$ gdb clight
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Reading symbols from clight...
(No debugging symbols found in clight)
(gdb) run
Starting program: /usr/bin/clight
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
Config file /home/yochanan/.config/clight.conf not found.
Inhibit module is not needed. Disabling.
Clightd found, version: 4.2.
AC curve: y = -0.024825 + 0.191641x + -0.008928x^2
BATT curve: y = -0.010629 + 0.153844x + -0.007284x^2
AC cable disconnected.
Laptop lid opened.
Emitting AcState property
40.38 -105.09 loaded from cache file.
Emitting LidState property
Loc distance: 40.38,-105.09 -> 91.00,181.00 : 3448.01 km.
New location received: 40.38, -105.09.
Set timeout of 0s 1ns on fd 24.
Emitting Location property
Currently inside an event.
Next alarm due to: Fri Jun 12 20:29:00 2020
Set timeout of 1334s 0ns on fd 24.
Emitting Sunrise property
Set timeout of 0s 1ns on fd 25.
Sensor '/dev/video0' is now available.
Resumed as a sensor is now available.
Emitting Sunset property
Set timeout of 0s 1ns on fd 25.
Emitting DayTime property
Captured [5/5] from '/dev/video0'. Ambient brightness: 0.912983.
Ambient brightness: 0.913 -> Backlight pct: 0.787.
Set timeout of 600s 0ns on fd 25.
Emitting NextEvent property
Emitting InEvent property
Emitting SensorAvail property
Emitting AmbientBr property
Emitting BlPct property
40.43 -105.05 received from Geoclue2.
40.39 -105.05 received from Geoclue2.
Loc distance: 40.39,-105.05 -> 40.38,-105.09 : 2.47 km.
Failed to validate location request.
Loc distance: 40.39,-105.05 -> 40.38,-105.09 : 2.47 km.
Failed to validate location request.
40.40 -105.05 received from Geoclue2.
Loc distance: 40.40,-105.05 -> 40.38,-105.09 : 2.75 km.
Failed to validate location request.
40.42 -105.05 received from Geoclue2.
Loc distance: 40.42,-105.05 -> 40.38,-105.09 : 3.63 km.
Failed to validate location request.
40.39 -105.05 received from Geoclue2.
Loc distance: 40.39,-105.05 -> 40.38,-105.09 : 2.46 km.
Failed to validate location request.
40.43 -105.05 received from Geoclue2.
Loc distance: 40.43,-105.05 -> 40.38,-105.09 : 4.04 km.
Failed to validate location request.
40.42 -105.05 received from Geoclue2.
Loc distance: 40.42,-105.05 -> 40.38,-105.09 : 3.55 km.
Failed to validate location request.
Captured [5/5] from '/dev/video0'. Ambient brightness: 0.910590.
Ambient brightness: 0.911 -> Backlight pct: 0.786.
Set timeout of 600s 0ns on fd 25.
Emitting AmbientBr property
Emitting BlPct property
40.39 -105.05 received from Geoclue2.
Loc distance: 40.39,-105.05 -> 40.38,-105.09 : 2.46 km.
Failed to validate location request.
40.43 -105.05 received from Geoclue2.
Loc distance: 40.43,-105.05 -> 40.38,-105.09 : 4.04 km.
Failed to validate location request.
40.42 -105.05 received from Geoclue2.
Loc distance: 40.42,-105.05 -> 40.38,-105.09 : 3.54 km.
Failed to validate location request.
40.42 -105.05 received from Geoclue2.
Loc distance: 40.42,-105.05 -> 40.38,-105.09 : 3.57 km.
Failed to validate location request.
40.42 -105.05 received from Geoclue2.
Loc distance: 40.42,-105.05 -> 40.38,-105.09 : 3.57 km.
Failed to validate location request.
40.42 -105.05 received from Geoclue2.
Loc distance: 40.42,-105.05 -> 40.38,-105.09 : 3.57 km.
Failed to validate location request.
40.42 -105.05 received from Geoclue2.
Loc distance: 40.42,-105.05 -> 40.38,-105.09 : 3.64 km.
Failed to validate location request.
Captured [5/5] from '/dev/video0'. Ambient brightness: 0.794915.
Ambient brightness: 0.795 -> Backlight pct: 0.752.
Set timeout of 600s 0ns on fd 25.
Emitting AmbientBr property
Emitting BlPct property
40.39 -105.05 received from Geoclue2.
Loc distance: 40.39,-105.05 -> 40.38,-105.09 : 2.45 km.
Failed to validate location request.
40.43 -105.05 received from Geoclue2.
Loc distance: 40.43,-105.05 -> 40.38,-105.09 : 4.15 km.
Failed to validate location request.
40.39 -105.05 received from Geoclue2.
Loc distance: 40.39,-105.05 -> 40.38,-105.09 : 2.47 km.
Failed to validate location request.
40.39 -105.05 received from Geoclue2.
Loc distance: 40.39,-105.05 -> 40.38,-105.09 : 2.46 km.
Failed to validate location request.
40.43 -105.05 received from Geoclue2.
Loc distance: 40.43,-105.05 -> 40.38,-105.09 : 4.06 km.
Failed to validate location request.
40.39 -105.05 received from Geoclue2.
Loc distance: 40.39,-105.05 -> 40.38,-105.09 : 2.45 km.
Failed to validate location request.
40.43 -105.05 received from Geoclue2.
Loc distance: 40.43,-105.05 -> 40.38,-105.09 : 4.07 km.
Failed to validate location request.
40.43 -105.05 received from Geoclue2.
Loc distance: 40.43,-105.05 -> 40.38,-105.09 : 4.04 km.
Failed to validate location request.
40.39 -105.05 received from Geoclue2.
Loc distance: 40.39,-105.05 -> 40.38,-105.09 : 2.46 km.
Failed to validate location request.
40.43 -105.05 received from Geoclue2.
Loc distance: 40.43,-105.05 -> 40.38,-105.09 : 4.12 km.
Failed to validate location request.
40.40 -105.05 received from Geoclue2.
Loc distance: 40.40,-105.05 -> 40.38,-105.09 : 2.74 km.
Failed to validate location request.
Currently inside an event.
Next alarm due to: Fri Jun 12 20:59:00 2020
Set timeout of 1800s 0ns on fd 24.
Set timeout of 0s 1ns on fd 25.
Emitting DayTime property
Captured [5/5] from '/dev/video0'. Ambient brightness: 0.804261.
Ambient brightness: 0.804 -> Backlight pct: 0.755.
Set timeout of 600s 0ns on fd 25.
Emitting AmbientBr property
Emitting BlPct property
40.43 -105.05 received from Geoclue2.
Loc distance: 40.43,-105.05 -> 40.38,-105.09 : 4.04 km.
Failed to validate location request.
40.39 -105.05 received from Geoclue2.
Loc distance: 40.39,-105.05 -> 40.38,-105.09 : 2.46 km.
Failed to validate location request.
40.43 -105.05 received from Geoclue2.
Loc distance: 40.43,-105.05 -> 40.38,-105.09 : 4.06 km.
Failed to validate location request.
40.40 -105.05 received from Geoclue2.
Loc distance: 40.40,-105.05 -> 40.38,-105.09 : 2.74 km.
Failed to validate location request.
40.40 -105.05 received from Geoclue2.
Loc distance: 40.40,-105.05 -> 40.38,-105.09 : 2.73 km.
Failed to validate location request.
Captured [5/5] from '/dev/video0'. Ambient brightness: 0.456732.
Ambient brightness: 0.457 -> Backlight pct: 0.540.
Set timeout of 600s 0ns on fd 25.
Emitting AmbientBr property
Emitting BlPct property
Captured [5/5] from '/dev/video0'. Ambient brightness: 0.036863.
Ambient brightness: 0.037 -> Backlight pct: 0.045.
Emitting AmbientBr property
Emitting BlPct property
39.74 -105.00 received from Geoclue2.
Loc distance: 39.74,-105.00 -> 40.38,-105.09 : 44.31 km.
Failed to validate location request.
40.42 -105.05 received from Geoclue2.
Loc distance: 40.42,-105.05 -> 40.38,-105.09 : 3.55 km.
Failed to validate location request.
40.39 -105.05 received from Geoclue2.
Loc distance: 40.39,-105.05 -> 40.38,-105.09 : 2.45 km.
Failed to validate location request.
40.39 -105.05 received from Geoclue2.
Loc distance: 40.39,-105.05 -> 40.38,-105.09 : 2.45 km.
Failed to validate location request.
40.43 -105.05 received from Geoclue2.
Loc distance: 40.43,-105.05 -> 40.38,-105.09 : 4.06 km.
Failed to validate location request.
40.43 -105.05 received from Geoclue2.
Loc distance: 40.43,-105.05 -> 40.38,-105.09 : 4.06 km.
Failed to validate location request.
AC cable connected.
Set timeout of 0s 1ns on fd 25.
Emitting AcState property
Captured [5/5] from '/dev/video0'. Ambient brightness: 0.116863.
Ambient brightness: 0.117 -> Backlight pct: 0.187.
Set timeout of 300s 0ns on fd 25.
Emitting AmbientBr property
Emitting BlPct property
40.39 -105.05 received from Geoclue2.
Loc distance: 40.39,-105.05 -> 40.38,-105.09 : 2.45 km.
Failed to validate location request.
40.43 -105.05 received from Geoclue2.
Loc distance: 40.43,-105.05 -> 40.38,-105.09 : 4.07 km.
Failed to validate location request.
40.39 -105.05 received from Geoclue2.
Loc distance: 40.39,-105.05 -> 40.38,-105.09 : 2.46 km.
Failed to validate location request.
40.43 -105.05 received from Geoclue2.
Loc distance: 40.43,-105.05 -> 40.38,-105.09 : 4.05 km.
Failed to validate location request.
40.39 -105.05 received from Geoclue2.
Loc distance: 40.39,-105.05 -> 40.38,-105.09 : 2.45 km.
Failed to validate location request.
40.43 -105.05 received from Geoclue2.
Loc distance: 40.43,-105.05 -> 40.38,-105.09 : 4.06 km.
Failed to validate location request.
40.39 -105.05 received from Geoclue2.
Loc distance: 40.39,-105.05 -> 40.38,-105.09 : 2.45 km.
Failed to validate location request.
40.43 -105.05 received from Geoclue2.
Loc distance: 40.43,-105.05 -> 40.38,-105.09 : 4.06 km.
Failed to validate location request.
40.39 -105.05 received from Geoclue2.
Loc distance: 40.39,-105.05 -> 40.38,-105.09 : 2.46 km.
Failed to validate location request.
40.42 -105.05 received from Geoclue2.
Loc distance: 40.42,-105.05 -> 40.38,-105.09 : 3.61 km.
Failed to validate location request.
40.39 -105.05 received from Geoclue2.
Loc distance: 40.39,-105.05 -> 40.38,-105.09 : 2.46 km.
Failed to validate location request.
Captured [5/5] from '/dev/video0'. Ambient brightness: 0.294379.
Ambient brightness: 0.294 -> Backlight pct: 0.462.
Set timeout of 300s 0ns on fd 25.
Emitting AmbientBr property
Emitting BlPct property
40.43 -105.05 received from Geoclue2.
Loc distance: 40.43,-105.05 -> 40.38,-105.09 : 4.04 km.
Failed to validate location request.
40.40 -105.05 received from Geoclue2.
Loc distance: 40.40,-105.05 -> 40.38,-105.09 : 2.73 km.
Failed to validate location request.
Captured [5/5] from '/dev/video0'. Ambient brightness: 0.329804.
Ambient brightness: 0.330 -> Backlight pct: 0.510.
Set timeout of 300s 0ns on fd 25.
Emitting AmbientBr property
Emitting BlPct property

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7eb732e in ?? () from /usr/lib/libm.so.6
(gdb) bt
#0  0x00007ffff7eb732e in ?? () from /usr/lib/libm.so.6
#1  0x0000555555569218 in ?? ()
#2  0x0000555555560809 in ?? ()
#3  0x0000555555560a6d in ?? ()
#4  0x0000555555560a6d in ?? ()
#5  0x0000555555560a6d in ?? ()
#6  0x0000555555560a6d in ?? ()
#7  0x0000555555560a6d in ?? ()
#8  0x0000555555560a6d in ?? ()
#9  0x0000555555560a6d in ?? ()
#10 0x0000555555560a6d in ?? ()
#11 0x0000555555560a6d in ?? ()
#12 0x0000555555560a6d in ?? ()
#13 0x0000555555560a6d in ?? ()
#14 0x0000555555560a6d in ?? ()
#15 0x0000555555560a6d in ?? ()
#16 0x0000555555560a6d in ?? ()
#17 0x0000555555560a6d in ?? ()
#18 0x0000555555560a6d in ?? ()
#19 0x0000555555560a6d in ?? ()
#20 0x0000555555560a6d in ?? ()
#21 0x0000555555560a6d in ?? ()
#22 0x0000555555560a6d in ?? ()
#23 0x0000555555560a6d in ?? ()
#24 0x0000555555560a6d in ?? ()
#25 0x0000555555560a6d in ?? ()
#26 0x0000555555560a6d in ?? ()
#27 0x0000555555560a6d in ?? ()
#28 0x0000555555560a6d in ?? ()
#29 0x0000555555560a6d in ?? ()
#30 0x0000555555560a6d in ?? ()
#31 0x0000555555560a6d in ?? ()
#32 0x0000555555560a6d in ?? ()
#33 0x0000555555560a6d in ?? ()
#34 0x0000555555560a6d in ?? ()
#35 0x0000555555560a6d in ?? ()
#36 0x0000555555560a6d in ?? ()
#37 0x0000555555560a6d in ?? ()
#38 0x0000555555560a6d in ?? ()
#39 0x0000555555560a6d in ?? ()
#40 0x0000555555560a6d in ?? ()
#41 0x0000555555560a6d in ?? ()
#42 0x0000555555560a6d in ?? ()
#43 0x0000555555560a6d in ?? ()
#44 0x0000555555560a6d in ?? ()
#45 0x0000555555560a6d in ?? ()