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SubjectRe: [PATCH 1/2 v2] watchdog, nmi: Allow hardlockup to panic by default
On Mon,  7 Mar 2011 16:37:39 -0500 Don Zickus <dzickus@redhat.com> wrote:

> Add a Kconfig option to allow users to set the hardlockup to panic
> by default. Also add in a 'nmi_watchdog=nopanic' to override this.
>

Changelog forgot to tell us "why".

> Format: [state][,regs][,debounce][,die]
>
> nmi_watchdog= [KNL,BUGS=X86] Debugging features for SMP kernels
> - Format: [panic,][num]
> + Format: [panic,][nopanic,][num]

It would be better to support panic=[0|1], if that can be simply done
in a back-compatible fashion.

> static int __init hardlockup_panic_setup(char *str)
> {
> if (!strncmp(str, "panic", 5))
> hardlockup_panic = 1;
> + else if (!strncmp(str, "nopanic", 5))

s/5/7/

> + hardlockup_panic = 0;
> else if (!strncmp(str, "0", 1))
> watchdog_enabled = 0;
> return 1;



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