[lkml]   [2004]   [Dec]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [Jackit-devel] Re: Real-Time Preemption, -RT-2.6.10-rc2-mm3-V0.7.31-19
Lee Revell <> 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.
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: 2005-03-22 14:08    [W:0.049 / U:5.572 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site