Bug 478544 - Yanking gspca-based USB webcam when in use results in khubd eating CPU
Summary: Yanking gspca-based USB webcam when in use results in khubd eating CPU
Keywords:
Status: CLOSED RAWHIDE
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 10
Hardware: All
OS: Linux
low
medium
Target Milestone: ---
Assignee: Kernel Maintainer List
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2008-12-31 18:22 UTC by James
Modified: 2009-01-08 15:00 UTC (History)
2 users (show)

Fixed In Version: 2.6.28-3.fc11
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2009-01-08 15:00:36 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)

Description James 2008-12-31 18:22:56 UTC 
Description of problem:
I have a pac207-based webcam using the gspca driver:

usb 5-1: new full speed USB device using ohci_hcd and address 8
usb 5-1: device descriptor read/64, error -62
usb 5-1: configuration #1 chosen from 1 choice
gspca: probing 093a:2468
pac207: Pixart Sensor ID 0x27 Chips ID 0x00
pac207: Pixart PAC207BCA Image Processor and Control Chip detected (vid/pid 0x093A:0x2468)
gspca: probe ok
usb 5-1: New USB device found, idVendor=093a, idProduct=2468
usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 5-1: Product: CIF Single Chip     
usb 5-1: Manufacturer: Pixart Imaging Inc. 

If I pull the plug on it when it's in use (e.g. with Cheese), khubd starts spinning until I close the application that opened the camera.

Version-Release number of selected component (if applicable):
kernel-2.6.27.10-167.fc10.i686

How reproducible:
Always.

Steps to Reproduce:
1. Attach camera.
2. Start Cheese, wait for live view to start.
3. Pull camera plug.
4. Observe CPU usage.
5. Close Cheese.
Comment 1 James 2009-01-01 12:43:17 UTC 
This is fixed in rawhide, not seen in kernel-2.6.28-3.fc11.i686.
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