[ruby-core:93521] [Ruby master Bug#11468] Two mutexes leaked in Init_Thread

Issue #11468 has been updated by jeremyevans0 (Jeremy Evans).

Status changed from Open to Closed

`Init_Thread` is only called once on Ruby startup.  There are 3 mutexes initialized in `Init_Thread` in the master branch. It appears that these mutexes are used, so I wouldn't consider them leaked.  2 of the mutexes appear to be destroyed on shutdown in `rb_vm_gvl_destroy`.  I think the third may be destroyed on shutdown in `thread_cleanup_func`, but I couldn't confirm that.  Anyway, this doesn't appear to be an actual memory leak.

----------------------------------------
Bug #11468: Two mutexes leaked in Init_Thread
https://bugs.ruby-lang.org/issues/11468#change-79082

* Author: scorpion007 (Alex Budovski)
* Status: Closed
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: 
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
----------------------------------------
48 bytes each.

~~~
	    native_mutex_initialize(&th->vm->thread_destruct_lock);
	    native_mutex_initialize(&th->interrupt_lock);
~~~
~~~
+      48 (     48 -      0)      1 allocs	BackTrace9CB2F14B
+       1 (      1 -      0)	BackTrace9CB2F14B	allocations

	ntdll!RtlpCallInterceptRoutine+40 (d:\blue\minkernel\ntos\rtl\heappriv.h, 3625)
	ntdll!RtlAllocateHeap+79836 (d:\blue\minkernel\ntos\rtl\heap.c, 1892)
	ntdll!RtlpAddDebugInfoToCriticalSection+12 (d:\blue\minkernel\ntdll\resource.c, 2518)
	ntdll!RtlInitializeCriticalSection+5656D (d:\blue\minkernel\ntdll\resource.c, 2107)
	rubyprov!native_mutex_initialize+17 (e:\dev\ruby\thread_win32.c, 385)
	rubyprov!Init_Thread+8BD (e:\dev\ruby\thread.c, 5142)
	rubyprov!rb_call_inits+C7 (e:\dev\ruby\inits.c, 58)
	rubyprov!ruby_setup+C6 (e:\dev\ruby\eval.c, 63)
~~~

~~~

+      48 (     48 -      0)      1 allocs	BackTrace9CB2F00B
+       1 (      1 -      0)	BackTrace9CB2F00B	allocations

	ntdll!RtlpCallInterceptRoutine+40 (d:\blue\minkernel\ntos\rtl\heappriv.h, 3625)
	ntdll!RtlAllocateHeap+79836 (d:\blue\minkernel\ntos\rtl\heap.c, 1892)
	ntdll!RtlpAddDebugInfoToCriticalSection+12 (d:\blue\minkernel\ntdll\resource.c, 2518)
	ntdll!RtlInitializeCriticalSection+5656D (d:\blue\minkernel\ntdll\resource.c, 2107)
	rubyprov!native_mutex_initialize+17 (e:\dev\ruby\thread_win32.c, 385)
	rubyprov!Init_Thread+8AA (e:\dev\ruby\thread.c, 5140)
	rubyprov!rb_call_inits+C7 (e:\dev\ruby\inits.c, 58)
	rubyprov!ruby_setup+C6 (e:\dev\ruby\eval.c, 63)
~~~



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