Date: Sun, 25 Jul 1999 01:08:07 +0200 From: Nicolas Souchu <nsouch@teaser.fr> To: Bruce Evans <bde@zeta.org.au> Cc: des@flood.ping.uio.no, sobomax@altavista.net, current@FreeBSD.ORG, obrien@NUXI.com Subject: Re: PLIP is still broken :( Message-ID: <19990725010807.06199@breizh.teaser.fr> In-Reply-To: <199907190937.TAA28795@godzilla.zeta.org.au>; from Bruce Evans on Mon, Jul 19, 1999 at 07:37:02PM %2B1000 References: <199907190937.TAA28795@godzilla.zeta.org.au>
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On Mon, Jul 19, 1999 at 07:37:02PM +1000, Bruce Evans wrote: > >>You misunderstood what Bruce wrote. PLIP has always been broken. It >>used to be possible to hack around the brokenness by setting the >>interrupt mask to net instead of tty. With newbus, this hack is no >>longer possible (it was never correct anyway; it broke printing). Or we shall consider changing isa_compat.c if we choose splnet for lpt. > >Or by statically configuring SLIP (which forced tty = net), or maybe >by dynamically configuring PPP. The tty = net hack went away with >old-bus, so SLIP is broken in much the same way as PLIP. > >>The problem with PLIP is that it tries to do splnet stuff in at >>spltty. If you force the parallell port driver to run at splnet, PLIP >>works but you get panics when you print because it tries to do spltty >>stuff at splnet. > >Possible quick fix (hack): change all the spltty()'s in lpt.c to >splnet()'s. lpt isn't a tty driver; it just abuses spltty(). Abusing >splnet() instead should work OK for lpt and fix if_plip. This seems good until the intr stuff handle dynamic update of a interrupt spl. Is there some work in progress on that? > >Bruce > > >To Unsubscribe: send mail to majordomo@FreeBSD.org >with "unsubscribe freebsd-current" in the body of the message > -- nsouch@teaser.fr / nsouch@freebsd.org FreeBSD - Turning PCs into workstations - http://www.FreeBSD.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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