Re: [RFC][PATCH] Fix hang in posix_locks_deadlock()

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From: J. Bruce Fields
Date: Friday, October 26, 2007 - 10:07 am

On Thu, Oct 18, 2007 at 02:57:59PM -0400, George G. Davis wrote:

It may take multiple steps to identify a deadlock.  With the above
you'll miss deadlocks like

	process 1 is requesting a lock held by process 2
	process 2 is blocking on a lock held by process 3
	process 3 is blocking on a lock held by process 1.

Could you give more details about how you're causing
posix_locks_deadlock to hang?  Is there a simple test-case you can post?

--b.

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Messages in current thread:
[RFC][PATCH] Fix hang in posix_locks_deadlock(), George G. Davis, (Wed Oct 17, 11:51 am)
Re: [RFC][PATCH] Fix hang in posix_locks_deadlock(), George G. Davis, (Wed Oct 17, 4:41 pm)
Re: [RFC][PATCH] Fix hang in posix_locks_deadlock(), George G. Davis, (Thu Oct 18, 11:57 am)
Re: [RFC][PATCH] Fix hang in posix_locks_deadlock(), J. Bruce Fields, (Fri Oct 26, 10:07 am)
Re: [RFC][PATCH] Fix hang in posix_locks_deadlock(), J. Bruce Fields, (Fri Oct 26, 3:47 pm)
[RFC, PATCH] locks: remove posix deadlock detection, J. Bruce Fields, (Sun Oct 28, 10:43 am)
Re: [RFC][PATCH] Fix hang in posix_locks_deadlock(), J. Bruce Fields, (Sun Oct 28, 10:47 am)
Re: [RFC, PATCH] locks: remove posix deadlock detection, Matthew Wilcox, (Sun Oct 28, 11:27 am)
Re: [RFC, PATCH] locks: remove posix deadlock detection, Matthew Wilcox, (Sun Oct 28, 1:11 pm)
Re: [RFC, PATCH] locks: remove posix deadlock detection, Trond Myklebust, (Sun Oct 28, 2:50 pm)
Re: [RFC, PATCH] locks: remove posix deadlock detection, Matthew Wilcox, (Sun Oct 28, 3:41 pm)
Re: [RFC, PATCH] locks: remove posix deadlock detection, Matthew Wilcox, (Sun Oct 28, 3:55 pm)
Re: [RFC, PATCH] locks: remove posix deadlock detection, Matthew Wilcox, (Sun Oct 28, 4:31 pm)
Re: [RFC, PATCH] locks: remove posix deadlock detection, Matthew Wilcox, (Sun Oct 28, 4:38 pm)
Re: [RFC, PATCH] locks: remove posix deadlock detection, J. Bruce Fields, (Sun Oct 28, 6:13 pm)
Re: [RFC, PATCH] locks: remove posix deadlock detection, J. Bruce Fields, (Sun Oct 28, 7:10 pm)
Re: [RFC, PATCH] locks: remove posix deadlock detection, J. Bruce Fields, (Sun Oct 28, 7:29 pm)
Re: [RFC, PATCH] locks: remove posix deadlock detection, Trond Myklebust, (Sun Oct 28, 8:26 pm)
Re: [RFC, PATCH] locks: remove posix deadlock detection, J. Bruce Fields, (Tue Oct 30, 8:35 am)
Re: [RFC, PATCH] locks: remove posix deadlock detection, J. Bruce Fields, (Tue Oct 30, 8:51 am)
Re: [RFC][PATCH] Fix hang in posix_locks_deadlock(), George G. Davis, (Fri Nov 2, 8:05 am)