When I look in /proc/interupt I see that my Nvida FX5200 card has been assigned to IRQ 11. When I look in /proc/pci I see that both the FX5200 card and the IDE controller have been assigned to IRQ 11. Will this sharing of the IRQ cause any stability or performance problems? Also, is there a reason that the use if IRQ 11 for the IDE controller only shows up in /proc/pci, and not in /proc/interupts?
I cannot seem to find any way to get them on separate IRQs. When i disabled IRQ 11 in the bios, they both moved to IRQ10. Thanks for any insights you can provide.
Marc
Code:
root@mythhd:/proc# cat interrupts
CPU0 CPU1
0: 32062 0 XT-PIC timer
1: 10 0 XT-PIC i8042
2: 0 0 XT-PIC cascade
5: 0 0 XT-PIC ivtv0
7: 90 0 XT-PIC ohci1394
8: 1 0 XT-PIC rtc
10: 627 0 XT-PIC eth0, EMU10K1
11: 4712 0 XT-PIC nvidia
12: 102 0 XT-PIC i8042
14: 9028 0 XT-PIC ide0
15: 133 0 XT-PIC ide1
NMI: 0 0
LOC: 32009 32008
ERR: 0
MIS: 0
Code:
root@mythhd:/proc# cat pci
PCI devices found:
Bus 0, device 0, function 0:
Host bridge: Silicon Integrated Systems [SiS] SiS 645xx (rev 81).
Master Capable. Latency=32.
Non-prefetchable 32 bit memory at 0xd8000000 [0xdbffffff].
Bus 0, device 1, function 0:
PCI bridge: PCI device 1039:0003 (Silicon Integrated Systems [SiS]) (rev 0).
Master Capable. Latency=64. Min Gnt=14.
Bus 0, device 2, function 0:
ISA bridge: Silicon Integrated Systems [SiS] SiS85C503/5513 (LPC Bridge) (rev 37).
Bus 0, device 2, function 1:
SMBus: Silicon Integrated Systems [SiS] SiS961/2 SMBus Controller (rev 0).
I/O at 0x10c0 [0x10df].
Bus 0, device 2, function 5:
IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev 0).
IRQ 11.
Master Capable. Latency=128.
I/O at 0x4000 [0x400f].
Bus 0, device 4, function 0:
Ethernet controller: Silicon Integrated Systems [SiS] SiS900 PCI Fast Ethernet (rev 145).
IRQ 10.
Master Capable. Latency=32. Min Gnt=52.Max Lat=11.
I/O at 0xe400 [0xe4ff].
Non-prefetchable 32 bit memory at 0xe2024000 [0xe2024fff].
Bus 0, device 10, function 0:
FireWire (IEEE 1394): Texas Instruments TSB12LV23 IEEE-1394 Controller (rev 0).
IRQ 7.
Master Capable. Latency=64. Min Gnt=3.Max Lat=4.
Non-prefetchable 32 bit memory at 0xe2026000 [0xe20267ff].
Non-prefetchable 32 bit memory at 0xe2020000 [0xe2023fff].
Bus 0, device 11, function 0:
Multimedia video controller: Internext Compression Inc iTVC16 (CX23416) MPEG-2 Encoder (rev 1).
IRQ 5.
Master Capable. Latency=64. Min Gnt=128.Max Lat=8.
Prefetchable 32 bit memory at 0xdc000000 [0xdfffffff].
Bus 0, device 13, function 0:
Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 7).
IRQ 10.
Master Capable. Latency=32. Min Gnt=2.Max Lat=20.
I/O at 0xe800 [0xe81f].
Bus 0, device 13, function 1:
Input device controller: Creative Labs SB Live! MIDI/Game Port (rev 7).
Master Capable. Latency=32.
I/O at 0xec00 [0xec07].
Bus 1, device 0, function 0:
VGA compatible controller: nVidia Corporation NV34 [GeForce FX 5200] (rev 161).
IRQ 11.
Master Capable. Latency=248. Min Gnt=5.Max Lat=1.
Non-prefetchable 32 bit memory at 0xe0000000 [0xe0ffffff].
Prefetchable 32 bit memory at 0xd0000000 [0xd7ffffff].