Does this continue after it's rebooted? A corrupted memory stack or flaky network connection are high likely culprits. Both maybe overheating chipset symptoms. <div class="gmail_quote">On May 30, 2011 10:53 AM, "Jeff Siddall" <<a href="mailto:news@siddall.name">news@siddall.name</a>> wrote: > I have one client system which otherwise seems to be behaving normally > but is sending a lot of data -- like a steady 30 Mbps -- to the server. > It appears to be sending as fast as it's CPU will let it as top shows X > taking 99% of the CPU. > > The large amount of data seems to be caused by "X11, Request, opcode: 20 > (GetProperty)" packets from the server to which the client replies with > either small (empty) replies or huge ~14 kB replies (approx. 9 full > Ethernet packets). > > These GetProperty requests go out from the server about every 1-2 > milliseconds which causes big replies from the client about every 4 ms > -- thus a ton of bandwidth. > > The big replies seem to have a bunch of info about application windows > but most of these are not currently running on the client. Here's a > brief excerpt of one of the large reply packets: > > ml*borderWidth:0 > ml*focusPolicy:pointer > ml*foreground:#1b1918 > ml*helpwin*textSW.text.background:#ffffff > ml*helpwin*textSW.text.foreground:#1b1918 > ml*highlightColor:#d5d1cf > ml*log*textSW.text.background:#ffffff > ml*log*textSW.text.foreground:#1b1918 > ml*marginHeight:2 > ml*marginWidth:3 > ml*selectColor:#d5d1cf > ml*textSW.text.background:#ffffff > ml*textSW.text.foreground:#1b1918 > ml.form.height:550 > ml.form.width:650 > nedit*background:#d5d1cf > nedit*foreground:#1b1918 > xcalc*background:#d5d1cf > xcalc*bevel.screen.LCD.background:#ffffff > xcalc*bevel.screen.LCD.foreground:#1b1918 > xcalc*foreground:#1b1918 > xdvi.background:white > xosview*background:#d5d1cf > xosview*foreground:#1b1918 > xosview*meterLabelColor:#1b1918 > xosview*usedLabelColor:#1b1918 > xpdf.background:#d5d1cf > xpdf.foreground:#1b1918 > xpdf.urlCommand:kfmclient exec %s > xterm*background:#ffffff > xterm*foreground:#1b1918 > xterm.SimpleMenu*background:#d5d1cf > xterm.SimpleMenu*foreground:#1b1918 > > Since it is the server requesting all this info hundreds of times per > second I am guessing something is wrong on the server side, but how do I > figure out what? > > Here is what is installed: > > Server: > xorg-x11-server-Xorg-1.8.2-4.fc13.i686 > ltsp-server-5.1.95-1.fc13.i686 > > Client: > xorg-x11-server-Xorg-1.8.2-4.fc13.i686 > ltsp-client-5.1.95-1.fc13.i686 > > Any help would be appreciated. > > Jeff > > _______________________________________________ > K12OSN mailing list > <a href="mailto:K12OSN@redhat.com">K12OSN@redhat.com</a> > <a href="https://www.redhat.com/mailman/listinfo/k12osn">https://www.redhat.com/mailman/listinfo/k12osn</a> > For more info see <<a href="http://www.k12os.org">http://www.k12os.org</a>> </div>