[linux-dvb] Help - Mythbackend crashes every day - Nova-T-500

[ThomP Pontoppidan]

Hi,

I finally thought I had my Nova-T-500 working properly, but now I get
something like this every day when I come home from work:

Message from syslogd at localhost at Wed Oct 11 12:22:44 2006 ...
localhost kernel: Oops: 0000 [#1]

Message from syslogd at localhost at Wed Oct 11 12:22:45 2006 ...
localhost kernel: CPU:    0

Message from syslogd at localhost at Wed Oct 11 12:22:45 2006 ...
localhost kernel: EIP is at dvb_dmxdev_buffer_read+0x11/0x14d [dvb_core]

Message from syslogd at localhost at Wed Oct 11 12:22:45 2006 ...
localhost kernel: eax: 312d375c   ebx: 312d375c   ecx: b13e6008   edx: 00000800

Message from syslogd at localhost at Wed Oct 11 12:22:45 2006 ...
localhost kernel: esi: b13e6008   edi: 00000000   ebp: b13e6008   esp: c4571f44

Message from syslogd at localhost at Wed Oct 11 12:22:45 2006 ...
localhost kernel: ds: 007b   es: 007b   ss: 0068

Message from syslogd at localhost at Wed Oct 11 12:22:46 2006 ...
localhost kernel: Process mythbackend (pid: 8453, threadinfo=c4571000
task=d220caa0)

Message from syslogd at localhost at Wed Oct 11 12:22:46 2006 ...
localhost kernel: Stack: 00000001 00000800 c4571f68 c4571e50 c4571e54
00000246 00000008 c4571fa4

Message from syslogd at localhost at Wed Oct 11 12:22:46 2006 ...
localhost kernel:        b13e6008 b13e6008 002b07a0 d59e4d02 002b07a0
c4571fa4 c4a5b9a0 d59e4cd4

Message from syslogd at localhost at Wed Oct 11 12:22:46 2006 ...
localhost kernel:        c045c67d c4571fa4 c4a5b9a0 fffffff7 00000000
c4571000 c045c9fc c4571fa4

Message from syslogd at localhost at Wed Oct 11 12:22:46 2006 ...
localhost kernel: Call Trace:

Message from syslogd at localhost at Wed Oct 11 12:22:46 2006 ...
localhost kernel:  <d59e4d02> dvb_dvr_read+0x2e/0x33 [dvb_core]
<d59e4cd4> dvb_dvr_read+0x0/0x33 [dvb_core]

Message from syslogd at localhost at Wed Oct 11 12:22:47 2006 ...
localhost kernel:  <c045c67d> vfs_read+0xa6/0x14e  <c045c9fc> sys_read+0x41/0x67

Message from syslogd at localhost at Wed Oct 11 12:22:47 2006 ...
localhost kernel:  <c0402cb3> syscall_call+0x7/0xb

Message from syslogd at localhost at Wed Oct 11 12:22:47 2006 ...
localhost kernel: Code: 7d 00 00 f7 d3 83 e3 4b 89 da 83 ca 43 85 c0
0f 44 da 59 89 d8 5b 5b 5e 5f c3 55 89 cd 57 31 ff 56 53 89 c3 83 ec
1c 89 54 24 04 <83> 38 00 0f 84 29 01 00 00 8b 40 10 8b 74 24 30 85 c0
0f 84 f2

Message from syslogd at localhost at Wed Oct 11 12:22:47 2006 ...
localhost kernel: EIP: [<d59e4b98>] dvb_dmxdev_buffer_read+0x11/0x14d
[dvb_core] SS:ESP 0068:c4571f44

Message from syslogd at localhost at Wed Oct 11 12:22:47 2006 ...
localhost kernel: Oops: 0000 [#2]

Message from syslogd at localhost at Wed Oct 11 12:22:47 2006 ...
localhost kernel: CPU:    0

Message from syslogd at localhost at Wed Oct 11 12:22:47 2006 ...
localhost kernel: EIP is at dvb_dmxdev_buffer_read+0x11/0x14d [dvb_core]

Message from syslogd at localhost at Wed Oct 11 12:22:48 2006 ...
localhost kernel: eax: 00028321   ebx: 00028321   ecx: b1697008   edx: 00000800

Message from syslogd at localhost at Wed Oct 11 12:22:48 2006 ...
localhost kernel: esi: b1697008   edi: 00000000   ebp: b1697008   esp: c1e86f44

Message from syslogd at localhost at Wed Oct 11 12:22:48 2006 ...
localhost kernel: ds: 007b   es: 007b   ss: 0068

Message from syslogd at localhost at Wed Oct 11 12:22:48 2006 ...
localhost kernel: Process mythbackend (pid: 8476, threadinfo=c1e86000
task=c846d000)

Message from syslogd at localhost at Wed Oct 11 12:22:48 2006 ...
localhost kernel: Stack: 00000001 00000800 c1e86f68 c1e86e50 c1e86e54
00000246 00000008 c1e86fa4

Message from syslogd at localhost at Wed Oct 11 12:22:48 2006 ...
localhost kernel:        b1697008 b1697008 002b07a0 d59e4d02 002b07a0
c1e86fa4 d04422c0 d59e4cd4

Message from syslogd at localhost at Wed Oct 11 12:22:48 2006 ...
localhost kernel:        c045c67d c1e86fa4 d04422c0 fffffff7 00000000
c1e86000 c045c9fc c1e86fa4

Message from syslogd at localhost at Wed Oct 11 12:22:48 2006 ...
localhost kernel: Call Trace:

Message from syslogd at localhost at Wed Oct 11 12:22:49 2006 ...
localhost kernel:  <d59e4d02> dvb_dvr_read+0x2e/0x33 [dvb_core]
<d59e4cd4> dvb_dvr_read+0x0/0x33 [dvb_core]

Message from syslogd at localhost at Wed Oct 11 12:22:49 2006 ...
localhost kernel:  <c045c67d> vfs_read+0xa6/0x14e  <c045c9fc> sys_read+0x41/0x67

Message from syslogd at localhost at Wed Oct 11 12:22:49 2006 ...
localhost kernel:  <c0402cb3> syscall_call+0x7/0xb

Message from syslogd at localhost at Wed Oct 11 12:22:49 2006 ...
localhost kernel: Code: 7d 00 00 f7 d3 83 e3 4b 89 da 83 ca 43 85 c0
0f 44 da 59 89 d8 5b 5b 5e 5f c3 55 89 cd 57 31 ff 56 53 89 c3 83 ec
1c 89 54 24 04 <83> 38 00 0f 84 29 01 00 00 8b 40 10 8b 74 24 30 85 c0
0f 84 f2

Message from syslogd at localhost at Wed Oct 11 12:22:49 2006 ...
localhost kernel: EIP: [<d59e4b98>] dvb_dmxdev_buffer_read+0x11/0x14d
[dvb_core] SS:ESP 0068:c1e86f44

Message from syslogd at localhost at Wed Oct 11 12:23:07 2006 ...
localhost kernel: Oops: 0002 [#3]

Message from syslogd at localhost at Wed Oct 11 12:23:07 2006 ...
localhost kernel: CPU:    0

Message from syslogd at localhost at Wed Oct 11 12:23:08 2006 ...
localhost kernel: EIP is at dvb_frontend_release+0x42/0x67 [dvb_core]

Message from syslogd at localhost at Wed Oct 11 12:23:08 2006 ...
localhost kernel: eax: 00db447c   ebx: d2200031   ecx: d59e996c   edx: d0442d60

Message from syslogd at localhost at Wed Oct 11 12:23:08 2006 ...
localhost kernel: esi: d0442d60   edi: ffffffff   ebp: d223a98c   esp: cae9cf6c

Message from syslogd at localhost at Wed Oct 11 12:23:08 2006 ...
localhost kernel: ds: 007b   es: 007b   ss: 0068

Message from syslogd at localhost at Wed Oct 11 12:23:08 2006 ...
localhost kernel: Process mythbackend (pid: 3146, threadinfo=cae9c000
task=cb61f000)

Message from syslogd at localhost at Wed Oct 11 12:23:08 2006 ...
localhost kernel: Stack: 00000000 d223ab14 00000008 d223a98c d223a98c
d0442d60 c045cdfe 00000000

Message from syslogd at localhost at Wed Oct 11 12:23:08 2006 ...
localhost kernel:        d2123e84 d3fe3ca0 d0442d60 00000000 d17e9d80
cae9c000 c045a730 00000014

Message from syslogd at localhost at Wed Oct 11 12:23:08 2006 ...
localhost kernel:        00000014 094eeb98 094ecee8 c0402cb3 00000014
00000000 0308378c 094eeb98

Message from syslogd at localhost at Wed Oct 11 12:23:08 2006 ...
localhost kernel: Call Trace:

Message from syslogd at localhost at Wed Oct 11 12:23:08 2006 ...
localhost kernel:  <c045cdfe> __fput+0xb2/0x158  <c045a730> filp_close+0x52/0x59

Message from syslogd at localhost at Wed Oct 11 12:23:09 2006 ...
localhost kernel:  <c0402cb3> syscall_call+0x7/0xb

Message from syslogd at localhost at Wed Oct 11 12:23:09 2006 ...
localhost kernel: Code: 00 8b 58 28 8b bb d8 01 00 00 74 14 c7 44 24
04 4c d4 9e d5 c7 04 24 4c e9 9e d5 e8 24 30 a3 ea f6 46 18 03 74 0b
a1 58 e3 6b c0 <89> 87 f0 01 00 00 8b 8b 08 01 00 00 85 c9 74 06 31 d2
89 d8 ff

Message from syslogd at localhost at Wed Oct 11 12:23:09 2006 ...
localhost kernel: EIP: [<d59e99ae>] dvb_frontend_release+0x42/0x67
[dvb_core] SS:ESP 0068:cae9cf6c

What does it mean? When it happens, mythfrontend loses connection to
the backend, but I assume that it's the DVB-drivers that cause the
problem?

I added a HVR-1300 to the setup recently, but I only load the drivers
that load automatically at startup so the card is not available in
MythTV.

Regards,
ThomP