Project

General

Profile

Bug #13412 » bug13412.r58367.patch

wanabe (_ wanabe), 04/16/2017 05:34 AM

View differences:

signal.c
rb_bug_errno(STRINGIZE(ruby_sigunmask)":unblock", errno);
}
#endif
{
char buf[4096];
snprintf(buf, 4095, "gdb -batch -p %d -ex 'bt 10' -ex q 1>&2", getpid());
system(buf);
}
ruby_thread_stack_overflow(th);
}
......
if (sp_page == fault_page || sp_page == fault_page + 1 ||
sp_page <= fault_page && fault_page <= bp_page) {
rb_thread_t *th = ruby_current_thread;
fprintf(stderr, "stack_overflow detected\n");
if ((uintptr_t)th->tag->buf / pagesize <= fault_page + 1) {
/* drop the last tag if it is close to the fault,
* otherwise it can cause stack overflow again at the same
* place. */
fprintf(stderr, "use prev tag\n");
th->tag = th->tag->prev;
}
raise_stack_overflow(sig, th);
(9-9/13)