tcort@candcc0 ~ $ gdb a.out
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This GDB was configured as "alpha-unknown-linux-gnu"...Using host libthread_db library "/lib/libthread_db.so.1".
(gdb) run
Starting program: /home/tcort/a.out
[Thread debugging using libthread_db enabled]
[New Thread 2199023409920 (LWP 28438)]
mul_add(3, 5, 2) = 17
*** glibc detected *** free(): invalid next size (fast): 0x00000001200146f0 ***
Program received signal SIGABRT, Aborted.
[Switching to Thread 2199023409920 (LWP 28438)]
0x00000200000db880 in raise () from /lib/libc.so.6.1
(gdb) bt
#0 0x00000200000db880 in raise () from /lib/libc.so.6.1
#1 0x00000200000dd17c in abort () from /lib/libc.so.6.1
#2 0x00000200001144b0 in __fsetlocking () from /lib/libc.so.6.1
#3 0x000002000011b610 in malloc_usable_size () from /lib/libc.so.6.1
#4 0x000002000011c2f0 in free () from /lib/libc.so.6.1
#5 0x000002000004a48c in jit_free (ptr=0x6f16) at jit-alloc.c:124
#6 0x000002000004decc in _jit_cache_destroy (cache=0x1200145d0)
at jit-cache.c:654
#7 0x0000020000050668 in jit_context_destroy (context=0x120012010)
at jit-context.c:112
#8 0x0000000120000e80 in main ()
(gdb)