[Bug 1446863] Re: [precise] lsusb -t hangs with no output

Bug Watch Updater 1446863 at bugs.launchpad.net
Sat Oct 28 08:43:53 UTC 2017


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On 2013-02-23T14:21:08+00:00 Michael wrote:

Created attachment 701636
strace of lsusb stopped with ^C after a delay.

Description of problem:
lsusb -t hangs and produces no output.  This also blocks sosreport.  

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


How reproducible:
every time.  

Steps to Reproduce:
1. lsusb -t 


Actual results:
nothing happens

Expected results:
tree output of USB devices

Additional info:
Bug #814087 seems a bit similar but produced output and is for an older Fedora.


strace was completed by me pressing ^C at the end.  

attached will be: 
strace 
backtrace at lockup point 
lsusb -v 


Additional info:

Reply at:
https://bugs.launchpad.net/ubuntu/+source/usbutils/+bug/1446863/comments/0

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On 2013-02-23T14:23:33+00:00 Michael wrote:

Created attachment 701637
backtrace of a locked up LSUSB

Reply at:
https://bugs.launchpad.net/ubuntu/+source/usbutils/+bug/1446863/comments/1

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On 2013-02-23T14:24:17+00:00 Michael wrote:

Created attachment 701638
lsusb -v output - N.B.  does not lock up

Reply at:
https://bugs.launchpad.net/ubuntu/+source/usbutils/+bug/1446863/comments/2

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On 2013-02-25T15:25:19+00:00 Lukáš wrote:

Created attachment 702395
possible patch

Reply at:
https://bugs.launchpad.net/ubuntu/+source/usbutils/+bug/1446863/comments/3

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On 2013-02-25T15:39:40+00:00 Lukáš wrote:

Can you please try this patch version?
http://people.fedoraproject.org/~lnykryn/usbutils/006-4/

Reply at:
https://bugs.launchpad.net/ubuntu/+source/usbutils/+bug/1446863/comments/4

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On 2013-02-25T16:36:54+00:00 Michael wrote:

Yes; that seems to fix it.  (running as normal user)

[hoop at agata ~]$ lsusb -t


(wait a very very long time)


[hoop at agata ~]$ ./usr/bin/lsusb -t
/:  Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 5000M
/:  Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 480M
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci_hcd/2p, 480M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/8p, 480M
        |__ Port 6: Dev 3, If 0, Class=Communications, Driver=, 480M
        |__ Port 6: Dev 3, If 1, Class=Communications, Driver=cdc_acm, 480M
        |__ Port 6: Dev 3, If 2, Class=CDC Data, Driver=cdc_acm, 480M
        |__ Port 6: Dev 3, If 3, Class=Communications, Driver=cdc_acm, 480M
        |__ Port 6: Dev 3, If 4, Class=CDC Data, Driver=cdc_acm, 480M
        |__ Port 6: Dev 3, If 5, Class=Communications, Driver=cdc_wdm, 480M
        |__ Port 6: Dev 3, If 6, Class=Communications, Driver=cdc_ncm, 480M
        |__ Port 6: Dev 3, If 7, Class=CDC Data, Driver=cdc_ncm, 480M
        |__ Port 6: Dev 3, If 8, Class=Communications, Driver=cdc_wdm, 480M
        |__ Port 6: Dev 3, If 9, Class=Communications, Driver=cdc_acm, 480M
        |__ Port 6: Dev 3, If 10, Class=CDC Data, Driver=cdc_acm, 480M
        |__ Port 8: Dev 4, If 0, Class=Application Specific Interface, Driver=, 12M
        |__ Port 8: Dev 4, If 1, Class=Chip/SmartCard, Driver=, 12M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci_hcd/2p, 480M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M
        |__ Port 4: Dev 3, If 0, Class=Wireless, Driver=btusb, 12M
        |__ Port 4: Dev 3, If 1, Class=Wireless, Driver=btusb, 12M
        |__ Port 4: Dev 3, If 2, Class=Vendor Specific Class, Driver=, 12M
        |__ Port 4: Dev 3, If 3, Class=Application Specific Interface, Driver=, 12M
        |__ Port 5: Dev 4, If 0, Class=Video, Driver=uvcvideo, 480M
        |__ Port 5: Dev 4, If 1, Class=Video, Driver=uvcvideo, 480M

Reply at:
https://bugs.launchpad.net/ubuntu/+source/usbutils/+bug/1446863/comments/5

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On 2013-02-25T19:40:25+00:00 Lukáš wrote:

Thanks for checking, I will prepare an update tomorrow.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/usbutils/+bug/1446863/comments/6

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On 2013-02-26T14:23:38+00:00 Fedora wrote:

usbutils-006-4.fc18 has been submitted as an update for Fedora 18.
https://admin.fedoraproject.org/updates/usbutils-006-4.fc18

Reply at:
https://bugs.launchpad.net/ubuntu/+source/usbutils/+bug/1446863/comments/7

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On 2013-02-27T02:25:29+00:00 Fedora wrote:

Package usbutils-006-4.fc18:
* should fix your issue,
* was pushed to the Fedora 18 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing usbutils-006-4.fc18'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-2013-3074/usbutils-006-4.fc18
then log in and leave karma (feedback).

Reply at:
https://bugs.launchpad.net/ubuntu/+source/usbutils/+bug/1446863/comments/8

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On 2013-03-20T21:29:44+00:00 Fedora wrote:

usbutils-006-4.fc18 has been pushed to the Fedora 18 stable repository.
If problems still persist, please make note of it in this bug report.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/usbutils/+bug/1446863/comments/9


** Changed in: usbutils
       Status: Unknown => Fix Released

** Changed in: usbutils
   Importance: Unknown => Medium

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https://bugs.launchpad.net/bugs/1446863

Title:
  [precise] lsusb -t hangs with no output

Status in usbutils:
  Fix Released
Status in usbutils package in Ubuntu:
  Fix Released
Status in usbutils source package in Precise:
  New

Bug description:
  Program lsusb with -t option hangs and go into infinite loop. This
  problem is fixed by upstream commit:
  https://github.com/gregkh/usbutils/commit/f16b3198b289f5009ac8c516da50a14cc7a17cf2

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