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Date: Mon, 18 Sep 2006 16:30:32 GMT
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To: freebsd-threads@FreeBSD.org
From: John-Mark Gurney <gurney_j@resnet.uoregon.edu>
Cc: 
Subject: Re: threads/103127: Kernel panic while using thread features in
	Squid 2.6
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The following reply was made to PR kern/103127; it has been noted by GNATS.

From: John-Mark Gurney <gurney_j@resnet.uoregon.edu>
To: Anders Nordby <anders@fupp.net>
Cc: FreeBSD-gnats-submit@FreeBSD.org, freebsd-threads@FreeBSD.org,
        Thomas-Martin Seck <tmseck@netcologne.de>,
        Suleiman Souhlal <ssouhlal@FreeBSD.org>, jhb@FreeBSD.org
Subject: Re: threads/103127: Kernel panic while using thread features in Squid 2.6
Date: Mon, 18 Sep 2006 09:27:36 -0700

 Anders Nordby wrote this message on Mon, Sep 18, 2006 at 10:33 +0200:
 > Hi,
 > 
 > On Sat, Sep 16, 2006 at 01:50:44PM -0700, John-Mark Gurney wrote:
 > >> After talking with Pawel, I tried the attached patch to get some kqueue
 > >> debug info. I just got it:
 > >> 
 > >> Sep 13 20:18:56 cache3 kernel: NULL f_event in new kn
 > >> Sep 13 20:18:56 cache3 kernel: f_event == NULL
 > > 
 > > This means that the f_attach method for that event isn't setting f_event
 > > properly...  We need to figure out which event this is happening w/...
 > > 
 > > Try the following modifications:
 > >> (..)
 > > > +			if (kn->kn_fop->f_event == NULL)
 > >  {
     ^^^
 > > > +				printf("NULL f_event in new kn\n");
 > 
 > This modification was already done with the patch from Pawel, check the
 > audit-trail of this PR. By using that patch, I got the messages "NULL
 > f_event in new kn" and "f_event == NULL".
 
 You missed my modifications to the patch...  They were done in addition
 to his patch, and as I said in that email, they should fix the problem,
 it's not an information gathering exercise...
 
 -- 
   John-Mark Gurney				Voice: +1 415 225 5579
 
      "All that I will do, has been done, All that I have, has not."