Re: hard lock using combination of devices

From: Pavel Machek (pavel_at_suse.cz)
Date: 02/17/04

  • Next message: Robin Rosenberg: "Re: UTF-8 and case-insensitivity" 
    Date:	Tue, 17 Feb 2004 23:33:20 +0100
To: Carl Thompson <cet@carlthompson.net>

    Hi!

    > >>> 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

    > 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

    Does that mean you are actually using windows driver for your wireless
    card? At that point ... no wonder it breaks ;-).
                                                                    Pavel 

    -- 
When do you have a heart between your knees?
[Johanka's followup: and *two* hearts?]
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