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Created attachment 512769 [details] NetworkManager and ModemManager log Description of problem: I'm unable to connect to the 3G network after weeks of being able to use it reliably. The 3G card is detected, but it never triggers PPP for a network connection. SElinux is disabled by using the selinux=0 kernel parameter. Version-Release number of selected component (if applicable): NetworkManager-gnome-0.8.9997-5.git20110702.fc15.x86_64 NetworkManager-pptp-0.8.999-1.fc15.x86_64 NetworkManager-glib-0.8.9997-5.git20110702.fc15.x86_64 NetworkManager-vpnc-0.8.999-2.fc15.x86_64 NetworkManager-0.8.9997-5.git20110702.fc15.x86_64 ModemManager-0.4.997-1.fc15.x86_64 How reproducible: For the last 8 hours, every time. Steps to Reproduce: 1. Connect 3G device 2. Select the 3G connection Actual results: 3G network never gets configured (no PPP device). Expected results: A working 3G network connection. Additional info: SElinux is disabled. I tried to downgrade the NetworkManager and ModemManager packages without success, I had the same issue.
Oops, there's a memory corruption somewhere: modem-manager[3142]: <debug> [1310599117.989402] [mm-at-serial-port.c:298] debug_log(): (ttyUSB2): --> 'AT+CGATT=1<CR>' modem-manager[3142]: <debug> [1310599118.008005] [mm-at-serial-port.c:298] debug_log(): (ttyUSB2): <-- '<CR><LF>ERROR<CR><LF>' modem-manager[3142]: <debug> [1310599118.008087] [mm-serial-parsers.c:412] mm_serial_parser_v1_parse(): Got failure code 100: Unknown error modem-manager[3142]: <info> [1310599118.010194] [mm-modem.c:742] mm_modem_set_state(): Modem /org/freedesktop/ModemManager/Modems/0: state changed (connecting -> disconnecting) *** glibc detected *** modem-manager: corrupted double-linked list: 0x00000000011b4b20 *** Could you run modem-manager again in gdb to get a backtrace: # MALLOC_CHECK_=2 gdb modem-manager (gdb) r --debug reproduce the error and when it stops: (gdb) bt full Also valgrind output would be useful: # G_SLICE=always-malloc G_DEBUG=gc-friendly valgrind modem-manager --debug
Does this issue go away with latest MM update for F15? https://admin.fedoraproject.org/updates/ModemManager-0.4.998-1.git20110706.fc15 there have been a number of fixes in this area.
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