USB device causes kernel panic

GerritKühn gerrit at
Mon Apr 4 05:13:25 PDT 2005

On Fri, 01 Apr 2005 08:05:47 -0500 Mike Tancsa <mike at> wrote
about Re: USB device causes kernel panic:

MT> >I have a XS-Drive Pro VP300 (Vosonic) here which runs fine as USB1
MT> >device, but completely screws up my system when pluggeg into a USB2
MT> >port.

MT> Try updating to the latest RELENG_5. There have been a lot of USB bug
MT> fixes  since Dec.

Ok, I think now I have the latest:

arc# uname -a
FreeBSD 5.4-STABLE FreeBSD 5.4-STABLE #3: Mon Apr 
4 11:21:26 CEST 2005    

I can attach the drive now, and it basically works. I can successfully do
something like this:

(%:/mnt/xs-drive)- dd if=/dev/zero of=Z bs=1024k count=10
10+0 records in
10+0 records out
10485760 bytes transferred in 3.841036 secs (2729930 bytes/sec)

However, when I increase the amount of data by using count=100, the thing
hangs again. This time I get the following:

(%:/mnt/xs-drive)- dd if=/dev/zero of=Z bs=1024k count=100
umass0: BBB reset failed, TIMEOUT
umass0: BBB reset failed, TIMEOUT

Any hints?


More information about the freebsd-stable mailing list