A page fault in subr_turnstile.c:propogate_priority()
Brian F. Feldman
green at FreeBSD.org
Mon Dec 8 13:57:15 PST 2003
John Baldwin <jhb at FreeBSD.org> wrote:
>
> 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?
Neeeeeevermind. It hasn't made that problem any worse or better. My SMP is
just very hoseable right now and I need to bring a serial console (laptop)
home so I can try to get ddb if I can't get crash dumps.
--
Brian Fundakowski Feldman \'[ FreeBSD ]''''''''''\
<> green at FreeBSD.org \ The Power to Serve! \
Opinions expressed are my own. \,,,,,,,,,,,,,,,,,,,,,,\
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