On Sun, 26 Dec 2004, David Relson wrote:
> Hi Alan,
>
> Alt-SysRq-T output attached :-) Hopefully I extracted the relevant
> part.
You didn't include the entry for khubd, but I'm not sure that it would
contain anything useful. The trace doesn't point clearly to any specific
cause, although it does indicate that the SCSI error handler task was
running, which means that something went wrong somewhere. At this point
the best thing would be to get a usb-storage verbose debugging log.
> I'm just barely aware of Alt-SysRq ... After dumping the stack, I went
> into emacs and type ctl-x ctl-f (if I recall correctly) and my machine
> shutdown. I assume that's an effect of "sysrq mode". How do I turn the
> mode back off?
Well, your machine certainly isn't supposed to crash like that! Normally
"sysrq mode" turns off when you release the SysRq key. The actual
sequence of keystrokes you're supposed to use is a little obscure; it goes
like this:
Press Alt
Press SysRq
Release Alt
While still holding SysRq, press & release any sequence of
code letters (H for help, T for trace, etc.)
Release SysRq
Also, it's probably a good idea to be at a normal console (not an X11
screen) when you do this.
Alan Stern
-------------------------------------------------------
SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now.
http://productguide.itmanagersjournal.com/
_______________________________________________
[email protected]
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-users
