On 02/25/2012 03:06 PM, Jan Kratochvil wrote:
> On Sat, 25 Feb 2012 16:39:55 +0100, Luis Gustavo wrote:
>> What kind of setup you're using?
>
> Fedora 17 x86_64.  It does not crash for me without -lmcheck but it does crash
> for gdbserver linked with -lmcheck, gdbserver dumps core then.
>
> With valgrind gdbserver prints:
>
> Invalid read of size 8
>     at: clear_gdb_breakpoint_conditions (mem-break.c:741)
>     by: delete_gdb_breakpoint_at (mem-break.c:715)
>     by: x86_remove_point (linux-x86-low.c:593)
>     by: linux_remove_point (linux-low.c:4463)
>     by: process_serial_event (server.c:3207)
>     by: handle_serial_event (server.c:3340)
>     by: handle_file_event (event-loop.c:489)
>     by: process_event (event-loop.c:244)
>     by: start_event_loop (event-loop.c:607)
>     by: main (server.c:2773)
>   Address 0x56242c8 is 8 bytes inside a block of size 16 free'd
>     at: free (vg_replace_malloc.c:427)
>     by: clear_gdb_breakpoint_conditions (mem-break.c:740)
>     by: delete_gdb_breakpoint_at (mem-break.c:715)
>     by: x86_remove_point (linux-x86-low.c:593)
>     by: linux_remove_point (linux-low.c:4463)
>     by: process_serial_event (server.c:3207)
>     by: handle_serial_event (server.c:3340)
>     by: handle_file_event (event-loop.c:489)
>     by: process_event (event-loop.c:244)
>     by: start_event_loop (event-loop.c:607)
>     by: main (server.c:2773)
>
>
> Thanks,
> Jan

Could please try the following on your side?

I reproduced the crash with -lmcheck and this patch fixed it for me.

Thanks,
Luis