Re: Memory handling problem with FreeBSD 5.3?

From: Scott Long (scottl_at_freebsd.org)
Date: 12/30/04

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    Date: Wed, 29 Dec 2004 19:32:04 -0700
To: "Christian R." <cr@it.dk>

    Christian R. wrote:
    > I have installed FreeBSD 5.3-STABLE i386 on a new Dell PowerEdge 2850,
    > but it crashes under load like "make buildworld" with a "panic: page
    > fault".
    >
    > The server has following configuration: 2x Intel Xeon 3.4 GHz (800 MHz
    > FSB), 6x 1 GB DDR2 ECC RAM and Perc 4e/Di (LSI Logic/amr driver).
    >
    > After some days working on the problem, I think there is some problem
    > with handling the memory. The only way I have got the server to become
    > stable was by switching a special option in the Dell BIOS, which
    > limits the system memory to 256 MB.
    >
    > I have tried to limit the memory to 4 GB by activating a spare memory
    > bank, but the server still crashes. Disabling HTT in BIOS and ACPI in
    > the loader also didn't solved the problem.
    >
    > The kernel is compiled with SMP of course and PAE because of >4 GB
    > memory. I have removed all the unnecessary devices.
    >
    > Dells own diagnostic tool couldn't find any hardware errors. The
    > special memory test also passed all tests. I have also tried with
    > memtest (http://www.memtest.org/) which either could find any memory
    > errors.
    >
    > Has anyone an idea to a solution? Has anyone succeeded running FreeBSD
    > 5.3 on similar hardware?
    >
    > Would it maybe be better to run the AMD64 version of FreeBSD 5.3? I
    > think the i386 version should be more stable?
    >

    Upgrade to 5-STABLE. I fixed these problems a few weeks ago.

    Scott
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