<html> <head> <meta content="text/html; charset=utf-8" http-equiv="Content-Type"> </head> <body bgcolor="#FFFFFF" text="#000000"> <div class="moz-cite-prefix">Am 03.02.2015 um 07:51 schrieb Alex Brooks: </div> <blockquote cite="mid:54D0700D.4090805@marathon-targets.com" type="cite"> <meta content="text/html; charset=utf-8" http-equiv="Content-Type"> <div class="moz-cite-prefix">Hi Ralf, I tried with the modifications you suggest (tracking number of iterations and time). There's a magic number: in all cases it starts failing after 300274 iterations (100% repeatable): </div> </blockquote> That is what I recognized too. I filed a bug for it <a class="moz-txt-link-freetext" href="https://bugs.freedesktop.org/show_bug.cgi?id=88896">https://bugs.freedesktop.org/show_bug.cgi?id=88896</a>. With the interface test app <a class="moz-txt-link-freetext" href="https://bugs.freedesktop.org/attachment.cgi?id=113094">https://bugs.freedesktop.org/attachment.cgi?id=113094</a> I tried to check several interfaces to get an idea where the problem belongs too and got the following results: path results 1. /org/freedesktop/DBus -> no problem 2. /org/freedesktop/login1 -> no problem 3. /fi/w1/wpa_supplicant1 -> no problem 4. /fi/w1/wpa_supplicant1/Interfaces/7 [1] -> with problems ... [1] number may be different on your system Probably a problem inside wpa_supplicant. . <blockquote cite="mid:54D0700D.4090805@marathon-targets.com" type="cite"> <div class="moz-cite-prefix"> ... wait ~55min ... </div> </blockquote> You can remove the usleep() call to short the time until the problem occurs (in the mentioned bug problems occurs after 8 minutes) Ralf <blockquote cite="mid:54D0700D.4090805@marathon-targets.com" type="cite"> <div class="moz-cite-prefix"> Alex On 01/02/15 03:12, Ralf Habacker wrote: </div> <blockquote cite="mid:54CCFEDA.5000703@habacker.de" type="cite"> <meta content="text/html; charset=utf-8" http-equiv="Content-Type"> <div class="moz-cite-prefix">Am 31.01.2015 um 16:10 schrieb Ralf Habacker: </div> <blockquote cite="mid:54CCF07F.5060902@habacker.de" type="cite"> <meta content="text/html; charset=utf-8" http-equiv="Content-Type"> <div class="moz-cite-prefix">Am 31.01.2015 um 14:49 schrieb Ralf Habacker: </div> <blockquote cite="mid:54CCDD4E.9060505@habacker.de" type="cite"> <meta content="text/html; charset=utf-8" http-equiv="Content-Type"> <blockquote cite="mid:CAE8XxP-w5Fjbfd_ENdNh2sY=AOkgbnNfSuJF1N0ACVq+8mf2YA@mail.gmail.com" type="cite"> <div class="gmail_quote">5 19:27, "Ralf Habacker" <<a moz-do-not-send="true" href="mailto:ralf@habacker.de">ralf@habacker.de</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> Am 31.01.2015 um 05:04 schrieb Alex Brooks: > Hi, > > I've been fighting for a long time with what now looks like a libdbus > bug. > I have a cut-down test program which calls a dbus method of > wpa_supplicant at 100Hz, it does this happily for several hours then > at some point the behaviour changes: any future calls sit at 100% CPU > for 25sec then time out. </blockquote> </div> </blockquote> </blockquote> After running about 54 minutes I got: counts time (ms) 300272 3245606 signalInfo rssi=-63 300273 3245616 signalInfo rssi=-63 Error: wpa_supplicant DBus error in signalPoll: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken. </blockquote> second run gave same results: ... 300272 3548324 1 signalInfo rssi=-57 300273 3548413 79 signalInfo rssi=-59 Error: wpa_supplicant DBus error in signalPoll: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken. Sounds as a kind of limits reached. The counts are collected as shown below: while ( true ) { try { int a = timer.elapsed(); int rssi = signalPoll( *netDevInterfaceInterface_ ); int b = timer.elapsed(); cout << i++ << " " < } <blockquote cite="mid:54CCF07F.5060902@habacker.de" type="cite"> Ralf <fieldset class="mimeAttachmentHeader"></fieldset> <pre wrap="">_______________________________________________ dbus mailing list <a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="mailto:dbus@lists.freedesktop.org">dbus@lists.freedesktop.org</a> <a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://lists.freedesktop.org/mailman/listinfo/dbus">http://lists.freedesktop.org/mailman/listinfo/dbus</a> </pre> </blockquote> </blockquote> <pre class="moz-signature" cols="72">-- ------------------------------ Dr Alex Brooks Marathon Targets Pty Ltd Ph: +61 2 8090 7202 Web: <a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="http://www.marathon-targets.com">www.marathon-targets.com</a> ------------------------------ </pre> <fieldset class="mimeAttachmentHeader"></fieldset> <pre wrap="">_______________________________________________ dbus mailing list <a class="moz-txt-link-abbreviated" href="mailto:dbus@lists.freedesktop.org">dbus@lists.freedesktop.org</a> <a class="moz-txt-link-freetext" href="http://lists.freedesktop.org/mailman/listinfo/dbus">http://lists.freedesktop.org/mailman/listinfo/dbus</a> </pre> </blockquote> </body> </html>