[lkml]   [2012]   [Feb]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [PATCH RT 2/2 v4] preempt-rt/x86: Delay calling signals in int3
    On Fri, 2012-02-03 at 19:40 +0100, Oleg Nesterov wrote:

    > Stupid question. Do we really need to send the signal from here?

    If we can do it correctly elsewhere, I'm fine with that too :-)

    > Why force_sig(rt => T) can't set TIF_NOTIFY_RESUME instead? Then
    > we can change do_notify_resume() to check TIF_FORCE_SIG_TRAP. And
    > perhaps we can even avoid the new TIF_FORCE_SIG_TRAP, we could
    > check task->stored_info_set.

    You know the signal code much better than I do. If that works, I'm all
    for that too. I really don't like the entry_64 solution, but it was what
    I knew would work.

    > In fact I feel this can be simplified even more, but I am not sure.

    My strengths are in the entry_64.S code, not the signal code, so I fixed
    it the best way that I felt. This does not imply my fix is the best. If
    we can solve this in a clean way using the existing signal
    infrastructure, I'm all for that.

    -- Steve

     \ /
      Last update: 2012-02-03 21:13    [W:0.020 / U:1.084 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site