On Mon 2007-08-27 00:45:08, Rafael J. Wysocki wrote: > On Sunday, 26 August 2007 21:38, Robert Hancock wrote: > > Andreas Steffan wrote: > > > Hallo everybody, > > > > > > I am running fedora core 7 on my Dell latitude D810 notebook (BIOS > > > rev A05). > > > > > > Since 2.6.21 I found that suspending (to disk and to ram) corrupts > > > the bios clock most of the time (not always). The corruption is > > > happening during suspend. When I enter the system bios right after > > > I switch the system back on, I find the bios clock is set to a time > > > far in the future (many years). I guess that problem is related to > > > the clock changes that where introduced with 2.6.21. > > > > > > Please let me know if you want me to provide further information to > > > get this problem fixed. > > > > > > If there is a known quirk to work around this problem, I would > > > really appreciate a hint. > > > > > > PS: I have not yet tried 2.6.22.4-65.fc7, but the latest 2.6.22 kernel > > > before showed the same behaviour for me. > > > > Please check if PM_TRACE is enabled in your kernel configuration. It > > will do this intentionally. > > Yes, but only if you have "1" in /sys/power/pm_trace ... Maybe we should add printk somewhere like "pm_trace used -> I corrupted CMOS clock for you, don't complain"... :-). Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
