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Date: Thu, 28 Aug 2003 12:40:44 -0700 (PDT)
From: Nate Lawson <nate@root.org>
To: Larry Baird <lab@gta.com>
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Subject: Re: Please test: USB floppies
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On Wed, 28 Aug 2003, Larry Baird wrote:
> Nate,
>
> >> When umount-ing I get the following:
> >>
> >> umass: Unsupported UFI command 0x35
> >> (da0:umass-sim0:0:0:0): Synchronize cache failed, status == 0x6, scsi status == 0x0
> >>
> >> And this is repeated twice.
> >
> > This message is harmless in the absence of other problems.
> >
> > But no problems like the drive hanging after multiple mount/umounts or
> > writing problems or anything?
>
> Here is a report on another USB floppy drive.
> On my Sony VAIO using SOny's <Y-E DATA USB-FDU 1.28> floppy I am also
> seeing the same message as above.  But I see it everytime I access the
> floppy.  Repeated mounts/ unmounts and I/O to the floppy appear to
> work fine.  No hangs, nothing odd other than the above message.
>
> I think I have some other USB floppy drives at work.  I'll try and give
> them a test drive as well in the next few days.

I re-enabled some floppy quirks that I'm unsure are needed but I had to do
it for the upcoming 4.9R just in case.  So your results don't help at this
point.

Could you put an "#if 0" and "#endif" around the section marked:
/* USB floppy devices supported by umass(4) */

Alternatively, cvsup sys/cam/scsi/scsi_da.c to rev 1.42.2.42 and test the
floppy again.

Thanks,
Nate