Bug 875988
| Summary: | Linux in ACPI mode not working properly on Shuttle SH55J2 + i7-870 | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | J. Bruce Fields <bfields> |
| Component: | kernel | Assignee: | Kernel Maintainer List <kernel-maint> |
| Status: | CLOSED INSUFFICIENT_DATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 18 | CC: | gansalmon, itamar, jonathan, kernel-maint, len.brown, madhu.chinakonda |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2013-07-01 13:10:27 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: | |
| Embargoed: | |||
Is this still an issue with 3.8.x? This bug is being closed with INSUFFICIENT_DATA as there has not been a response in 2 weeks. If you are still experiencing this issue, please reopen and attach the relevant data from the latest kernel you are running and any data that might have been requested previously. |
When booting with intel_idle.max_cstate=0, c-states aren't used: # ./turbostat -M 0xe2 sleep 1 cor CPU %c0 GHz TSC MSR 0x0E2 %c1 %c3 %c6 %pc3 %pc6 2.13 1.20 2.93 0x0000000000000000 97.87 0.00 0.00 0.00 0.00 0 0 3.61 1.20 2.93 0x0000000000000003 96.39 0.00 0.00 0.00 0.00 0 4 1.47 1.20 2.93 0x0000000000000003 98.53 1 1 6.14 1.20 2.93 0x0000000000000003 93.86 0.00 0.00 1 5 0.12 1.20 2.93 0x0000000000000003 99.88 2 2 0.42 1.20 2.93 0x0000000000000003 99.58 0.00 0.00 2 6 0.02 1.20 2.93 0x0000000000000003 99.98 3 3 5.21 1.20 2.93 0x0000000000000003 94.79 0.00 0.00 3 7 0.05 1.20 2.93 0x0000000000000003 99.95 1.001825 sec and turbostat run concurrently with a "cat /dev/zero >/dev/null &" shows the cpu never exceeding 3.2GHz. See bug 715485 for more background.