A page fault in subr_turnstile.c:propogate_priority()
John Baldwin
jhb at FreeBSD.org
Mon Dec 8 13:44:04 PST 2003
On 06-Dec-2003 Brian F. Feldman wrote:
> John Baldwin <jhb at FreeBSD.org> wrote:
>>
>> 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.
>
> I think this may have totally fixed the insta-reboots (no core dump) that
> I've been suffering from!
Which patch fixed things, just turnstile.patch by itself?
--
John Baldwin <jhb at FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve!" - http://www.FreeBSD.org/
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