On 5/18/2011 7:11 PM, Gavin Flower wrote: We're getting pretty OT here... > What obvious thing have I done, or not done, here? > > What should I do now? > > (I am not panicking, because I can always revert back...) > > I tried to implement you suggestion, > > # swapoff -a > # dd if=/dev/zero of=/swapfile1 bs=1K count=16M > 16777216+0 records in > 16777216+0 records out > 17179869184 bytes (17 GB) copied, 119.642 s, 144 MB/s > # mkswap /swapfile1 > Setting up swapspace version 1, size = 16777212 KiB > no label, UUID=9afbf206-9a79-45b8-ad4b-148f71c440d7 17GB is a bit ridiculous for swap, especially on a single user machine. > # swapon /swapfile1 > # cp /etc/fstab /etc/fstab-20110519 > > in > /etc/fstab > I replaced > UUID=654f3b90-ed2c-4de6-9f2a-e2ad65fd1af1 swap swap defaults 0 0 > by > /swapfile1 swap swap defaults 0 0 > > The log message for the swapon was: > May 19 11:27:38 saturn kernel: [38075.451398] Adding 16777212k swap on /swapfile1. Priority:-1 extents:159 across:24068092k Looks good. > However, it failed to hibernate. The log messages were: > May 19 11:44:43 saturn kernel: [39043.115385] sd 1:0:0:0: [sdb] Starting disk > May 19 11:44:43 saturn kernel: [39043.128453] sd 2:0:0:0: [sdc] Starting disk > May 19 11:44:43 saturn kernel: [39043.140116] sd 3:0:0:0: [sdd] Starting disk > May 19 11:44:43 saturn kernel: [39043.150889] sd 5:0:0:0: [sde] Starting disk > May 19 11:44:43 saturn kernel: [39043.165729] PM: thaw of devices complete after 756.642 msecs > May 19 11:44:43 saturn kernel: [39043.322491] PM: Saving image data pages (809839 pages) ... done > May 19 11:44:43 saturn kernel: [39094.461575] PM: Wrote 3239356 kbytes in 51.13 seconds (63.35 MB/s) > May 19 11:44:43 saturn kernel: [39094.465739] PM: S > May 19 11:44:43 saturn kernel: [39094.482407] PM: Swap header not found! > May 19 11:44:43 saturn kernel: [39094.485188] | > May 19 11:44:43 saturn kernel: [39094.706731] Restarting tasks ... done. > May 19 11:44:43 saturn NetworkManager[1501]: <info> wake requested (sleeping: yes enabled: yes) > May 19 11:44:43 saturn NetworkManager[1501]: <info> waking up and re-enabling... > May 19 11:44:43 saturn NetworkManager[1501]: <info> (eth0): now managed I've never used hibernation, but a quick Google search gives lots of information on this. Google "linux swap file hibernate". I read one thread from 2008, in which folks easily solved this with a kernel update or switching the filesystem where they stored the swap file. I would think 3 years later any bugs in the hibernation code have been squashed and this should work flawlessly. What kernel/distro version are you running? Anything recent should be able to handle hibernation to a swap file. -- Stan -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
