#19 100% cpu utilization & crash system

[igor potapenko]

after
https://sourceforge.net/tracker/index.php?func=detail&aid=1911504&group_id=14145&atid=114145
and

https://sourceforge.net/tracker/?func=detail&atid=114145&aid=1910225&group_id=14145

I upgraded to 6.3

$23:37 igor@steel ~(0/2)$ uname -a
FreeBSD steel.local 6.3-RELEASE-p1 FreeBSD 6.3-RELEASE-p1 #14: Wed Mar
12 21:15:25 MSK 2008 root@steel.local:/usr/obj/usr/src/sys/BRONZE
i386

but system become unstable.
$23:23 igor@steel ~(0/2)$ last | grep reboot
reboot ~ Wed Mar 19 22:44
reboot ~ Wed Mar 19 21:51
reboot ~ Wed Mar 19 13:03
reboot ~ Tue Mar 18 23:41

sometimes... mpd5 cpu utilization up to 100% and may be killed only with -9 signal.
sometimes system reboot immediately

log:

Mar 19 13:01:26 steel mpd: EVENT: Processing timer "FsmKeepAlive"
FsmEchoTimeout() done
Mar 19 13:01:26 steel mpd: EVENT: Processing event EVENT_TIMEOUT
TimerExpires() done
Mar 19 13:01:26 steel mpd: EVENT: Processing event EVENT_TIMEOUT
TimerExpires()
Mar 19 13:01:26 steel mpd: EVENT: Processing timer "FsmKeepAlive"
FsmEchoTimeout()
Mar 19 13:01:26 steel mpd: EVENT: Processing timer "FsmKeepAlive"
FsmEchoTimeout() done
Mar 19 13:01:26 steel mpd: EVENT: Processing event EVENT_TIMEOUT
TimerExpires() done

Mar 19 13:01:27 steel mpd: EVENT: Processing event EVENT_TIMEOUT
TimerExpires()
@
@
@
Mar 19 13:01:27 steel mpd: EVENT: Processing timer "Fs^@^@^@^@^@^
@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@
^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^

(it's vim view.)
after reboot:

Mar 19 13:03:18 steel mpd:
Mar 19 13:03:18 steel mpd: process 943 started, version 5.0
(root@steel.local 03:33 24-Jan-2008)
Mar 19 13:03:18 steel mpd: CONSOLE: listening on 127.0.0.1 5005
Mar 19 13:03:18 steel mpd: web: listening on 127.0.0.1 5555

[Alexander Motin]

Logged In: YES
user_id=892211
Originator: NO

6.3-RELEASE has bug in libpthread library that may lead mpd to eating 100% CPU.
Switching to libthr using libmap.conf or updating to 6-STABLE is recommended to solve this problem.