Bug 428774 - HAL doesn't notice USB devices going away
Summary: HAL doesn't notice USB devices going away
Alias: None
Product: Fedora
Classification: Fedora
Component: hal
Version: 8
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: David Zeuthen
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2008-01-15 05:00 UTC by Daniel Berrangé
Modified: 2013-03-06 03:54 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2009-01-09 05:47:37 UTC
Type: ---

Attachments (Terms of Use)
lshal output (250.66 KB, text/plain)
2008-01-15 05:00 UTC, Daniel Berrangé
no flags Details
lshal output after another hibernate cycle (252.42 KB, text/plain)
2008-01-15 15:13 UTC, Daniel Berrangé
no flags Details

Description Daniel Berrangé 2008-01-15 05:00:30 UTC
Description of problem:
I have 6 USB devices

# find /dev/bus/usb/ -type c | wc -l

HAL on the other hand thinks I have 94 usb devices

# lshal | grep /dev/bus/usb | awk '{print $3}' | sort | uniq  | wc -l

It has records of devices I've already unplugged

  info.product = 'Plantronics Headset'  (string)
  linux.device_file = '/dev/bus/usb/002/003'  (string)
  info.product = 'Nomad MuVo NX'  (string)
  linux.device_file = '/dev/bus/usb/002/002'  (string)

And many many many copies of devices built into the laptop

  info.product = 'Fingerprint Reader'  (string)
  linux.device_file = '/dev/bus/usb/005/010'  (string)
  info.product = 'Fingerprint Reader'  (string)
  linux.device_file = '/dev/bus/usb/005/009'  (string)
  info.product = 'Fingerprint Reader'  (string)
  linux.device_file = '/dev/bus/usb/005/008'  (string)

As a potentially relevant side-note, this laptop has been hibernated & suspended
many times without reboot. Perhaps HAL doesn't clear out missing devices
properly when it resuming ?

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

How reproducible:

Steps to Reproduce:
1. Run 'lshal' and look for any USB device paths listed which no longer exist
Actual results:

Expected results:

Additional info:

Comment 1 Daniel Berrangé 2008-01-15 05:00:30 UTC
Created attachment 291678 [details]
lshal output

Comment 2 Daniel Berrangé 2008-01-15 15:13:19 UTC
Created attachment 291717 [details]
lshal output after another hibernate cycle

This is the output after I've done another hibernate cycle - one more cloned
USB device is added to the list

Comment 3 David Zeuthen 2008-01-15 15:56:25 UTC
Does this only happen around suspend/hibernate cycles?

Comment 4 Daniel Berrangé 2008-01-15 16:03:51 UTC
After more testing, I can confirm it happens even on merely plugging &
unplugging a USB device while running. I plugged in a USB  wifi NIC, and it
added 5 devices - 3 USB related devices, and 2 net related devices. When I
unplugged it again, 1 of the USB related devices still remains.

Comment 5 David Zeuthen 2008-01-15 16:13:17 UTC
I'll look into it...

Comment 6 Bug Zapper 2008-11-26 09:26:28 UTC
This message is a reminder that Fedora 8 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 8.  It is Fedora's policy to close all
bug reports from releases that are no longer maintained.  At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '8'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version prior to Fedora 8's end of life.

Bug Reporter: Thank you for reporting this issue and we are sorry that 
we may not be able to fix it before Fedora 8 is end of life.  If you 
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The process we are following is described here: 

Comment 7 Bug Zapper 2009-01-09 05:47:37 UTC
Fedora 8 changed to end-of-life (EOL) status on 2009-01-07. Fedora 8 is 
no longer maintained, which means that it will not receive any further 
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of 
Fedora please feel free to reopen this bug against that version.

Thank you for reporting this bug and we are sorry it could not be fixed.

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