You signed in with another tab or window. Reload to refresh your session.You signed out in another tab or window. Reload to refresh your session.You switched accounts on another tab or window. Reload to refresh your session.Dismiss alert
To reproduce: install Python 3 (the binary package from python.org),
Darling [~]$ python3
Python 3.7.0 (v3.7.0:1bf9cc5093, Jun 26 2018, 23:26:24)
[Clang 6.0 (clang-600.0.57)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> from threading import Thread
>>> t = Thread(target=print)
>>> t.start()
Segmentation fault: 11 (core dumped)
Some poking around:
Stacktrace:
(gdb) bt
#0 0x00007ffff50b0243 in sysmalloc (nb=nb@entry=592, av=av@entry=0x7ffff53e7c40) at malloc.c:2680
#1 0x00007ffff50b11b1 in _int_malloc (av=av@entry=0x7ffff53e7c40, bytes=bytes@entry=576)
at malloc.c:4133
#2 0x00007ffff50b14f5 in tcache_init () at malloc.c:2995
#3 0x00007ffff50b24a6 in tcache_init () at malloc.c:3050
#4 __GI___libc_malloc (bytes=288) at malloc.c:3050
#5 0x00007ffff50b324a in __libc_calloc (n=n@entry=18, elem_size=elem_size@entry=16) at malloc.c:3401
#6 0x00007ffff5a4b992 in allocate_dtv (result=result@entry=0x7ffff4aa7700) at ../elf/dl-tls.c:286
#7 0x00007ffff5a4c30e in __GI__dl_allocate_tls (mem=mem@entry=0x7ffff4aa7700) at ../elf/dl-tls.c:530
#8 0x00007ffff58031a6 in allocate_stack (stack=<synthetic pointer>, pdp=<synthetic pointer>,
attr=0x7fffffdfc7a0) at allocatestack.c:627
#9 pthread_create@@GLIBC_2.2.5 () at pthread_create.c:644
#10 0x00007ffff5c64935 in __darling_thread_create (stack_size=5242880, pth_obj_size=8192,
entry_point=0x7ffff661de94, arg3=140737346360992, arg4=140737320554408, arg5=5242880,
arg6=134220031, thread_self_trap=0x7ffff6633900) at ../src/libelfloader/native/threads.c:95
(lldb) bt
* frame #0: 0x00007ffff66804b8 libsystem_kernel.dylib`__darling_thread_create(stack_size=5242880, pthobj_size=8192, entry_point=0x00007ffff661de94, arg3=140737346360992, arg4=140737320554408, arg5=5242880, arg6=134220031, thread_self_trap=(libsystem_kernel.dylib`thread_self_trap)) at elfcalls_wrapper.c:34
frame #1: 0x00007ffff6695936 libsystem_kernel.dylib`sys_bsdthread_create(thread_start=0x00007ffff78956a0, arg=0x00007ffff5ff8fa8, stack=0x0000000000500000, pthread=0x0000000000000000, flags=134220031) at bsdthread_create.c:51
frame #2: 0x00007ffff6696ffb libsystem_kernel.dylib`_darling_bsd_syscall at syscalls-table.S:19
frame #3: 0x00007ffff667b55a libsystem_kernel.dylib`__bsdthread_create at ___bsdthread_create.S:9
frame #4: 0x00007ffff660e51a libsystem_pthread.dylib`_pthread_create(thread=0x00007fffffdfdb48, attr=0x00007fffffdfdb50, start_routine=(Python`t_bootstrap), arg=0x00007ffff5ff8fa8, from_mach_thread=false) at pthread.c:1219
frame #5: 0x00007ffff660e2b0 libsystem_pthread.dylib`pthread_create(thread=0x00007fffffdfdb48, attr=0x00007fffffdfdb50, start_routine=(Python`t_bootstrap), arg=0x00007ffff5ff8fa8) at pthread.c:1244
frame #6: 0x00007ffff784dab3 Python`PyThread_start_new_thread + 179
frame #7: 0x00007ffff78952dc Python`thread_PyThread_start_new_thread + 268
frame #8: 0x00007ffff775093c Python`_PyMethodDef_RawFastCallKeywords + 668
frame #9: 0x00007ffff774fdba Python`_PyCFunction_FastCallKeywords + 42
frame #10: 0x00007ffff780f5ae Python`call_function + 782
frame #11: 0x00007ffff780c601 Python`_PyEval_EvalFrameDefault + 25313
frame #12: 0x00007ffff77501f0 Python`function_code_fastcall + 128
frame #13: 0x00007ffff780f5bb Python`call_function + 795
frame #14: 0x00007ffff780c546 Python`_PyEval_EvalFrameDefault + 25126
frame #15: 0x00007ffff7810096 Python`_PyEval_EvalCodeWithName + 2422
frame #16: 0x00007ffff7806244 Python`PyEval_EvalCode + 100
frame #17: 0x00007ffff7842c37 Python`PyRun_InteractiveOneObjectEx + 599
frame #18: 0x00007ffff78424f2 Python`PyRun_InteractiveLoopFlags + 226
frame #19: 0x00007ffff78423dc Python`PyRun_AnyFileExFlags + 60
frame #20: 0x00007ffff7860a24 Python`pymain_main + 8276
frame #21: 0x00007ffff7860da1 Python`_Py_UnixMain + 129
frame #22: 0x00007ffff6753b99 libdyld.dylib`start + 1
Code:
(gdb) l malloc.c:2670
2665 aligned_brk += MALLOC_ALIGNMENT - front_misalign;
2666 }
2667 }
2668
2669 /* Find out current end of memory */
2670 if (snd_brk == (char *) (MORECORE_FAILURE))
2671 {
2672 snd_brk = (char *) (MORECORE (0));
2673 }
2674 }
2675
2676 /* Adjust top based on results of second sbrk */
2677 if (snd_brk != (char *) (MORECORE_FAILURE))
2678 {
2679 av->top = (mchunkptr) aligned_brk;
2680 set_head (av->top, (snd_brk - aligned_brk + correction) | PREV_INUSE);
2681 av->system_mem += correction;
2682
2683 /*
2684 If not the first time through, we either have a
To reproduce: install Python 3 (the binary package from python.org),
Some poking around:
Stacktrace:
Code:
expands to
and
which happens to be in Python's ro data page back on the Darwin side:
The text was updated successfully, but these errors were encountered: