usb/82660: EHCI: I/O stuck in state 'physrd'/panic

[Stefan Walter]

Hans Petter Selasky, 01.07.05, 12:10h CEST:

> On Thursday 30 June 2005 18:28, Stefan Walter wrote:
> > Hans Petter Selasky, 30.06.05, 14:08h CEST:
> > > > > Try "sysctl hw.usb.umass.debug=15" while you have the my driver in
> > > > > the kernel, hence it has got debugging flags enabled by default. Else
> > > > > you need to add something like "option USB_DEBUG" to your kernel
> > > > > config file. I'm not sure if you can compile the modules with
> > > > > debugging support unless you use my USB driver.
> > > > >
> > > > > See if any errors show up.
> > > > >
> > > > > Then try "sysctl hw.usb.debug=15". See if any errors appear.
> > > >
> > > > I tried that with the official FreeBSD driver for now (USB_DEBUG and
> > > > ehci in the kernel).
> > > >
> > > > hw.usb.umass.debug=15 didn't show me any messages during the transfer,
> > > > only when (dis)connecting the device. hw.usb.debug=15 dumped a lot of
> > > > output. It's available here:
> > >
> > > Try "sysctl hw.usb.umass.debug=-1" while "hw.usb.debug=0".
> >
> > I did that. I don't know enough about the USB stuff to interpret the
> > output myself, so here it is:
> > http://www.gegenunendlich.de/stuff/umass-messages-until-pullout.bz2.
> >
> 
> Could you try to reproduce the error while logging?

Well, that *is* the output from the exact same situation as before: I
plugged in the USB stick and tried to copy a file to the hard disk with
mcopy; the mcopy process eventually stalled. The output is the tail of
/var/log/messages at that point of time, including all USB debug messages.

When I pulled the stick out afterwards, the console only showed the same
message again and again, seemingly in an endless loop:

umass0: CAM poll

I had to reset the machine.  I didn't do anything different except setting
hw.usb.umass.debug=-1.

I'll retry the same thing once more later. If anything's different, then,
I'll let you know.

Stefan
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 650 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-usb/attachments/20050701/f8f8ee7a/attachment.bin