On Fri, Nov 13, 2020 at 11:10 PM Samuel Sieb <samuel@xxxxxxxx> wrote: > > On 11/13/20 9:39 PM, Tim via users wrote: > > On Fri, 2020-11-13 at 21:24 +0530, Sreyan Chakravarty wrote: > >> I have no idea why this is happening when I have 8GB of free swap space : > >> > >> $ free -h > >> total used free shared buff/cache available > >> Mem: 7.7Gi 1.6Gi 4.1Gi 269Mi 2.0Gi 5.6Gi > >> Swap: 8.0Gi 0B 8.0Gi > >> > >> My RAM is also 8GB. > > > > The old recommendation always was to have *MORE* swap space than RAM. > > That's a good point. The memory usage is quite low at that point, but > if he ever ended up using swap space, there could easily not be enough > to hibernate. However, it should work in this current case. Hibernation is pretty complicated. What should happen is the kernel evicts dirty pages to swap in order to free up 50% RAM. Then the kernel uses that free memory to create the hibernation image and compress it and then it gets written into swap. So there are some opportunities for it to fail. There's a bunch of tests to do to help narrow down the problem. https://www.kernel.org/doc/html/latest/power/basic-pm-debugging.html Note that swapfiles on Btrfs additionally need an offset boot parameter added. https://bugzilla.kernel.org/show_bug.cgi?id=202803#c9 -- Chris Murphy _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx
