Errors during probe cause inifinite loop in sbp

[simokawa at sat.t.u-tokyo.ac.jp (Hidetoshi Shimokawa)]

CC'ed to freebsd-scsi.

At Mon, 12 May 2003 10:08:20 -0700 (PDT),
Chuck McCrobie wrote:
> 
> [1  <text/plain; us-ascii (7bit)>]
> Please find attached the log file from a boot with the
> PowerFile changer.  One drive in the changer does not
> support the "12 21 80 00 ff 00" command that is sent
> during XPT probing.

It seems that the second cd drive doesn't support INQUIRY command.
We may need something like NO_INQUIRY in umass.c.

> When the error comes back, it appears sbp endlessly
> resends the command.
> 
> Attached /var/log/message output.
> 
> I managed to get the changer working by adding a
> CAM_QUIRK_NOSERIAL to the cam_xpt.c file, but this
> seems to be quite a hack.
> 
> I can try debugging code, etc. since I still have
> access to the PowerFile.
> 
> Chuck McCrobie
> mccrobie2000_(_at_)_yahoo_(_dot_)_com

/\ Hidetoshi Shimokawa
\/  simokawa_(_at_)_sat_(_dot_)_t_(_dot_)_u-tokyo_(_dot_)_ac_(_dot_)_jp
PGP public key: http://www.sat.t.u-tokyo.ac.jp/~simokawa/pgp.html