Re: [Qemu-devel] [PULL 00/20] Tracing patches

[Peter Maydell]

On 7 October 2016 at 11:09, Stefan Hajnoczi <address@hidden> wrote:
> The following changes since commit e902754e3d0890945ddcc1b33748ed73762ddb8d:
>
>   Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.8-20161006' 
> into staging (2016-10-06 13:34:00 +0100)
>
> are available in the git repository at:
>
>   git://github.com/stefanha/qemu.git tags/tracing-pull-request
>
> for you to fetch changes up to bcdc1363dcb9adb5f7ea016a4d0b41f0357c8182:
>
>   trace: Add missing execution mode of guest events (2016-10-07 09:17:49 
> +0100)
>
> ----------------------------------------------------------------
>
> ----------------------------------------------------------------

This makes all the linux-user binaries dump core on startup:

$ gdb --args 
/home/petmay01/linaro/qemu-for-merges/build/all-linux-static/x86_64-linux-user/qemu-x86_64
/bin/ls
(gdb) r
Starting program:
/home/petmay01/linaro/qemu-for-merges/build/all-linux-static/x86_64-linux-user/qemu-x86_64
/bin/ls
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7ffff7ffa700 (LWP 14965)]

Thread 1 "qemu-x86_64" received signal SIGABRT, Aborted.
0x000000006019fbe8 in raise ()
(gdb) bt
#0  0x000000006019fbe8 in raise ()
#1  0x00000000601a030a in abort ()
#2  0x00000000600bdd02 in bitmap_new (nbits=0)
    at /home/petmay01/linaro/qemu-for-merges/include/qemu/bitmap.h:99
#3  0x00000000600be99f in cpu_common_initfn (obj=0x625f6340)
    at /home/petmay01/linaro/qemu-for-merges/qom/cpu.c:360
#4  0x00000000600bfe97 in object_init_with_type (obj=0x625f6340, ti=0x625eb9a0)
    at /home/petmay01/linaro/qemu-for-merges/qom/object.c:339
#5  0x00000000600bfe79 in object_init_with_type (obj=0x625f6340, ti=0x625e2d80)
    at /home/petmay01/linaro/qemu-for-merges/qom/object.c:335
#6  0x00000000600bfe79 in object_init_with_type (obj=0x625f6340, ti=0x625e78d0)
    at /home/petmay01/linaro/qemu-for-merges/qom/object.c:335
#7  0x00000000600c00aa in object_initialize_with_type
(data=0x625f6340, size=38416, type=0x625e78d0)
    at /home/petmay01/linaro/qemu-for-merges/qom/object.c:370
#8  0x00000000600c0508 in object_new_with_type (type=0x625e78d0)
    at /home/petmay01/linaro/qemu-for-merges/qom/object.c:478
#9  0x00000000600c0542 in object_new (typename=0x625e2fe0 "qemu64-x86_64-cpu")
    at /home/petmay01/linaro/qemu-for-merges/qom/object.c:488
#10 0x00000000600be03f in cpu_generic_init (typename=0x6025ad54
"x86_64-cpu", cpu_model=0x60247ca5 "qemu64")
    at /home/petmay01/linaro/qemu-for-merges/qom/cpu.c:76
#11 0x0000000060089438 in cpu_x86_init (cpu_model=0x60247ca5 "qemu64")
    at /home/petmay01/linaro/qemu-for-merges/target-i386/cpu.c:2266
#12 0x0000000060031031 in main (argc=2, argv=0x7fffffffe4b8,
envp=0x7fffffffe4d0)
    at /home/petmay01/linaro/qemu-for-merges/linux-user/main.c:4253

thanks
-- PMM