Bug 168225
| Summary: | P4/Xeon CPU frequency control support (P1) | ||||||
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| Product: | Red Hat Enterprise Linux 3 | Reporter: | Issue Tracker <tao> | ||||
| Component: | kernel | Assignee: | Brian Maly <bmaly> | ||||
| Status: | CLOSED WONTFIX | QA Contact: | Brian Brock <bbrock> | ||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | high | ||||||
| Version: | 3.0 | CC: | jnomura, kueda, petrides, tao | ||||
| Target Milestone: | --- | Keywords: | FutureFeature | ||||
| Target Release: | --- | ||||||
| Hardware: | All | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Enhancement | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2006-03-30 20:29:01 UTC | Type: | --- | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Bug Depends On: | |||||||
| Bug Blocks: | 170417, 185135, 186960 | ||||||
| Attachments: |
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Description
Issue Tracker
2005-09-13 17:19:57 UTC
From User-Agent: XML-RPC The following patch is required for RHEL3 cpufreq to function properly. The original code tried to call cpufreq_set_policy() NR_CPUS(=32) times and fail, regardless of the number of CPUs installed in the system. The patch solves this problem by calling cpu_online() to check if the CPU exists before calling cpufreq_set_policy(). Status set to: Waiting on Tech This event sent from IssueTracker by ltroan issue 79218 From User-Agent: XML-RPC This looks like Intel SpeedStep which is in U6. Specific request however is to enable "CONFIG_CPU_FREQ" and "CONFIG_CPU_FREQ_24_API" and "CONFIG_X86_P4_CLOCKMOD" in the kernel. Issue escalated to Feature-RHEL by: ltroan. ltroan assigned to issue for NEC-Engineering. Category set to: Kernel::Subsystems Internal Status set to 'Waiting on Product Mgmt' This event sent from IssueTracker by ltroan issue 79218 Created attachment 118767 [details]
linux-2.4.21-cpufreq-fix.patch
> > NEC, please confirm that this feature is included in RHEL4U2 per "Event posted
> > 09-13-2005 07:21pm by tatsu.nec.com" and close this issue.
> >
> The code is there, but it is not configured in the kernel (unless this is
> changed after kernel-2.6.9-22.EL). The feature request is to enable the
> configuration CONFIG_CPU_FREQ_PROC_INTF in the kernel.
This request is to provide equivalent function in RHEL3U7.
Adding PM ACK since this is different than the Intel SpeedStep already delivered.
Can we get a QA ACK on this? The feature request is to enable the configuration CONFIG_CPU_FREQ_PROC_INTF in the kernel. Moving to RHEL3 U8 Proposed list. NEC comments that they have blades that run very hot without the ability to scale back the CPU frequency (and therefore the power) during idle times. In RHEL4 with the 2.6 kernel there are other mechanisms to provide this capability but in RHEL3 there is no other option. The reason we need this feature is as mentioned in the previous comment.
> Bug is changed to "NEC Confidential" due to some of the comment content (was
> public). If NEC is OK with opening this bug to the public, we can reopen it.
Yes, it's OK to reopen this bug to public.
Engineering is not committing this for RHEL3, the changes are too large to be considered for U8. Closing this request out as wont fix. |