SAMBA 3 weirdness on a FreeBSD 7.0-PRE box

[O. Hartmann]

Hello,
running a SAMBA 3 server as PDC for a bunch of Windows Clients I run 
into the following problem:

sometimes the smbd daemon signalls SIG 11 and dies, dumping a lot of 
this stuff to the console:

8<666>p0i
d<1 18>]:   =======
=<=6=>=8
6<61018 >=
=<=6=>=(
m<b1d1)8,>=
=<==6>= u
i<d 1108>:==
=<=6=>= e
x<i1t18e>=
=<=6=>=d
o<n 1s1i8g>n==
=<=6>=al
<1111
8>=========================
pid 8749 (smbd), uid 0: exited on signal 11
pid
1<61>8
8<351 1(8> 08:50:
4<46> smb
d)<,1 18u>giau
s<s6 >sd
 <1018: >emb
d<[68>x
i<t1e18d> 8
3<65>]o
<n1 1s8i>g:
 < 6>Pnla
<l11 8>1ea
s<e6> 1
<
118>read the Trouble-Shooting section of the Samba3-HOWTO
pid 9004 (smbd), uid 0: exited on signal 11
pid 9057 (smbd), uid 0: exited on signal 11
pid 9191 (smbd), uid 0: exited on signal 11


I have no idea what's up, no one reports problems, so I wasn't 
immediately aware of this problem. Does anyone has seen this before and 
does have a solution?

Thanks in advance,
Oliver

P.S. Bos is a Dual Core AMD 5600+ X2 running in pure 64Bit mode on TYAN 
board, 4 GB RAM. SCHED_ULE, PREEMPTIOn enabled as well in kernel.