[lkml]   [2006]   [Jun]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: 2.6.17-rc6-rt3

    * Sébastien Dugué <> wrote:

    > > I think all of the regressions reported against rt1 are fixed, please
    > > re-report if any of them is still unfixed.
    > Great, boots fine on my dual Xeon and solves the ping problem I was
    > having.
    > Thomas, any hint at what was going on?

    the problem was caused by a mismerge of the __raise_softirq_irqoff()
    changes of preempt-softirqs. In PREEMPT_SOFTIRQS, softirq activation
    means a wakeup of the softirq thread - hence __raise_softirq_irqoff()
    must wake up the softirq thead too. This didnt happen in -rt1 so the
    network softirq (which processes things like ping reply packets) got
    delayed to the natural softirq event - the next timer interrupt in the
    usual case. Hence depending on HZ you got a delay of 1-4-10 msecs
    (divided into two parts).

    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2006-06-12 11:24    [W:0.021 / U:9.752 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site