[Pkg-lirc-maint] Bug#872375: lirc: irrecord segfaults when recording a button

James Bottomley James.Bottomley at HansenPartnership.com
Sun Feb 11 18:07:02 UTC 2018

I'm getting this same segfault as well.  My old remote fell apart, so I
was trying to train the IR receiver on a new one (well, the unused VCR
section of the current TV remote.

This is what I get:

Starting program: /usr/bin/irrecord -d /dev/lirc0 -f
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-
Warning: Running as root.
Using raw access on device /dev/lirc0

irrecord -  application for recording IR-codes for usage with lirc
Copyright (C) 1998,1999 Christoph Bartelmus(lirc at bartelmus.de)

This program will record the signals from your remote control
and create a config file for lircd.

A proper config file for lircd is maybe the most vital part of this
package, so you should invest some time to create a working config
file. Although I put a good deal of effort in this program it is often
not possible to automatically recognize all features of a remote
control. Often short-comings of the receiver hardware make it nearly
impossible. If you have problems to create a config file READ THE
DOCUMENTATION at https://sf.net/p/lirc-remotes/wiki

If there already is a remote control of the same brand available at
http://sf.net/p/lirc-remotes you might want to try using such a
remote as a template. The config files already contains all
parameters of the protocol used by remotes of a certain brand and
knowing these parameters makes the job of this program much
easier. There are also template files for the most common protocols
available. Templates can be downloaded using irdb-get(1). You use a
template file by providing the path of the file as a command line

Please take the time to finish the file as described in
https://sourceforge.net/p/lirc-remotes/wiki/Checklist/ an send it
to  <lirc at bartelmus.de> so it can be made available to others.

Press RETURN to continue.

Usually you should not create a new config file for devinput
devices. LIRC is installed with a devinput.lircd.conf file which 
is built for the current system which works with all remotes 
supported by the kernel. There might be a need to update 
this file so it matches the current kernel. For this, use the 
lirc-make-devinput(1) script.

Press RETURN to continue.

Checking for ambient light  creating too much disturbances.
Please don't press any buttons, just wait a few seconds...

No significant noise (received 0 bytes)

Enter name of remote (only ascii, no spaces) :c
Using c.lircd.conf as output filename

Hold down an arbitrary key
Found gap (7941 us)

Please enter the name for the next button (press <ENTER> to finish

Now hold down button "KEY_A".

Program received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()
(gdb) bt
#0  0x0000000000000000 in ?? ()
#1  0x00007ffff79af1eb in record_buttons (btn_state=0x7fffffffe560, 
    last_status=<optimized out>, state=<optimized out>, opts=<optimized
    at irrecord.c:1966
#2  0x000055555555814d in ?? ()
#3  0x0000555555556e4c in ?? ()
#4  0x00007ffff7613f2a in __libc_start_main (main=0x5555555564c0,
    argv=0x7fffffffeb58, init=<optimized out>, fini=<optimized out>, 
    rtld_fini=<optimized out>, stack_end=0x7fffffffeb48)
    at ../csu/libc-start.c:310
#5  0x00005555555574da in ?? ()


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