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    SubjectRe: bugs/regressions: report in LKML or in bugzilla?
    Le mardi 07 décembre 2010 à 16:39 +0100, Martin Steigerwald a écrit :

    > A participant of a linux performance training I hold found a bug with
    > window scaling which did not receive any reply as well:
    > Bug 20312 - System freeze with multiples of 32 in
    > /proc/sys/net/ipv4/tcp_adv_win_scale

    User bug ?


    tcp_adv_win_scale - INTEGER
    Count buffering overhead as bytes/2^tcp_adv_win_scale
    (if tcp_adv_win_scale > 0) or bytes-bytes/2^(-tcp_adv_win_scale),
    if it is <= 0.
    Default: 2

    Given we use 32bit numbers, using values outside of [-31 ... 31] makes litle sense.

    We could add sysctl range limit, but user should not mess with
    /proc/sys/net/ipv4/parameters unless he knows what he is doing ?

    Almost all /proc/sys/net/ipv4/parameters dont have range limits and unexpected
    results with insane values feeded.

    An other way to freeze a machine being root is :


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      Last update: 2010-12-07 21:53    [W:0.023 / U:134.540 seconds]
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