[mythtv-users] cx88[0]/2-mpeg: general errors: 0x00000100

matthew.garman at gmail.com matthew.garman at gmail.com
Mon Oct 1 21:52:40 UTC 2007


I was doing some more investigating of OTA HD recording woes,
detailed here:

    http://www.gossamer-threads.com/lists/mythtv/users/291878

I found the following message repeated numerous times in
/var/log/messages:

Sep 30 18:59:28 cesspool cx88[0]/2-mpeg: general errors: 0x00000100

Between 7:10 and 7:30 last night, this message is repeated nearly
8000 times (many times per second).

Ironically, this is the exact time when my recording of "The
Simpsons" was corrupted to the point of being unwatchable.

Is this something cx88 prints when the signal is too weak?  Or does
this indicate a hardware failure and/or configuration problem?

The other thing that's interesting: it appears the cx88 driver
crashed (or had some serious internal error) just prior to spewing
all those messages:

Sep 30 18:59:03 cesspool cx88[0] dvb: page allocation failure. order:0, mode:0x4
Sep 30 18:59:03 cesspool
Sep 30 18:59:03 cesspool Call Trace:
Sep 30 18:59:03 cesspool [<ffffffff8026457d>] __alloc_pages+0x30d/0x330
Sep 30 18:59:03 cesspool [<ffffffff8027645b>] __vmalloc_area_node+0xdb/0x180
Sep 30 18:59:03 cesspool [<ffffffff880d58b0>] :video_buf:videobuf_dma_init_kernel+0x50/0xd0
Sep 30 18:59:03 cesspool [<ffffffff880d5db1>] :video_buf:videobuf_iolock+0xc1/0xf0
Sep 30 18:59:03 cesspool [<ffffffff8812107e>] :cx8802:cx8802_buf_prepare+0xde/0x130
Sep 30 18:59:03 cesspool [<ffffffff880d50d7>] :video_buf:videobuf_read_start+0xc7/0x170
Sep 30 18:59:03 cesspool [<ffffffff8817c3b0>] :video_buf_dvb:videobuf_dvb_thread+0x0/0x180
Sep 30 18:59:03 cesspool [<ffffffff8817c3d7>] :video_buf_dvb:videobuf_dvb_thread+0x27/0x180
Sep 30 18:59:03 cesspool [<ffffffff8817c3b0>] :video_buf_dvb:videobuf_dvb_thread+0x0/0x180
Sep 30 18:59:03 cesspool [<ffffffff8817c3b0>] :video_buf_dvb:videobuf_dvb_thread+0x0/0x180
Sep 30 18:59:03 cesspool [<ffffffff80243beb>] kthread+0x4b/0x80
Sep 30 18:59:03 cesspool [<ffffffff8020a868>] child_rip+0xa/0x12
Sep 30 18:59:03 cesspool [<ffffffff80243ba0>] kthread+0x0/0x80
Sep 30 18:59:03 cesspool [<ffffffff8020a85e>] child_rip+0x0/0x12
Sep 30 18:59:03 cesspool
Sep 30 18:59:03 cesspool Mem-info:
Sep 30 18:59:03 cesspool DMA per-cpu:
Sep 30 18:59:03 cesspool CPU    0: Hot: hi:    0, btch:   1 usd:   0 Cold: hi:    0, btch:   1 usd:   0
Sep 30 18:59:03 cesspool CPU    1: Hot: hi:    0, btch:   1 usd:   0 Cold: hi:    0, btch:   1 usd:   0
Sep 30 18:59:03 cesspool DMA32 per-cpu:
Sep 30 18:59:03 cesspool CPU    0: Hot: hi:  186, btch:  31 usd:  30 Cold: hi:   62, btch:  15 usd:   7
Sep 30 18:59:03 cesspool CPU    1: Hot: hi:  186, btch:  31 usd:  57 Cold: hi:   62, btch:  15 usd:  48
Sep 30 18:59:03 cesspool Active:78670 inactive:4849 dirty:55 writeback:0 unstable:0
Sep 30 18:59:03 cesspool free:972 slab:15844 mapped:12063 pagetables:633 bounce:0
Sep 30 18:59:03 cesspool DMA free:1744kB min:60kB low:72kB high:88kB active:7504kB inactive:0kB present:10700kB pages_scanned:32 all_unreclaimable? no
Sep 30 18:59:03 cesspool lowmem_reserve[]: 0 426 426
Sep 30 18:59:03 cesspool DMA32 free:2144kB min:2608kB low:3260kB high:3912kB active:307176kB inactive:19396kB present:436260kB pages_scanned:96 all_unreclaimable? no
Sep 30 18:59:03 cesspool lowmem_reserve[]: 0 0 0
Sep 30 18:59:03 cesspool DMA: 0*4kB 0*8kB 1*16kB 0*32kB 1*64kB 1*128kB 0*256kB 1*512kB 1*1024kB 0*2048kB 0*4096kB = 1744kB
Sep 30 18:59:03 cesspool DMA32: 60*4kB 0*8kB 0*16kB 0*32kB 0*64kB 1*128kB 1*256kB 1*512kB 1*1024kB 0*2048kB 0*4096kB = 2160kB
Sep 30 18:59:03 cesspool Swap cache: add 54, delete 54, find 0/0, race 0+0
Sep 30 18:59:03 cesspool Free swap  = 4007992kB
Sep 30 18:59:03 cesspool Total swap = 4008208kB
Sep 30 18:59:03 cesspool Free swap:       4007992kB
Sep 30 18:59:03 cesspool 114672 pages of RAM
Sep 30 18:59:03 cesspool 8377 reserved pages
Sep 30 18:59:03 cesspool 23772 pages shared
Sep 30 18:59:03 cesspool 0 pages swap cached
Sep 30 18:59:28 cesspool cx88[0]/2-mpeg: general errors: 0x00000100
Sep 30 18:59:37 cesspool cx88[0]/2-mpeg: general errors: 0x00000100
Sep 30 18:59:38 cesspool cx88[0]/2-mpeg: general errors: 0x00000100
Sep 30 18:59:43 cesspool cx88[0]/2-mpeg: general errors: 0x00000100
Sep 30 18:59:43 cesspool cx88[0]/2-mpeg: general errors: 0x00000100


Does any of this look familiar to anyone?

Thanks!
Matt



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