Description of problem: -------------------------------- While testing some Power management commands I found that "pm-hibernate" is not working as expected. Ideally it should hibernate the system & I should be able to resume the system later. On a system installed with Fedora 20, after issuing command "pm-hibernate" the system is getting rebooted & coming up again automatically. How reproducible: Always. Version-Release number of selected component (if applicable): [root@fedora2 ~]# uname -a Linux fedora2 3.11.0-300.fc20.ppc64p7 #1 SMP Thu Sep 5 16:13:50 MST 2013 ppc64 ppc64 ppc64 GNU/Linux Steps to Reproduce: ---------------------------- 1) Install Fedora 20 on a "junoiocplus2-lp4" Lpar. 2) Issue command "pm-hibernate" 3) System will reboot & come up automatically. Actual results: System reboots Expected results: System correctly hibernates. System correctly resumes. Additional info: Attaching serial console output. == Comment: # - Brent J. Baude <baude.com> - == is this a valid test? this is a new requirement for me. maybe I missed it before? == Comment: # - Shubham Goyal <shubgoya.com> - == (In reply to comment #3) > Can you please check the out put of > * cat /sys/power/state -----> If there is 'disk' in the o/p then it supports > hibernate. > * swapon -s > * free Hi Vaishnavi, I already checked that earlier & I think this target should support hibernate. 1) [root@fedora2 ~]# cat /sys/power/state freeze mem disk 2) [root@fedora2 ~]# swapon -s Filename Type Size Used Priority /dev/dm-0 partition 4210624 0 -1 3) [root@fedora2 ~]# free total used free shared buffers cached Mem: 3635584 818112 2817472 8000 68672 360320 -/+ buffers/cache: 389120 3246464 Swap: 4210624 0 4210624 Thanks...
Created attachment 823401 [details] Serial console logs from affected machine
Please note pm-utils are going to be deprecated. Suspend/hibernate/resume is now handled by systemd in the userspace, i.e. see commands 'systemctl suspend' (hibernate), but I guess your problem is in the kernel, i.e. does it work by issuing: # echo disk > /sys/power/state ?
Same problem here with 3.11.7-300.fc20.x86_64 echo disk > /sys/power/state also doesn't work, seems that it didn't check the swap partition when booting. but add kernel parameter resume=<swap_partition> works, system correctly resumes. Thanks.
neige: I guess your problem is in dracut, it should handle this, please open new bug against dracut.
------- Comment From shubgoya.com 2013-11-19 10:46 EDT------- (In reply to comment #9) > Please note pm-utils are going to be deprecated. Suspend/hibernate/resume is > now handled by systemd in the userspace, i.e. see commands 'systemctl > suspend' (hibernate), but I guess your problem is in the kernel, i.e. does > it work by issuing: > # echo disk > /sys/power/state? I got below messages in serial console after issuing above command in F20-Beta: tuleta4u-lp3 login: [39384.190158] PM: Syncing filesystems ... done. [39384.259768] Freezing user space processes ... (elapsed 0.009 seconds) done. [39384.269552] PM: Preallocating image memory... done (allocated 20275 pages) [39385.870058] PM: Allocated 1297600 kbytes in 1.60 seconds (811.00 MB/s) [39385.870062] Freezing remaining freezable tasks ... (elapsed 0.009 seconds) done. [39385.889828] Suspending console(s) (use no_console_suspend to debug) I was able to reclaim the system after a restart from HMC.
------- Comment From vaish123.com 2014-10-08 11:07 EDT------- Any updates on the bug ?
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