random ADB lockup? (wallstreet powerbook)

Benjamin Herrenschmidt benh at kernel.crashing.org
Fri Oct 5 22:01:35 EST 2001

>Has anyone else noticed this?  It seems as though the Wallstreet I
>have experiences semi-random.  It seems like it happens some time
>after the power is removed (running off of battery).  sshing in and
>rebooting the machine seems to be the only way to get things back in
>I'm running 2.4.9-benh0, btw.
>Any ideas?  Should I try a newer kernel?

I've been reported this by several people but didn't yet find what's
going on. When the problem happen, can you enter xmon (with command-power)
and tell me if you can type anything there ? If xmon is receiving the
keystrokes, then the ADB hardware is still working properly.

Something else you can test is to disable powerbook power management from
the kernel. Then, when the problem happen, telnet into the machine and
check /proc/interrupts, tell me if the via-pmu interrupt count is
increasing when typing keys.


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