On Fri, Jun 06, 2014 at 07:23:49AM -0700, Sean Bruno wrote: > On Fri, 2014-06-06 at 10:12 -0400, Glen Barber wrote: > > Two machines in the cluster panic last night with the same backtrace. > > It is unclear yet exactly what was happening on the systems, but both > > are port building machines using ports-mgmt/tinderbox. > > > > Any ideas or information on how to further debug this would be > > appreciated. > > > These machines were happily running r266621 previously to this update > yesterday. So, that gives us a bisection point. > Some more debug information. Thank you to Attilio for information on what data to get. Script started on Fri Jun 6 15:00:53 2014 command: /bin/sh # kgdb ./kernel.debug /var/crash/vmcore.0 [...] #0 doadump (textdump=-946873840) at pcpu.h:219 219 __asm("movq %%gs:%1,%0" : "=r" (td) (kgdb) p/x allproc_lock.sx_lock $1 = 0xfffff813ae7f4924 Current language: auto; currently minimal (kgdb) p ((struct thread *)0xfffff813ae7f4924) $2 = (struct thread *) 0xfffff813ae7f4924 (kgdb) p $2->td_tid $3 = 0 (kgdb) ^D # ^D Script done on Fri Jun 6 15:03:19 2014 Glen
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