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Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!munnari.OZ.AU!spool.mu.edu!usenet.eel.ufl.edu!news.mathworks.com!newscaster-1.mcast.net!cs.tu-berlin.de!loewis From: loewis@cs.tu-berlin.de (Martin v.Loewis) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Kernel debugger Date: 17 Jul 1996 23:56:05 GMT Organization: Technical University of Berlin, Germany Lines: 15 Message-ID: <4sjuil$215@news.cs.tu-berlin.de> NNTP-Posting-Host: cent.cs.tu-berlin.de Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Is there a kernel debugger available for FreeBSD 2.1R? The kernel seems to support kadb, kgdb, and ddb. There is a man page for ddb. I could not find any of these tools, though. If there is, does it support - local debugging - symbolic debugging - breakpoints and single stepping If there is none, how would one reasonably investigate a problem? To take a random example :-), suppose your new file system driver would load, but mount(2) would return EINVAL before the VFS init function is called. How would you locate the problem? TIA, Martin