Messages in this thread | | | Date | Sun, 11 Jan 2004 00:55:06 -0800 | From | Simon Kirby <> | Subject | Re: 2.4.24 SMP lockups |
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On Sat, Jan 10, 2004 at 02:40:49PM -0800, Andrew Morton wrote:
> Presumably it's spinning on the lock with interrupts enabled. Make that > the `NMI' counters in /proc/interrupts are incrementing for all CPUs.
Actually, on one of the boxes it doesn't seem to be working at all:
activating NMI Watchdog ... done. testing NMI watchdog ... CPU#0: NMI appears to be stuck!
This is on a Tyan Dual AMD MPX board with two MP 2000+ CPUs. /proc/interrupts shows:
CPU0 CPU1 0: 4897433 4904751 IO-APIC-edge timer 1: 1 1 IO-APIC-edge keyboard 2: 0 0 XT-PIC cascade 8: 1 0 IO-APIC-edge rtc 16: 699524 700761 IO-APIC-level dpti0 19: 12480119 12480207 IO-APIC-level eth0 NMI: 0 0 LOC: 9801455 9801319 ERR: 0 MIS: 13
I'll try reenabling it on the other (Intel) boxes where I think it actually does work, and see if anything results.
> sysrq-T would be best.
I'll do the serial console dance next time and get some sysrq-T output.
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