Bug 607410 - Reproducible stuck grab on server
Reproducible stuck grab on server
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: xorg-x11-server (Show other bugs)
All Linux
low Severity medium
: rc
: ---
Assigned To: Peter Hutterer
Depends On:
  Show dependency treegraph
Reported: 2010-06-23 23:35 EDT by Peter Hutterer
Modified: 2010-11-10 16:59 EST (History)
1 user (show)

See Also:
Fixed In Version: xorg-x11-server-1.7.7-16.el6
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2010-11-10 16:59:07 EST
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
$HOME/.mwmrc (2.36 KB, text/plain)
2010-06-23 23:35 EDT, Peter Hutterer
no flags Details

  None (edit)
Description Peter Hutterer 2010-06-23 23:35:45 EDT
Created attachment 426446 [details]

Description of problem:
Passive button grabs can get stuck, resulting in an unresponsive desktop. One reproducer is described below, there are likely other applications that trigger the same behaviour.

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

How reproducible:
Install the mwm window manager and install the $HOME/.mwmrc attached. Start up a plain X server, mwm and two xterms. Then hit Alt+mouse button1 over one of the terminals. The mouse is now unresponsive.

Steps to Reproduce:
1. start a plain X server
2. start mpwm
3. start two xterms
4. press Alt+Button1
5. desktop is unresponsive
Additional info:
Seems to be caused by invalid ButtonPress event delivery when a passive grab without the ButtonPress mask is activated.
Comment 1 RHEL Product and Program Management 2010-06-23 23:52:52 EDT
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux major release.  Product Management has requested further
review of this request by Red Hat Engineering, for potential inclusion in a Red
Hat Enterprise Linux Major release.  This request is not yet committed for
Comment 2 Peter Hutterer 2010-06-28 20:30:55 EDT

xorg-x11-server-1.7.7-16.el6 is available in brew.
Comment 4 Radek Lat 2010-11-08 12:42:19 EST
Tested and Verified using reproducer from comment 0 on xorg-x11-server-common-1.7.7-26.el6.
Moving to VERIFIED.
Comment 5 releng-rhel@redhat.com 2010-11-10 16:59:07 EST
Red Hat Enterprise Linux 6.0 is now available and should resolve
the problem described in this bug report. This report is therefore being closed
with a resolution of CURRENTRELEASE. You may reopen this bug report if the
solution does not work for you.

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