kern/48411: repeatable SMP crashes in amd64-current

[htodd%twofifty.com@localhost]

>Number:         48411
>Category:       kern
>Synopsis:       repeatable SMP crashes in amd64-current
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Nov 27 06:10:00 +0000 2013
>Originator:     H. Todd Fujinaka
>Release:        NetBSD 6.99.28
>Organization:
None
>Environment:
        
        
System: NetBSD mara.i8u.org 6.99.28 NetBSD 6.99.28 (MARA) #747: Tue Nov 26 
16:06:33 PST 2013 
htodd%mara.i8u.org@localhost:/usr/obj/amd64/sys/arch/amd64/compile/MARA amd64
Architecture: x86_64
Machine: amd64
>Description:
parallel builds on amd64-current lock up the system with lots of processes 
stuck in tstile. Backtraces at http://www.i8u.org/~Htodd/crash/
        
>How-To-Repeat:
install amd64-current, reboot, try to build amd64-current again
        
>Fix:
boot without SMP
        

>Unformatted: