В Tue, 27 Jan 2015 17:33:19 +0000 (UTC) Andriy Gapon <a...@freebsd.org> пишет:
> Author: avg > Date: Tue Jan 27 17:33:18 2015 > New Revision: 277796 > URL: https://svnweb.freebsd.org/changeset/base/277796 > > Log: > hook userland threads suspend + resume into acpi suspend code > > Also, split power_suspend into power_suspend and > power_suspend_early. > power_suspend_early is called before the userland is frozen. > power_suspend is called after the userland is frozen. > > Currently only VT switching is hooked to power_suspend_early. > This is needed because switching away from X server requires its > cooperation, so obviously X server must not be frozen when that > happens. > Freezing userland during ACPI suspend is useful because not all > drivers correctly handle suspension concurrent with other activity. > This is especially applicable to drivers ported from other operating > systems that suspend all software activity between placing drivers > and hardware into suspended state. > In particular drm2/radeon (radeonkms) depends on the described > procedure. The driver does not have any internal synchronization > between suspension activities and processing of userland requests. > > Many thanks to kib for the code that allows to freeze and thaw all > userland threads. > > Note that ideally we also need to park / inhibit (non-special) > kernel threads as well to ensure that they do not call into drivers. > > MFC after: 17 days > Thank you for your work! acpiconf -s 3 works perfectly, but there is one problem. I use not the main timecounter kern.timecounter.hardware=HPET after turning on the power button does not occur laptop recovery hdac0 and it is likely that the same applies to the timer. Indirect evidence of this - it's a quick video playback, for example in flash on YouTube. dmesg_first : http://pastebin.com/a4gC5PGy dmesg_afterS3 : http://pastebin.com/vyHtrakZ my HW: pciconf -lvbce : https://bz-attachments.freebsd.org/attachment.cgi?id=148947 devinfo -vr : https://bz-attachments.freebsd.org/attachment.cgi?id=148948 Thanks. _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
