Debian Bug report logs - #407379
gspca: Disconnecting a camera while using it leads khubd to eat cpu

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Alex V Breger <osgxdvyg@gmail.com>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: gspca: Disconnecting a camera while using it leads khubd to eat cpu

Date: Thu, 18 Jan 2007 03:05:10 +0300

Package: gspca
Version: gspcav1-20070110
Severity: normal

I have a Gembird CAM44U (usb id: 0ac8:305b), here is the dmesg from driver:
/home/abc/Desktop/gspcav1-20070110/gspca_core.c: USB SPCA5XX camera found.(ZC3XX)
/home/abc/Desktop/gspcav1-20070110/gspca_core.c: [spca5xx_probe:3983] Camera type JPEG
/home/abc/Desktop/gspcav1-20070110/Vimicro/zc3xx.h: [zc3xx_config:515] Sensor ID:22
/home/abc/Desktop/gspcav1-20070110/Vimicro/zc3xx.h: [zc3xx_config:522] Find Sensor Tas5130 (VF0250)
/home/abc/Desktop/gspcav1-20070110/gspca_core.c: [spca5xx_getcapability:1189] maxw 640 maxh 480 minw 176 minh 144

When I disconnect the camera with some player opened, computer frezzes for several seconds,
then khubd begin to eat all available cpu.
With player closed disconnecting don't lead to this effect.
Player stops on pool system call, dmesg says
/home/abc/Desktop/gspcav1-20070110/gspca_core.c: [spca50x_isoc_irq:1084] Non-zero status (-84) in isoc completion handler.
/home/abc/Desktop/gspcav1-20070110/gspca_core.c: [spca50x_isoc_irq:1084] Non-zero status (-84) in isoc completion handler.
usb 2-1: USB disconnect, address 7

Strace of player after disconnect, this lines repeated many times.

gettimeofday({1169078510, 516792}, NULL) = 0
poll([{fd=3, events=POLLIN, revents=POLLIN}], 1, -1) = 1
ioctl(3, FIONREAD, [32])                = 0
read(3, "\26\0\320\1L\0\0\0\3\0\300\0)\0\300\0\0\0\345\3\0\5\33"..., 32) = 32
ioctl(3, FIONREAD, [0])                 = 0
ioctl(3, FIONREAD, [0])                 = 0

After killing player khubd become normal.


-- System Information:
Debian Release: 4.0
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-3-xen-686
Locale: LANG=ru_RU.KOI8-R, LC_CTYPE=ru_RU.KOI8-R (charmap=KOI8-R)

Message #10 received at 407379-done@bugs.debian.org (full text, mbox, reply):

From: Marco Rodrigues <gothicx@sapo.pt>

To: 407379-done@bugs.debian.org

Subject: gspca has been removed from Debian, closing #407379

Date: Tue, 04 Aug 2009 23:17:37 +0100

Version: 01.00.20-1+rm

The gspca package has been removed from Debian so we are closing
the bugs that were still opened against it.

For more information about this package's removal, read
http://bugs.debian.org/519463 . That bug might give the reasons why
this package was removed, and suggestions of possible replacements.

Don't hesitate to reply to this mail if you have any question.

Thank you for your contribution to Debian.

Kind regards,
--
Marco Rodrigues

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