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Latest TBS-5520SE drivers cause Mythbackend to go <defunct>

Latest TBS-5520SE drivers cause Mythbackend to go <defunct>

Postby maff » Mon Aug 07, 2017 11:47 pm

Hi,

I had mythtv working quite happily with a TBS-5520SE until I rebuilt the drivers for a newer kernel version, since that point each time I try and use mythtv the backend drops into a <defunct> state.

Linux version:
Linux MYTHTV 4.10.0-27-generic #30~16.04.2-Ubuntu SMP Thu Jun 29 16:07:46 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

Rebuilt drivers, ran the mythtv setup and and went to set up adapter1 and boom
Code: Select All Code
Jul 26 13:32:29 MYTHTV systemd[1]: Stopped MythTV Backend.
Jul 26 13:32:54 MYTHTV kernel: [ 1202.327897] BUG: unable to handle kernel NULL pointer dereference at 0000000000000050
Jul 26 13:32:54 MYTHTV kernel: [ 1202.327943] IP: dvb_frontend_open+0x4c/0x520 [dvb_core]
Jul 26 13:32:54 MYTHTV kernel: [ 1202.327948] PGD 13634c067
Jul 26 13:32:54 MYTHTV kernel: [ 1202.327950] PUD 1349b9067
Jul 26 13:32:54 MYTHTV kernel: [ 1202.327953] PMD 0
Jul 26 13:32:54 MYTHTV kernel: [ 1202.327957]
Jul 26 13:32:54 MYTHTV kernel: [ 1202.327963] Oops: 0000 [#2] SMP
Jul 26 13:32:54 MYTHTV kernel: [ 1202.327969] Modules linked in: snd_hda_codec_realtek snd_hda_codec_generic av201x(OE) isl6421(OE) cx24123(OE) cx88_dvb(OE) tas2101(OE$
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328042]  nouveau mxm_wmi wmi video i2c_algo_bit ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops drm forcedeth sa$
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328066] CPU: 0 PID: 2704 Comm: mythtv-setup.re Tainted: G      D W  OE   4.10.0-27-generic #30~16.04.2-Ubuntu
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328070] Hardware name: System manufacturer System Product Name/V-M2NC61P, BIOS 0301    12/20/2007
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328075] task: ffff8e2dd8bc5500 task.stack: ffffb545427b8000
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328089] RIP: 0010:dvb_frontend_open+0x4c/0x520 [dvb_core]
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328093] RSP: 0018:ffffb545427bbb98 EFLAGS: 00010297
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328099] RAX: ffffffffc0780ea0 RBX: ffff8e2df86f98f0 RCX: 0000000000000004
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328103] RDX: 0000000000000005 RSI: ffff8e2df737df00 RDI: ffff8e2df29aebe8
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328106] RBP: ffffb545427bbbf0 R08: 0000000000000000 R09: 0000000000000000
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328110] R10: 00000000000000d4 R11: ffff8e2df6881e78 R12: 0000000000000000
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328114] R13: ffff8e2df8a26000 R14: 0000000000000000 R15: ffffffffb79c5c80
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328120] FS:  00007f33cbde28c0(0000) GS:ffff8e2dffc00000(0000) knlGS:0000000000000000
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328124] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328128] CR2: 0000000000000050 CR3: 000000013636d000 CR4: 00000000000006f0
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328132] Call Trace:
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328146]  ? cdev_get+0x2c/0x50
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328159]  dvb_device_open+0x94/0xe0 [dvb_core]
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328168]  chrdev_open+0xbf/0x1b0
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328176]  do_dentry_open+0x208/0x310
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328182]  ? cdev_put+0x30/0x30
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328188]  vfs_open+0x4c/0x70
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328194]  ? may_open+0x9b/0x100
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328200]  path_openat+0x2ac/0x1430
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328209]  ? __wake_up_sync_key+0x50/0x60
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328216]  do_filp_open+0x91/0x100
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328225]  ? __alloc_fd+0x46/0x170
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328231]  do_sys_open+0x12d/0x280
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328238]  SyS_open+0x1e/0x20
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328247]  entry_SYSCALL_64_fastpath+0x1e/0xad
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328251] RIP: 0033:0x7f33e21dec7d
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328254] RSP: 002b:00007fff1be5ab10 EFLAGS: 00000293 ORIG_RAX: 0000000000000002
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328260] RAX: ffffffffffffffda RBX: 00000000028bf2d0 RCX: 00007f33e21dec7d
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328263] RDX: 0000000000000018 RSI: 0000000000000802 RDI: 00000000028be918
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328267] RBP: 00007fff1be5aa40 R08: 00000000028be928 R09: 0000000000000010
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328271] R10: 0000000000000003 R11: 0000000000000293 R12: 0000000001347da0
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328275] R13: 0000000000000001 R14: 00007fff1be5afc0 R15: 0000000002826380
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328279] Code: 48 89 75 c0 49 8b 9d 90 00 00 00 4c 8b b3 48 03 00 00 4c 8b a3 30 03 00 00 66 66 66 66 90 83 bb 34 05 00 00 02 0f 8$
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328348] RIP: dvb_frontend_open+0x4c/0x520 [dvb_core] RSP: ffffb545427bbb98
Jul 26 13:32:54 MYTHTV kernel: [ 1202.328351] CR2: 0000000000000050


I haven't seen an update to the git hub in a while, so wondered if anyone could help or was suffering the same issue?
maff
 
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Joined: Fri Jun 02, 2017 5:25 pm

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