[Bug 12207] block reads/writes > 122880 bytes to USB tape drive gives EBUSY

[bugzilla-daemon@bugzilla.kernel.org]

http://bugzilla.kernel.org/show_bug.cgi?id=12207





--- Comment #29 from Kai Mäkisara <kai.makisara@kolumbus.fi>  2009-04-10 19:29:18 ---
On Fri, 10 Apr 2009, bugzilla-daemon@bugzilla.kernel.org wrote:

> http://bugzilla.kernel.org/show_bug.cgi?id=12207
> 
> 
> 
> 
> 
> --- Comment #28 from Alan Stern <stern@rowland.harvard.edu>  2009-04-10 15:19:23 ---
> On Fri, 10 Apr 2009 bugzilla-daemon@bugzilla.kernel.org wrote:
> 
> > --- Comment #27 from oshida@bb-next.net  2009-04-10 09:48:44 ---
...
> > > Did you know that max_sectors can also be changed through the block 
> > > interface?
> > 
> > I'm sorry I did not. Thanks for teaching.
> > But I could not find the device (of course tape drive) under that tree. I think
> > that is just for kinds of block device which can be manipulated with T10/SBC
> > command set.
> 
> No, it is for all block devices.  If you can't find your device under 
> /sys/block/ then look for it somewhere else, such as under 
> /sys/bus/scsi/devices/.
> 
Maybe you should check your facts before telling others where to look. 
max_sectors_kb etc. exist only for block devices (in the Unix sense). 
Tapes are character devices.

Kai

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