Comment 2 for bug 909687

Well, this is a serious think, because it seems to also affect linux kernel internals with:

#90 0x00000000006842b0 in sp_main_gui (argc=1, argv=0x7fffffffdd28) at main.cpp:979
#91 0x00000000006697a8 in main (argc=1, argv=0x7fffffffdd28) at main.cpp:715
(gdb) continue
Continuing.

Emergency save activated!
continue
^C
Program received signal SIGINT, Interrupt.
__lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:93
93 2: movl %edx, %eax
(gdb) thread apply all bt

Thread 1 (Thread 0x7ffff7fa89a0 (LWP 8910)):
#0 __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:93
#1 0x00007ffff0e55d21 in _L_lock_9946 () at malloc.c:6487