[mythtv-users] Guide, and DMA problems

Ben Curtis mythtv at nosolutions.com
Sat May 29 14:46:31 EDT 2004


Man I can't get this right.  Third time I've tried to send this because my 
from address keeps messing up.  Finally got it to stick in there.

Problem 1, guide:
Can I turn off .15's OSD menu so M goes straight to the guide again?


Problem 2, DMA:
So I started getting random lockups pretty frequently a few days ago.  
Seems to happen when nothings been recorded in a while and the system
starts to record.  The error is almost always DMA related in
/var/log/messages:


May 28 11:42:56 myth kernel: hdd: timeout waiting for DMA
May 28 11:42:56 myth kernel: hdd: timeout waiting for DMA
May 28 11:42:56 myth kernel: hdd: (__ide_dma_test_irq) called while not 
waiting
May 28 11:42:56 myth kernel: hdd: status error: status=0x7f { DriveReady 
DeviceFault SeekComplete DataRequest CorrectedError
May 28 11:42:56 myth kernel: hdd: status error: error=0x7f { 
DriveStatusError UncorrectableError SectorIdNotFound TrackZeroN
May 28 11:42:56 myth kernel: hdc: DMA disabled

or

May 28 01:29:51 myth kernel: hdd: dma_timer_expiry: dma status == 0x61


That first error only shows it disabling dma on hdc, but it actually does
it on both drives.  I've read a lot on disabling apic using noapic and
nolapic at boot time, but from my cat /proc/interrupts I see it's not
using apic (XT-PIC instead of IO-APIC) (nForce2 chipset):

  0:      30907          XT-PIC  timer
  1:          6          XT-PIC  keyboard
  2:          0          XT-PIC  cascade
  4:        111          XT-PIC  serial
  5:      35391          XT-PIC  nvidia
  8:          1          XT-PIC  rtc
  9:      29648          XT-PIC  ivtv: iTVC15/16 mpg2 encoder chip
 11:       2577          XT-PIC  eth0, NVIDIA nForce Audio
 12:         58          XT-PIC  PS/2 Mouse
 14:      11432          XT-PIC  ide0
 15:       2990          XT-PIC  ide1
NMI:          0 
ERR:        123

I tried adding them anyway, and still get problems.

Also, I've noticed that the drive only uses udma2 instead of udma5 from 
doing an hdparm -I.  Should I try to enable udma5 (and how?)?  I've just 
tried lowering video res to 480x480 and dropping audio quality to try to 
lower disk access.

Any other ideas would be helpful.

Thanks!
Ben







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