Messages in this thread | | | From | Michael Ellerman <> | Subject | Re: [PATCH v2 25/43] powerpc/32: Replace ASM exception exit by C exception exit from ppc64 | Date | Fri, 12 Mar 2021 10:26:02 +1100 |
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Christophe Leroy <christophe.leroy@csgroup.eu> writes: > Le 11/03/2021 à 14:46, Michael Ellerman a écrit : >> Christophe Leroy <christophe.leroy@csgroup.eu> writes: >>> This patch replaces the PPC32 ASM exception exit by C exception exit. >>> >>> Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> >>> --- >>> arch/powerpc/kernel/entry_32.S | 481 +++++++++----------------------- >>> arch/powerpc/kernel/interrupt.c | 4 + >>> 2 files changed, 132 insertions(+), 353 deletions(-) >> >> Bisect points to this breaking qemu mac99 for me, with pmac32_defconfig. >> >> I haven't had time to dig any deeper sorry. > > Embarrasing ...
Nah, these things happen.
> I don't get this problem on the 8xx (nohash/32) or the 83xx (book3s/32). > I don't get this problem with qemu mac99 when using my klibc-based initramfs. > > I managed to reproduce it with the rootfs.cpio that I got some time ago from linuxppc github Wiki.
OK.
I'm using the ppc-rootfs.cpio.gz from here:
https://github.com/linuxppc/ci-scripts/blob/master/root-disks/Makefile
And the boot script is:
https://github.com/linuxppc/ci-scripts/blob/master/scripts/boot/qemu-mac99
I've been meaning to write docs on how to use those scripts, but haven't got around to it.
There's nothing really special though it's just a wrapper around qemu -M mac99.
> I'll investigate it tomorrow.
Thanks.
cheers
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