From: Jimmy Blair <blueskyjb@verizon.net>
To: linuxppc-embedded@ozlabs.org
Subject: Problem getting machine check reset on 8245
Date: Tue, 16 Jan 2007 17:53:47 -0800 [thread overview]
Message-ID: <45AD81AB.4010709@verizon.net> (raw)
I implemented do_reset in Linux 2.6 using the
reset method of U-Boot -- turn off the MMU and write
to an invalid address. Sometimes I the desired reboot.
If I change the code a bit (e.g. put a 'nop' just ahead
of turning off the MMU), I'll get an "Invalid floating
point instruction" exception. How is that possible??
I didn't thing printk shouldn't would work if the MMU is turned off.
Has anybody seen anything like this?? Thanks!
reply other threads:[~2007-01-17 2:54 UTC|newest]
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