ksoftirqd blocks CPU

[RalfGesellensetter <rgx@gmx.de>]

Good evening,

I prepared some debugging/logging to watch what killer is about to do 
during the week.

Now, I realize, that once again 1 CPU is blocked by ksoftirqd:

PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
  7 root      15  -5     0    0    0 R  100  0.0   2945:13 ksoftirqd/1

Also, dmesg/syslog gives some alarming/frightening messages. May anybody 
please have a look at

	http://paste.debian.net/47108/

and tell me, what your experienced eyes see?
I am running a AMD64 Opteron dual core with corresponding kernel:

2.6.26-2-amd64 #1 SMP Sun Jul 26 22:49:57 UTC 2009 x86_64 GNU/Linux

BTW: While writing this, the ksoftirqd process has calmed down...

Thanks anyway.
Wondering
Ralf