Re: sysctl interface to bootflags?

From: Thomas Hood (
Date: Wed Oct 10 2001 - 07:37:23 EST

On Wed, 2001-10-10 at 02:46, Dave Jones wrote:

> Ouch. Can you verify that the CMOS register its changing matches
> with what's listed in the BOOT record ?
> add a printk to bootflag.c to check.

I haven't rebooted since this happened; the error
occurred when I resumed from hibernation.

In any case, I suspect that the BIOS reset whatever
register it was that was incorrectly set. Here again
is the output of the sbf program that cause the problem.
I ran the "sbf-0.3" version of the program, modified
to ignore the parity error on the value read back from the

root@thanatos:/home/jdthood/src/sbf# ./a.out
BOOT @ 0x07fd0040
CMOS register: 0x33
Read current value := 0x88
Read updated value := 0x89

We need to come to a better understanding of what it's doing
differently from bootflag.c, which writes to the right place.


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This archive was generated by hypermail 2b29 : Mon Oct 15 2001 - 21:00:31 EST