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    SubjectRe: [PATCH 08/12] add trace events for each syscall entry/exit
    On 08/26/2009 12:10 AM, Peter Zijlstra wrote:
    > On Tue, 2009-08-25 at 14:31 -0400, Mathieu Desnoyers wrote:
    >> For instance, some
    >> proprietary Linux driver does very odd things with system calls within
    >> kernel threads, like invoking them with int 0x80.
    >
    > So who is going to send the x86 patch to make int 0x80 from kernel space
    > panic the machine? :-)

    Panicing might be a pretty darn good idea, since $DEITY knows what state
    your stacks are in at that point, and if it is about to overflow.

    ... besides all the other evilness that entails.

    -hpa

    --
    H. Peter Anvin, Intel Open Source Technology Center
    I work for Intel. I don't speak on their behalf.



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