Kodak USB flash reader causes freezes, panics

[Tim Howe]

Brooks Davis <brooks at one-eyed-alien.net> writes:

> On Mon, Apr 11, 2005 at 05:24:15PM -0400, Tim Howe wrote:
>
> > Reproducibly, if I begin copying data to a [...] CF card [...] it
> > works for a while, then freezes the system.
>
> It is quite likely that 5.4 fixed your problem.

Unfortunately not.  I was able, having mounted the filesystem with no
synchronization options, to copy 171MiB of data onto it and unmount.
However when I re-mounted it with the same options and tried to copy
71MiB more, it again froze midway through.

Everything else (X11, sound, printing, input) seems to be working
perfectly with 5.4, but I did notice something new and strange with
regard to umass.  I still have to run "true > /dev/da0" to get the slice
to show up, but now I get the following:

[1042] ~ # true > /dev/da0               
[1043] ~ # camcontrol rescan 0           
Re-scan of bus 0 was successful
[1044] ~ # ls -l /dev/da0*               
crw-r-----  1 root  operator    4,  21 Apr 11 21:45 /dev/da0
crw-r-----  1 root  operator    4,  28 Apr 11 21:45 /dev/da0s1
crw-r-----  1 root  operator    4,  29 Apr 11 21:45 /dev/da0s1s1
[1045] ~ # mount_msdosfs /dev/da0s1 /mnt/cf 
[1046] ~ # umount /mnt/cf 
[1047] ~ # mount_msdosfs /dev/da0s1s1 /mnt/cf
[1048] ~ # umount /mnt/cf

Thoughts?

FreeBSD beaker.data-secure.net 5.4-RC2 FreeBSD 5.4-RC2 #2: Mon Apr 11 20:31:53 EDT 2005     root at beaker.data-secure.net:/usr/obj/usr/src/sys/GENERIC  i386