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    SubjectRe: [patch] 'coredump crash' fixed
    MOLNAR Ingo wrote:
    > The reason why we crash and why it made the kernel
    > reboot in such a nasty way was that munmap() did just a tad more work than
    > necessary and we zapped 0xc0000000's page table entry ... that is a pretty
    > vital piece of 4M virtual space on Linux ;) (erm, just dont ask me how i
    > managed to debug this ;)

    Which then unmapped the interrupt descriptor table, so the next
    interrupt causes a triple-fault and resets the cpu. Don't you just love
    off-by-one errors?

    --

    Brian Gerst

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