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Bug 783402 - Crashes with segfault (src/platform/nm-platform.c:2650 assertion '<dropped>' failed) when connecting to wwan
Crashes with segfault (src/platform/nm-platform.c:2650 assertion '<dropped>' ...
Status: RESOLVED DUPLICATE of bug 782545
Product: NetworkManager
Classification: Platform
Component: IP and DNS config
1.8.x
Other Linux
: Normal major
: ---
Assigned To: NetworkManager maintainer(s)
NetworkManager maintainer(s)
Depends on:
Blocks:
 
 
Reported: 2017-06-04 11:44 UTC by Tore Anderson
Modified: 2017-06-04 12:43 UTC
See Also:
GNOME target: ---
GNOME version: ---

Attachments
NM debug log (79.83 KB, text/plain)
2017-06-04 11:44 UTC, Tore Anderson 		Details

Description Tore Anderson 2017-06-04 11:44:02 UTC 
Created attachment 353140 [details]
NM debug log

When connecting to mobile broadband, like so:

$ nmcli connection add connection.type gsm ifname '' apn internet.public

NM will, after making the connection attempt, crash and burn.

I'm attaching a full debug log, containing the following error messages:

juni 04 13:26:42 NetworkManager[2660]: ((src/platform/nm-platform.c:2650)): assertion '<dropped>' failed
juni 04 13:26:42 NetworkManager[2660]: g_array_sort_with_data: assertion 'array != NULL' failed
juni 04 13:26:42 systemd[1]: NetworkManager.service: Main process exited, code=dumped, status=11/SEGV

It seems IPv6 related somehow, even though the APN in question does not support IPv6 (so there was no IPv6 addressing/config returned from the modem/network). Nevertheless it does work to explicitly disable IPv6 in the connection profile:

$ nmcli connection add connection.type gsm ifname '' apn internet.public ipv6.method ignore

This behaviour is observed on Fedora 26 Alpha, using distro NM 1.8.0-3 RPMs. The crash is 100% reproducable.
Comment 1 Beniamino Galvani 2017-06-04 12:43:34 UTC 
Thanks for the report, this should be fixed on master.

*** This bug has been marked as a duplicate of bug 782545 ***