Bug 77612 - hotplug: spurious disconnect of usb after other updates
hotplug: spurious disconnect of usb after other updates
Status: CLOSED WONTFIX
Product: Red Hat Linux
Classification: Retired
Component: kernel (Show other bugs)
7.3
All Linux
medium Severity medium
: ---
: ---
Assigned To: Arjan van de Ven
Brian Brock
:
Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2002-11-10 17:25 EST by adrian.lawrence
Modified: 2007-04-18 12:48 EDT (History)
0 users

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Environment:
Last Closed: 2005-02-04 15:49:41 EST
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


Attachments (Terms of Use)
Extract from /var/log/messages showing suprious disconnect (4.62 KB, text/plain)
2002-11-10 17:32 EST, adrian.lawrence
no flags Details

  None (edit)
Description adrian.lawrence 2002-11-10 17:25:21 EST
From Bugzilla Helper:
User-Agent: Mozilla/5.0 Galeon/1.2.6 (X11; Linux i686; U;) Gecko/20020913

Description of problem:
After applying latest updates including glibc-2.2.5-42, glibc-debug-2.2.5-42,
and friends, krb5-*--1.2.4 and nscd-2.2.5-42, hotplug
disconnects a usb device (scanner) incorrectly.

Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
1.Switch on a usb scanner
2.Inspect /var/log/messages to see the disconnect. xsane, for example cannot
connect to the scanner. Hardly surprising :-)
3.
	

Actual Results:  N/A

Expected Results:  n/a

Additional info:

Nov 10 16:09:14 conquest3 /sbin/hotplug: invoke /etc/hotplug/usb.agent ()
Nov 10 16:09:30 conquest3 kernel: usb.c: deregistering driver usbscanner
Nov 10 16:09:54 conquest3 kernel: usb.c: USB disconnect on device 1
The spurious disconnect:

Nov 10 16:09:54 conquest3 /sbin/hotplug: arguments (usb) env (PWD=/etc/hotplug
DEVICE=/proc/bus/usb/001/001 ACTION=remove DEBUG=kernel OLDPWD=/
DEVFS=/proc/bus/usb TYPE=9/0/0 SHLVL=1 HOME=/ PATH=/bin:/sbin:/usr/sbin:/usr/bin
PRODUCT=0/0/0 _=/usr/bin/env)
Nov 10 16:09:54 conquest3 /sbin/hotplug: invoke /etc/hotplug/usb.agent ()
Nov 10 16:09:54 conquest3 kernel: usb.c: USB bus 1 deregistered
w83781d-isa-0290

Workaround:
~~~~~~~~~~~

Disable hotplug with
  echo /bin/true > /proc/sys/kernel/hotplug
and load modules manually with modprobe.
The scanner and xsane then work normally.

I doubt that this bug is in hotplug itself. Sorry, I don't have time to
investigate further. I will attach a fuller log.
Comment 1 adrian.lawrence 2002-11-10 17:32:12 EST
Created attachment 84464 [details]
Extract from /var/log/messages showing suprious disconnect
Comment 2 Bill Nottingham 2005-02-04 15:49:13 EST
Closing out bugs on older, no longer supported, releases. Apologies
for any lack of response. Please reopen if problems persist on more
current releases.

Note You need to log in before you can comment on or make changes to this bug.