(gdb) r
`/Users/bfleis/src/li/kln/build/Debug/module.node' has changed; re-reading symbols.
Starting program: /Users/bfleis/bin/node-debug
Reading symbols for shared libraries . done

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x0000000000000000
[Switching to process 4401 thread 0x1703]
0x000000010012664e in v8::internal::Isolate::Current () at /Users/bfleis/src/node/deps/v8/src/isolate.h:51
51        asm("movq %%gs:(%1,%2,8), %0;"
(gdb) bt
#0  0x000000010012664e in v8::internal::Isolate::Current () at /Users/bfleis/src/node/deps/v8/src/isolate.h:51
#1  0x000000010012664e in v8::String::NewSymbol (data=0x101e80d80 "#topic", length=-1) at ../deps/v8/src/api.cc:5076
#2  0x0000000100f823b8 in Module::Producer::_drain_cb (_ign=0x100a11dd0, ctx=0x100a11710, topic=0x101e80d80 "#topic", partition=0) at ../src/producer.cc:61
#3  0x0000000100f8501f in _timer_cb (watcher=0x100a11e90, status=0) at ../src/mock.cc:136
#4  0x000000010005174c in uv__run_timers (loop=0x100a11fa0) at ../deps/uv/src/unix/timer.c:131
#5  0x0000000100042dfa in uv__run (loop=0x100a11fa0) at ../deps/uv/src/unix/core.c:254
#6  0x0000000100042db7 in uv_run (loop=0x100a11fa0) at ../deps/uv/src/unix/core.c:265#7  0x0000000100f845b1 in _run_sleeper_thread (args=0x100a11dd0) at ../src/mock.cc:70#8  0x00007fff86fd9742 in _pthread_start ()
#9  0x00007fff86fc6181 in thread_start ()(gdb) up
#1  0x000000010012664e in v8::String::NewSymbol (data=0x101e80d80 "#topic", length=-1) at ../deps/v8/src/api.cc:5076
51        asm("movq %%gs:(%1,%2,8), %0;"
(gdb) up
#2  0x0000000100f823b8 in Module::Producer::_drain_cb (_ign=0x100a11dd0, ctx=0x100a11710, topic=0x101e80d80 "#topic", partition=0) at ../src/producer.cc:61
61          argv[0] = String::NewSymbol(topic);
(gdb) x/8c topic
0x101e80d80:    35 '#'  116 't' 111 'o' 112 'p' 105 'i' 99 'c'  0 '\0'  0 '\0'
(gdb) down
#1  0x000000010012664e in v8::String::NewSymbol (data=0x101e80d80 "#topic", length=-1) at ../deps/v8/src/api.cc:5076
51        asm("movq %%gs:(%1,%2,8), %0;"
(gdb) x/8c data
0x101e80d80:    35 '#'  116 't' 111 'o' 112 'p' 105 'i' 99 'c'  0 '\0'  0 '\0'
(gdb)