Date: Sun, 26 Jan 1997 19:56:20 +1100 From: Bruce Evans <bde@zeta.org.au> To: bde@zeta.org.au, dgy@rtd.com Cc: freebsd-hackers@freefall.freebsd.org Subject: Re: suggestion for kernel printk() ? Message-ID: <199701260856.TAA23790@godzilla.zeta.org.au>
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>> probing all the devices. printf() doesn't have any flow control. It >> can't afford to pause once the system is up because that would freeze >> the whole system. Freezing for 1 msec per character to for output at >> 9600 bps is bad enough. > >But would it actually *break* anything? Perhaps I'll hack in a two line >patch next time I rebuild a kernel and see what happens... Yes, it would steal characters from the foreground console unless the keyboard is dedicated to low-level console input. Bruce
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