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    SubjectRe: [ANNOUNCE] 3.0-rt6
    On 08/04/2011 02:42 AM, Peter Zijlstra wrote:
    > On Wed, 2011-08-03 at 23:34 -0700, Fernando Lopez-Lezcano wrote:
    >> [ 117.026009] [<ffffffff814ef322>] _raw_spin_lock+0x45/0x79
    >> [ 117.026009] [<ffffffff8107b6f1>] ? __run_posix_cpu_timers+0x8f/0x353
    >> [ 117.026009] [<ffffffff8107b6f1>] __run_posix_cpu_timers+0x8f/0x353
    >
    > I think its this one, could you confirm?

    If this was later part of rt8 then yes, Tracey was able to boot on
    fc15/x86_64 with no further problems (3.0.1 + rt8). I was also able to
    boot rt8 this morning in my fc15 test laptop with no bugs or oops so
    far... still testing but looks promising.

    Thanks again!
    -- Fernando


    > ---
    > Index: linux-2.6/kernel/posix-cpu-timers.c
    > ===================================================================
    > --- linux-2.6.orig/kernel/posix-cpu-timers.c
    > +++ linux-2.6/kernel/posix-cpu-timers.c
    > @@ -1288,10 +1288,11 @@ static inline int fastpath_timer_check(s
    > sig = tsk->signal;
    > if (sig->cputimer.running) {
    > struct task_cputime group_sample;
    > + unsigned long flags;
    >
    > - raw_spin_lock(&sig->cputimer.lock);
    > + raw_spin_lock_irqsave(&sig->cputimer.lock, flags);
    > group_sample = sig->cputimer.cputime;
    > - raw_spin_unlock(&sig->cputimer.lock);
    > + raw_spin_unlock_irqrestore(&sig->cputimer.lock, flags);
    >
    > if (task_cputime_expired(&group_sample,&sig->cputime_expires))
    > return 1;
    >
    > --
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