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authorRafael J. Wysocki <rjw@sisk.pl>2006-11-02 22:07:19 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-11-03 12:27:58 -0800
commitb918f6e62cd46774f9fc0a3fbba6bd10ad85ee14 (patch)
treed73dc0e8823c8445d84701cc3d527e0e34494a32 /fs/reiserfs
parent90d53909443b3986569b38ef145f09ea2359af75 (diff)
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[PATCH] swsusp: debugging
Add a swsusp debugging mode. This does everything that's needed for a suspend except for actually suspending. So we can look in the log messages and work out a) what code is being slow and b) which drivers are misbehaving. (1) # echo testproc > /sys/power/disk # echo disk > /sys/power/state This should turn off the non-boot CPU, freeze all processes, wait for 5 seconds and then thaw the processes and the CPU. (2) # echo test > /sys/power/disk # echo disk > /sys/power/state This should turn off the non-boot CPU, freeze all processes, shrink memory, suspend all devices, wait for 5 seconds, resume the devices etc. Cc: Pavel Machek <pavel@ucw.cz> Cc: Stefan Seyfried <seife@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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