Re: [Xen-devel] The segmentfault when using xl create domU

[Julien Grall <julien.grall@xxxxxxxxxx>]

On 04/16/2014 04:50 PM, Wei Huang wrote:
> On 04/16/2014 04:21 AM, Ian Campbell wrote:
>> On Tue, 2014-04-15 at 17:07 -0500, Wei Huang wrote:
>>>> It's a compiler bug. For some reasons gcc doesn't generate the right
>>>> assembly
>>>> when -O1 is specified on the command line. Which version of gcc do
>>>> you use(4.7.*?)?
>>>> Which distribution are you using?
>>>> Can you also call disas the crash and copy the output?
>>>>
>>>> Gcc 4.8 doesn't seem to be affected.
>>>>
>>>> FYI, I got this output from 4.7 with Linaro Ubuntu raring (gcc 4.7.3).
>>>> [...]
>>> I saw the same thing on my system and ack'ed that this is compiler
>>> related. My compiler is 4.7.3. I was able to fix it with the
>>> following hack:
>>
>> Are you also using the Linaro compiler by any chance?
> I think so. Here is the GCC --version info:
> arm-linux-gnueabihf-gcc (Ubuntu/Linaro 4.7.3-1ubuntu1) 4.7.3

Linaro as shipped a new version of GCC 4.7 (based on 4.7.4) a couple of
days ago.

They don't plan to release another version of 4.7. So I don't think it's
useful to report the bug. Unless it's also happen with upstream GCC.

Regards,

-- 
Julien Grall

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