Bug 1114404 - NetworkManager segfault: error 6 in libc-2.27.so
NetworkManager segfault: error 6 in libc-2.27.so
Status: NEW
Classification: openSUSE
Product: openSUSE Tumbleweed
Classification: openSUSE
Component: Network
Other openSUSE Factory
: P5 - None : Normal (vote)
: ---
Assigned To: E-mail List
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Reported: 2018-11-02 06:22 UTC by Roman Evstifeev
Modified: 2018-12-11 07:57 UTC (History)
3 users (show)

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NetworkManager segfault coredump (1.13 MB, application/octet-stream)
2018-11-02 06:22 UTC, Roman Evstifeev

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Description Roman Evstifeev 2018-11-02 06:22:16 UTC
Created attachment 788210 [details]
NetworkManager segfault coredump

NertworkManager crashed many times in a row. After few minutes it works again. Not sure how to reproduce.

os: openSUSE Tumbleweed

Ноя 02 10:40:02 linux-fdsk kernel: NetworkManager[21829]: segfault at 10 ip 00007f6121c3aa1e sp 00007ffe5361d2a0 error 6 in libc-2.27.so[7f6121bb7000+1b6000]
Ноя 02 10:40:02 linux-fdsk kernel: Code: 3e 4c 8d 46 f0 c1 fa 05 be 01 00 00 00 49 83 c3 01 48 63 d2 d3 e6 41 09 b4 94 60 08 00 00 4c 89 40 18 48 89 78 10 48 89 47 18 <49> 89 40 10 45 85 ff 0f 84 85 01 00 00 4c 39 5c 24 18 73 0b 80 7c 
Ноя 02 10:40:02 linux-fdsk systemd[1]: Started Process Core Dump (PID 22134/UID 0).
Ноя 02 10:40:02 linux-fdsk systemd[1]: NetworkManager.service: Main process exited, code=dumped, status=11/SEGV
Ноя 02 10:40:02 linux-fdsk systemd[1]: NetworkManager.service: Failed with result 'core-dump'.
Ноя 02 10:40:02 linux-fdsk plasmashell[1959]: qml: applet destroyed
Ноя 02 10:40:02 linux-fdsk systemd-coredump[22135]: Process 21829 (NetworkManager) of user 0 dumped core.

coredump: attached here or https://drive.google.com/file/d/1tx1QtBEQDX3K_taXgor3kpRKAM4PNFbT/view?usp=sharing
Comment 1 Vincent Petry 2018-11-09 17:07:22 UTC
This happened to me since updating to recent snapshots, so it's a regression.

Then I had a laptop issue and reinstalled Tumbleweed 20181107 today.

The NetworkManager segfault still occurs randomly. I also don't know how to reproduce, it happens randomly. Today it happened about three times.

The visual symptoms are that suddenly I get disconnected from the Wifi. Then the Plasma applet displays the list of Wifi networks again, disconnected. When I try to connect to my home network it asks for password again.
I also had other symptoms earlier where clicking on "Connect" just cleared the whole applet and I had to reboot to make it work again.

- OS: openSUSE Tumbleweed 20181107
- NetworkManager-1.14.0-1.1.x86_64
- glibc-2.27-6.1.x86_64
- kwallet is configured in blowfish mode
- plasma5-workspace-5.14.2-1.2.x86_64

Sadly I forgot to setup systemd to have persistent journal, so I'll keep an eye for more info.

As far as I remember the message looked similar to the one from Roman above.

@Roman, do you also have kwallet enabled in case the problem is related ?
Comment 2 Vincent Petry 2018-11-09 17:10:01 UTC
And it case it helps, the laptop is a Dell XPS 13 model 9333 with iwlwifi.
Comment 3 Vincent Petry 2018-11-12 17:32:51 UTC
I had another crash today but the log looked like https://bugzilla.opensuse.org/show_bug.cgi?id=1109086 so I reported there.

Still, I remember seeming the kernel codes in the former crash.
I'll keep an eye on this in case it happens again.