On Mon, November 19, 2007 3:57 pm, James G. Sack (jim) wrote:
Lan Barnes wrote:
A while back Gus posted a quick tutorial on how I could check and set
DMA
in the CLI and I dutifully saved it god knows where.
Since I can't find it, could someone kindly point me to one or more DMA
URLs or manpages?
TIA,
google on
site:kernel-panic.org hdparm dma
or, say
site:kernel-panic.org dma gus
gives (for one)
http://www.kernel-panic.org/pipermail/kplug-list/2005-October/080686.html
OK. Using that post (thanks Jim/Gus), and spilling /var/log/messages, I get:
[EMAIL PROTECTED] log]# grep -i dma messages
Nov 18 11:55:54 xena kernel: ivtv0 warning: ENC DMA ERROR b
Nov 18 13:00:59 xena kernel: ivtv0 warning: ENC DMA ERROR b
Nov 18 13:04:43 xena kernel: ivtv0 warning: ENC DMA ERROR b
Nov 18 16:54:38 xena kernel: hda: dma_intr: status=0x51 { DriveReady
SeekComplete Error }
Nov 18 16:54:38 xena kernel: hda: dma_intr: error=0x40 {
UncorrectableError }, LBAsect=131932869, sector=131932807
Nov 18 16:54:43 xena kernel: hda: dma_intr: status=0x51 { DriveReady
SeekComplete Error }
Nov 18 16:54:43 xena kernel: hda: dma_intr: error=0x40 {
UncorrectableError }, LBAsect=131932869, sector=131932815
Nov 18 16:54:49 xena kernel: hda: dma_intr: status=0x51 { DriveReady
SeekComplete Error }
Nov 18 16:54:49 xena kernel: hda: dma_intr: error=0x40 {
UncorrectableError }, LBAsect=131932869, sector=131932823
Nov 18 16:54:54 xena kernel: hda: dma_intr: status=0x51 { DriveReady
SeekComplete Error }
Nov 18 16:55:23 xena kernel: hda: dma_intr: error=0x40 {
UncorrectableError }, LBAsect=131932869, sector=131932831
Nov 18 16:55:23 xena kernel: hda: dma_intr: status=0x51 { DriveReady
SeekComplete Error }
Nov 18 16:55:23 xena kernel: hda: dma_intr: error=0x40 {
UncorrectableError }, LBAsect=131932869, sector=131932839
Nov 18 16:55:23 xena kernel: hda: dma_intr: status=0x51 { DriveReady
SeekComplete Error }
Nov 18 16:55:23 xena kernel: hda: dma_intr: error=0x40 {
UncorrectableError }, LBAsect=131932869, sector=131932847
Nov 18 16:55:23 xena kernel: hda: dma_intr: status=0x51 { DriveReady
SeekComplete Error }
Nov 18 16:55:23 xena kernel: hda: dma_intr: error=0x40 {
UncorrectableError }, LBAsect=131932869, sector=131932855
Nov 18 16:55:23 xena kernel: hda: dma_intr: status=0x51 { DriveReady
SeekComplete Error }
Nov 18 16:55:23 xena kernel: hda: dma_intr: error=0x40 {
UncorrectableError }, LBAsect=131932869, sector=131932863
Nov 18 16:55:23 xena kernel: hda: dma_intr: status=0x51 { DriveReady
SeekComplete Error }
Nov 18 16:55:23 xena kernel: hda: dma_intr: error=0x40 {
UncorrectableError }, LBAsect=131932869, sector=131932863
Nov 18 16:57:55 xena kernel: DMA 0 -> 4096
Nov 18 16:57:56 xena kernel: VP_IDE: VIA vt8235 (rev 00) IDE UDMA133
controller on pci0000:00:11.1
Nov 18 16:57:56 xena kernel: ide0: BM-DMA at 0xfc00-0xfc07, BIOS
settings: hda:DMA, hdb:DMA
Nov 18 16:57:56 xena kernel: ide1: BM-DMA at 0xfc08-0xfc0f, BIOS
settings: hdc:DMA, hdd:DMA
Nov 18 16:57:56 xena kernel: hda: 156301488 sectors (80026 MB) w/2048KiB
Cache, CHS=65535/16/63, UDMA(33)
Nov 18 16:57:56 xena kernel: hdb: 488397168 sectors (250059 MB) w/8192KiB
Cache, CHS=30401/255/63, UDMA(33)
Nov 18 16:57:56 xena kernel: , UDMA(100)
Nov 18 16:57:57 xena kernel: , UDMA(66)
Nov 18 19:08:06 xena kernel: ivtv0 warning: ENC DMA ERROR b
[EMAIL PROTECTED] log]# hdparm -i /dev/hda
/dev/hda:
Model=ST380020ACE, FwRev=3.39, SerialNo=5GC113ZQ
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=unknown, BuffSize=2048kB, MaxMultSect=16, MultSect=16
CurCHS=4047/16/255, CurSects=16511760, LBA=yes, LBAsects=156301488
IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 *udma2 udma3 udma4 udma5
AdvancedPM=yes: unknown setting WriteCache=enabled
Drive conforms to: ATA-1 X3T9.2 781D prior to revision 4: ATA/ATAPI-1
ATA/ATAPI-2 ATA/ATAPI-3 ATA/ATAPI-4 ATA/ATAPI-5 ATA/ATAPI-6
* signifies the current active mode
So I'm reading this to say, yesterday I had serious DMA issues, but today
I don't. And in that time, IIRC, I rebooted for unrelated reasons, because
I was unaware of any problems yesterday (the Chargers looked awful, but I
figured that was them). *maybe* a little grainy when watching TV through
myth, but recorded playback (already in mpeg format) was OK.
The hdparam from today seems to me to say that I have *udma2 running, so
I'm cool, right? Except figuring out what went squirrelly yesterday might
be nice.
Of course, I am a blind man in a shadowy cave surrounded by the all-seeing
in this stuff, so if anyone wants to set me straight, I'm cool with that.
And a personal note to Gus, I know you think VIA MBs suck dead bunnies,
and I'm happy to yield the point, but what's it gonna be this year, a new,
good MB or a couple of Christmas presents for the Kids? After all,
remember my myth mantra: It's Only TV. And that it seems to work most of
the time.
