| Summary: | khugepaged prevents suspend | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Ben Liblit <liblit> |
| Component: | kernel | Assignee: | Kernel Maintainer List <kernel-maint> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 15 | CC: | gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | kernel-2.6.41.9-1.fc15 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2012-01-07 23:05:19 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
patch added for next build. kernel-3.1.7-1.fc16 has been submitted as an update for Fedora 16. https://admin.fedoraproject.org/updates/kernel-3.1.7-1.fc16 kernel-2.6.41.7-1.fc15 has been submitted as an update for Fedora 15. https://admin.fedoraproject.org/updates/kernel-2.6.41.7-1.fc15 Package kernel-2.6.41.7-1.fc15: * should fix your issue, * was pushed to the Fedora 15 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing kernel-2.6.41.7-1.fc15' as soon as you are able to, then reboot. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2012-0096/kernel-2.6.41.7-1.fc15 then log in and leave karma (feedback). kernel-3.1.7-1.fc16 has been pushed to the Fedora 16 stable repository. If problems still persist, please make note of it in this bug report. kernel-2.6.41.8-1.fc15 has been submitted as an update for Fedora 15. https://admin.fedoraproject.org/updates/kernel-2.6.41.8-1.fc15 kernel-2.6.41.9-1.fc15 has been submitted as an update for Fedora 15. https://admin.fedoraproject.org/updates/kernel-2.6.41.9-1.fc15 kernel-2.6.41.9-1.fc15 has been pushed to the Fedora 15 stable repository. If problems still persist, please make note of it in this bug report. |
My laptop, a ThinkPad X61 running kernel-3.1.6-1.fc16.i686, frequently fails to suspend. The suspend process begins, but eventually it seems to give up and returns to the regular running state. I don't think it fails every time, but if not then it certainly fails much more often than it succeeds. After such a failed suspend, messages in "/var/log/messages" reveal that khugepaged did not freeze after 20 seconds: [47245.252131] Freezing of tasks failed after 20.00 seconds (1 tasks refusing to freeze, wq_busy=0): [47245.252182] khugepaged S f38b5e98 0 28 2 0x00800000 [47245.252190] f38b5ea8 00000046 00000002 f38b5e98 00000001 f4100c90 00000000 c0c59ec0 [47245.252201] c0c59ec0 2478757e 00002af8 f4e06ec0 f38b8000 f4100c90 c04e46b0 0000000a [47245.252212] f38b5e64 c04e46c3 f38b5e7c 00000000 c0baed40 004352da 0000000a 00000003 [47245.252222] Call Trace: [47245.252235] [<c04e46b0>] ? page_alloc_cpu_notify+0x40/0x40 [47245.252241] [<c04e46c3>] ? drain_local_pages+0x13/0x20 [47245.252247] [<c04e5bdb>] ? __alloc_pages_nodemask+0x51b/0x6f0 [47245.252254] [<c090b795>] schedule+0x35/0x50 [47245.252259] [<c090bbc4>] schedule_timeout+0x124/0x290 [47245.252266] [<c04595d0>] ? lock_timer_base+0x60/0x60 [47245.252272] [<c090bd8a>] schedule_timeout_interruptible+0x1a/0x20 [47245.252279] [<c051bd76>] khugepaged+0x856/0xe00 [47245.252287] [<c046a820>] ? remove_wait_queue+0x40/0x40 [47245.252293] [<c051b520>] ? collect_mm_slot+0x70/0x70 [47245.252299] [<c046a1cd>] kthread+0x6d/0x80 [47245.252304] [<c046a160>] ? kthread_worker_fn+0x140/0x140 [47245.252311] [<c09148be>] kernel_thread_helper+0x6/0x10 This is apparently what caused the entire suspend to be aborted. Discussion at <https://lkml.org/lkml/2011/11/9/312> might be related, and might include a patch.