<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <style type="text/css" style="display:none;"></style> </head> <body dir="ltr"> <div id="divtagdefaultwrapper" dir="ltr" style="font-size: 12pt; color: rgb(0, 0, 0); font-family: Calibri, Arial, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols;"> <p><span style="font-size:10pt">> The patches should go on top of git master; not really sure what's</span><br> </p> <div style="color:rgb(0,0,0)"><font size="2"><span style="font-size:10pt"> <div class="PlainText">> happening to you. Can you run it under gdb and get a backtrace?<br> <br> Here is what I was seeing from gdb:</div> <div class="PlainText"> <div>Reading symbols from /usr/sbin/ModemManager...done.</div> <div>(gdb) run</div> <div>Starting program: /usr/sbin/ModemManager --debug</div> <div>warning: Unable to find libthread_db matching inferior's thread library, thread debugging will not be available.</div> <div>[New LWP 580]</div> <div>ModemManager[577]: <info> [1495597905.990684] [main.c:157] main(): ModemManager (version 1.7.0) starting in system bus...</div> <div>[New LWP 581]</div> <div>[New LWP 582]</div> <div>ModemManager[577]: <debug> [1495597905.997456] [mm-sleep-monitor.c:245] mm_sleep_monitor_get(): create MMSleepMonitor singleton (0x1514cc0)</div> <div>[New LWP 583]</div> <div>ModemManager[577]: <debug> [1495597906.022886] [main.c:83] bus_acquired_cb(): Bus acquired, creating manager...</div> <div>ModemManager[577]: <debug> [1495597906.027225] [mm-plugin-manager.c:1559] load_plugins(): [plugin manager] looking for plugins in '/usr/lib/ModemManager'</div> <div>ModemManager[577]: <debug> [1495597906.058538] [mm-plugin-manager.c:1584] load_plugins(): [plugin manager] loaded plugin 'ZTE'</div> <div>ModemManager[577]: <debug> [1495597906.085244] [mm-plugin-manager.c:1584] load_plugins(): [plugin manager] loaded plugin 'Novatel'</div> <div>ModemManager[577]: <debug> [1495597906.109977] [mm-plugin-manager.c:1584] load_plugins(): [plugin manager] loaded plugin 'Iridium'</div> <div>ModemManager[577]: <debug> [1495597906.144019] [mm-plugin-manager.c:1584] load_plugins(): [plugin manager] loaded plugin 'Dell'</div> <div>ModemManager[577]: <debug> [1495597906.169483] [mm-plugin-manager.c:1584] load_plugins(): [plugin manager] loaded plugin 'Longcheer'</div> <div>ModemManager[577]: <debug> [1495597906.195925] [mm-plugin-manager.c:1584] load_plugins(): [plugin manager] loaded plugin 'MTK'</div> <div>ModemManager[577]: <debug> [1495597906.220452] [mm-plugin-manager.c:1584] load_plugins(): [plugin manager] loaded plugin 'Haier'</div> <div>ModemManager[577]: <debug> [1495597906.247849] [mm-plugin-manager.c:1584] load_plugins(): [plugin manager] loaded plugin 'X22X'</div> <div>ModemManager[577]: <debug> [1495597906.273565] [mm-plugin-manager.c:1584] load_plugins(): [plugin manager] loaded plugin 'Sierra'</div> <div>ModemManager[577]: <debug> [1495597906.310957] [mm-plugin-manager.c:1584] load_plugins(): [plugin manager] loaded plugin 'Huawei'</div> <div>[LWP 582 exited]</div> <div>ModemManager[577]: <debug> [1495597906.525223] [mm-plugin-manager.c:1584] load_plugins(): [plugin manager] loaded plugin 'Cinterion'</div> <div>ModemManager[577]: <debug> [1495597906.554053] [mm-plugin-manager.c:1584] load_plugins(): [plugin manager] loaded plugin 'Thuraya'</div> <div>ModemManager[577]: <debug> [1495597906.583189] [mm-plugin-manager.c:1584] load_plugins(): [plugin manager] loaded plugin 'Wavecom'</div> <div><br> </div> <div>Thread 1 "ModemManager" received signal SIGSEGV, Segmentation fault.</div> <div>0x76778810 in strchr () from /lib/libc.so.6</div> <div>(gdb)</div> <div><br> </div> <div>(gdb) bt</div> <div>Python Exception <type 'exceptions.ImportError'> No module named gdb.frames:</div> <div>#0 0x76778810 in strchr () from /lib/libc.so.6</div> <div>#1 0x76acd548 in g_param_spec_pool_lookup () from /lib/libgobject-2.0.so.0</div> <div>#2 0x76ac85b4 in g_object_new_valist () from /lib/libgobject-2.0.so.0</div> <div>#3 0x76ac89e0 in g_object_new () from /lib/libgobject-2.0.so.0</div> <div>#4 0x7427d9dc in mm_plugin_create ()</div> <div> from /usr/lib/ModemManager/libmm-plugin-ublox.so</div> <div>#5 0x00042ef8 in initable_init ()</div> <div>#6 0x76b55ba0 in g_initable_new_valist () from /lib/libgio-2.0.so.0</div> <div>#7 0x76b55bec in g_initable_new () from /lib/libgio-2.0.so.0</div> <div>#8 0x00043e70 in mm_plugin_manager_new ()</div> <div>#9 0x0003f548 in initable_init ()</div> <div>#10 0x76b55ba0 in g_initable_new_valist () from /lib/libgio-2.0.so.0</div> <div>#11 0x76b55bec in g_initable_new () from /lib/libgio-2.0.so.0</div> <div>#12 0x000402c8 in mm_base_manager_new ()</div> <div>#13 0x0003d54c in bus_acquired_cb ()</div> <div>#14 0x76bc05a8 in ?? () from /lib/libgio-2.0.so.0</div> <div>Backtrace stopped: previous frame identical to this frame (corrupt stack?)</div> <div>(gdb)</div> <br> <br> > P.S.: did you by any chance configure previously without a --prefix<br> > given?<br> </div> <div class="PlainText"><br> </div> <div class="PlainText">I'm building this in Buildroot for an embedded system, so here is my configure command:</div> <div class="PlainText"><span>./configure --target=arm-buildroot-linux-gnueabihf --host=arm-buildroot-linux-gnueabihf --build=x86_64-pc-linux-gnu --prefix=/usr --exec-prefix=/usr --sysconfdir=/etc --localstatedir=/var --program-prefix="" --disable-gtk-doc --disable-gtk-doc-html --disable-doc --disable-docs --disable-documentation --with-xmlto=no --with-fop=no --disable-dependency-tracking --enable-ipv6 --disable-static --enable-shared --with-qmi --with-mbim</span><br> </div> <div class="PlainText"><span><br> </span></div> <div class="PlainText"><span>To add to the weirdness, it seems when I enabled debug symbols in the buildroot build, the segmentation faults went away. Now, when I run "ModemManager --debug" it works, but instead of a segmentation fault it just gives me a CRITICAL warning and moves on (<span>object class 'MMPluginUblox' has no property named '\x90'\xf0')</span>. Not sure if it's just a coincidence or if that is the reason, but it's what I'm seeing.</span></div> <div class="PlainText"><span><br> </span></div> <div class="PlainText">Whatever the reason, the good news is that the modem now shows up in ModemManager!</div> <div class="PlainText"> <div># mmcli -L</div> <div><br> </div> <div>Found 1 modems:</div> <div> /org/freedesktop/ModemManager1/Modem/0 [u-blox] SARA-U260</div> <br> </div> <div class="PlainText">There seems to be some errors (log files are attached), but it could be related to the fact that I do not have an antenna connected. I'll connect one in the morning when I'm back in the office and see what happens. Regardless, this patch does work for the SARA-U260, so thank you!</div> <div class="PlainText"><br> </div> <div class="PlainText">-brent</div> </span></font></div> </div> </body> </html>