On Tue, 11 Jan 2005 14:10:19 +0100, Pavel Machek wrote: >> > Looking harder, in arch/i386/kernel/apm.c the system time is also >> > saved and restored in a very similar way to timer_suspend/resume. >> > Would this account for the time drift in APM mode? (sleep time being >> > accounted for twice?) >> >> No, apm.c's update to xtime is absolute, just like time.c's. >> Doing both is pointless but not harmful. (I've already tried >> with apm.c's xtime update commented out, but the time-warp >> bug remained.) >> >> My 0.02 SEK says it's the jiffies update that's broken. > >Okay, can you > >* kill jiffie update (x86-64, too) >* remove apm.c variant >* test it (or make someone test it) with apm? > >I now see the drift with acpi, too :-(. I can do the acpi testing...
I'm no longer seeing any time jumps after resumes with the 2.6.11-rc1 kernel. It looks like the wall_jiffies change in time.c fixed the bug. /Mikael - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
