Bug 721182 - Unable to connect to 3G network
Summary: Unable to connect to 3G network
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Fedora
Classification: Fedora
Component: NetworkManager
Version: 15
Hardware: x86_64
OS: Linux
unspecified
urgent
Target Milestone: ---
Assignee: Dan Williams
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2011-07-13 23:33 UTC by Kennie Cruz
Modified: 2012-08-07 16:02 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2012-08-07 16:02:21 UTC
Type: ---


Attachments (Terms of Use)
NetworkManager and ModemManager log (46.64 KB, text/plain)
2011-07-13 23:33 UTC, Kennie Cruz
no flags Details

Description Kennie Cruz 2011-07-13 23:33:15 UTC
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.

Comment 1 Jirka Klimes 2011-07-14 12:45:43 UTC
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

Comment 2 Dan Williams 2011-07-19 00:16:45 UTC
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.

Comment 3 Fedora End Of Life 2012-08-07 16:02:23 UTC
This message is a notice that Fedora 15 is now at end of life. Fedora
has stopped maintaining and issuing updates for Fedora 15. It is
Fedora's policy to close all bug reports from releases that are no
longer maintained. At this time, all open bugs with a Fedora 'version'
of '15' have been closed as WONTFIX.

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