Re: P_WEXIT
Re: P_WEXIT
- Subject: Re: P_WEXIT
- From: Joseph Oreste Bruni <email@hidden>
- Date: Sat, 16 Dec 2006 10:51:18 -0700
On Dec 15, 2006, at 8:24 PM, Terry Lambert wrote:
Let me say up front that I don't believe this is a kernel problem,
and the "showallstacks" command should confirm that there are still
stacks running in the process. You may end up (if it has already
been taken off the active process list) having to track down the
task from the zombie list, if it doesn't show up in the task list -
meaning it won't show in the "showallstacks".
-- Terry
Perhaps I don't understand at Apple's implementation layer what
happens to a thread during a pthread_join(). My understanding of
pthread_join() is that the calling thread blocks until the referenced
thread terminates either explicitly by a call to pthread_exit(),
implicitly by returning from the thread's main routine, or by
terminating at a cancellation point after having been cancelled, that
pthread_join() is analogous to waitpid() (without the WNOHANG option).
So, a stack continues to exist even after it has been joined? Are
stacks then cleaned up asynchronously? Or is there a subsequent *_np
API I need to call to get stacks to get cleaned up? Every thread that
I created I successfully joined without exception since I logged the
thread IDs and accounted for them all.
I'll see what I can do about the kernel debugging. Assuming there is
yet another thread hanging around, I have no idea what I would be
changing in my code beyond what I'm doing now.
Using "top", the number of threads ("#TH") in the running program is
exactly equal to the number I'm creating plus the main thread, so I
have no idea what other threads could be hiding.
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| References: | |
| | >P_WEXIT (From: Joseph Oreste Bruni <email@hidden>) |
| | >Re: P_WEXIT (From: Quinn <email@hidden>) |
| | >Re: P_WEXIT (From: Terry Lambert <email@hidden>) |
| | >Re: P_WEXIT (From: Joseph Oreste Bruni <email@hidden>) |
| | >Re: P_WEXIT (From: Terry Lambert <email@hidden>) |