Messages in this thread | | | Date | Tue, 17 Feb 2004 06:14:00 -0800 | From | Carl Thompson <> | Subject | Re: hard lock using combination of devices |
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Quoting vda <vda@port.imtp.ilyichevsk.odessa.ua>:
> On Tuesday 17 February 2004 09:14, Carl Thompson wrote: >> Quoting vda <vda@port.imtp.ilyichevsk.odessa.ua>: >> > ... >> > >> > Your box share IRQs in a big way :) >> >> Your point? > > While shared interrupts can in theory work right, > lots of hardware and/or drivers do not handle > that.
First, the two devices in question are not on the same interrupt. Second, it is very difficult in this day in age to build a system without interrupt sharing. While I agree that it's better to have as few devices sharing as possible, there are simply too many devices in modern systems and too few interrupts. Interrupt sharing needs to work on modern hardware and needs to work in Linux. This notebook is pretty typical in its interrupt distribution and I'm not certain that this is a problem. In fact, while many devices on this system use IRQ 11 the only one active at the time was the audio controller. And while IRQ 10 is shared between the CardBus adapters and the video card the problems still occur if I don't run X and video interrupts shouldn't be generated in console mode, right?
> I think you should try to reconfigure your > system so that devices do not share same IRQ > and see whether that 'fix' the problem.
There are no options in my notebook's BIOS to reconfigure interrupts or disable devices.
> BTW, can you show your /proc/interrupts ?
Attached.
> -- > vda
Carl Thompson
CPU0 0: 41027968 XT-PIC timer 1: 26061 XT-PIC i8042 2: 0 XT-PIC cascade 8: 1 XT-PIC rtc 9: 2020 XT-PIC acpi 10: 2187181 XT-PIC yenta, driverloader 11: 111 XT-PIC ALI 5451 12: 2399118 XT-PIC i8042 14: 169829 XT-PIC ide0 15: 1 XT-PIC ide1 NMI: 0 LOC: 41036749 ERR: 275764 MIS: 0
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