Re: DMA is turned off on my HDD
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On 07/29/08 09:36, Anton Liaukevich wrote:
> Anton Liaukevich wrote:
[snip]
>>
>> anthony@leva:~$ cat /proc/interrupts
>> CPU0
>> 0: 66 IO-APIC-edge timer
>> 1: 2570 IO-APIC-edge i8042
>> 3: 2 IO-APIC-edge
>> 4: 2 IO-APIC-edge
>> 6: 5 IO-APIC-edge floppy
>> 7: 0 IO-APIC-edge parport0
>> 8: 2 IO-APIC-edge rtc0
>> 9: 0 IO-APIC-fasteoi acpi
>> 10: 0 IO-APIC-edge MPU401 UART
>> 12: 100951 IO-APIC-edge i8042
>> 14: 604231 IO-APIC-edge ide0
>> 15: 20161 IO-APIC-edge ide1
>> 17: 742 IO-APIC-fasteoi eth1
>> 20: 0 IO-APIC-fasteoi ohci_hcd:usb2
>> 21: 4317 IO-APIC-fasteoi ehci_hcd:usb1, NVidia nForce2
>> 22: 0 IO-APIC-fasteoi ohci_hcd:usb3
>> NMI: 0 Non-maskable interrupts
>> LOC: 117665 Local timer interrupts
>> RES: 0 Rescheduling interrupts
>> CAL: 0 function call interrupts
>> TLB: 0 TLB shootdowns
>> TRM: 0 Thermal event interrupts
>> SPU: 0 Spurious interrupts
>> ERR: 0
>> MIS: 0
>>
>> I'm novice in Linux and I don't know how to see which module
>> has IRQs 14 and 15. Commands "lsmod | grep '604231|20161'" & "ps -A |
>> grep '604231|20161'" output nothing. Moreover I have noticed that
>> numbers in the second column of 'cat /proc/interrupts' output
>> sometimes changes (I have been running it several times).
>> Unfortunately, I haven't found in man any documentation about
>> '/proc/interrupts' file format.
>>
> After a little googling I have understand that numbers in the second
> column are simply count of interrupt attached to given IRQs but I want
> to know how to see which module has given IRQ.
ISTM that the last column shows you which driver holds each
interrupt. For example:
1 i8042
6 floppy
7 parport
8 rtc
9 io_apic
10 snd-mpu401-uart
- --
Ron Johnson, Jr.
Jefferson LA USA
"Kittens give Morbo gas. In lighter news, the city of New New
York is doomed."
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