Bug 134041
Summary: | Unnecessary and continual device probing overloads CPU and degrades application responsiveness. | ||||||
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Product: | [Fedora] Fedora | Reporter: | Ross Johnson <rpj> | ||||
Component: | kernel | Assignee: | Arjan van de Ven <arjanv> | ||||
Status: | CLOSED NOTABUG | QA Contact: | |||||
Severity: | high | Docs Contact: | |||||
Priority: | medium | ||||||
Version: | 2 | Keywords: | EasyFix | ||||
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: | 2004-09-30 05:49:39 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: | |||||||
Attachments: |
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Description
Ross Johnson
2004-09-29 06:50:36 UTC
Created attachment 104508 [details]
Output from ps showing hotplug processes
The system is an Intel Pentium 5 2.4GHz and it does appear to be the hotplug
scripts shown running at niceness -10 that are degrading responsiveness. I
haven't worked out why multiple usb.agent scripts need to run concurrently.
'install floppy /bin/true' in /etc/modprobe.conf will fix the floppy errors. As to why you're getting constant connect/disconnects from the USB printer, that sounds more like a kernel issue. Problem fixed! Thanks for the clue re kernel problem - I'm not familiar with how this all plays together. I rechecked the BIOS settings and set 'Plug & Play OS' = 'Yes', which appears to fix both problems (floppy module load attempt and USB printer connect/disconnect). The motherboard is an ASUS P4G8X series, and factory default P&P OS setting is 'No'. I also wasn't sure if Linux was Plug&Play compatible, so left the default setting alone when I originally set it up. The machine is dual-boot with Windows 2000, which appears to work fine with BIOS P&P=No. Red Hat 9 didn't appear to have problems initially either, although it did start losing the USB printer after an update at one stage if I recall correctly. |