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Fix [Bug #20779] Dedicated native thread creation failed bug

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When a dedicated native thread fails to create (OS can't create more
threads), don't add the ruby-level thread to the thread scheduler. If
it's added, then next time the thread is scheduled to run it will sleep
forever, waiting for a native thread that doesn't exist to pick it up.
This commit is contained in:
Luke Gruber 2024-12-23 13:37:56 -05:00 committed by Koichi Sasada
parent 9e0eb9778d
commit 2a08f7283e
Notes: git 2024-12-24 00:06:07 +00:00 
Merged: https://github.com/ruby/ruby/pull/12441
1 changed files with 6 additions and 3 deletions
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9
thread_pthread.c
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@ -2151,10 +2151,13 @@ native_thread_create_dedicated(rb_thread_t *th)
rb_ec_initialize_vm_stack(th->ec, vm_stack, vm_stack_word_size);
th->sched.context_stack = vm_stack;
// setup
thread_sched_to_ready(TH_SCHED(th), th);
return native_thread_create0(th->nt);
int err = native_thread_create0(th->nt);
if (!err) {
// setup
thread_sched_to_ready(TH_SCHED(th), th);
}
return err;
}
static void