I think I screwed up DMA with new kernel
Greetings,
It appears that I have somehow messed up my DMA settings with my new kernel. I
have been unable to playback DVDs with the 2.4.20 kernel because of this. The
output below is from 'ogle --check' under a stock 2.4.18 kernel and my own
custom 2.4.20 kernel. I've spent several hours rereading every single help
entry available with make xconfig, as well as having searched tldp.org and
Google. I can't seem to turn up any helpful information on this.
Could someone point me in the right direction? Are there settings somewhere in
/proc for each device's dma? Why do get a message about ide-scsi under 2.4.20
and not 2.4.18 (both kernels have the ide-scsi module running)?
TIA,
-Roberto Sanchez
(with stock 2.4.18-bf2.4 kernel)
/dev/dvd -> /dev/hdc
Valid DVD devices: /dev/hdc
hdparm v5.3
WARNING: DMA is OFF for /dev/hdc
/dev/hdc:
IO_support = 0 (default 16-bit)
unmaskirq = 0 (off)
using_dma = 0 (off)
keepsettings = 0 (off)
readonly = 1 (on)
readahead = 8 (on)
(with my custom compiled 2.4.20 kernel)
/dev/dvd -> /dev/hdc
Valid DVD devices:
WARNING: No DVD devices found
/dev/hdc is running ide-scsi (TOSHIBA DVD-ROM SD-C2402)
DMA is on for /dev/hdc
hdparm v5.3
DMA is on for /dev/hdc
/dev/hdc:
IO_support = 0 (default 16-bit)
unmaskirq = 0 (off)
using_dma = 1 (on)
keepsettings = 0 (off)
readonly = 0 (off)
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