Bug#449039: xserver-xorg: X slows down and finally crash with too many remote clients
Thank you for your attention.
I'm keeping sid updated on an almost daily basis, but this is the first time the problem occurs. It's reproducible, in the sense that I can experience it as soon as heavy X11 networking activity is taking place with Mathematica as the remote client; five sessions are enough, if they happen to send what apparently is the critical event concurrently. On the other hand this was not my usage pattern until a few days ago or so, therefore I cannot be sure the bug wasn't already there.
The problem is not a freeze, but a complete Xserver crash: kde and all the open applications fail, and I'm dropped back to a textual console. Then kdm respawns, and I have to login again. Of course loosing all the unsaved documents and open sessions elsewhere in the process.
I don't have a backtrace available at the moment, and apparently not much is shown in the Xorg.log file (I might have to increase the verbosity there). But here follows the final part of my ~/.xsession-errors, saved immediately after the crash.
Thanks a lot again, and please let me know if anything more could help (I'll have to see how to do the gdb backtrace you suggested, I've never tried).
--
a.m.
>From .xsession-errors
kded: '/home/marmo/Thesis/Code2/PRODUCTION/34x34 Doping 86 U 2.6 to 4 V3 or V0/Output-2007-11-2' is not a working copy
kded: '/home/marmo/Thesis/Code2/PRODUCTION/34x34 Doping 86 U 2.6 to 4 V3 or V0' is not a working copy
kded: kdesvnd_dcop::isRepository Url zum repo check: file:///home/marmo/Thesis/Code2/PRODUCTION/34x34 Doping 86 U 2.6 to 4 V3 or V0/Output-2007-11-2
kded: kdesvnd_dcop::isRepository Protokoll: file
kded: Unable to open an ra_local session to URL
Unable to open repository 'file:///home/marmo/Thesis/Code2/PRODUCTION/34x34%20Doping%2086%20U%202.6%20to%204%20V3%20or%20V0/Output-2007-11-2'
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x2e422fb
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 19
Minor opcode: 0
Resource id: 0x2e422fb
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x2e422fb
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x2e422fb
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 19
Minor opcode: 0
Resource id: 0x2e4234d
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 19
Minor opcode: 0
Resource id: 0x36020aa
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 19
Minor opcode: 0
Resource id: 0x38035d3
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 19
Minor opcode: 0
Resource id: 0x38036a3
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 19
Minor opcode: 0
Resource id: 0x3803770
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 19
Minor opcode: 0
Resource id: 0x380383b
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 19
Minor opcode: 0
Resource id: 0x3a0b1d1
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 19
Minor opcode: 0
Resource id: 0x3c107ec
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 19
Minor opcode: 0
Resource id: 0x3e0c5d0
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 19
Minor opcode: 0
Resource id: 0x3e1069b
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 19
Minor opcode: 0
Resource id: 0x3a136ff
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 19
Minor opcode: 0
Resource id: 0x1466b5d
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 19
Minor opcode: 0
Resource id: 0x1470d46
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 19
Minor opcode: 0
Resource id: 0x2e42a03
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 19
Minor opcode: 0
Resource id: 0x2e42a2d
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 19
Minor opcode: 0
Resource id: 0x2e42a50
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 2
Minor opcode: 0
Resource id: 0x3e17b5d
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x3e17b5d
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x3e17b5d
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x3e17b5d
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x3e17b5d
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x3e17b5d
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x3e17b5d
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 15
Minor opcode: 0
Resource id: 0x3e17b5d
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x3e17b5d
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x3e17b5d
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x3e17b5d
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x3e17b5d
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x3e17b5d
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x3e17b5d
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x3e17b5d
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x3e17b5d
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x3e17b5d
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 2
Minor opcode: 0
Resource id: 0x3e17b5d
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 2
Minor opcode: 0
Resource id: 0x3e17b5d
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 2
Minor opcode: 0
Resource id: 0x3602163
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 2
Minor opcode: 0
Resource id: 0x3602163
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 2
Minor opcode: 0
Resource id: 0x3602163
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x3602163
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x3602163
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x3602163
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x3602163
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x3602163
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x3602163
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 15
Minor opcode: 0
Resource id: 0x3602163
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x3602163
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x3602187
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 19
Minor opcode: 0
Resource id: 0x3602187
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x2e44b0f
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x2e44b0f
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 19
Minor opcode: 0
Resource id: 0x2e44b0f
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x2e44b0f
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x36021e7
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x36021e7
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x36021e7
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x36021e7
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x36021e7
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x36021e7
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x36021e7
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x36021e7
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 19
Minor opcode: 0
Resource id: 0x36021e7
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 19
Minor opcode: 0
Resource id: 0x4400001
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 19
Minor opcode: 0
Resource id: 0x4400001
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x440009a
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20
Minor opcode: 0
Resource id: 0x440009a
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 19
Minor opcode: 0
Resource id: 0x440009a
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 19
Minor opcode: 0
Resource id: 0x3803a97
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 19
Minor opcode: 0
Resource id: 0x3803c50
knetload: Fatal IO error: client killed
kdeinit: Fatal IO error: client killed
kdeinit: sending SIGHUP to children.
kicker: sighandler called
klauncher: Exiting on signal 1
*** kdesktop got signal 1 (Exiting)
kdeinit: sending SIGTERM to children.
kdeinit: Exit.
kicker: sighandler called
kicker: Fatal IO error: client killed
klauncher: Fatal IO error: client killed
DCOP Cleaning up dead connections.
kwin: Fatal IO error: client killed
kdeinit: Fatal IO error: client killed
kdeinit: sending SIGHUP to children.
kicker: sighandler called
kdeinit: Fatal IO error: client killed
kdeinit: sending SIGHUP to children.
kdeinit: sending SIGTERM to children.
kdeinit: Exit.
---------- Initial Header -----------
>From : "Brice Goglin" Brice.Goglin@ens-lyon.org
To : "Alberto Marmodoro" marmodoro@libero.it, 449039@bugs.debian.org
Cc :
Date : Fri, 02 Nov 2007 23:39:20 +0100
Subject : Re: Bug#449039: xserver-xorg: X slows down and finally crash with too many remote clients
> Alberto Marmodoro wrote:
> > Package: xserver-xorg
> > Version: 1:7.3+3
> > Severity: normal
> >
> > I'm experiencing sudden crashes of X when I have too many ( let's say
> > ten or so) different instances of an X client (Wolfram's Mathematica
> > 6.0 for linux) running on different computers and redirected on my machine
> > through ssh tunneling.
> > Pointer and keyboard response, even on locally generated windows, become
> > sluggish immediately before the failure occurs. This does not seem to
> > have orgin in network unavailability issues.
> >
> > If advised to do so, I'll proceed to try to reproduce and attach my
> > xsession-errors log.
>
> Did you experience this in the past? Any idea whether you upgraded
> xserver-xorg-core or your driver when the problem started to occur?
> For the record, nothing entered testing recently, since xserver 1.4
> entered unstable about one month and a half ago.
>
> Do you experience an actual crash (with a backtrace at the end of
> Xorg.0.log)? Or just a freeze? If a crash, it would be very helpful
> to catch a debugging backtrace with gdb after installing
> xserver-xorg-core-dbg.
>
> Brice
>
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