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Date: Tue, 29 May 2001 11:12:01 +1000
From: Andrew Morton <andrewm@uow.edu.au>
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To: Richard Gooch <rgooch@ras.ucalgary.ca>
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Subject: Re: Kernel 2.4.5-ac2 OOPs when run pppd ?
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Richard Gooch wrote:
> 
> How about having a helper function for interrupt handlers which queues
> characters to be sent to the console? kconsoled anyone? Blocking
> interrupts is quite distressing, so we need to be consoled ;-)

I don't think we need it, Richard.  These writes to tty
devices from interrupt context are coming from line
disciplines - n_hdlc, ppp, r3964, etc.

Now, while it may be amusing to see if you can successfully
negotiate a PPP session by typing raw LCP, there really isn't,
I believe, a useful reason for attaching one of these ldiscs
to the console tty.

Interrupt-context writes to the *console*, as opposed to
the console *tty* work just fine, of course.  printk.