Hi All, FYI. The Pentium M APIC just needs an additional register access to keep the watchdog ticking. The additional access is not present in the 2.4 kernel, the attached nmic.patch file fixes the /usr/src/linux/arch/i386/kernel/nmi.c watchdog for Pentium M based processors for a 2.4 Linux kernel. Best regards, Simon. <<nmic.patch>> -----Original Message----- From: Simon Egerton Sent: 29 November 2004 17:27 To: Kernelnewbie ML Subject: NMI watchdog support for x86 Pentium base board Hello all, I'm trying to get the NMI watchdog working on a uni-processor x86 base board based around a Pentium M processor. I have the APIC functionality compiled into the kernel, and the nmi-watchdog=2. However, I get the "CPU#0: NMI appears to be stuck!" error message. I know the board I'm using has an IO APIC, but the BIOS does not support either MP tables or ACPI. What do I need to do to get the NMI watchdog working with this set up? Is it mandatory for the BIOS to support either MP tables or ACPI? I've attached the output from "dmesg" and my kernel ".config" file, and the output from "/proc/cpuinfo" Thanks and best regards, Simon. << File: config.txt >> << File: cpuinfo.txt >> << File: dmesg.txt >>
Attachment:
nmic.patch
Description: nmic.patch
