From owner-freebsd-current Thu Dec 17 11:53:21 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id LAA08527 for freebsd-current-outgoing; Thu, 17 Dec 1998 11:53:21 -0800 (PST) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from root.com (root.com [198.145.90.17]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id LAA08510; Thu, 17 Dec 1998 11:53:17 -0800 (PST) (envelope-from root@root.com) Received: from root.com (localhost [127.0.0.1]) by root.com (8.8.8/8.8.5) with ESMTP id LAA25533; Thu, 17 Dec 1998 11:52:59 -0800 (PST) Message-Id: <199812171952.LAA25533@root.com> To: Julian Elischer cc: "Marc G. Fournier" , freebsd-scsi@FreeBSD.ORG, freebsd-current@FreeBSD.ORG Subject: Re: any way of gleaming info from these? In-reply-to: Your message of "Thu, 17 Dec 1998 11:30:59 PST." From: David Greenman Reply-To: dg@root.com Date: Thu, 17 Dec 1998 11:52:59 -0800 Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG >> >> >vnode_pager_putpages: residual I/O 4096 at 113 >> >> >vnode_pager_putpages: I/O error 6 >> >> >vnode_pager_putpages: residual I/O 4096 at 113 >> >> >vnode_pager_putpag_putpage_pager_putpages: residual I/O 4096 at 113 >> >> >vnode_pager_putpages: I/O error 6 >> >> >vnode_pager_putpages: residual I/O 4096 at 113 >> >> > >> >> >maybe its totally impossible, but is there no way of detailing which drive >> >> >is causing this? or is it not a drive? >> >> >> >> Error 6 is ENXIO - device not configured. This might happen if the device >> >> is SCSI and it loses power/goes offline. I can't think of any other reasons >> >> offhand. >> > >> >Hrmmm...is vnode_pager_putpages a 'file system' error, or a 'swap' error? >> >The system is locked up right now, awaiting someone to get down to the >> >office and reboot it. >> >> vnode_pager_putpages is a routine, not an error (well...:-)). I don't know >> what is returning ENXIO, but putpages just calls the filesystem VOP_PUTPAGES >> entry, so you'd have to look at that. vnode_pager_putpages isn't usually >> called very often in a typical system - it's used when mapped/modified file >> pages need to be written back to the backing file, which doesn't normally >> happen on a typical system (modified pages are usually backed by swap, not >> the file). >> >> >Looking through /usr/src/sys, the error message is generated in >> >vm/vnode_pager.c...which, to me, would indicate swap space? >> >> No, the swap_pager pages out to swap. The vnode_pager pages out to files. > >I THINK the vnode pager is called if you are writing to a mmapped file, >right? Yes, if it is mapped shared and writable. -DG David Greenman Co-founder/Principal Architect, The FreeBSD Project To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message