Red Hat Bugzilla – Full Text Bug Listing
|Summary:||xvnc startup is racy|
|Product:||[Fedora] Fedora||Reporter:||Will Woods <wwoods>|
|Component:||anaconda||Assignee:||Anaconda Maintenance Team <anaconda-maint-list>|
|Status:||CLOSED WORKSFORME||QA Contact:||Fedora Extras Quality Assurance <extras-qa>|
|Version:||rawhide||CC:||anaconda-maint-list, pjones, rmaximo, vanmeeuwen+fedora|
|Fixed In Version:||Doc Type:||Bug Fix|
|Doc Text:||Story Points:||---|
|Last Closed:||2009-04-28 18:25:52 EDT||Type:||---|
|oVirt Team:||---||RHEL 7.3 requirements from Atomic Host:|
|Bug Depends On:|
Description Will Woods 2009-04-23 12:53:33 EDT
I've encountered a couple of problems with vnc startup: 1) More common: when starting with 'vnc vncpassword=password', messages like these appear. 12:13:37 The VNC Server is now running. vncconfig: unable to open display ":1" vncconfig: unable to open display ":1" vncconfig: unable to open display ":1" vncconfig: unable to open display ":1" 2) Less common: While starting VNC from the text dialog (after X fails and falls back to text mode), I choose to use a password. I type the password quickly and hit OK, and anaconda exits abnormally with the following traceback: 11:24:31 The VNC Server is now running. Traceback (most recent call last): File "/usr/bin/anaconda", line 870, in <module> runVNC() File "/usr/bin/anaconda", line 254, in runVNC vncS.startServer() I suspect this code chunk from startServer(): # Lets give the xvnc time to initialize time.sleep(1) # Make sure it hasn't blown up if xvncp.poll() != None: sys.exit(1) .. self.setVNCPassword() In the common case, I'm not positive that time.sleep(1) is enough to ensure that xvnc is actually ready for vncconfig to connect to it. As for the latter case, I don't know why xvncp.poll() would return non-None without there being any log messages etc. Maybe poll() isn't working as expected? It would be helpful if an error was raised or a message logged, rather then immediately exiting.
Comment 1 Will Woods 2009-04-27 15:07:13 EDT
These turn out to be two different problems. The second case was caused by a misbehaving handler for SIGCHLD which made anaconda exit when a subprocess (like vncpassword) finished. A patch has been submitted for review - so #2 should be fixed. The first problem still needs investigation.
Comment 2 Will Woods 2009-04-28 18:25:52 EDT
Well, I can't reproduce the first problem anymore. I've asked a couple other people to try, and 'vncpassword=XXX' seems to work fine in anaconda-188.8.131.52 for everyone who's tried it.