From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Mon, 25 Oct 2010 16:35:53 +0200
From: Lucio De Re <lucio@proxima.alt.za>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Message-ID: <20101025143553.GC4573@fangle.proxima.alt.za>
References: <20101024122035.GB14331@fangle.proxima.alt.za>
	<6701519c3b154bfb8462542b787fbae5@coraid.com>
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User-Agent: Mutt/1.5.20 (2009-06-14)
Subject: Re: [9fans] lock diagnostics on Fossil server
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On Mon, Oct 25, 2010 at 09:20:51AM -0400, erik quanstrom wrote:
>
> sounds familiar.  this patch needs to be applied to the kernel:
>
> /n/sources/plan9//sys/src/9/port/chan.c:1012,1018 - chan.c:1012,1020
>   				/*
>   				 * mh->mount->to == c, so start at mh->mount->next
>   				 */
> + 				f = nil;
>   				rlock(&mh->lock);
> + 				if(mh->mount)
>   				for(f = mh->mount->next; f; f = f->next)
>   					if((wq = ewalk(f->to, nil, names+nhave, ntry)) != nil)
>   						break;
>
> please apply.  if the problem persists after the fix, use acid to print the
> source of the pcs and qpcs of the procs involved and send that offline.
>
Will do.  I was looking for that patch, you have posted it to 9fans
before.  Somehow, a quick search did not reveal what I was hoping to find.
I'll come back with some results soon.

++L