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Re: [PULL 11/24] tcg/optimize: Use tcg_constant_internal with constant f

From: David Hildenbrand
Subject: Re: [PULL 11/24] tcg/optimize: Use tcg_constant_internal with constant folding
Date: Thu, 4 Feb 2021 08:55:54 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.5.0

On 04.02.21 07:41, David Hildenbrand wrote:

Am 04.02.2021 um 03:22 schrieb Richard Henderson <richard.henderson@linaro.org>:

On 2/1/21 10:45 AM, Richard W.M. Jones wrote:
This commit breaks running certain s390x binaries, at least
the "mount" command (or a library it uses) breaks.

More details in this BZ:


Could we revert this change since it seems to have caused other
problems as well?

Well, the other problems have been fixed (which were in fact latent, and could
have been produced by other means).  I would not like to sideline this patch
set indefinitely.

Could you give me some help extracting the relevant binaries?  "Begin with an
s390x host" is a non-starter.


I‘m planning on reproducing it today or tomorrow. Especially, finding a 
reproducer and trying reproducing on x86-64 host.

FWIW, on an x86-64 host, I can boot F32, Fedora rawhide, and RHEL8.X just fine from qcow2 (so "mount" seems to work in that environment as expected). Maybe it's really s390x-host specific? I'll give it a try.


David / dhildenb

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