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manio / vdr-plugin-dvbapi

VDR dvbapi plugin for use with OSCam
http://www.streamboard.tv/wbb2/thread.php?threadid=40060
GNU General Public License v2.0
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kernel traps with dvbapi #60

Closed 3PO closed 10 years ago

3PO commented 10 years ago

Since i've installed the sat>ip-Plugin, dvbapi crashs in some rare cases with a kernel trap:

Jun 13 23:20:01 [G2V g2v_rec_msg.sh] Amerika von oben: Waiting for directory... Jun 13 23:20:01 [vdr] [17622] recording to '/video/Amerika_von_oben/2014-06-13.23.20.153-0.rec/00001.ts' Jun 13 23:20:01 [vdr] [10912] recording thread started (pid=17622, tid=10912, prio=high) Jun 13 23:20:01 [vdr] [17622] DVBAPI: 7.0 set CAM decrypt (SID 137, caLm 4, HasCaDescriptors 1) Jun 13 23:20:01 [vdr] [10921] receiver on device 8 thread started (pid=17622, tid=10921, prio=high) Jun 13 23:20:02 [kernel] traps: receiver on dev[10921] general protection ip:7f6168bf75d4 sp:7f6089768cb0 error:0 in libvdr-dvbapi.so.2.1.6[7f6168be4000+19000] Jun 13 23:20:03 [G2V g2v_rec_msg.sh] Aufnahme: Amerika von oben Jun 13 23:20:06 [lircd-0.9.0] removed client Jun 13 23:20:06 [root] Focus: 1 Jun 13 23:20:06 [G2V gg_switchhook.sh] /_config/bin/gg_switchhook.sh -switch ActWin <(1078, 1918) 0(Gg_launcher)> Jun 13 23:20:08 [root] Focus: (1078, 1918) 0(Gg_launcher) - 17522 Jun 13 23:20:08 [root] VDR wurde beendet - RC: 0

Backtrace: --> http://bpaste.net/show/370021/

manio commented 10 years ago

Thanks for the backtrace. Please apply this patch and see if it is ok: http://skyboo.net/pub/dvbapi-lock.diff

3PO commented 10 years ago

Hi, i've applied the patch but the problem still exist: :(

Jun 15 10:30:50 [kernel] traps: receiver on dev[31946] general protection ip:7f6f0e451668 sp:7f6e2effcca0 error:0 in libvdr-dvbapi.so.2.1.6[7f6f0e43e000+19000]

Backtrace: --> http://bpaste.net/show/373927/

manio commented 10 years ago

Hmmm ... it's hard to find the cause of this crash. If the locks doesn't help, maybe it's some namespace conflict... Please revert to my clear master and apply the patches in the following order and try to reproduce: http://skyboo.net/pub/dvbapi-lock.diff http://skyboo.net/pub/dvbapi-filter.diff

manio commented 10 years ago

Any news?

3PO commented 10 years ago

Any news?

No, but in this case, no News are good News. ;)

In other words, the kernel trap Problem seems be solved .

manio commented 10 years ago

Ok, thanks, closing.

manio commented 10 years ago

@3PO Forgot to ask: you had both patches applied? Or clean master?

3PO commented 10 years ago

@3PO Forgot to ask: you had both patches applied? Or clean master?

Yes, i applied both patches.

3PO commented 10 years ago

Now i've found a way to reproduce this behavior.

Steps to reproduce:

  1. swtich to a crypted channel
  2. open the femon-Plugin
  3. use the arrow keys to swtich to a SAT>IP Device

When switching is done, the vdr dies with a kernel-trap:

Jun 28 15:56:16 [vdr] [21042] osdteletext-receiver thread ended (pid=20246, tid=21042) Jun 28 15:56:16 [vdr] [20246] buffer stats: 0 (0%) used Jun 28 15:56:16 [vdr] [20246] [softhddev]SetPlayMode: 0 Jun 28 15:56:16 [vdr] [20246] [softhddev]SetVideoDisplayFormat: 1 Jun 28 15:56:16 [vdr] [20246] [softhddev]GetSpuDecoder: Jun 28 15:56:16 [vdr] [20246] DVBAPI: 1.0 set CAM decrypt (SID 113, caLm 4, HasCaDescriptors 1) Jun 28 15:56:16 [vdr] [20246] CAM 6: assigned to device 6 Jun 28 15:56:16 [vdr] [20246] switching to channel 151 Jun 28 15:56:17 [vdr] [21041] ttxtsubs player thread ended (pid=20246, tid=21041) Jun 28 15:56:17 [vdr] [20246] buffer stats: 0 (0%) used Jun 28 15:56:17 [vdr] [20246] ERROR: can't set PID 32 on device 5 Jun 28 15:56:17 [vdr] [20246] ttxtsubs: teletext subtitles replayer started with initial page 000 Jun 28 15:56:17 [vdr] [21069] ttxtsubs player thread started (pid=20246, tid=21069, prio=high) Jun 28 15:56:17 [vdr] [20246] ERROR: can't set PID 32 on device 5 Jun 28 15:56:17 [vdr] [20246] ERROR: can't set PID 767 on device 5 Jun 28 15:56:17 [vdr] [20246] svdrpservice: Invalid server IP '' Jun 28 15:56:17 [vdr] [20246] ERROR: cFemonOsd::SvdrpConnect() cannot connect to SVDRP server. Jun 28 15:56:17 [vdr] [20246] DVBAPI: 7.0 set CAM decrypt (SID 113, caLm 4, HasCaDescriptors 1) Jun 28 15:56:17 [vdr] [21070] receiver on device 8 thread started (pid=20246, tid=21070, prio=high) Jun 28 15:56:17 [vdr] [21069] ttxtsubs player thread ended (pid=20246, tid=21069) Jun 28 15:56:17 [vdr] [20246] buffer stats: 0 (0%) used Jun 28 15:56:17 [vdr] [20246] ttxtsubs: teletext subtitles replayer started with initial page 000 Jun 28 15:56:17 [vdr] [20246] buffer stats: 0 (0%) used Jun 28 15:56:17 [vdr] [21071] ttxtsubs player thread started (pid=20246, tid=21071, prio=high) Jun 28 15:56:17 [vdr] [21072] osdteletext-receiver thread started (pid=20246, tid=21072, prio=high) Jun 28 15:56:17 [vdr] [21047] femon receiver thread ended (pid=20246, tid=21047) Jun 28 15:56:17 [vdr] [21073] femon receiver thread started (pid=20246, tid=21073, prio=high) Jun 28 15:56:17 [vdr] [20246] [softhddev]SetPlayMode: 1 Jun 28 15:56:17 [kernel] traps: receiver on dev[21070] general protection ip:7fe46561072e sp:7fe2b63e9ca0 error:0 in libvdr-dvbapi.so.2.1.6[7fe4655fd000+19000] Jun 28 15:56:17 [lircd-0.9.0] removed client Jun 28 15:56:17 [root] Focus: 1 Jun 28 15:56:17 [G2V gg_switchhook.sh] /_config/bin/gg_switchhook.sh -switch ActWin <(1078, 1918) 0(Gg_launcher)> Jun 28 15:56:18 [root] VDR wurde beendet - RC: 0

Backtrace: --> http://bpaste.net/show/416915/

I dont know if this is a Problem from dvbapi, or SAT>IP?

manio commented 10 years ago

I was contacting the SAT>IP author about this issue and he also don't have an idea of the cause of this problem. It may be also triggered by this specific femon function. I'm sorry, I'm out of ideas and I am affraid I cannot help you more in this case :(

taktiker12 commented 10 years ago

hi the craśh disappear when you set dvbapi on "oscam.conf" without request_mode .