Mandeep Singh Baines baf48f6577 softlock: fix false panic which can occur if softlockup_thresh is reduced ...

At run-time, if softlockup_thresh is changed to a much lower value,
touch_timestamp is likely to be much older than the new softlock_thresh.

This will cause a false softlockup to be detected. If softlockup_panic
is enabled, the system will panic.

The fix is to touch all watchdogs before changing softlockup_thresh.

Signed-off-by: Mandeep Singh Baines <msb@google.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

2009-01-14 11:48:07 +01:00

9.1 KiB

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