Date: Tue, 14 Oct 1997 08:39:55 +0200 From: Poul-Henning Kamp <phk@critter.freebsd.dk> To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) Cc: freebsd-current@FreeBSD.ORG (FreeBSD-current users) Subject: Re: lockmgr panic Message-ID: <1631.876811195@critter.freebsd.dk> In-Reply-To: Your message of "Mon, 13 Oct 1997 23:08:18 %2B0200." <19971013230818.ZB55478@uriah.heep.sax.de>
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In message <19971013230818.ZB55478@uriah.heep.sax.de>, J Wunsch writes: >As Poul-Henning Kamp wrote: > >> I hacked this little "genuine ram disk driver" up a couple of days ago, >> if should do everything you would want to have done if this is for release >> building: > >Well, i think this requires quite a number of changes in the release >Makefile... so i'm a little reluctant to bring it in before 2.2.5 >ships. But i get the point. > >> #ifndef RD0_SIZE >> #define RD0_SIZE (80*2*18*512) >> #endif > >That's ugly. My suggestion: provide two minor numbers per >pseudo-device. The first is the actual rd driver, the second is the >control device. For the control device, define an ioctl command that >gets down the desired size, and allocates a (optionally pageable) >buffer for it. Joerg, I spent all of 30 minutes on this ting, and I just hacked it together for a particular experiment, OK ? :-) I offered it here as a bandaid if release building was in trouble, not as a solution for world poverty... :-) -- Poul-Henning Kamp FreeBSD coreteam member phk@FreeBSD.ORG "Real hackers run -current on their laptop."
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