Re: 2.4.0-test3 oops

From: Marc Zyngier (mzyngier@freesurf.fr)
Date: Thu Jul 13 2000 - 07:05:47 EDT

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    >>>>> "JL" == Julio Lopez <julio.lopez@mailcity.com> writes:

    JL> I have been experiencing the following crashes quite often. In fact,
    JL> the machine doesn't last up more than 5 minutes.

    JL> The machines are an old Pentiums 90 MHz. (HP Vectra-XU) with onboard
    JL> SCSI controller (AM53/79C974) and network card (driver=PCnet/PCI
    JL> 79C970). They have 32MB and 48MB respectively.

    There's a known problem with these system :

    JL> BIOS-provided physical RAM map:
    JL> e820: 000000000009f800 @ 0000000000000000 (usable)
    JL> e820: 0000000000000800 @ 000000000009f800 (reserved)
    JL> e820: 0000000000010000 @ 00000000000e0000 (usable) <---- BUG
    JL> e820: 0000000000010000 @ 00000000000f0000 (reserved)
    JL> e820: 0000000001f00000 @ 0000000000100000 (usable)
    JL> e820: 0000000000001000 @ 00000000fec00000 (reserved)
    JL> e820: 0000000000001000 @ 00000000fee00000 (reserved)
    JL> e820: 0000000000010000 @ 00000000ffff0000 (reserved)

    The little 64KB area marked as usable should be reserved (this is a
    e820 bios bug). Passing mem=... argument to the kernel will fix this.

            M. 

    -- 
Places change, faces change. Life is so very strange.

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