On Thursday, June 10, 2010, Michael Tokarev wrote: > 10.06.2010 03:42, Rafael J. Wysocki пишет: > > On Wednesday, June 09, 2010, Tino Keitel wrote: > >> Hi, > >> > >> as of kernel 2.6.34 I sometimes get a strange hang during suspend to > >> RAM. After echo mem> /sys/power/state, the suspend script hangs, Xorg > >> eats 100% CPU, and the desktop is frozen. I can kill the script and the > >> computer will then suspend and resume fine. The kernel log shows > >> nothing interesting when the hang happens: > >> > >> usblp0: removed > >> usbcore: deregistering interface driver dvb_usb_vp7045 > >> dvb-usb: Twinhan USB2.0 DVB-T receiver (TwinhanDTV Alpha/MagicBox II) > >> successfully deinitialized and disconnected. > >> PM: Syncing filesystems ... done. > > Sounds very much like the problem I have with 2.6.34 final. Did not > happen with 2.6.34-rc7 which suspended just fine, but happens quite > regularly on 2.6.34 final - not every suspend but each 2nd or 3rd > attempt. I stopped doing suspend-to-ram due to this, because it's > unreliable. Suspend-to-disk works just fine. Well, it would be helpful to check which commit between 2.6.34-rc7 and 2.6.34 final broke that for you (there were not too many commits between these two kernels, so it shouldn't be too much work). > >> Is this a known problem? > > > > No, it's not. > > > >> I had rock stable suspend with 2.3.33.x. The > >> computer is a Mac mini Core2 Duo with i945 graphics. I use KMS. I will > >> compile a kernel with suspend debug to get more information if the hang > >> happens next time. > > It's amd780g athlon-based machine here, with radeon graphics, also with KMS. > > > Yes, please try to get more information. > > Got it ;) That still doesn't really help to diagnose the problem. Rafael _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
