[SPAM] Re: m8xx hang in reboot

Mark S. Mathews mark at linux-wlan.com
Thu Aug 26 22:28:40 EST 2004

This is interesting, thanks Stefan.

One item of info that I had left out of the original post (because I
hadn't verified 100% that this was truly part of the issue):
   The "certain circumstances" prior to the reboot failure are:
     1) we've just completed an unlock/erase/write on one of our flash
     2) the wlan device that's attached to the pcmcia interface was
        previously in use.

If the wlan device was not in use or if we don't do the flash
unlock/erase/write, then the reboot works just fine.  Strange combination
of factors.

Thanks Stefan,

On Thu, 26 Aug 2004, Stefan Stürke wrote:

> Mark S. Mathews wrote:
>> Hey Folks,
>> I've got an mpc850 based setup running 2.4.27 that, under certain
>> circumstances, hangs in the the m8xx_restart() function (instead of
>> rebooting) when I issue the usermode reboot cmd.
>> I've traced all through the path and confirmed that yes, it is hanging in
>> this function.  ;-)
> Maybe you can have a look at your boot flash when you enter the
> m8xx_restart() function. I had a similar problem and found that
> my boot flash was in read status state in that moment, so it was
> impossible to fetch the correct programm code after reset.
> HTH,
> Stefan
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Mark S. Mathews

AbsoluteValue Systems      Web:    http://www.linux-wlan.com
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