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    SubjectRe: Segfault on the i386 enter instruction
    On Mon, May 15, 2006 at 09:15:31PM +0400, Stas Sergeev wrote:
    > Hi.
    >
    > Andi Kleen wrote:
    > >>Aren't the rlimit and the other checks of acct_stack_growth()
    > >>not enough, or am I missing something obvious?
    > >Traditionally Linux doesn't have a stack ulimit.
    > That clarifies the roots of this %esp check, as without
    > the stack ulimit and without the proper memory accounting
    > (the case of 2.4?) such a check is the "last hope" - I've
    > got the point. But are there the reasons to still keep it
    > in 2.6, considering also the false-positives? It seems to
    > have the STACK_RLIMIT and it seems to get the memory accounting
    > right, and not too many arches seem to have such a check even.

    Linux doesn't have a STACK_RLIMIT by default no.
    It is set by a few distributions (for use with flexmmap) in PAM, but
    not by all. The kernel defaults don't have it.

    -Andi
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