On Jan 22, 2005, at 21:22 Uhr, Justin Walker wrote:
FYI, if you do succeed in getting kprintf output directed to a serial
port (cf. mail from Markus and Felix in this thread), be aware that
using it will noticeably degrade the performance of your system (the
last I looked, kprintf() uses polling to output to its device, and for
serial, that means "forever" with interrupts disabled).
The last time I used kprintf to serial posts (when I was young, and
there was Rhapsody in the air), it degraded the performance of the
ethernet driver/network stack by about 90% (I was debugging the
stack).
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