[SLE] Higher CPU ext. freq setting causes kernel panic

From: Dale Mirenda (dmirenda_at_shap.com)
Date: 06/10/04

  • Next message: John Andersen: "Re: [SLE] SuSE Pro 9.1 - DNS and DHCP interaction" 
    To: suse-linux-e@suse.com
Date: Wed, 9 Jun 2004 22:45:15 -0700

    SuSE 9.1, kernel 2.6.x
    Asus A7N8X mboard (BIOS 1007; latest)
    Athlon XP 3200 Barton
    Corsair Twin-X 512x2 RAM

    OS boots normally if CPU ext. Freq setting in bios is set to 100 Mhz,
    but CPU at boot is reported as Athlon XP 1100MHz , and system runs slow
    (but stable).
    Changing the setting to 200 MHz, CPU at boot is reported as Athlon XP
    3200+ but the OS always hangs before completing bootup, with "kernel
    panic: VFS: Unable to mount root fs on unknown-block(8,5)."

    Did a lot of net searches for this problem, have seen fixes related to
    memory (mem=1024k) and grub (root=/dev/hdxx) but nothing relating to
    the CPU frequency. I don't understand why the kernel would react this
    way to a faster CPU.

    If this is a known prob, can someone point me to a FAQ? If not, any
    ideas on where I should go to resolve it?

    I've tried booting from SuSE install cd. The boot hangs at different
    points depending on which boot option I try, but it always hangs.

    TIA for your assistance.

    Dale 

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