|Summary:||hibernate fails to allocate memory|
|Component:||pm-utils||Assignee:||Jaroslav Škarvada <jskarvad>|
|Status:||CLOSED NOTABUG||QA Contact:||Fedora Extras Quality Assurance <extras-qa>|
|Version:||13||CC:||jskala, jskarvad, opensource, pknirsch, richard|
|Fixed In Version:||Doc Type:||Bug Fix|
|Doc Text:||Story Points:||---|
|Last Closed:||2010-09-13 07:27:13 UTC||Type:||---|
|oVirt Team:||---||RHEL 7.3 requirements from Atomic Host:|
Description long 2010-06-22 14:12:10 UTC
Created attachment 425939 [details] pm-suspend.log Description of problem: Have system set to hibernate after a period of inactivity. Some times it fails to hibernate complaining about memory problems. Various logs are attached Version-Release number of selected component (if applicable): pm-utils-126.96.36.199-1.fc13.x86_64 How reproducible: 50% of time. Steps to Reproduce: 1. wait until system tries to hibernate on its own 2. 3. Actual results: system does not hibernate but keeps running Expected results: system hibernates Additional info:
Comment 3 Jaroslav Škarvada 2010-08-25 13:38:35 UTC
Looks like the kernel cannot allocate enough memory to suspend. AFAIK there should be half of memory free before suspend, if there is not enough memory the kernel should swap to make a room. Maybe you have a lot of memory mlocked (not allowed to swap)? If yes - increase your RAM or do not use the software mlocking your memory.
Comment 4 long 2010-08-27 14:48:52 UTC
This is not currently happening (different hibernation failure now) but I have to say if this is the way it really works that is completely user unfriendly and almost worthless. User shouldn't have to care what their memory usage is.
Comment 5 Jaroslav Škarvada 2010-08-27 15:47:29 UTC
That's from design. You need not care, mostly the kernel manages this correctly. The only thing you can not is to mlock more than 1/2 of memory. For more details please see kernel documentation - /usr/share/doc/kernel-doc*/Documentation/powers/swsusp.txt). The mlocked memory can not be swapped. If you need to have so much memory resident you should consider upgrading your memory. There is nothing to fix in pm-utils, that's all kernel stuff.
Comment 6 Jaroslav Škarvada 2010-09-13 07:27:13 UTC
Not pm-utils bug.