Re: IO_APIC NMI Watchdog not handled by suspend/resume.

From: Pavel Machek
Date: Thu Nov 11 2004 - 06:15:11 EST


> Tracking down SMP problems, I've found that if you boot with
> nmi_watchdog=1 (IO_APIC), the watchdog continues to run while suspend is
> doing sensitive things like restoring the original kernel. I don't know
> enough to provide a patch to disable it so thought I'd ask if someone
> could volunteer to fix this?

When we debated this at x86-64 lists, our conclusion was 'critical
section should take less than 5 seconds, and watchdog only touches its
own variables, so stopping it should not be needed'. [on x86-64,
watchdog is enabled even on up].

People were complaining that M$ turns users into beta-testers...
...jr ghea gurz vagb qrirybcref, naq gurl frrz gb yvxr vg gung jnl!
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at