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Re: [Qemu-devel] [Qemu-ppc] [PULL 09/29] target/ppc: introduce get_cpu_v


From: Mark Cave-Ayland
Subject: Re: [Qemu-devel] [Qemu-ppc] [PULL 09/29] target/ppc: introduce get_cpu_vsr{l, h}() and set_cpu_vsr{l, h}() helpers for VSR register access
Date: Wed, 5 Jun 2019 07:32:49 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0

On 04/06/2019 22:23, Laurent Vivier wrote:

> This patch breaks something in the libcrypto.
> 
> I've been able to reproduce the problem with Fedora 29:
> 
> dnf install 'dnf-command(download)'
> dnf download --source coreutils-single
> rpm --verify coreutils-8.30-7.fc29.src.rpm
> error: coreutils-8.30-7.fc29.src.rpm: Header V3 RSA/SHA256 Signature, key ID 
> 429476b4: BAD
> error: coreutils-8.30-7.fc29.src.rpm: Header SHA256 digest: BAD (Expected 
> fa042669e74ac435bd5defaa8c2e4efe779a0329c24f2b6377591c53b38aa280 != 
> d6e22527412fafc4aa12882432d0d157e5427097710eeb2d5fce8fbc52a47be6)
> error: coreutils-8.30-7.fc29.src.rpm: not an rpm package (or package manifest)
> 
> See https://bugzilla.redhat.com/show_bug.cgi?id=1715017
> 
> I've tested with origin/master (47fbad45d47af8af784bb12a5719489edcd89b4c) and 
> all the 
> merged fixes for this patch don't fix this problem.
> 
> We should be able to reproduce it on Debian Sid too: it breaks ssh (this is 
> one of the rare binaries using libcrypto on debian).
> 
> I've been able to reproduce it with qemu linux-user if I enable 
> PPC_FEATURE2_VEC_CRYPTO in linux-user/elfload.c
> (git clone -b linux-user-ppc64-hwcap address@hidden:vivier/qemu.git).
> 
> To ease debugging, you can install a Fedora 29 chroot with something like:
> 
> curl -o container.tar.xz 
> http://download-ib01.fedoraproject.org/pub/fedora-secondary/releases/29/Container/ppc64le/images/Fedora-Container-Base-29-1.2.ppc64le.tar.xz
> tar Jxvf container.tar.xz '*/layer.tar'
> mkdir -p chroot/ppc64le/29
> cd chroot/ppc64le/29
> tar xf $OLDPWD/*/layer.tar
> cd -
> cp ~/qemu/ppc64le-linux-user/qemu-ppc64le chroot/ppc64le/29/
> [use "configure --target-list=ppc64le-linux-user --static --disable-tools" 
> and don't forget to run scripts/qemu-binfmt-conf.sh]

One of Anton's VSX patches hasn't landed in master yet and is still queued in
ppc-for-4.1: "target/ppc: Fix lxvw4x, lxvh8x and lxvb16x".

Can you try David's ppc-for-4.1 branch first and let me know if that solves the
issue? If not, I'll take a look at it later in the week when I have a bit more 
time.


ATB,

Mark.



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