<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> </head> <body> <div dir="ltr"> <div dir="ltr" style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); text-align: left;"> > Could you test with the following patch to see if the stability improves</div> <div dir="ltr" style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); text-align: left;"> <br> </div> <div dir="ltr" style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); text-align: left;"> I have asked the devs at balena.io to integrate the patch into their os image and re-tested without success.</div> <div dir="ltr" style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); text-align: left;"> <br> </div> <div dir="ltr" style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); text-align: left;"> The image they sent still uses mm version 1.10.6 so I asked for another confirmation that they really backported the patch. I also forwarded your suggestion to upgrade. I will let you know about the outcome. Meanwhile I will capture another debug log.</div> <div dir="ltr" style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); text-align: left;"> <br> </div> <div dir="ltr" style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); text-align: left;"> Thanks a lot</div> <div dir="ltr" style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); text-align: left;"> Bruno</div> <div dir="ltr" style="text-align: left;"><br> </div> <div id="ms-outlook-mobile-signature">Holen Sie sich <a href="https://aka.ms/o0ukef"> Outlook für iOS</a></div> </div> <hr style="display:inline-block;width:98%" tabindex="-1"> <div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>Von:</b> Aleksander Morgado <aleksander@aleksander.es><br> <b>Gesendet:</b> Wednesday, December 11, 2019 4:05:14 PM<br> <b>An:</b> Bruno Vetter <bruno.vetter@outlook.com><br> <b>Cc:</b> modemmanager-devel@lists.freedesktop.org <modemmanager-devel@lists.freedesktop.org><br> <b>Betreff:</b> Re: Huawei ME909s-120 modem goes offline and disappears</font> <div> </div> </div> <div class="BodyFragment"><font size="2"><span style="font-size:11pt;"> <div class="PlainText">> At this point the disconnection logic has finished, but the CGACT?<br> > that got in the middle never gets a reply. After this, all commands we<br> > attempt to send to ttyUSB1 end up timing out, and after 10 consecutive<br> > timeouts, MM removes the modem from its logic because it cannot use<br> > the primary control port.<br> ><br> > Now, in this specific case, given that the connection status command<br> > is triggered *during* the disconnection process, I believe this could<br> > be caused by MM.<br> > I believe that we could either remove those connection checks also if<br> > bearer state goes to "disconnecting", or otherwise keep them removed<br> > only when "disconnected" but make sure they are a no-op while<br> > disconnecting. I think the latter would be a bit safer, as we wouldn't<br> > need to care for when the disconnection procedure fails.<br> ><br> > Let me prepare a patch to see if we can avoid this.<br> ><br> <br> Could you test with the following patch to see if the stability improves?<br> <a href="https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.freedesktop.org%2Fmobile-broadband%2FModemManager%2Fmerge_requests%2F229&data=02%7C01%7C%7C127fb31fa9984e9c16ec08d77e4b8db3%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637116735271253917&sdata=EplrI1%2BktelTy2WRVaMmFfLAIXcGGiuCb1XvoPLP9sQ%3D&reserved=0">https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.freedesktop.org%2Fmobile-broadband%2FModemManager%2Fmerge_requests%2F229&data=02%7C01%7C%7C127fb31fa9984e9c16ec08d77e4b8db3%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637116735271253917&sdata=EplrI1%2BktelTy2WRVaMmFfLAIXcGGiuCb1XvoPLP9sQ%3D&reserved=0</a><br> <br> -- <br> Aleksander<br> <a href="https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Faleksander.es&data=02%7C01%7C%7C127fb31fa9984e9c16ec08d77e4b8db3%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637116735271253917&sdata=jed6PR5I8t5qdRIG88LOz6ox9rBZYhsK8yEafrBwmRY%3D&reserved=0">https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Faleksander.es&data=02%7C01%7C%7C127fb31fa9984e9c16ec08d77e4b8db3%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637116735271253917&sdata=jed6PR5I8t5qdRIG88LOz6ox9rBZYhsK8yEafrBwmRY%3D&reserved=0</a><br> </div> </span></font></div> </body> </html>