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From: Ian Collins <ian-news@hotmail.com>
Newsgroups: comp.lang.c++
Subject: Re: pthread rwlock deadlock detection
Date: Thu, 06 Oct 2011 20:42:23 +1300
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On 10/ 6/11 10:09 AM, Jaydeep Chovatia wrote:
> Hi,
>
> I have multi-threaded program (C++, Linux) in which I am using
> pthread_rwlock_t to read/write lock the critical section. Under load
> my program hangs in acquiring read lock. It seems like some writer has
> not released the lock. I have doubled check my source code but no
> success.
> Is there any way to  see thread ownership on mutex to get idea about
> who is current owner? Is there any otherway to debug it?

The easiest way is to wrap the mutex and instrument it (keep the owner 
tid in the wrapper object) for debugging.

-- 
Ian Collins