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Date:      Wed, 03 Dec 2003 16:24:19 -0500 (EST)
From:      John Baldwin <jhb@FreeBSD.org>
To:        Igor Sysoev <is@rambler-co.ru>
Cc:        freebsd-current@FreeBSD.org
Subject:   Re: A page fault in subr_turnstile.c:propogate_priority()
Message-ID:  <XFMail.20031203162419.jhb@FreeBSD.org>
In-Reply-To: <Pine.BSF.4.21.0312032322180.29456-100000@is>

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On 03-Dec-2003 Igor Sysoev wrote:
> On Wed, 3 Dec 2003, John Baldwin wrote:
> 
>> > With a patch from http://www.FreeBSD.org/~jhb/patches/turnstile.patch
>> > I can not even rebuild kernel. Can I add MPASS to sources from
>> > 2003.11.28.00.00.00 ?
>> 
>> Ok, I've just updated turnstile.patch again.  I was testing a bogus
>> condition in my earlier patch. :/  This patch has survived for a while
>> now on my test machine that was panic'ing with the earlier patch, so
>> try giving this patch a try against stock CVS sources and see if it
>> clears up all your panics.  Thanks.
> 
> I added MPASS to sources from 2003.11.28.00.00.00 and since then the system
> made 3 builds of the world. I think it would panic tomorrow or so. I'll
> get crash dump and then try your new patch. Can I apply the new patch
> to sources from 2003.11.28.00.00.00 or I need to cvsup to more recent data ?

New patch should probably work fine with those sources.  If you still
get panics, you can try removing the extra MPASS(), and applying
turnstile2.patch.  It adds some debugging printf's that would be
very helpful in tracking down the bug.  Thanks.

-- 

John Baldwin <jhb@FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/



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