"Rafael J. Wysocki" <rjw@xxxxxxx> writes: > On Saturday 31 October 2009, Ferenc Wagner wrote: > >> Heh, maybe, but the version compiled from Rafael's git tree prints the >> ratio all right, and its value is even positive and less than 1. So I >> confirm that the ratio issue is fixed. I'll be running with this >> version from now on, and if it exhibits the same original issue, I'll >> switch to shutdown mode and gather some experience running that. > > Well, the problem you reported is a kernel issue and switching to the newer > user space is not likely to help. Well, I haven't had my hopes overly high, but wanted to have a concrete baseline. So: with the new s2disk I got a freeze again after S|. After a manual power off and a successful resume, I switched to shutdown mode and hibernated again, and got the exact same freeze (apart from a slightly different image size). Power off, resume, switch to reboot mode, hibernate, and this worked. Switch back to shutdown, now that worked as well... Eh. In my earlier bug report I think I noted that after such a hibernation failure a straight shutdown didn't power off the computer as it otherwise does, which feels consistent with the above. With the uswsusp 0.7, a typical freeze looked like this: s2disk: Snapshotting system s2disk: System snapshot ready. Preparing to write s2disk: Image size: 240872 kilobytes s2disk: Free swap: 1333596 kilobytes s2disk: Saving 60217 image data pages (press backspace to abort) ... 100% done (60217 pages) s2disk: Compression ratio -63208.85 S| With the new version the ratio is 0.42 with similar numbers, which sounds sane at least. However, 60217 * 4 = 240868 = 240872 - 4, wasn't the number of saved pages one off? The new version seems to get this right, though. Now something else, which may or may not be related. I supervise a computing farm running a very old OS: Debian Sarge. The kernel was somewhat newer: 2.6.24 until recently, when new machines arrived to the lab, which couldn't boot that 2.6.24 kernel. So I upgraded to 2.6.31, which works quite well, apart from one thing: halt doesn't power off the machines anymore. All the same under 2.6.32-rc5: they simply freeze after reaching halt -d -f -i -h -p in the shutdown sequence. I'm pretty much stumped here, but will try to get some SysRq dumps out of these machines at least. -- Thanks, Feri. _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
