I've had a couple of crashes of Mac amuleweb. This is one of them.
(gdb) bt
#0 0x2d36921c in small_malloc_from_free_list (szone=0x1800000, msize=1) at /SourceCache/Libc_debug-320/Libc-320/gen/scalable_malloc.c:1710
#1 0x2d369614 in small_malloc_should_clear (szone=0x1800000, msize=1, cleared_requested=0) at /SourceCache/Libc_debug-320/Libc-320/gen/scalable_malloc.c:1797
#2 0x2d369a8c in szone_malloc_should_clear (szone=0x1800000, size=512, cleared_requested=0) at /SourceCache/Libc_debug-320/Libc-320/gen/scalable_malloc.c:2522
#3 0x2d1f1e8c in szone_malloc (szone=0x1800000, size=512) at /SourceCache/Libc_debug-320/Libc-320/gen/scalable_malloc.c:2537
#4 0x2d1f1040 in malloc_zone_malloc (zone=0x1800000, size=512) at /SourceCache/Libc_debug-320/Libc-320/gen/malloc.c:299
#5 0x2d1f158c in malloc (size=512) at /SourceCache/Libc_debug-320/Libc-320/gen/malloc.c:489
#6 0x0035dc38 in wxStringBase::AllocBuffer(unsigned long) ()
#7 0x0035db9c in wxStringBase::InitWith(char const*, unsigned long, unsigned long) ()
#8 0x0035fdc8 in wxString::Mid(unsigned long, unsigned long) const ()
#9 0x000330cc in CWebSocket::OnRequestReceived(char*, unsigned, char*, unsigned) ()
#10 0x00032a04 in CWCThread::Entry() ()
#11 0x0037971c in wxThreadInternal::MacThreadStart(void*) ()
#12 0x2a5a77a0 in PrivateMPEntryPoint (inArg=0x507e90) at Multiprocessing/MPTasks.c:461
#13 0x2d22413c in _pthread_body (self=0x1817c00) at /SourceCache/Libc_debug-320/Libc-320/pthreads/pthread.c:632
(gdb) bt full
#0 0x2d36921c in small_malloc_from_free_list (szone=0x1800000, msize=1) at /SourceCache/Libc_debug-320/Libc-320/gen/scalable_malloc.c:1710
next = (free_list_t *) 0xd0ff
grain = 0 '\0'
bitmap = 3537266875
ptr = (void *) 0x187b400
this_msize = 2
free_list = (free_list_t **) 0x18000f0
limit = (free_list_t **) 0x180016c
#1 0x2d369614 in small_malloc_should_clear (szone=0x1800000, msize=1, cleared_requested=0) at /SourceCache/Libc_debug-320/Libc-320/gen/scalable_malloc.c:1797
locked = 1
ptr = (void *) 0x181f402
#2 0x2d369a8c in szone_malloc_should_clear (szone=0x1800000, size=512, cleared_requested=0) at /SourceCache/Libc_debug-320/Libc-320/gen/scalable_malloc.c:2522
msize = 1
ptr = (void *) 0x41f6d1b
#3 0x2d1f1e8c in szone_malloc (szone=0x1800000, size=512) at /SourceCache/Libc_debug-320/Libc-320/gen/scalable_malloc.c:2537
ptr = (void *) 0xf0182ad0
#4 0x2d1f1040 in malloc_zone_malloc (zone=0x1800000, size=512) at /SourceCache/Libc_debug-320/Libc-320/gen/malloc.c:299
ptr = (void *) 0x41f6d1b
#5 0x2d1f158c in malloc (size=512) at /SourceCache/Libc_debug-320/Libc-320/gen/malloc.c:489
retval = (void *) 0xf0182b60
#6 0x0035dc38 in wxStringBase::AllocBuffer(unsigned long) ()
No symbol table info available.
#7 0x0035db9c in wxStringBase::InitWith(char const*, unsigned long, unsigned long) ()
No symbol table info available.
#8 0x0035fdc8 in wxString::Mid(unsigned long, unsigned long) const ()
No symbol table info available.
#9 0x000330cc in CWebSocket::OnRequestReceived(char*, unsigned, char*, unsigned) ()
No symbol table info available.
#10 0x00032a04 in CWCThread::Entry() ()
No symbol table info available.
#11 0x0037971c in wxThreadInternal::MacThreadStart(void*) ()
No symbol table info available.
#12 0x2a5a77a0 in PrivateMPEntryPoint (inArg=0x507e90) at Multiprocessing/MPTasks.c:461
status = 1
#13 0x2d22413c in _pthread_body (self=0x1817c00) at /SourceCache/Libc_debug-320/Libc-320/pthreads/pthread.c:632
No locals.