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    SubjectRe: [oops] linux-2.4.14-pre2 - __remove_from_queues+14/28
    Date
    In article <20011027144624.A11364@lnuxlab.ath.cx>,
    khromy <khromy@lnuxlab.ath.cx> wrote:
    >If you need more info, let me know.

    Have you had any memory trouble or similar with this machine?

    It looks very much like a single-bit error:

    >Unable to handle kernel paging request at virtual address 00100000
    >c012e694
    >*pde = 00000000
    >Oops: 0002
    >CPU: 0
    >EIP: 0010:[<c012e694>] Not tainted
    >Using defaults from ksymoops -t elf32-i386 -a i386
    >EFLAGS: 00010246
    >eax: 00000000 ebx: c3135920 ecx: c3135920 edx: 00100000
    >esi: c3135a40 edi: c3135a40 ebp: c10c4bc0 esp: c1311f2c

    Here "edx" appears to be bh->b_pprev pointer, which can quite validly be
    NULL for a non-hashed page.

    So a value of all zeroes, or a kernel pointer value (ie 0xC.....) would
    be valid, but 0x00100000 is not.

    It doesn't have to be bad memory, of course - it could easily be a wild
    pointer and a bit set operation.. But.

    Linus
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