DragonFly kernel List (threaded) for 2004-09
Re: ktr port from FreeBSD
:I have ported ktr (kernel trace routines) from FreeBSD (who took it from
:I will commit it in some days if there are no major issues with it.
:FreeBSD also have a ktrdump util which I will commit later.
I don't know about this. It (the FreeBSD code) looks poorly designed
Also, the FreeBSD code probably used mutexes where you are using a token.
For ktr_tracepoint() to be callable from 'anywhere' you can't use a token
there but must instead convert the code to use a critical section and
Also, 1024 entries is probably not nearly enough for a tracepoint
utility to be useful. We'd need a lot of entries... a million or more,
for it to be really useful, which implies dynamically allocating the
array at boot time rather then declaring it static.