Re: [PATCH v3 00/13] exec: Rework around CPUState user fields (part 2)

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

Hi Ilya,

On 30/4/24 19:55, Ilya Leoshkevich wrote:
> On Tue, Apr 30, 2024 at 02:27:54PM +0200, Philippe Mathieu-Daudé wrote:
>> Missing WASM testing by Ilya (branch available at
>> https://gitlab.com/philmd/qemu/-/commits/tcg_flush_jmp_cache)
> 
> Hmm, it dies very early now:
> 
>    # gdb --args ./qemu-s390x -L /usr/s390x-linux-gnu /build/wasmtime/target/s390x-unknown-linux-gnu/debug/deps/component_fuzz_util-d10a3a6b4ad8af47
> 
>    Thread 1 "qemu-s390x" received signal SIGSEGV, Segmentation fault.
>    0x000055555559b718 in cpu_common_realizefn (dev=0x5555557c28c0, errp=<optimized out>) at ../home/iii/myrepos/qemu/hw/core/cpu-common.c:217
>    217             cpu->accel->plugin_state = qemu_plugin_create_vcpu_state();
> 
>    (gdb) bt
>    #0  0x000055555559b718 in cpu_common_realizefn (dev=0x5555557c28c0, errp=<optimized out>) at ../home/iii/myrepos/qemu/hw/core/cpu-common.c:217
>    #1  0x000055555559f59a in s390_cpu_realizefn (dev=0x5555557c28c0, errp=0x7fffffffe1a0) at ../home/iii/myrepos/qemu/target/s390x/cpu.c:284
>    #2  0x000055555563f76b in device_set_realized (obj=<optimized out>, value=<optimized out>, errp=0x7fffffffe2e0) at ../home/iii/myrepos/qemu/hw/core/qdev.c:510
>    #3  0x000055555564363d in property_set_bool (obj=0x5555557c28c0, v=<optimized out>, name=<optimized out>, opaque=0x5555557a9140, errp=0x7fffffffe2e0) at ../home/iii/myrepos/qemu/qom/object.c:2362
>    #4  0x0000555555646b9b in object_property_set (obj=obj@entry=0x5555557c28c0, name=name@entry=0x5555556e8ae2 "realized", v=v@entry=0x5555557c6650, errp=errp@entry=0x7fffffffe2e0)
>        at ../home/iii/myrepos/qemu/qom/object.c:1471
>    #5  0x000055555564a43f in object_property_set_qobject (obj=obj@entry=0x5555557c28c0, name=name@entry=0x5555556e8ae2 "realized", value=value@entry=0x5555557a7a90, errp=errp@entry=0x7fffffffe2e0)
>        at ../home/iii/myrepos/qemu/qom/qom-qobject.c:28
>    #6  0x0000555555647204 in object_property_set_bool (obj=0x5555557c28c0, name=name@entry=0x5555556e8ae2 "realized", value=value@entry=true, errp=errp@entry=0x7fffffffe2e0)
>        at ../home/iii/myrepos/qemu/qom/object.c:1541
>    #7  0x000055555564025c in qdev_realize (dev=<optimized out>, bus=bus@entry=0x0, errp=errp@entry=0x7fffffffe2e0) at ../home/iii/myrepos/qemu/hw/core/qdev.c:291
>    #8  0x000055555559bbb4 in cpu_create (typename=<optimized out>) at ../home/iii/myrepos/qemu/hw/core/cpu-common.c:61
>    #9  0x000055555559a467 in main (argc=4, argv=0x7fffffffeaa8, envp=<optimized out>) at ../home/iii/myrepos/qemu/linux-user/main.c:811
> 
>    (gdb) p cpu
>    $1 = (CPUState *) 0x5555557c28c0
>    (gdb) p cpu->accel
>    $2 = (AccelCPUState *) 0x0
> 
> Configured with: '/home/iii/myrepos/qemu/configure' '--target-list=s390x-linux-user' '--disable-tools' '--disable-slirp' '--disable-fdt' '--disable-capstone' '--disable-docs'
> 
> If you don't see what can be wrong here right away, I can debug this.

Useful enough I guess, but I'll ask you to test again later.

Does it work without the last patch?

Is it possible to share component_fuzz_util-d10a3a6b4ad8af47?

Thanks for the testing,

Phil.