Messages in this thread | | | Date | Wed, 17 Nov 2004 18:31:18 +0100 | From | Joerg Sommrey <> | Subject | local-/io-apic nmi watchdog failing on S2466 |
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Hello,
I'm still having problems with nmi watchdog on my S2466 board. I tried lots of different configurations with a large number of 2.6 kernels (vanilla, -mm, -ac) all with the same result: no working nmi watchdog, neither with local- nor with io-apic. I still wonder if anybody out there has ever succeeded with a working nmi watchdog on Tyan Tiger MPX.
The symptoms are:
nmi_watchdog=1: =============== dmesg: testing NMI watchdog ... CPU#0: NMI appears to be stuck! /proc/interrupts: no NMI count
nmi_watchdog=2: =============== dmesg: testing NMI watchdog ... OK. /proc/interupts: NMI count increments recovery from lockup: none
nmi_watchdog=2 clock=pit: ========================= dmesg: testing NMI watchdog ... CPU#0: NMI appears to be stuck! /proc/interrupts: NMI count increments, but rate is ~ 1/20s recovery from lockup: none
The lockup-test is done with a little program that Ingo posted on this list:
int main(void) { iopl(3); while (1) asm("cli"); return 0; }
The only reaction I can see from this test: after some seconds (5+) the LEDs on the keyboard start blinking when nmi_watchdog=2 and clock!=pit. Always need to hit the reset button :-(
What else could I try? Are there any BIOS-settings relevant to a working nmi-watchdog? What information is needed to track down this problem?
Maybe it's the board's failure, but as there *are* counted NMIs I still hope there is a software solution to this problem.
Thanks, -jo
-- -rw-r--r-- 1 jo users 63 2004-11-17 17:45 /home/jo/.signature - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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