I have a problem using the DVD drive under kernel 2.6 in all the
versions I tested(up to 2.6.8.1). Since I do not use the dvd that often
it has not been a big problem but now I stating to get tired of it.
First is there any valid way for the interrupt rate to drop below 1000 ?
This is a sample from vmstat during a copy from the dvd drive.
----
r b swpd free buff cache si so bi bo in cs us sy id wa
2 3 0 3812 21876 591388 0 0 2340 15260 455 230 25 75 0 0
2 3 0 4700 21844 590828 0 0 1288 0 422 133 17 83 0 0
2 4 0 4024 21828 592028 0 0 1288 136 233 121 11 89 0 0
2 1 0 3856 21852 592272 0 0 2712 116 412 232 21 71 0 7
2 2 0 3820 21876 592236 0 0 2736 0 330 214 17 83 0 0
3 3 0 3840 20376 592924 0 0 2468 0 495 332 53 47 0 0
3 3 0 4092 20396 592092 0 0 2612 0 794 257 29 71 0 0
----
During use the mouse pointer sometimes get just crazy for a few seconds
it seams like X is getting fake mouse and keyboard events. resulting in
all sort of fun things ranging from the mouse pointer just moving around
to quiting some program.
The only unusual thing is that I do not have any device on hda and hdb
and a dvd writer on hdc and a dvd rom on hdd. Could this confuse the IDE
driver?
0000:00:11.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
cat /proc/interrupts
CPU0
0: 7232433 IO-APIC-edge timer
1: 11872 IO-APIC-edge i8042
8: 4 IO-APIC-edge rtc
9: 0 IO-APIC-level acpi
12: 150886 IO-APIC-edge i8042
15: 169584 IO-APIC-edge ide1
16: 7325765 IO-APIC-level eth0, nvidia
17: 205210 IO-APIC-level libata
18: 75514 IO-APIC-level EMU10K1
19: 5970 IO-APIC-level bttv0
21: 78 IO-APIC-level uhci_hcd, uhci_hcd
NMI: 0
LOC: 7242394
ERR: 0
MIS: 4