Date: Thu, 17 Dec 1998 11:30:59 -0800 (PST) From: Julian Elischer <julian@whistle.com> To: David Greenman <dg@root.com> Cc: "Marc G. Fournier" <marc.fournier@acadiau.ca>, freebsd-scsi@FreeBSD.ORG, freebsd-current@FreeBSD.ORG Subject: Re: any way of gleaming info from these? Message-ID: <Pine.BSF.3.95.981217113030.2175A-100000@current1.whistle.com> In-Reply-To: <199812170748.XAA19152@root.com>
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On Wed, 16 Dec 1998, David Greenman wrote: > >On Wed, 16 Dec 1998, David Greenman wrote: > > > >> >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? > > -DG > > David Greenman > Co-founder/Principal Architect, The FreeBSD Project > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-scsi" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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