Re: [Qemu-devel] [TestDays] info mtree abort

[Andreas Färber]

Am 12.11.2011 08:26, schrieb Stefan Weil:
> Am 12.11.2011 03:05, schrieb Andreas Färber:
>> On current qemu.git master for qemu-system-x86_64 I observe crashes
>> similar to this one when running info mtree on the SDL monitor console:
>>
>> *** glibc detected ***
>> /home/andreas/QEMU/qemu-rl78/rl78-softmmu/qemu-system-rl78: free():
>> invalid pointer: 0x4545454545454545 ***
>>
>> #0 0x00007ffff6308d95 in raise () from /lib64/libc.so.6
>> #1 0x00007ffff630a2ab in abort () from /lib64/libc.so.6
>> #2 0x00007ffff6342ece in __libc_message () from /lib64/libc.so.6
>> #3 0x00007ffff6348c06 in malloc_printerr () from /lib64/libc.so.6
>> #4 0x00000000004e9024 in mtree_print_mr (mon_printf=0x4ef720
>> <monitor_printf>, f=0xf89b10, mr=<optimized out>, level=0, base=0,
>> alias_print_queue=0x7fffffffd610)
>> at /home/andreas/QEMU/qemu-rl78/memory.c:1405
>> #5 0x00000000004ec8b6 in mtree_info (mon_printf=0x4ef720
>> <monitor_printf>, f=0xf89b10) at
>> /home/andreas/QEMU/qemu-rl78/memory.c:1417
> 
> 
> qemu-system-i386 also has the same problem. It does not crash
> (so most users won't notice anything going wrong), but Valgrind
> shows the bug, too:

Stefan, thanks for sharing your valgrind command line.

Alex didn't notice the missing initialization for qemu-system-s390x
virtio either, so I guess my system (openSUSE 12.1 RC2) must have some
stricter default setting...

Andreas

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