Is this related to the general panic discussed in freebsd-current?

[Warner Losh]

On May 3, 2013, at 12:26 AM, Werner Thie wrote:

> Hi all
> 
> just came around yesterday to start playing with crochet, built an image and KDB entering panic when booting
> 
> FreeBSD 10.0-CURRENT #0 r250144M: Thu May  2 10:10:20 CEST 2013
> root at xtools:/usr/home/wthie/proj/crochet-freebsd/work/obj/arm.armv6/usr/local/src/sys/BEAGLEBONE arm
> FreeBSD clang version 3.3 (trunk 178860) 20130405
> WARNING: WITNESS option enabled, expect reduced performance.
> panic: acquiring blockable sleep lock with spinlock or critical section held (rw) pmap pv global @ /usr/local/src/sys/arm/arm/pmap-v6.c:1187
> KDB: enter: panic
> [ thread pid 0 tid 0 ]
> Stopped at      $d:     ldrb    r15, [r15, r15, ror r15]!

This looks like the clang-built witness panic that's in arm.

Warner

> 
> Main system up to date:
> FreeBSD xtools 9.1-RELEASE-p3 FreeBSD 9.1-RELEASE-p3 #0: Mon Apr 29 18:11:52 UTC 2013
> 
> crochet out of git, config with
> 
> board_setup BeagleBone
> AutoSize=1
> SwapFile=768mb
> 
> What am I missing?
> 
> Mahalo, Werner
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