Commit ca8afa76 authored by Paul Eggert's avatar Paul Eggert
Browse files

Require a larger stack size for threads on macOS (bug#30364)

* src/systhread.c (sys_thread_create)
Require at least 8MB stack size for x64 and 4MB for x86 on macOS.
Do not merge to master.
parent fd502387
......@@ -165,6 +165,15 @@ sys_thread_create (sys_thread_t *thread_ptr, const char *name,
if (pthread_attr_init (&attr))
return 0;
#ifdef DARWIN_OS
/* Avoid crash on macOS with deeply nested GC (Bug#30364). */
size_t stack_size;
size_t required_stack_size = sizeof (void *) * 1024 * 1024;
if (pthread_attr_getstacksize (&attr, &stack_size) == 0
&& stack_size < required_stack_size)
pthread_attr_setstacksize (&attr, required_stack_size);
if (!pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED))
result = pthread_create (thread_ptr, &attr, func, arg) == 0;
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