freebsd stable - Dec 2007 - scrambled (gmirror) dmesg output

Hello
Im playing with a new box running RELENG_7.0 from yesterday. I got  
two discs with gmirror on ad[6|14]s1a and zfs-mirror on s1d. When o  
do atacontrol detach ata7 (detach ad14), i get this in dmesG:

(first time)
subdisk14: detached
ad14: detached
GEOM_MIRROR: Device gm1b: provider ad14s1bG dEiOsMc_oMnInReRcOtRe:d .De
vice gm1: provider ad14s1a disconnected.

(second time, detaching again after reattach)
subdisk14: detached
ad14: detached
GEOMG_EMOIMR_RMOIRR:R ORD:e viDceev icgem 1bg:m 1p:r opvriodveird era  
d1a4ds114bs 1dai sdciosncnoencnteecdt.ed.

huh? :) Some print raceing or something?

Btw, Im doing ZFS'ed root as on wiki, but i added gmirror to the root  
partition to (and steps to install from one disc to the other, then  
boot over and add the original disc to mirrors)..
I've documented the steps (or at least the commands and some simple  
comments), would anyone be interested in having it, on the wiki or  
otherwise?

--
Johan Str?m
Stromnet
johan@stromnet.se
http://www.stromnet.se/

On Sat, Dec 01, 2007 at 12:16:45PM +0100, Johan Str?m
wrote:
> Hello
> Im playing with a new box running RELENG_7.0 from yesterday. I got two 
> discs with gmirror on ad[6|14]s1a and zfs-mirror on s1d. When o do 
> atacontrol detach ata7 (detach ad14), i get this in dmesG:
>
> (first time)
> subdisk14: detached
> ad14: detached
> GEOM_MIRROR: Device gm1b: provider ad14s1bG dEiOsMc_oMnInReRcOtRe:d .De
> vice gm1: provider ad14s1a disconnected.
>
> (second time, detaching again after reattach)
> subdisk14: detached
> ad14: detached
> GEOMG_EMOIMR_RMOIRR:R ORD:e viDceev icgem 1bg:m 1p:r opvriodveird era 
> d1a4ds114bs 1dai sdciosncnoencnteecdt.ed.
>
> huh? :) Some print raceing or something?
The problem isn't specific to GEOM or ZFS.  It's a known issue with two
kernel printf()s being called simultaneously.  There are older threads
discussing the issue.  I can dig up URLs if you want to read them, but I
don't have them available quickly...

-- 
| Jeremy Chadwick                                    jdc at parodius.com |
| Parodius Networking                           http://www.parodius.com/ |
| UNIX Systems Administrator                      Mountain View, CA, USA |
| Making life hard for others since 1977.                  PGP: 4BD6C0CB |