0xb78acd2b in js_GetStringBytes (rt=0xfffffff8, str=0x8087fb8) at jsstr.c:3157
3157        JS_ACQUIRE_LOCK(rt->deflatedStringCacheLock);
(gdb) bt
#0  0xb78acd2b in js_GetStringBytes (rt=0xfffffff8, str=0x8087fb8)
    at jsstr.c:3157
#1  0xb783d07b in JS_GetStringBytes (str=0x8087fb8) at jsapi.c:4551
#2  0x08074be1 in ?? ()