I've now ran the core dumps through gdb to get backtraces for them all in case
somebody else has any insight into the causes:
**cyclecollector.core**
> gdb ./tests/gc/cyclecollector cyclecollector.core
Reading symbols from ./tests/gc/cyclecollector...
(No debugging symbols found in ./tests/gc/cyclecollector)
[New process 1]
Core was generated by `cyclecollector'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x000074b6c8e0acad in pthread_attr_get_np () from
/usr/lib/libpthread.so.1
(gdb) bt
#0 0x000074b6c8e0acad in pthread_attr_get_np () from
/usr/lib/libpthread.so.1
#1 0x000074b6c8e0b107 in pthread_getattr_np () from
/usr/lib/libpthread.so.1
#2 0x000074b6c920e4c2 in GC_get_main_stack_base () from
/usr/pkg/lib/libgc.so.1
#3 0x000074b6c92178b5 in GC_init () from /usr/pkg/lib/libgc.so.1
#4 0x0000000000402a6a in systemInit000 ()
#5 0x0000000000403266 in NimMain ()
#6 0x0000000000403567 in main ()
Run
**cycleleak.core**
> gdb ./tests/gc/cycleleak cycleleak.core
Reading symbols from ./tests/gc/cycleleak...
(No debugging symbols found in ./tests/gc/cycleleak)
[New process 1]
Core was generated by `cycleleak'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x00007f231f00acad in pthread_attr_get_np () from
/usr/lib/libpthread.so.1
(gdb) bt
#0 0x00007f231f00acad in pthread_attr_get_np () from
/usr/lib/libpthread.so.1
#1 0x00007f231f00b107 in pthread_getattr_np () from
/usr/lib/libpthread.so.1
#2 0x00007f231f40e4c2 in GC_get_main_stack_base () from
/usr/pkg/lib/libgc.so.1
#3 0x00007f231f4178b5 in GC_init () from /usr/pkg/lib/libgc.so.1
#4 0x0000000000402d50 in systemInit000 ()
#5 0x0000000000403966 in NimMain ()
#6 0x0000000000403e7b in main ()
Run
**gcbench.core**
> gdb ./tests/gc/gcbench gcbench.core
Reading symbols from ./tests/gc/gcbench...
(No debugging symbols found in ./tests/gc/gcbench)
[New process 1]
Core was generated by `gcbench'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x00007218cb40acad in pthread_attr_get_np () from
/usr/lib/libpthread.so.1
(gdb) bt
#0 0x00007218cb40acad in pthread_attr_get_np () from
/usr/lib/libpthread.so.1
#1 0x00007218cb40b107 in pthread_getattr_np () from
/usr/lib/libpthread.so.1
#2 0x00007218cb80e4c2 in GC_get_main_stack_base () from
/usr/pkg/lib/libgc.so.1
#3 0x00007218cb8178b5 in GC_init () from /usr/pkg/lib/libgc.so.1
#4 0x0000000000405935 in systemInit000 ()
#5 0x0000000000408c13 in NimMain ()
#6 0x0000000000408f8f in main ()
Run
* * *
It seems the failure is always in pthread_attr_get_np. I'm going to try and
reduce this in some C code to see if I can replicate it...
