lightdm crashed with SIGSEGV in munmap()

[Benoit THIBAUD]

didn't notice anything except that message that I had a bug to report...

ProblemType: Crash
DistroRelease: Ubuntu 17.04
Package: lightdm 1.21.5-0ubuntu1
ProcVersionSignature: Ubuntu 4.10.0-13.15-generic 4.10.1
Uname: Linux 4.10.0-13-generic x86_64
ApportVersion: 2.20.4-0ubuntu2
Architecture: amd64
Date: Wed Mar 22 20:03:09 2017
ExecutablePath: /usr/sbin/lightdm
InstallationDate: Installed on 2017-03-16 (6 days ago)
InstallationMedia: Xubuntu 17.04 "Zesty Zapus" - Alpha amd64 (20170316)
LightdmConfig:
 [Seat:*]
 autologin-guest=false
 autologin-user=ben
 autologin-user-timeout=0
ProcCmdline: lightdm --session-child 13 16
ProcEnviron:
 LANG=fr_FR.UTF-8
 PATH=(custom, no user)
Signal: 11
SourcePackage: lightdm
StacktraceTop:
 munmap () at ../sysdeps/unix/syscall-template.S:84
 _dl_unmap_segments (l=l@entry=0x55eb13fedb40) at ./dl-unmap-segments.h:32
 _dl_unmap (map=map@entry=0x55eb13fedb40) at ../sysdeps/x86_64/tlsdesc.c:140
 _dl_close_worker (map=map@entry=0x55eb13fedb40, force=force@entry=false) at dl-close.c:678
 _dl_close_worker (force=false, map=0x55eb13fedb40) at dl-close.c:125
Title: lightdm crashed with SIGSEGV in munmap()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 munmap () at ../sysdeps/unix/syscall-template.S:84
 _dl_unmap_segments (l=l@entry=0x55eb13fedb40) at ./dl-unmap-segments.h:32
 _dl_unmap (map=map@entry=0x55eb13fedb40) at ../sysdeps/x86_64/tlsdesc.c:140
 _dl_close_worker (map=map@entry=0x55eb13fedb40, force=force@entry=false) at dl-close.c:678
 _dl_close_worker (force=false, map=0x55eb13fedb40) at dl-close.c:125

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[corrado venturini (corradoventu)]

corrado@corrado-art3:~/Documents$ ./inxi -Fx
System: Host: corrado-art3 Kernel: 4.11.0-9-generic x86_64 (64 bit gcc: 6.3.0)
           Desktop: Gnome 3.24.2 (Gtk 3.22.15-0ubuntu2) Distro: Ubuntu Artful Aardvark (development branch)
Machine: Device: desktop Mobo: Gigabyte model: H87M-D3H v: x.x UEFI: American Megatrends v: F3 date: 04/24/2013
CPU: Dual core Intel Core i3-4130 (-HT-MCP-) cache: 3072 KB
           flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 13567
           clock speeds: max: 3400 MHz 1: 3400 MHz 2: 2720 MHz 3: 1712 MHz 4: 3400 MHz
Graphics: Card: Intel 4th Generation Core Processor Family Integrated Graphics Controller bus-ID: 00:02.0
           Display Server: x11 (X.Org 1.19.3) drivers: modesetting (unloaded: fbdev,vesa)
           Resolution: 1680x1050@59.88hz
           OpenGL: renderer: Mesa DRI Intel Haswell version: 4.5 Mesa 17.1.2 Direct Render: Yes
Audio: Card-1 Intel 8 Series/C220 Series High Definition Audio Controller
           driver: snd_hda_intel bus-ID: 00:1b.0
           Card-2 Intel Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller
           driver: snd_hda_intel bus-ID: 00:03.0
           Sound: Advanced Linux Sound Architecture v: k4.11.0-9-generic
Network: Card: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
           driver: r8169 v: 2.3LK-NAPI port: e000 bus-ID: 02:00.0
           IF: enp2s0 state: up speed: 100 Mbps duplex: full mac: 94:de:80:7e:90:a7
Drives: HDD Total Size: 1000.2GB (1.5% used)
           ID-1: /dev/sda model: ST1000DM003 size: 1000.2GB
Partition: ID-1: / size: 32G used: 6.1G (21%) fs: ext4 dev: /dev/sda8
           ID-2: swap-1 size: 8.59GB used: 0.00GB (0%) fs: swap dev: /dev/sda2
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 29.8C mobo: 27.8C
           Fan Speeds (in rpm): cpu: N/A
Info: Processes: 225 Uptime: 1:52 Memory: 1020.8/7861.1MB Init: systemd runlevel: 5 Gcc sys: N/A
           Client: Shell (bash 4.4.121) inxi: 2.3.22
corrado@corrado-art3:~/Documents$

[Si Dedman (si-dedman)]

Five identical bugs have been autoduplicated to here:
https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1700391
https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1720474
https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1744450
https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1756632
https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1761702
All are "lightdm crashed with SIGSEGV in _dl_fini()" rather than munmap()
If these are not the same bug then those 5 should be merged and unduplicated from this bug.