boundschecking

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The problem is that you did not use -D_REENTRANT when
compiling the file that contains the function main. When
this is done the bounds-checking code will become thread safe.
The -D_REENTRANT option MUST be used anyway when compiling
programs that use threads.

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Here is a GDB backtrace if it helps:
/usr/src/gcc-3.4.3/gcc/bounds/lib/functions.c:179:Internal
error: too many function context pops.

Program received signal SIGABRT, Aborted.
[Switching to Thread -1097602128 (LWP 32337)]
0x00b6cc32 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
(gdb) bt full
#0 0x00b6cc32 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
No symbol table info available.
#1 0x00bab989 in raise () from /lib/tls/libc.so.6
No symbol table info available.
#2 0x00bad342 in abort () from /lib/tls/libc.so.6
No symbol table info available.
#3 0x08070810 in __bounds_internal_error (message=0x0,
filename=0x6 <Address 0x6 out of bounds>, line=32337)
at /usr/src/gcc-3.4.3/gcc/bounds/lib/error.c:215
No locals.
#4 0x0807233f in __bounds_pop_function
(name=0x8086c47 "qm_wait", nesting_nr=6)
at /usr/src/gcc-3.4.3/gcc/bounds/lib/functions.c:215
old_mask = {__val = {4222451713, 134813144,
134813144, 134813144, 134813144, 134813169, 134813655,
134813144, 134813655,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 144018560, 4, 121, 134769649,
134649867, 144018560, 3197364448, 3197364616,
134720166,
144002192, 12, 1, 134772600}}
#5 0x0805819c in qm_wait (qi=0x8958c80, tmout=60) at
queuemanager.c:122
now = {tv_sec = 1108218642, tv_usec = 22848}
timeout = {tv_sec = 1108218702, tv_nsec = 22848}
#6 0x08059525 in init_messqueue (arg=0x8958c80) at
messagequeue.c:73
ret = 0
messq = (myqueues *) 0x8958c80
candie = 0
mqi = (messqitm *) 0x0
#7 0x0011e7fc in start_thread () from /lib/tls/libpthread.so.0
No symbol table info available.
#8 0x00c5faba in clone () from /lib/tls/libc.so.6
No symbol table info available.