[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [Bug 1781281] Re: qemu-ppc64le uncaught target signal 4 (Il
From: |
Luc |
Subject: |
[Qemu-devel] [Bug 1781281] Re: qemu-ppc64le uncaught target signal 4 (Illegal instruction) |
Date: |
Thu, 12 Jul 2018 13:36:55 -0000 |
Thanks for the reply.
I tried with the -cpu power9 and it works!
However, I tried with -cpu power8 and it does not work. I tried the code
on a real power8 and it works. So -cpu power8 should work
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1781281
Title:
qemu-ppc64le uncaught target signal 4 (Illegal instruction)
Status in QEMU:
New
Bug description:
qemu-ppc64le version 2.12.0
host machine: x86_64 Arch Linux
I'm currently working on VSX support in libVPX, I'm using qemu to
test, on line 723 of vpx_dsp/ppc/loopfilter_vsx.c, when I change the
vec_sub to vec_subs I get:
qemu: uncaught target signal 4 (Illegal instruction) - core dumped
Thread 1 "qemu-ppc64le" received signal SIGILL, Illegal instruction.
0x00007ffff66d1bf6 in sigsuspend () from /usr/lib/libc.so.6
(gdb) bt
#0 0x00007ffff66d1bf6 in sigsuspend () from /usr/lib/libc.so.6
#1 0x000055555567ee68 in ?? ()
#2 0x000055555567fd18 in ?? ()
#3 0x00005555556805ef in process_pending_signals ()
#4 0x0000555555661e69 in cpu_loop ()
#5 0x000055555561fd72 in main ()
This can be reproduced by downloading this patch (patchset 1):
https://chromium-review.googlesource.com/c/webm/libvpx/+/1134034
and running
qemu-ppc64le -L /home/ltrudeau/x-tools/powerpc64le-unknown-linux-gnu
/powerpc64le-unknown-linux-gnu/sysroot/ ./test_libvpx
--gtest_also_run_disabled_tests "--gtest_filter=VSX/*Loop*/*"
I don't observe any issues when running the code on a POWER9 machine.
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1781281/+subscriptions