Hi,

I just compiled qemu-system-ppc for Windows, using native msys2 on Windows
10 64 bit and the 64 bit mingw cross compiler on Fedora 31. Both create
executables that crash:

qemu-system-ppc.exe -L pc-bios -boot c -m 512 -M mac99,via=pmu -h
da C:\Mac-disks\9.2.img
Exception code=0xc0000005 flags=0x0 at 0x00007FFB2A602078. Access violation
- attempting to write data at address 0x00000000034C76EC

I bisected this down to:

d2cd29e30736afd4a1e8cac3cf4da360bbc65978 is the first bad commit
commit d2cd29e30736afd4a1e8cac3cf4da360bbc65978
Author: Richard Henderson <richard.hender...@linaro.org>
Date:   Tue Dec 17 13:47:37 2019 -1000

    configure: Do not force pie=no for non-x86

    PIE is supported on many other hosts besides x86.

    The default for non-x86 is now the same as x86: pie is used
    if supported, and may be forced via --enable/--disable-pie.

    The original commit (40d6444e91c) said:

      "Non-x86 are not changed, as they require TCG changes"

    but I think that's wrong -- there's nothing about PIE that
    affects TCG one way or another.

    Tested on aarch64 (bionic) and ppc64le (centos 7) hosts.

    Tested-by: Alex Bennée <alex.ben...@linaro.org>
    Reviewed-by: Alex Bennée <alex.ben...@linaro.org>
    Reviewed-by: Philippe Mathieu-Daudé <phi...@redhat.com>
    Signed-off-by: Richard Henderson <richard.hender...@linaro.org>

Please note that I tried again after applying patch
https://patchwork.ozlabs.org/patch/1265368/ However, this has not solved my
issue.

Best,
Howard

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