Bug 470454
| Summary: | CPU C3 state duration time stays at zero on Stoakley platform | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 5 | Reporter: | Song, Youquan <youquan.song> |
| Component: | kernel | Assignee: | Brian Maly <bmaly> |
| Status: | CLOSED NOTABUG | QA Contact: | Martin Jenner <mjenner> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 5.3 | CC: | andriusb, dzickus, jane.lv, jvillalo, rpacheco |
| Target Milestone: | rc | Keywords: | OtherQA |
| Target Release: | --- | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2009-01-21 14:00:34 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: | 480792 | ||
After investigation, we find that it is stoakley BIOS issues to support Cstates, so we can close it. |
Description of problem: Stoakley platform with BIOS 7DWN8018. RHEL5.3 Beta kernel-2.6.18-120.el5. The CPU C3 state duration time keep zero and do not work at all. I check that upstream kernel, the CPU C3 state work normally. Version-Release number of selected component (if applicable): How reproducible: Steps to Reproduce: 1. cat /proc/acpi/processor/CPU*/power 2. 3. Actual results: [root@localhost ~]# cat /proc/acpi/processor/CPU*/power active state: C2 max_cstate: C8 bus master activity: 02020202 states: C1: type[C1] promotion[C2] demotion[--] latency[000] usage[00003760] duration[00000000000000000000] *C2: type[C2] promotion[C3] demotion[C1] latency[040] usage[00770527] duration[00000000002585035191] C3: type[C3] promotion[--] demotion[C2] latency[060] usage[00054433] duration[00000000000000000000] active state: C2 max_cstate: C8 bus master activity: 04040404 states: C1: type[C1] promotion[C2] demotion[--] latency[000] usage[00001960] duration[00000000000000000000] *C2: type[C2] promotion[C3] demotion[C1] latency[040] usage[00769334] duration[00000000002584569360] C3: type[C3] promotion[--] demotion[C2] latency[060] usage[00026939] duration[00000000000000000000] active state: C1 max_cstate: C8 bus master activity: 08080809 states: *C1: type[C1] promotion[C2] demotion[--] latency[000] usage[00005933] duration[00000000000000000000] C2: type[C2] promotion[C3] demotion[C1] latency[040] usage[00767956] duration[00000000002576405129] C3: type[C3] promotion[--] demotion[C2] latency[060] usage[00055193] duration[00000000000000000000] active state: C2 max_cstate: C8 bus master activity: 10101011 states: C1: type[C1] promotion[C2] demotion[--] latency[000] usage[00003070] duration[00000000000000000000] *C2: type[C2] promotion[C3] demotion[C1] latency[040] usage[00768317] duration[00000000002576969832] C3: type[C3] promotion[--] demotion[C2] latency[060] usage[00027256] duration[00000000000000000000] active state: C2 max_cstate: C8 bus master activity: 40404040 states: C1: type[C1] promotion[C2] demotion[--] latency[000] usage[00002550] duration[00000000000000000000] *C2: type[C2] promotion[C3] demotion[C1] latency[040] usage[00769339] duration[00000000002583499021] C3: type[C3] promotion[--] demotion[C2] latency[060] usage[00055484] duration[00000000000000000000] active state: C2 max_cstate: C8 bus master activity: 01010101 states: C1: type[C1] promotion[C2] demotion[--] latency[000] usage[00001890] duration[00000000000000000000] *C2: type[C2] promotion[C3] demotion[C1] latency[040] usage[00768216] duration[00000000002580914273] C3: type[C3] promotion[--] demotion[C2] latency[060] usage[00027265] duration[00000000000000000000] active state: C2 max_cstate: C8 bus master activity: 80808081 states: C1: type[C1] promotion[C2] demotion[--] latency[000] usage[00003040] duration[00000000000000000000] *C2: type[C2] promotion[C3] demotion[C1] latency[040] usage[00767540] duration[00000000002578141402] C3: type[C3] promotion[--] demotion[C2] latency[060] usage[00054756] duration[00000000000000000000] active state: C2 max_cstate: C8 bus master activity: 20202020 states: C1: type[C1] promotion[C2] demotion[--] latency[000] usage[00002020] duration[00000000000000000000] *C2: type[C2] promotion[C3] demotion[C1] latency[040] usage[00765627] duration[00000000002570985487] C3: type[C3] promotion[--] demotion[C2] latency[060] usage[00026504] duration[00000000000000000000] Expected results: CPU C3 state has duration time. Additional info: