Bug 1290983
| Summary: | Kernel only wakes 1 CPU Core, the other remain sleeping! | ||||||||
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| Product: | [Fedora] Fedora | Reporter: | Ali Akcaagac <aliakc> | ||||||
| Component: | kernel | Assignee: | Kernel Maintainer List <kernel-maint> | ||||||
| Status: | CLOSED EOL | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||||
| Severity: | unspecified | Docs Contact: | |||||||
| Priority: | unspecified | ||||||||
| Version: | 22 | CC: | gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda, mchehab | ||||||
| Target Milestone: | --- | ||||||||
| Target Release: | --- | ||||||||
| Hardware: | i686 | ||||||||
| OS: | Linux | ||||||||
| Whiteboard: | |||||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||||
| Doc Text: | Story Points: | --- | |||||||
| Clone Of: | Environment: | ||||||||
| Last Closed: | 2016-07-19 18:35:50 UTC | Type: | Bug | ||||||
| Regression: | --- | Mount Type: | --- | ||||||
| Documentation: | --- | CRM: | |||||||
| Verified Versions: | Category: | --- | |||||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||||
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Description
Ali Akcaagac
2015-12-12 12:19:11 UTC
I wanted to come back to this issue here. Every now and then I encounter heavy "sluggishness" of the behaviour of my notebook and today this happened again. After some investgation I figured out that the Linux Kernel isn't able to wake up both CPUs correctly. The E-450 CPU from AMD is a dual core cpu running 2 cores at 1.66ghz each. The whole day it seems that my system only ran on one core because the other one couldn't be woken up. After some log investgation as well as running nmon shows only one core running. I would consider this quite *critical* now. Kernel 4.3.4-200 Please have a look at the attachments Created attachment 1119912 [details]
cpuinfo
Created attachment 1119913 [details]
journalctl
The journal was grepped for "cpu" and this is the output. As I was able to figure out, the CPU cores got initialized correctly on the 29th and 30rd of january. Today 31rd of january, Linux only woke up one core - presenting me with total sluggishness.
Expected solution would be that Linux wakes up all cores correctly (or none). But not half of it.
Jan 29 09:51:20 localhost.localdomain kernel: Initializing CPU#1 Jan 29 09:51:20 localhost.localdomain kernel: x86: Booted up 1 node, 2 CPUs > core woke up correctly Jan 30 10:54:41 localhost.localdomain kernel: Initializing CPU#1 Jan 30 10:54:41 localhost.localdomain kernel: x86: Booted up 1 node, 2 CPUs > core woke up correctly Jan 31 09:53:33 localhost.localdomain kernel: smpboot: do_boot_cpu failed(-1) to wakeup CPU#1 Jan 31 09:53:33 localhost.localdomain kernel: x86: Booted up 1 node, 1 CPUs > core failed! Fedora 22 changed to end-of-life (EOL) status on 2016-07-19. Fedora 22 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed. |