[prev in list] [next in list] [prev in thread] [next in thread] 

List:       freebsd-hackers
Subject:    Re: dtrace vs module unloading
From:       Ryan Stone <rysto32 () gmail ! com>
Date:       2013-01-27 14:41:28
Message-ID: CAFMmRNzzD82NLOgUWFS-eZHgAqvFPDpfthfREAjnR+_J1TtQWw () mail ! gmail ! com
[Download RAW message or body]

On Sun, Jan 27, 2013 at 7:24 AM, Andriy Gapon <avg@freebsd.org> wrote:

>
> It seems that FreeBSD DTrace currently does not track module loading /
> unloading
> at all.  dtrace_module_loaded/dtrace_module_unloaded are both under ifdef
> sun.
>
> I think that this is a root cause of e.g. fbt probes for some functions
> remaining after a module that provides the functions is unloaded.
>
> It looks like currently we do not post any event when a module gets loaded
> /
> unloaded.  Perhaps this is one of the factors in current situation.
> OTOH, in Solaris they just have some dtrace hooks in the form of function
> pointers directly in the module handling code (equivalent of our
> kern_linker).
>

I have a PR in about this.  I haven't had a chance to look into fixing it
myself.
_______________________________________________
freebsd-hackers@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-hackers
To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org"
[prev in list] [next in list] [prev in thread] [next in thread]