see below) with qemu-x86_64 on a x86_64 host.
>>
>> Compile bntest statically and it should work.
>>
>> x86_64 user mode is completely broken for dynamically
>> linked programs.
>>
>>
>> Laurent
>>
>
> A statically linked bntest results in a crash, too.

OK, I found the issue.  It's vsyscall.  You should use the patch
I sent to this list a few months ago.


Laurent