Panic with sym on 10.2

[Andrea Venturoli]

Hello.

Two days ago I upgraded a (perfectly working) 9.3/i386 box to 10.2p10
Since then I've had two panics with the following message:

panic: assertion "lp->busy_itl==0&&lp->busy_itlq==0" failed: file 
/usr/src/sys/dev/sym/sym_hipd.c

Since the disk controller is involved, I do not get any core and I have 
to press the reset button.

Google showed up no results (I'm not using ZFS, btw) and Bugzilla didn't 
help either.

Any hint on where to go from here?

  bye & Thanks
	av.