Early use of log() does not end up in kernel msg buffer
eric at badgerio.us
Fri Mar 27 03:22:11 UTC 2015
Using log(9) when no process is reading the log results in the message
going only to the console (contrast with printf(9), which goes to the
console and to the kernel message buffer in this case). I believe it is
truer to the semantics of logging for messages to *always* go to the
message buffer (where they can eventually be collected and in fact put
into a logfile). I therefore propose the attached patch, which sends
log(9) to the message buffer always, and to the console only if no one
has yet opened the log.
It may be more complete to log to the console only if the log level is
greater than some (user defined) value, but this seems like that might
be more than necessary for this case.
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