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    SubjectRe: [Jackit-devel] Re: Real-Time Preemption, -RT-2.6.10-rc2-mm3-V0.7.31-19
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    Lee Revell <rlrevell@joe-job.com> writes:

    > On Thu, 2004-12-02 at 11:07 -0600, Jack O'Quin wrote:
    > > Is printk() guaranteed not to wait inside the kernel? I am not
    > > familiar with its internal implementation.
    >
    > Yes. It just writes to a ring buffer and klogd dumps this to syslog.
    > So if you really start to spew printk's they don't all make it to the
    > log but you never get blocked.
    >
    > The implementation probably looks a lot like a correct solution to fix
    > the printf-from-RT-context issue in JACK would.

    Right. That's exactly what I have in mind, whenever I find time to
    work on it. :-)

    There's some similar code I wrote for JAMin, which we could adapt.
    --
    joq
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