Tvheadend

See #5659 (from note 16)

And you are missing debug infos aswell as a description of what you did when this happened. This bug report and stacktrace is useless like this (check out the wiki, it contains instructions on how this is done properly).

a description of what you did when this happened
--
Crash occurs randomly when a new recording or streaming request starts.
Crash would almost 100% occur, when doing a scan in another tvheadend (after importing the /playlist/channels.m3u to another tvheadend as Automated IPTV network).

Hardware: ASUS B365 Plus, Intel G5400T, TBS 6209 x1, TechnoTrend TT-budget CT2-4500 x2 (no CAM used)
Environment: Ubuntu 18.04 Desktop 64-bit, kernel 4.18.0-25-generic. CA: newcamd NDS2 (oscam)

Trace: (subsystems: subscription,descrambler
If I provided the wrong debug info, or did not choose the correct subsystems, kindly let me know.

2019-07-26 17:17:13.872 [ ALERT]:CRASH: Signal: 11 in PRG: /usr/bin/tvheadend (4.3-1802~g6be300c43~bionic) [436a7f3090aa06a1603e52e2d3b4cbed7f1a3bf1] CWD: /
2019-07-26 17:17:13.872 [ ALERT]:CRASH: Fault address 0xb0 (Address not mapped)
2019-07-26 17:17:13.872 [ ALERT]:CRASH: Loaded libraries: linux-vdso.so.1 /usr/lib/x86_64-linux-gnu/libhdhomerun.so.4 /usr/lib/x86_64-linux-gnu/libdvbcsa.so.1 /usr/lib/x86_64-linux-gnu/libssl.so.1.1 /usr/lib/x86_64-linux-gnu/libcrypto.so.1.1 /lib/x86_64-linux-gnu/libz.so.1 /usr/lib/x86_64-linux-gnu/libpcre2-8.so.0 /usr/lib/x86_64-linux-gnu/liburiparser.so.1 /usr/lib/x86_64-linux-gnu/libavahi-common.so.3 /usr/lib/x86_64-linux-gnu/libavahi-client.so.3 /usr/lib/x86_64-linux-gnu/libavfilter.so.6 /usr/lib/x86_64-linux-gnu/libavformat.so.57 /usr/lib/x86_64-linux-gnu/libavcodec.so.57 /usr/lib/x86_64-linux-gnu/libavutil.so.55 /usr/lib/x86_64-linux-gnu/libva.so.2 /lib/x86_64-linux-gnu/libdbus-1.so.3 /lib/x86_64-linux-gnu/libsystemd.so.0 /lib/x86_64-linux-gnu/libdl.so.2 /lib/x86_64-linux-gnu/libpthread.so.0 /lib/x86_64-linux-gnu/libm.so.6 /lib/x86_64-linux-gnu/librt.so.1 /lib/x86_64-linux-gnu/libc.so.6 /usr/lib/x86_64-linux-gnu/libavresample.so.3 /usr/lib/x86_64-linux-gnu/libswscale.so.4 /usr/lib/x86_64-linux-gnu/libpostproc.so.54 /usr/lib/x86_64-lin
2019-07-26 17:17:13.872 [ ALERT]:CRASH: Register dump [23]: 00005559893a5b000000000000000000ffffffffffffffff4a0b0100005e708100000000000000a000007fa7145e0d8000000000000009e300007fa71004082000000000000000010000000000000000000000000000010000007fa6b4013e8000000000000000000000000000000000000000000000000000007fa7145e0c600000555988724d710000000000010206002b0000000000330000000000000004000000000000000efffffffe7ffbba1300000000000000b0
2019-07-26 17:17:13.872 [ ALERT]:CRASH: STACKTRACE
2019-07-26 17:17:13.943 [ ALERT]:CRASH: ??:0 0x5559886366dd 0x555988491000
2019-07-26 17:17:13.969 [ ALERT]:CRASH: ??:0 0x7fa75aa8a890 0x7fa75aa78000
2019-07-26 17:17:13.988 [ ALERT]:CRASH: ??:? 0x555988724d71 0x555988491000
2019-07-26 17:17:14.008 [ ALERT]:CRASH: ??:? 0x5559886b04e1 0x555988491000
2019-07-26 17:17:14.026 [ ALERT]:CRASH: ??:? 0x5559886c8ba3 0x555988491000
2019-07-26 17:17:14.044 [ ALERT]:CRASH: ??:? 0x5559886bef72 0x555988491000
2019-07-26 17:17:14.062 [ ALERT]:CRASH: ??:? 0x5559886bf3d7 0x555988491000
2019-07-26 17:17:14.080 [ ALERT]:CRASH: ??:? 0x5559886b7b9b 0x555988491000
2019-07-26 17:17:14.098 [ ALERT]:CRASH: ??:? 0x5559886bb14c 0x555988491000
2019-07-26 17:17:14.117 [ ALERT]:CRASH: ??:0 0x5559885f6708 0x555988491000
2019-07-26 17:17:14.135 [ ALERT]:CRASH: ??:0 0x7fa75aa7f6db 0x7fa75aa78000
2019-07-26 17:17:14.135 [ ALERT]:CRASH: clone+0x3f (/lib/x86_64-linux-gnu/libc.so.6)

You have to install tvheadend debug package. tvheadend-dbg_4.3-1802~g6be300c43~bionic_amd64.deb

Pablo R. wrote:

You have to install tvheadend debug package. tvheadend-dbg_4.3-1802~g6be300c43~bionic_amd64.deb

OK, I'll do it now.

Just encountered another crash when a recording starting.

July 26 21:14:02 rec-hdctv tvheadend²³³⁹⁹: CRASH: Signal: 11 in PRG: /usr/bin/tvheadend (4.3-1802~g6be300c43~bionic) [436a7f3090aa06a1603e52e2d3b4cbed7f1a3bf1] CWD: /
July 26 21:14:02 rec-hdctv tvheadend²³³⁹⁹: CRASH: Fault address 0x30 (Address not mapped)
July 26 21:14:02 rec-hdctv tvheadend²³³⁹⁹: CRASH: Loaded libraries: linux-vdso.so.1 /usr/lib/x86_64-linux-gnu/libhdhomerun.so.4 /usr/lib/x86_64-linux-gnu/libdvbcsa.so.1 /usr/lib/x86_64-linux-gnu/libssl.so.1.1 /usr/lib/x86_64-linux-gnu/libcrypto.so.1.1 /lib/x86_64-linux-gnu/libz.so.1 /usr/lib/x86_64-linux-gnu/libpcre2-8.so.0 /usr/lib/x86_64-linux-gnu/liburiparser.so.1 /usr/lib/x86_64-linux-gnu/libavahi-common.so.3 /usr/lib/x86_64-linux-gnu/libavahi-client.so.3 /usr/lib/x86_64-linux-gnu/libavfilter.so.6 /usr/lib/x86_64-linux-gnu/libavformat.so.57 /usr/lib/x86_64-linux-gnu/libavcodec.so.57 /usr/lib/x86_64-linux-gnu/libavutil.so.55 /usr/lib/x86_64-linux-gnu/libva.so.2 /lib/x86_64-linux-gnu/libdbus-1.so.3 /lib/x86_64-linux-gnu/libsystemd.so.0 /lib/x86_64-linux-gnu/libdl.so.2 /lib/x86_64-linux-gnu/libpthread.so.0 /lib/x86_64-linux-gnu/libm.so.6 /lib/x86_64-linux-gnu/librt.so.1 /lib/x86_64-linux-gnu/libc.so.6 /usr/lib/x86_64-linux-gnu/libavresample.so.3 /usr/lib/x86_64-linux-gnu/libswscale.so.4 /usr/lib/x86_64-linux-gnu/libpostproc.so.54 /usr/lib/x86_64-lin
July 26 21:14:02 rec-hdctv tvheadend²³³⁹⁹: CRASH: Register dump [23]: 00005598839d1fb00000000000000000ffffffffffffffff4a0b010000627080000000000000002000007f8d06df4d8000000000000009db00007f8d08086ac000000000000000010000000000000000000000000000010000007f8cbc050af000000000000000000000000000000000000000000000000000007f8d06df4c600000559882585d710000000000010202002b0000000000330000000000000004000000000000000efffffffe7ffbba130000000000000030
July 26 21:14:02 rec-hdctv tvheadend²³³⁹⁹: CRASH: STACKTRACE
July 26 21:14:02 rec-hdctv tvheadend²³³⁹⁹: CRASH: /build/tvheadend-PKSVIp/tvheadend-4.3/src/trap.c:176 0x5598824976dd 0x5598822f2000
July 26 21:14:02 rec-hdctv tvheadend²³³⁹⁹: CRASH: ??:0 0x7f8d55009890 0x7f8d54ff7000
July 26 21:14:02 rec-hdctv tvheadend²³³⁹⁹: CRASH: /build/tvheadend-PKSVIp/tvheadend-4.3/src/descrambler/cclient.c:883 0x559882585d71 0x5598822f2000
July 26 21:14:02 rec-hdctv tvheadend²³³⁹⁹: CRASH: /build/tvheadend-PKSVIp/tvheadend-4.3/src/descrambler/descrambler.c:1346 0x5598825114e1 0x5598822f2000
July 26 21:14:02 rec-hdctv tvheadend²³³⁹⁹: CRASH: /build/tvheadend-PKSVIp/tvheadend-4.3/src/input/mpegts/mpegts_table.c:101 0x559882529ba3 0x5598822f2000
July 26 21:14:02 rec-hdctv tvheadend²³³⁹⁹: CRASH: /build/tvheadend-PKSVIp/tvheadend-4.3/src/input/mpegts/dvb_psi_lib.c:135 (discriminator 4) 0x55988251ff72 0x5598822f2000
July 26 21:14:02 rec-hdctv tvheadend²³³⁹⁹: CRASH: /build/tvheadend-PKSVIp/tvheadend-4.3/src/input/mpegts/dvb_psi_lib.c:185 0x5598825203d7 0x5598822f2000
July 26 21:14:02 rec-hdctv tvheadend²³³⁹⁹: CRASH: /build/tvheadend-PKSVIp/tvheadend-4.3/src/input/mpegts/mpegts_input.c:1338 (discriminator 3) 0x559882518b9b 0x5598822f2000
July 26 21:14:02 rec-hdctv tvheadend²³³⁹⁹: CRASH: /build/tvheadend-PKSVIp/tvheadend-4.3/src/input/mpegts/mpegts_input.c:1544 0x55988251c14c 0x5598822f2000
July 26 21:14:02 rec-hdctv tvheadend²³³⁹⁹: CRASH: /build/tvheadend-PKSVIp/tvheadend-4.3/src/tvh_thread.c:91 0x559882457708 0x5598822f2000
July 26 21:14:02 rec-hdctv tvheadend²³³⁹⁹: CRASH: ??:0 0x7f8d54ffe6db 0x7f8d54ff7000
July 26 21:14:02 rec-hdctv tvheadend²³³⁹⁹: CRASH: clone+0x3f (/lib/x86_64-linux-gnu/libc.so.6)

Pablo R. wrote:

See #5659 (from note 16)

Just read through your issue posted. Most likely I'm having the same problem here.

Is there anything I can do to help?

As you can see I have done some analysis in the other issue, you can read through it and if you don't understand something ask for clarification or if you find a mistake or disagree mention that.

After that it gets more complicated, finding the cause of the issue is not that easy. That requires working with gdb and checking why the destroyed destination is not "deleted from the distribution list".

I am sure your issue is the same as the other one, so we should continue all communication there so the information is not all over the place but at one place.

Sure thank you for the suggestion.
I'll try to replicate your practice here on my system. And post under your issue: https://tvheadend.org/issues/5659

Please help to close this topic.