qemu-user-arm 4.0.0-rc1 no longer produces any crashes for me.
Huge thanks.
** Changed in: qemu
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1821430
Title:
qemu-user-arm (4.0.0-rc0) crashes
Status in QEMU:
Fix Released
Bug description:
I'm using qemu-user-arm for crosscompilation needs, usually via a wrapper.
qemu-user-arm (4.0.0-rc0) crashes with SIGILL on at least 2 instructions:
first case (sadly I don't have more data handy, can reproduce at a later time
if needed):
(gdb) x/i $pc
=> 0xfffce314: vseleq.f64 d0, d17, d0
second case (llvm-config):
qemu cmdline:
qemu-arm -strace -cpu max -r 5.0.0 -L /home/asavah/kross/build/rpi3/rootfs -E
LD_LIBRARY_PATH=/home/asavah/kross/build/rpi3/rootfs/usr/bin:/home/asavah/kross/build/rpi3/rootfs/usr/lib
/home/asavah/kross/build/rpi3/rootfs/usr/bin/llvm-config --shared-mode
--- SIGILL {si_signo=SIGILL, si_code=2, si_addr=0xf9f89f80} ---
qemu: uncaught target signal 4 (Illegal instruction) - core dumped
output from gdb(arm) attached to qemu-user-arm
Program received signal SIGILL, Illegal instruction.
0xf9f77f80 in ?? ()
(gdb) bt
#0 0xf9f77f80 in ?? ()
#1 0xfffd796c in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
(gdb) x/i $pc
=> 0xf9f77f80: vrintm.f64 d18, d18
The very same binaries when run with qemu-user-arm 3.1.0 (both from ubuntu
19.04 package and self built)
work flawlessly.
This is clearly a regression.
Please fix before releasing 4.0.0.
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