[mythtv-users] ivtv0 warning: ENC Stream 0 OVERFLOW

[Allan McIntosh]

>Im running on 2 Gigs of dual channel memory so don't think that's the
>problem ;) will watch the list for a good time to recompile from svn :-)
>
>  
>

I also have a considerable amount of ram and disk space on my myth only 
system and see similar similar behaviour.


My mythbackend system became completely unresponsive last night
45 minutes into a scheduled record. 

Here are corresponding mythbackend and syslog entries.

I saw the following mythbackend.log:
2005-12-16 00:00:01.564 External Tuning program exited with no error
2005-12-16 00:00:01.891 Changing from None to RecordingOnly
2005-12-16 00:00:13.287 Starting Commercial Flagging for "NYPD Blue" 
recorded from channel 1620 at Fri Dec 16 00:0
0:00 2005.
2005-12-16 00:00:13.296 commflag: Commercial Flagging Starting
2005-12-16 00:00:16.462 New DB connection, total: 1
2005-12-16 00:00:16.577 New DB connection, total: 2
2005-12-16 00:00:16.659 Connecting to backend server: 10.0.0.11:6543 
(try 1 of 5)
2005-12-16 00:00:16.679 Using protocol version 15
2005-12-16 00:00:16.699 MainServer::HandleAnnounce Playback
2005-12-16 00:00:16.704 adding: nelson as a client (events: 0)
2005-12-16 00:11:12.272 MainServer::HandleAnnounce Playback
2005-12-16 00:11:12.278 adding: nelson as a client (events: 1)
2005-12-16 00:48:38.264 IOBOUND - blocking in ThreadedFileWriter::Write()
[mpeg2video @ 0x5d25134]ac-tex damaged at 17 16
[mpeg2video @ 0x5d25134]Warning MVs not available


Then at the same time I saw this in  syslog:


Dec 16 00:48:36 nelson kernel: ------------[ cut here ]------------

Dec 16 00:48:36 nelson kernel: kernel BUG at lib/radix-tree.c:276!
Dec 16 00:48:36 nelson kernel: invalid operand: 0000 [#2]
Dec 16 00:48:36 nelson kernel: Modules linked in: parport_pc lp parport
rfcomm l2cap bluetooth nvidia(U) cx8800 cx
88xx ir_common v4l1_compat bttv video_buf v4l2_common btcx_risc
lirc_i2c(U) lirc_dev(U) nfsd exportfs ipv6 autofs4
nfs lockd nfs_acl sunrpc dm_mod video button battery ac ohci_hcd
ehci_hcd tda9887 msp3400(U) saa7115(U) tuner tve
eprom ivtv(U) i2c_algo_bit videodev i2c_nforce2 i2c_core shpchp
snd_intel8x0(U) snd_ac97_codec(U) snd_ac97_bus(U)
snd_seq_dummy(U) snd_seq_oss(U) snd_seq_midi_event(U) snd_seq(U)
snd_seq_device(U) snd_pcm_oss(U) snd_mixer_oss(U)
snd_pcm(U) snd_timer(U) snd(U) soundcore snd_page_alloc(U) forcedeth
floppy ext3 jbd sata_nv libata sd_mod scsi_m
od
Dec 16 00:48:36 nelson kernel: CPU:    0
Dec 16 00:48:36 nelson kernel: EIP:    0060:[<c01cf0ad>]    Tainted:
PF     VLI
Dec 16 00:48:36 nelson kernel: EFLAGS: 00010086   (2.6.14-1.1637_FC4)
Dec 16 00:48:36 nelson kernel: EIP is at radix_tree_insert+0xd6/0x139
Dec 16 00:48:36 nelson kernel: eax: ffffffff   ebx: ede674e4   ecx:
00000000   edx: 00000000
Dec 16 00:48:36 nelson kernel: esi: 00000004   edi: 00000004   ebp:
0000000d   esp: d1fd5d68
Dec 16 00:48:36 nelson kernel: ds: 007b   es: 007b   ss: 0068
Dec 16 00:48:36 nelson kernel: Process mythbackend (pid: 13182,
threadinfo=d1fd5000 task=c1a34570)
Dec 16 00:48:36 nelson kernel: Stack: badc0ded c12b3760 0009184d
e14d26c4 ede674e4 00000000 c12b3760 e14d26c0
Dec 16 00:48:36 nelson kernel:        e14d26d0 c013bb47 0009184d
00000000 00000000 0009184d e14d26c0 c013d813
Dec 16 00:48:36 nelson kernel:        000000d0 00000001 d1fd5efc
00000001 00001000 d535b540 f88d3fe0 e14d25f0
Dec 16 00:48:36 nelson kernel: Call Trace:
Dec 16 00:48:36 nelson kernel:  [<c013bb47>] add_to_page_cache+0x41/0x83
Dec 16 00:48:36 nelson kernel:  [<c013d813>]
generic_file_buffered_write+0x121/0x616
Dec 16 00:48:36 nelson kernel:  [<c013df75>]
__generic_file_aio_write_nolock+0x26d/0x476
Dec 16 00:48:36 nelson kernel:  [<c013e3cc>]
generic_file_aio_write+0x76/0xe3
Dec 16 00:48:36 nelson kernel:  [<f88b71b1>] ext3_file_write+0x24/0x96
[ext3]
Dec 16 00:48:36 nelson kernel:  [<c0158d39>] do_sync_write+0xbf/0x11a
Dec 16 00:48:36 nelson kernel:  [<c030cb5e>] _read_unlock_irq+0x5/0x7
Dec 16 00:48:36 nelson kernel:  [<c013bf85>] find_get_pages_tag+0x47/0x91
Dec 16 00:48:36 nelson kernel:  [<c012db56>]
autoremove_wake_function+0x0/0x37
Dec 16 00:48:36 nelson kernel:  [<c0158c7a>] do_sync_write+0x0/0x11a
Dec 16 00:48:36 nelson kernel:  [<c0158e36>] vfs_write+0xa2/0x15a
Dec 16 00:48:36 nelson kernel:  [<c0158f99>] sys_write+0x41/0x6a
Dec 16 00:48:36 nelson kernel:  [<c0102edd>] syscall_call+0x7/0xb
Dec 16 00:48:36 nelson kernel: Code: 84 85 db 74 30 83 03 01 8b 04 24 89
44 ab 04 0f a3 ab 04 01 00 00 19 c0 85 c0
75 68 0f a3 ab 0c 01 00 00 19 c0 31 c9 85 c0 74 b1 <0f> 0b 14 01 80 cf
32 c0 eb a7 8b 0c 24 8b 54 24 08 89 4a 08
31

Dec 16 00:48:48 nelson kernel:  <6>ivtv0 warning: ENC Stream 0 OVERFLOW
#0: Stealing a Buffer, 512 currently alloc
ated
:

<snip>