misc/181386: SMP & USB hangs >254024 for mips64/octeon

[Joe Holden]

>Number:         181386
>Category:       misc
>Synopsis:       SMP & USB hangs >254024 for mips64/octeon
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Aug 18 23:00:00 UTC 2013
>Closed-Date:
>Last-Modified:
>Originator:     Joe Holden
>Release:        HEAD
>Organization:
Pseudo Networks Limited
>Environment:
FreeBSD 10.0-CURRENT (OCTEON-ERL-RTR) #11 r254024: Sun Aug 18 23:44:11 BST 2013
>Description:
Post 254024 the vmem changes cause both SMP and USB to hang during boot - thread here: http://lists.freebsd.org/pipermail/freebsd-mips/2013-August/002975.html

In summary:

* 254025 with SMP enabled (coremask=0x3) the kernel hangs after ULE setup
* 254025 with SMP disabled the kernel hangs after beginning USB setup:

usbus0: 480Mbps High Speed USB v2.0 (sometimes followed by another line/device eg lo0: bpf attached)
>How-To-Repeat:

>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: