Messages in this thread | | | Date | Mon, 7 May 2007 19:54:26 -0700 | From | Greg KH <> | Subject | Re: [linux-pm] Re: [patch] suspend/resume debugging: device filter |
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On Sat, May 05, 2007 at 12:08:55PM +0200, Pavel Machek wrote: > Hi! > > > > Here's a (compile tested only) patch that does this on a per-device > > > basis, which is smaller, and should work just as well as your patch. > > > > > > It creates a new file in the power/ directory for every device called > > > "can_suspend". Write a '0' to it to prevent that device from being > > > suspended. > > > > > > Does this work for you? > > > > yeah, i was able to use this too to debug suspend/resume problems. But > > i've added the check to the resume path too - for example sw-suspend > > does a resume of devices during its suspend cycle, cutting off much of > > the netconsole output. > > > > which makes the can_suspend flag mis-named - perhaps rename it to > > exclude_pm ? > > debug_exclude_pm? I do not want people playing with it, then > complaining that they broke the suspend.
I can make the attribute only show up if CONFIG_DEBUG_DRIVER is enabled. Would that be better? We can also write to the syslog when the attribute is changed that they just might have broken something.
thanks,
greg k-h - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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