Bug 695438

Summary: spice client hangs because it waits for IO from xserver
Product: Red Hat Enterprise Linux 6 Reporter: David Jaša <djasa>
Component: libxcbAssignee: Søren Sandmann Pedersen <sandmann>
Status: CLOSED DUPLICATE QA Contact: desktop-bugs <desktop-bugs>
Severity: medium Docs Contact:
Priority: medium    
Version: 6.2CC: hdegoede, kem, sandmann, spice-qe-bugs
Target Milestone: rcKeywords: Triaged
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-04-12 07:19:49 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description Flags
hang backtrace none

Description David Jaša 2011-04-11 18:21:56 UTC
Created attachment 491305 [details]
hang backtrace

Description of problem:


Version-Release number of selected component (if applicable):
spice-client-0.8.0-2.el6.x86_64
spice-xpi-2.4-4.el6.x86_64
xorg-x11-server-Xorg-1.7.7-28.el6.x86_64
libxcb-1.5-1.el6.x86_64

How reproducible:
didn't manage to reproduce with steps that led to hang

Steps to Reproduce:
1. using User Portal, open spice connection to guest that doesn' have guest tools installed
2. hit shift-F11 to enter fullscreen and shift-F11 again to revert back to windowed mode
3.
  
Actual results:
spicec hangs and resolution is left to guest's one

Expected results:
spicec continues normal operation and resolution reverts to client's original one

Additional info:

Comment 2 David Jaša 2011-04-11 18:24:33 UTC
CCing Hans because this might also be a spice-client issue

Comment 3 RHEL Program Management 2011-04-11 18:37:50 UTC
This request was evaluated by Red Hat Product Management for
inclusion in the current release of Red Hat Enterprise Linux.
Because the affected component is not scheduled to be updated
in the current release, Red Hat is unfortunately unable to
address this request at this time. Red Hat invites you to
ask your support representative to propose this request, if
appropriate and relevant, in the next release of Red Hat
Enterprise Linux. If you would like it considered as an
exception in the current release, please ask your support
representative.

Comment 4 Hans de Goede 2011-04-11 19:40:38 UTC
Hmm,

This sound a lot like a dup of bug 692833, was xorg perhaps using a lot of CPU at the time this happened? If spicec goes into an endless self triggered event loop, the traceback will look likely like what you see, because most of the time (99%) it will be in XReply.

Regards,

Hans

Comment 5 David Jaša 2011-04-12 05:59:07 UTC
(In reply to comment #4)
> Hmm,
> 
> This sound a lot like a dup of bug 692833, was xorg perhaps using a lot of CPU
> at the time this happened? 

I'm not sure about this, as I was changing my resolution back and "quad" core easily hides a single cpu-intensive thread.

Comment 6 Hans de Goede 2011-04-12 07:19:49 UTC
(In reply to comment #5)
> (In reply to comment #4)
> > Hmm,
> > 
> > This sound a lot like a dup of bug 692833, was xorg perhaps using a lot of CPU
> > at the time this happened? 
> 
> I'm not sure about this, as I was changing my resolution back and "quad" core
> easily hides a single cpu-intensive thread.

I'm pretty sure this is a dup, given that switching to / from fullscreen is what triggered it. Marking it as a dup.

*** This bug has been marked as a duplicate of bug 692833 ***