softlockup: allow panic on lockup

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allow users to configure the softlockup detector to generate a panic
instead of a warning message.

high-availability systems might opt for this strict method (combined
with panic_timeout= boot option/sysctl), instead of generating
softlockup warnings ad infinitum.

also, automated tests work better if the system reboots reliably (into
a safe kernel) in case of a lockup.

The full spectrum of configurability is supported: boot option, sysctl
option and Kconfig option.

it's default-disabled.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

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Ingo Molnar 2008-05-12 21:21:04 +02:00 • committed by Thomas Gleixner

parent 75d3bce2fc

commit 9c44bc03ff

5 changed files with 62 additions and 2 deletions

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11

kernel/sysctl.c

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