Date: Tue, 8 Jan 2008 14:22:07 +0000 From: Adrian Wontroba <aw1@stade.co.uk> To: Eugene Grosbein <eugen@kuzbass.ru> Cc: freebsd-stable@freebsd.org Subject: Re: RELENG7 using lpt causes panic Message-ID: <20080108142207.GA1509@steerpike.hanley.stade.co.uk> In-Reply-To: <20080108065240.GA11135@svzserv.kemerovo.su> References: <20080108030857.GA93021@steerpike.hanley.stade.co.uk> <20080108065240.GA11135@svzserv.kemerovo.su>
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On Tue, Jan 08, 2008 at 01:52:40PM +0700, Eugene Grosbein wrote: > On Tue, Jan 08, 2008 at 03:08:57AM +0000, Adrian Wontroba wrote: > > > I've recently switched some of my home systems to RELENG7. > > > > All seemed fairly well until I tried printing a CUPS test page on my > > backup and print server to an elderly Laserjet IIIp, where I seem to > > have a reproducible panic. It has happened twice. This is painful, as > > I have a big home fileystem (striped over two mirrors over most of two > > 500 GB disks). The gmirror syncronisation and background fsck leave the > > system close to unusable for hours while they fight over the disks. > > > > I was somewhat startled that something so basic as printing causes a > > panic. There have been no hardware changes since I last printed under > > RELENG6, but I don't print often, so hardware decay is a possibility. > > > > Is this a known problem? If not, I'll take the time to try various tests > > (with /home unmounted) and raise a PR. > > There is a PR about this problem with workaround: > http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/117973 > > Eugene Grosbein My thanks to Eugene for the pointer to a known workaround (switching the printer driver to extended mode before printing with '/usr/sbin/lptcontrol -e -d /dev/lpt0.ctl') and to John for explaining the underlying issue and intentions for fixing it. -- Adrian Wontroba Heisenberg may have done it.
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