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PM / sleep: Increase default DPM watchdog timeout to 60 

commit fff3b16d27 upstream.

Many harddisks (mostly WD ones) have firmware problems and take too
long, more than 10 seconds, to resume from suspend.  And this often
exceeds the default DPM watchdog timeout (12 seconds), resulting in a
kernel panic out of sudden.

Since most distros just take the default as is, we should give a bit
more safer value.  This patch increases the default value from 12
seconds to one minute, which has been confirmed to be long enough for
such problematic disks.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=91921
Fixes: 70fea60d88 (PM / Sleep: Detect device suspend/resume lockup and log event)
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
wifi-calibration
Takashi Iwai 2015-06-25 00:35:16 +02:00 committed by Greg Kroah-Hartman
parent c791ad1e41
commit 01fed2338a
1 changed files with 1 additions and 1 deletions
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kernel/power/Kconfig
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@ -187,7 +187,7 @@ config DPM_WATCHDOG
config DPM_WATCHDOG_TIMEOUT
int "Watchdog timeout in seconds"
range 1 120
default 12
default 60
depends on DPM_WATCHDOG
config PM_TRACE