Hmm indeed. What platform? Anything special about the kernel?

This looks like somebody changed a maxphys limit- 32256 is 7e00, or 512
bytes less than 32768.

I'd look for breakage outside the driver and more in the platform
support cxode.


On Sat, 27 Dec 2003, Wojciech Puchar wrote:

> i've been able to use 32K blocks on exactly that tape drive in 1.5.*
>
> now:
>
> root@serwer# tar -b64 -cvf /dev/rst0 /bin /sbin
> tar: Write block size of 32768 too large, maximum is: 32256
>
>
> the drive is:
> st0 at scsibus0 target 6 lun 0: <ARCHIVE, IBM4326NP/RP  !D, 04BK> tape
> removable
> st0: drive empty
> st0: sync (200.00ns offset 15), 8-bit (5.000MB/s) transfers
>