From owner-freebsd-hackers Fri Feb 26 3:48:45 1999 Delivered-To: freebsd-hackers@freebsd.org Received: from herring.nlsystems.com (nlsys.demon.co.uk [158.152.125.33]) by hub.freebsd.org (Postfix) with ESMTP id 711C414F29 for ; Fri, 26 Feb 1999 03:48:19 -0800 (PST) (envelope-from dfr@nlsystems.com) Received: from localhost (dfr@localhost) by herring.nlsystems.com (8.9.3/8.8.8) with ESMTP id LAA71222; Fri, 26 Feb 1999 11:47:43 GMT (envelope-from dfr@nlsystems.com) Date: Fri, 26 Feb 1999 11:47:31 +0000 (GMT) From: Doug Rabson To: Matthew Dillon Cc: Julian Elischer , Luoqi Chen , freebsd-hackers@FreeBSD.ORG, mjacob@feral.com Subject: Re: Panic in FFS/4.0 as of yesterday - update In-Reply-To: <199902252340.PAA09708@apollo.backplane.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Thu, 25 Feb 1999, Matthew Dillon wrote: > : The patch I've supplied has one bug in it that came up... While building > : the world one of my 'ranlib's got stuck in 'newbuf' even after plenty of > : buffers were freed up. I think it's a simple missing wakeup... when > : I spiked the load the ranlib got going again ( too bad, I was trying to > : gdb -k the running system and the gdb command unstuck the ranlib! ). > > Fragmentation in the buffer_map, even though it is *twice* the size of > maxbufspace, can cause map allocations to fail due to fragmentation. Defragment by moving non-busy buffers around in the map? Not a huge amount of fun to be had there :-(. -- Doug Rabson Mail: dfr@nlsystems.com Nonlinear Systems Ltd. Phone: +44 181 442 9037 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message