Bug 146628
Summary: | kernel 2.6.10-1.741_FC3 makes hard disk park MUCH too frequently | ||
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Product: | [Fedora] Fedora | Reporter: | Walter Neumann <wn67> |
Component: | kernel | Assignee: | Dave Jones <davej> |
Status: | CLOSED NOTABUG | QA Contact: | |
Severity: | medium | Docs Contact: | |
Priority: | medium | ||
Version: | 3 | CC: | pfrields, wtogami |
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: | 2005-03-03 01:19:25 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: |
Description
Walter Neumann
2005-01-31 03:15:55 UTC
Nothing to do with the IDE layer. We don't touch the power management registers except when the user asks via power management. Suspect it may be the ACPI code ? does booting with acpi=off make this problem go away ? No, booting with acpi=off makes no difference. Dave suggested checking power management in the BIOS. It was on. Turning it off fixes the issue. Seems my machine has pretty aggressive power management from the BIOS and earlier kernels hid that by disabling it. I don't think that turning the power management off is a proper solution as it will reduce the battery time. I think the real issue here is that the partition is not mounted correctly. With the default fstab configuration hard drive power management does not work because the drive get woken up all the time to write journal information and such. I am not sure how to confirm this. Does this sound plausible? Wouldn't the real solution be to change the file system parameters for the hard drive when power management is enabled so that this problem does not occur and we get the better battery life? I am not very experienced with Linux but I would be willing to help. Problems with running on battery -- short battery life and poor performance, is keeping me from using it more often. I have no problem with turning off power management in BIOS. Laptop-mode still gives me very good power-management, courtesy of linux rather than the BIOS. I get about 3 hours 40 minutes on battery. Anyway, this was not a linux bug -- it was that my BIOS/drive combination (in my OEM laptop) that gave overly aggressive power management. Other laptops probably don't have this problem, so can leave power management on in BIOS if they want. (If my laptop is typical, the BIOS setting was anyway overridden by kernels up to 2.6.9 but no longer in 2.6.10.) |