Bug 914929

Summary: lsusb -t hangs with no output; blocker for sosreport
Product: [Fedora] Fedora Reporter: Michael De La Rue <shalli.vcgfdt>
Component: usbutilsAssignee: Lukáš Nykrýn <lnykryn>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 18CC: lnykryn
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2013-03-20 21:29:42 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
strace of lsusb stopped with ^C after a delay.
none
backtrace of a locked up LSUSB
none
lsusb -v output - N.B. does not lock up
none
possible patch none

Description Michael De La Rue 2013-02-23 14:21:08 UTC
Created attachment 701636 [details]
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:

Comment 1 Michael De La Rue 2013-02-23 14:23:33 UTC
Created attachment 701637 [details]
backtrace of a locked up LSUSB

Comment 2 Michael De La Rue 2013-02-23 14:24:17 UTC
Created attachment 701638 [details]
lsusb -v output - N.B.  does not lock up

Comment 3 Lukáš Nykrýn 2013-02-25 15:25:19 UTC
Created attachment 702395 [details]
possible patch

Comment 4 Lukáš Nykrýn 2013-02-25 15:39:40 UTC
Can you please try this patch version?
http://people.fedoraproject.org/~lnykryn/usbutils/006-4/

Comment 5 Michael De La Rue 2013-02-25 16:36:54 UTC
Yes; that seems to fix it.  (running as normal user) 

[hoop@agata ~]$ lsusb -t


(wait a very very long time)



[hoop@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

Comment 6 Lukáš Nykrýn 2013-02-25 19:40:25 UTC
Thanks for checking, I will prepare an update tomorrow.

Comment 7 Fedora Update System 2013-02-26 14:23:38 UTC
usbutils-006-4.fc18 has been submitted as an update for Fedora 18.
https://admin.fedoraproject.org/updates/usbutils-006-4.fc18

Comment 8 Fedora Update System 2013-02-27 02:25:29 UTC
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).

Comment 9 Fedora Update System 2013-03-20 21:29:44 UTC
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.