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Re: [Qemu-devel] [PULL 00/12] ppc-for-2.12 queue 20180108

From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PULL 00/12] ppc-for-2.12 queue 20180108
Date: Wed, 10 Jan 2018 14:33:41 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.5.0

On 10/01/2018 02:55, David Gibson wrote:
> On Tue, Jan 09, 2018 at 03:15:25PM +0000, Peter Maydell wrote:
>> On 9 January 2018 at 12:16, David Gibson <address@hidden> wrote:
>>> Thanks.  Even if you can identify which patch it is and we can
>>> postpone that one would be a bug help.
>> Bisection blames this one:
>> address@hidden (1):
>>       target-ppc: optimize cmp translation
> Aha!  Ok, I'll pull that one out until we find a fix.

Richard posted one, it's an ARM32 backend bug.

> [snip]
>> (This is a build for arm32, running in a chroot on an aarch64
>> box, non-debug build.)
> Ah.. but since it's a chroot, still an aarch64 cpu behind it all.

No, it's running 32-bit ARM code.


> think the machines I managed to borrow were all much older slower
> really truly arm32 machines, which I guess didn't show the problem.
> Oh.. and probably a debug (default) build as well.

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