Bug #1289
Crash: assert "t->s_status != SERVICE_RUNNING " failed (service.c, line 199) - Raspberry Pi
Status:
Fixed
Priority:
Normal
Assignee:
-
Category:
DVB
Target version:
-
Start date:
2012-10-02
Due date:
% Done:
100%
Estimated time:
Found in version:
be6c00788508172d0cd18d4e95efffeb06f0b1f7
Affected Versions:
Description
This crash happened while I was trying to record a program on a channel with low signal.
Traces:
oct. 01 21:23:19 [NOTICE]:Service: Subscription "DVR: Castle": Skipping "Realtek DVB-T RTL2832/F: 602,000 kHz/France 2 HD" -- Quality below 10% oct. 01 21:23:33 [NOTICE]:Service: Subscription "DVR: Castle": Skipping "Realtek DVB-T RTL2832/F: 602,000 kHz/France 2 HD" -- Quality below 10% oct. 01 21:23:47 [NOTICE]:Service: Subscription "DVR: Castle": Skipping "Realtek DVB-T RTL2832/F: 602,000 kHz/France 2 HD" -- Quality below 10% oct. 01 21:24:01 [NOTICE]:Service: Subscription "DVR: Castle": Skipping "Realtek DVB-T RTL2832/F: 602,000 kHz/France 2 HD" -- Quality below 10% oct. 01 21:24:15 [NOTICE]:Service: Subscription "DVR: Castle": Skipping "Realtek DVB-T RTL2832/F: 602,000 kHz/France 2 HD" -- Quality below 10% oct. 01 21:24:29 [NOTICE]:Service: Subscription "DVR: Castle": Skipping "Realtek DVB-T RTL2832/F: 602,000 kHz/France 2 HD" -- Quality below 10% oct. 01 21:24:31 [INFO]:dvr: "Castle" on "France 2 HD" recorder starting oct. 01 21:24:31 [NOTICE]:Service: Subscription "DVR: Castle": Skipping "Realtek DVB-T RTL2832/F: 602,000 kHz/France 2 HD" -- Quality below 10% tvheadend: /home/pi/dev/tvheadend/src/service.c :199 : service_start: L'assertion « t->s_status != SERVICE_RUNNING » a échoué. Abandon (core dumped)
This was on my Raspi, and I enabled the core dumps to see what was going on.
Backtrace of all threads:
Thread 8 (Thread 0x45a68430 (LWP 3011)): #0 0x400e9494 in pthread_cond_wait@@GLIBC_2.4 () from /lib/arm-linux-gnueabihf/libpthread.so.0 #1 0x00039e9c in dvr_thread (aux=0x159dd40) at /home/pi/dev/tvheadend/src/dvr/dvr_rec.c:431 #2 0x400e4bfc in start_thread () from /lib/arm-linux-gnueabihf/libpthread.so.0 #3 0x403b5e98 in ?? () from /lib/arm-linux-gnueabihf/libc.so.6 #4 0x403b5e98 in ?? () from /lib/arm-linux-gnueabihf/libc.so.6 Backtrace stopped: previous frame identical to this frame (corrupt stack?) Thread 7 (Thread 0x41e53430 (LWP 2695)): #0 0x400ec258 in __lll_lock_wait () from /lib/arm-linux-gnueabihf/libpthread.so.0 #1 0x400e6cac in pthread_mutex_lock () from /lib/arm-linux-gnueabihf/libpthread.so.0 #2 0x00046d54 in dvb_table_input (aux=0x108b4f0) at /home/pi/dev/tvheadend/src/dvb/dvb_tables.c:210 #3 0x400e4bfc in start_thread () from /lib/arm-linux-gnueabihf/libpthread.so.0 #4 0x403b5e98 in ?? () from /lib/arm-linux-gnueabihf/libc.so.6 #5 0x403b5e98 in ?? () from /lib/arm-linux-gnueabihf/libc.so.6 Backtrace stopped: previous frame identical to this frame (corrupt stack?) Thread 6 (Thread 0x46361430 (LWP 2972)): #0 0x400ec7d0 in read () from /lib/arm-linux-gnueabihf/libpthread.so.0 #1 0x400ec044 in __pthread_enable_asynccancel () from /lib/arm-linux-gnueabihf/libpthread.so.0 #2 0x0000defc in tcp_fill_htsbuf_from_fd (hq=0x46360d60, fd=-1) at /home/pi/dev/tvheadend/src/tcp.c:229 #3 tcp_read_line (fd=-1, buf=0x463604cc "POST", bufsize=1024, spill=0x46360d60) at /home/pi/dev/tvheadend/src/tcp.c:255 #4 0x0000f274 in http_serve_requests (hc=0x46360cfc, spill=0x46360d60) at /home/pi/dev/tvheadend/src/http.c:718 #5 0x0000f41c in http_serve (fd=18, opaque=<optimized out>, peer=0x17f76ac, self=0x17f76bc) at /home/pi/dev/tvheadend/src/http.c:791 #6 0x0000d9a8 in tcp_server_start (aux=0x17f76a0) at /home/pi/dev/tvheadend/src/tcp.c:401 #7 0x400e4bfc in start_thread () from /lib/arm-linux-gnueabihf/libpthread.so.0 #8 0x403b5e98 in ?? () from /lib/arm-linux-gnueabihf/libc.so.6 #9 0x403b5e98 in ?? () from /lib/arm-linux-gnueabihf/libc.so.6 Backtrace stopped: previous frame identical to this frame (corrupt stack?) Thread 5 (Thread 0x42653430 (LWP 2696)): #0 0x400e9494 in pthread_cond_wait@@GLIBC_2.4 () from /lib/arm-linux-gnueabihf/libpthread.so.0 #1 0x000257a8 in serviceprobe_thread (aux=<optimized out>) at /home/pi/dev/tvheadend/src/serviceprobe.c:103 #2 0x400e4bfc in start_thread () from /lib/arm-linux-gnueabihf/libpthread.so.0 #3 0x403b5e98 in ?? () from /lib/arm-linux-gnueabihf/libc.so.6 #4 0x403b5e98 in ?? () from /lib/arm-linux-gnueabihf/libc.so.6 Backtrace stopped: previous frame identical to this frame (corrupt stack?) Thread 4 (Thread 0x415d0430 (LWP 2693)): #0 0x403b65c4 in epoll_wait () from /lib/arm-linux-gnueabihf/libc.so.6 #1 0x0000d7c4 in tcp_server_loop (aux=<optimized out>) at /home/pi/dev/tvheadend/src/tcp.c:426 #2 0x400e4bfc in start_thread () from /lib/arm-linux-gnueabihf/libpthread.so.0 #3 0x403b5e98 in ?? () from /lib/arm-linux-gnueabihf/libc.so.6 #4 0x403b5e98 in ?? () from /lib/arm-linux-gnueabihf/libc.so.6 Backtrace stopped: previous frame identical to this frame (corrupt stack?) Thread 3 (Thread 0x42e53430 (LWP 2702)): #0 0x400e984c in pthread_cond_timedwait@@GLIBC_2.4 () from /lib/arm-linux-gnueabihf/libpthread.so.0 #1 0x00015d74 in _epggrab_internal_thread (p=<optimized out>) at /home/pi/dev/tvheadend/src/epggrab.c:99 #2 0x400e4bfc in start_thread () from /lib/arm-linux-gnueabihf/libpthread.so.0 #3 0x403b5e98 in ?? () from /lib/arm-linux-gnueabihf/libc.so.6 #4 0x403b5e98 in ?? () from /lib/arm-linux-gnueabihf/libc.so.6 Backtrace stopped: previous frame identical to this frame (corrupt stack?) Thread 2 (Thread 0x40dd0430 (LWP 2692)): #0 0x400e9494 in pthread_cond_wait@@GLIBC_2.4 () from /lib/arm-linux-gnueabihf/libpthread.so.0 #1 0x0001c910 in service_saver (aux=<optimized out>) at /home/pi/dev/tvheadend/src/service.c:963 #2 0x400e4bfc in start_thread () from /lib/arm-linux-gnueabihf/libpthread.so.0 #3 0x403b5e98 in ?? () from /lib/arm-linux-gnueabihf/libc.so.6 #4 0x403b5e98 in ?? () from /lib/arm-linux-gnueabihf/libc.so.6 Backtrace stopped: previous frame identical to this frame (corrupt stack?) Thread 1 (Thread 0x4041b000 (LWP 2691)): #0 0x4031abfc in raise () from /lib/arm-linux-gnueabihf/libc.so.6 #1 0x4031e97c in abort () from /lib/arm-linux-gnueabihf/libc.so.6 #2 0x00000088 in ?? () #3 0x00000088 in ?? () Backtrace stopped: previous frame identical to this frame (corrupt stack?)
If this can help...
History
Updated by Adam Sutton about 12 years ago
Updated by - Category changed from General to DVB
- Status changed from New to Need feedback
- Assignee deleted (
Hein Rigolo)
Guillaume,
Do you have any more context for that log? Would be nice to see the rest of it from when the recording/tuning started etc...
Though I'll try and have a look for possible issues.
Adam
Updated by Adam Sutton about 12 years ago
I think I can see a possible issue, though would be useful to have some more context. If this can be repeated with debug enabled that would really help.
Adam
Updated by Adam Sutton about 12 years ago
I think I can see what has happened here. And its all my fault 
We slightly tweaked the service_find call to better deal with a couple of use cases, but unfortunately it turns out I might have broken it where the available services are <10% (which is the case here) but an existing subscription already exists.
I think its a very simple fix and I will post shortly.
Adam
Updated by Adam Sutton about 12 years ago
- Status changed from Need feedback to Fixed
- % Done changed from 0 to 100
Applied in changeset commit:4310485eb0b5fa83d8d37240db53fa0ee115ab63.
Updated by Guillaume B about 12 years ago
Updated by Well, that was quick !
I don't know if I'll be able to reproduce the bug soon, I switched the antenna cable to the building's own cable, which is maxed out in signal quality.
Anyway, thanks for the fix, I updated tvheadend.
Updated by Adam Sutton about 12 years ago
Yeah it might just be a case of suck it and see, however I can certainly see that in your situation (poor signal) the code was definitely wrong and could certainly cause a crash the way you described it.
Adam