From owner-freebsd-bugs Thu Jan 17 13: 0: 9 2002 Delivered-To: freebsd-bugs@hub.freebsd.org Received: from freefall.freebsd.org (freefall.FreeBSD.org [216.136.204.21]) by hub.freebsd.org (Postfix) with ESMTP id 9177237B419 for ; Thu, 17 Jan 2002 13:00:03 -0800 (PST) Received: (from gnats@localhost) by freefall.freebsd.org (8.11.6/8.11.6) id g0HL03i80350; Thu, 17 Jan 2002 13:00:03 -0800 (PST) (envelope-from gnats) Date: Thu, 17 Jan 2002 13:00:03 -0800 (PST) Message-Id: <200201172100.g0HL03i80350@freefall.freebsd.org> To: freebsd-bugs@FreeBSD.org Cc: From: Sheldon Hearn Subject: Re: bin/33941: /usr/sbin/dev_mkdb dumps core Reply-To: Sheldon Hearn Sender: owner-freebsd-bugs@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org The following reply was made to PR bin/33941; it has been noted by GNATS. From: Sheldon Hearn To: Ryan Dooley Cc: bug-followup@freebsd.org, dillon@FreeBSD.org Subject: Re: bin/33941: /usr/sbin/dev_mkdb dumps core Date: Thu, 17 Jan 2002 22:55:44 +0200 On Thu, 17 Jan 2002 12:00:05 PST, Ryan Dooley wrote: > The only difference(s) are: (new vs. old where problem exists) > > 1) Generic Mach32 video card vs. 3Dfx Voodoo3 PCI video card, > 2) 128MB ram vs. 384MB ram, and > 3) generic newfs options vs. -b 32768 and -f 4096. I'd be _very_ careful trying a block size anything larger than 16384. I've heard horrible things about larger block sizes. I'm pretty sure Matt Dillon warned that >16384 block sizes would cause undesirable behaviour in the VM sysystem. Certainly, VM problems could account for your SEGV. Matt? Am I smoking crack, or did you say Very Bad Things about the VM system and block sizes >16384? Ciao, Sheldon. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message