acpi_drv will panic in 32 bit kernel.
already visible outhere since SX94 is out:
http://www.opensolaris.org/jive/thread.jspa?messageID=263192
http://www.opensolaris.org/jive/thread.jspa?threadID=67670&tstart=0
Work Around
adding workaround from duplicate 6727562
edit the grub menu and add "-B disable-acpi_drv=true" at the end of this line:
kernel$ /platform/i86pc/kernel/$ISADIR/unix -B disable-acpi_drv=true
Entry 1 george.asaad [2008-07-19 00:06]