IGP X1250, mythtv and IDE DMA problems

[xpgdk]

Hi,

I am having problems with the combination of an ASUS M2A-VM with IGP X1250-based graphics card, mythtv and on-board PATA DMA. I have TextureMapped XVideo support enabled, and when I start MythTV the IDE subsystem spits out errors:

[ 90.004956] hda: dma_intr: bad DMA status (dma_stat=76)
[ 90.004963] hda: dma_intr: status=0x50 { DriveReady SeekComplete }
[ 90.004966] ide: failed opcode was: unknown

After a while it finally gives up, and disabled DMA:

[ 97.732622] hda: DMA disabled
[ 97.732629] hdb: DMA disabled
[ 97.809464] ide0: reset: success

I am aware of the fact, that MythTV is listed as an unsupported application on the ATI driver page, but I am curious if anyone else has experienced this and if there is a way to solve it. I am somewhat puzzled about what is causing this problem. Resource conflicts somehow?

Regards,

Paul

[Kano]

show me:

lsmod|grep -e ide_ -e pata

[xpgdk]

show me:

lsmod|grep -e ide_ -e pata

Quick reply. Here it is:

ide_cd 32672 1
cdrom 37536 1 ide_cd
ide_disk 18560 3
ide_core 116804 3 ide_cd,ide_disk,atiixp

And I forgot to mention that I am running kernel 2.6.22 (-14 ubuntu Gutsy). Have also tried 2.6.24-9 development kernel from Ubuntu Hardy, both with the old IDE and new libata drivers. Problem still persists.

Cheers,

Paul

[Kano]

This is an old kernel, show me output of 2.6.24 kernel.

[xpgdk]

This is an old kernel, show me output of 2.6.24 kernel.

This is using libata:

$ lsmod|grep -e ide_ -e pata
pata_acpi 8320 0
pata_atiixp 8960 3
libata 160112 4 pata_acpi,pata_atiixp,ata_generic,ahci


dmesg output is:
[ 54.561965] ata5.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[ 54.561970] ata5.00: BMDMA stat 0x6
[ 54.561975] ata5.00: cmd ca/00:58:cf:65:00/00:00:00:00:00/e0 tag 0 dma 45056 out
[ 54.561977] res 50/00:00:26:66:00/00:00:00:00:00/e0 Emask 0x20 (host bus error)
[ 54.561979] ata5.00: status: { DRDY }
[ 54.577506] hda-intel: Invalid position buffer, using LPIB read method instead.
[ 54.613764] ata5.00: configured for UDMA/100
[ 54.691814] ata5.01: configured for MWDMA2
[ 54.691827] ata5: EH complete
[ 54.706577] sd 4:0:0:0: [sda] 160086528 512-byte hardware sectors (81964 MB)
[ 54.706620] sd 4:0:0:0: [sda] Write Protect is off
[ 54.706623] sd 4:0:0:0: [sda] Mode Sense: 00 3a 00 00
[ 54.706646] sd 4:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 55.556925] ata5.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[ 55.556930] ata5.00: BMDMA stat 0x6
[ 55.556936] ata5.00: cmd ca/00:40:a7:0e:51/00:00:00:00:00/e8 tag 0 dma 32768 out
[ 55.556938] res 50/00:00:e6:0e:51/00:00:00:00:00/e8 Emask 0x20 (host bus error)
[ 55.556940] ata5.00: status: { DRDY }
[ 55.667870] ata5.00: configured for UDMA/100
[ 55.830498] ata5.01: configured for MWDMA2
[ 55.830513] ata5: EH complete

Unlike the old IDE system it doesn't look like libata is giving completely up on DMA transfers.

/Paul

[Kano]

Should be fast enough, when you test

hdparm -tT /dev/sda

[xpgdk]

Should be fast enough, when you test

hdparm -tT /dev/sda

You're right:

$ hdparm -tT /dev/sda

/dev/sda:
Timing cached reads: 1748 MB in 2.00 seconds = 874.63 MB/sec
Timing buffered disk reads: 142 MB in 3.06 seconds = 46.37 MB/sec

I apologise, I thought that all those warnings meant the same as with the old IDE system. Thanks for opening my eyes.

Although I am still wondering what is causing that noise.

/Paul

[Kano]

Just always use the new kernel.

[xpgdk]

Just always use the new kernel.

Will do :-).
Thanks

/Paul

[xpgdk]

Hmm... Things kinda work right now. Once in a while Mythtv fails to work, and I get the following in my xorg.log:

glesx exec program failed

A huge number of times. A reboot usually solves the problem. Any ideas?

/Paul