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    SubjectRe: 2.6.33-rc8 breaks UML with Restrict initial stack space expansion to rlimit
    On Mon, Feb 15, 2010 at 11:38:52AM +0900, KOSAKI Motohiro wrote:
    > Wow. It seems very strange. Usually stack overflow makes SIGSEGV, not SIGKILL.
    > plus, In my environment (x86_64 non-uml), mount command doesn't use
    > the stack so much.

    The SIGKILL part is the odd one, I would assume.. It looks like about
    half of the commands are failing with SIGKILL even with ulimit -s 8192
    and the ulimit -s value did not really change the failure rate that
    much if at all. SIGSEGV starts showing up only after having limited
    ulimit -s to quite samll number (see my previous email).

    > % /usr/bin/time --format="mem %M" ls
    > /usr/bin/time --format="mem %M" ls
    > GPATH INSTALL README configure fdisk lib misc-utils schedutils
    > mem 3232

    mem 3296
    on my UML setup

    > % sudo /usr/bin/time --format="mem %M" mount -a
    > sudo /usr/bin/time --format="mem %M" mount -a
    > mem 2992

    mem 2928

    --
    Jouni Malinen PGP id EFC895FA


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