On Thu, 2007-05-24 at 18:30 +0200, Attilio Rao wrote: > 2007/5/24, Joe Marcus Clarke <marcus_at_marcuscom.com>: > > On Thu, 2007-05-24 at 20:13 +0200, Attilio Rao wrote: > > > Jeff Roberson wrote: > > > > Thanks, Attilio and I will look at this right away. > > > > > > > > Jeff > > > > > > > > On Wed, 23 May 2007, Joe Marcus Clarke wrote: > > > > > > > >> On a -CURRENT build today with Jeff's LDT locking changes, I get an > > > >> instant, reproducible panic by doing: > > > >> > > > >> # cd /usr/src > > > >> # make -DNO_CLEAN buildworld > > > >> > > > >> Backing out the LDT changes to /sys/i386/i386/*machdep* corrects the > > > >> problem. Here is a dmesg and backtrace. In frame 6, it appears mdp is > > > >> NULL (i.e. td->td_proc->p_md = 0x0). > > > > > > Did you enable WITNESS/INVARIANTS/INVARIANT_SUPPORT? > > > > No, this kernel does not have WITNESS or INVARIANTS. I can enable those > > tomorrow if that would give you more useful information. > > It would be very appreciated, since I've been unable to reproduce your > panic on a centrino dual core. Will do, but it may be that adding those options masks the bug. Have you tried without them? Joe -- PGP Key : http://www.marcuscom.com/pgp.asc
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