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    SubjectRe: 2.6.18-rt1
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    On Wed, 2006-09-20 at 21:46 +0200, Ingo Molnar wrote:
    > * Gene Heskett <gene.heskett@verizon.net> wrote:
    >
    > > That looks like the chorus of the song I saw when it crashed on boot,
    > > pretty darned close to identical.
    >
    > ok, i've uploaded -rt3:
    >
    > http://redhat.com/~mingo/realtime-preempt/
    >
    > this should have this one fixed.
    >
    > Ingo

    What about the !PREEMPT_RT case.. It still wouldn't disable interrupts
    in the below..


    - local_irq_save(flags);
    if (up->port.sysrq) {
    /* serial8250_handle_port() already took the lock */
    locked = 0;
    } else if (oops_in_progress) {
    - locked = spin_trylock(&up->port.lock);
    + locked = spin_trylock_irqsave(&up->port.lock, flags);
    } else
    - spin_lock(&up->port.lock);
    + spin_lock_irqsave(&up->port.lock, flags);



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