From owner-freebsd-alpha Sun Aug 19 19:22: 5 2001 Delivered-To: freebsd-alpha@freebsd.org Received: from duke.cs.duke.edu (duke.cs.duke.edu [152.3.140.1]) by hub.freebsd.org (Postfix) with ESMTP id 10D9637B415 for ; Sun, 19 Aug 2001 19:22:03 -0700 (PDT) (envelope-from gallatin@cs.duke.edu) Received: from grasshopper.cs.duke.edu (grasshopper.cs.duke.edu [152.3.145.30]) by duke.cs.duke.edu (8.9.3/8.9.3) with ESMTP id WAA19961; Sun, 19 Aug 2001 22:22:01 -0400 (EDT) Received: (from gallatin@localhost) by grasshopper.cs.duke.edu (8.11.3/8.9.1) id f7K2LWc27449; Sun, 19 Aug 2001 22:21:32 -0400 (EDT) (envelope-from gallatin@cs.duke.edu) From: Andrew Gallatin MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <15232.29740.434880.140986@grasshopper.cs.duke.edu> Date: Sun, 19 Aug 2001 22:21:32 -0400 (EDT) To: naddy@mips.inka.de (Christian Weisgerber) Cc: freebsd-alpha@FreeBSD.ORG Subject: Re: alpha problems on current In-Reply-To: <9ln48d$1ml6$1@kemoauc.mips.inka.de> References: <20010817081929.A2859@freebie.xs4all.nl> <20010817152742.B437@cicely20.cicely.de> <9lje5o$24ra$1@kemoauc.mips.inka.de> <20010818172224.A4918@cicely20.cicely.de> <9ln48d$1ml6$1@kemoauc.mips.inka.de> X-Mailer: VM 6.75 under 21.1 (patch 12) "Channel Islands" XEmacs Lucid Sender: owner-freebsd-alpha@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Christian Weisgerber writes: > Bernd Walter wrote: > > > > > > - I'm seeing mysterious writes (kevent says NOTE_WRITE) to my > > > > > executables. I suspect this is a VM bug. > > > > Have you found a way to isulate when it happens? > > No. I wrote a little program that watches /bin/* through kevent(2), > but I'm uncertain how to trace this any further. The writes don't > appear to be related to any particular system activity, although > they possibly correlate with the amount of activity. Also, if I > don't run setiathome in the background I get far fewer writes. You might try putting a breakpoint (compile with ddb, insert Debugger("foo")) into the appropriate kqueue filtering code and getting a stack trace. I'm not sure how many NOTE_WRITE filters will be in use other than yours, but you should be able to catch it.. Drew To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message