A page fault in subr_turnstile.c:propogate_priority()

[Brian F. Feldman]

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!

-- 
Brian Fundakowski Feldman                           \'[ FreeBSD ]''''''''''\
  <> green at FreeBSD.org                               \  The Power to Serve! \
 Opinions expressed are my own.                       \,,,,,,,,,,,,,,,,,,,,,,\