USB disk causes panic in 7.0-PRERELEASE

Mon Oct 22 04:03:55 PDT 2007

Hello, list!

Jeg just bought a LaCie external USD hdd to store my pictures. When
I plug it in, it causes my laptop to panic after ~15-20 seconds.
After a reboot (with the disc still plugged in) it functions properly.

These are the messages I get when I plug it in:

umass0: <SAMSUNG HDS0PAJDQP807411 LaCie Desktop Hard Drive, class
0/0, rev 2.00/c6.83, addr 2> on uhub3
da0 at umass-sim0 bus 0 target 0 lun 0
da0: <SAMSUNG HD320KJ > Fixed Direct Access SCSI-2 device
da0: 40.000MB/s transfers
da0: 305245MB (625142448 512 byte sectors: 255H 63S/T 38913C)
GEOM_LABEL: Label for provider da0s1 is msdosfs/LaCie.
umass0: at uhub3 port 1 (addr 2) disconnected
(da0:umass-sim0:0:0:0): lost device
(da0:umass-sim0:0:0:0): removing device entry
GEOM_LABEL: Label msdosfs/LaCie removed.
umass0: detached
umass0: <LaCie LaCie Desktop Hard Drive, class 0/0, rev 2.00/c6.83,
addr 2> on uhub3
xptioctl: pass driver is not in the kernel
xptioctl: put "device pass0" in your kernel config file

On the next subsequent boot (with the device plugged in), I get:

da0 at umass-sim0 bus 0 target 0 lun 0
da0: <SAMSUNG HD320KJ > Fixed Direct Access SCSI-2 device
da0: 40.000MB/s transfers
da0: 305245MB (625142448 512 byte sectors: 255H 63S/T 38913C)
GEOM_LABEL: Label for provider da0s1 is msdosfs/LaCie.

And I am able to mount it. If I disconnect, and reconnect it again,
the computer panics again. How can I diagnose this? The computer
saves a vmcore file. Can I use this to harvest some more information?

FreeBSD weld.ej2.thelosingend.net 7.0-PRERELEASE FreeBSD
7.0-PRERELEASE #0: Sun Oct 14 15:04:21 CEST 2007
sveinhal at weld.ej2.thelosingend.net:/usr/obj/usr/src/sys/GENERIC  i386