On Tuesday, 20 March 2007 20:52, Tim Dijkstra wrote: > On Tue, 20 Mar 2007 16:38:43 +0100 > Pavel Machek <[EMAIL PROTECTED]> wrote: > > > On Tue 2007-03-20 11:37:36, Tim Dijkstra wrote: > > > Hi, > > > > > > I just noticed I have misunderstood how the machine is put in S3 for > > > s2both. I thought it would use a function from s2ram.c to do that, but > > > it seems it uses > > > ioctl(snaptshot_fd, SNAPSHOT_S2RAM, 0); > > > > > > Just to be sure, this will probably do precisely the same thing as echo > > > 'mem > /sys/power/state', or not? > > > > Not _precisely_. It avoids running freezer because processes are > > already frozen. > > OK, to get concrete, I'm investigating if we can get s2both for > powerpc. Johannes Berg tells me that on most 32bit apple laptops 'echo > mem > /sys/power/state' does what it is supposed to. Does this mean that > ioctl(snaptshot_fd, SNAPSHOT_S2RAM, 0); will do too? I can just ask > people to try that out of course... or I could dive in the kernel code, > but asking the experts is easier;)
Well, it _should_ work in the same way as 'echo mem > /sys/power/state', except for the freezing of processes, but currently it doesn't due to a bug I've just found (nonboot CPUs are not disabled before suspending). I'm working on a fix. Greetings, Rafael ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Suspend-devel mailing list Suspend-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/suspend-devel
