Date: Mon, 07 Dec 1998 15:47:57 -0800 From: Mike Smith <mike@smith.net.au> To: Mikael Karpberg <karpen@ocean.campus.luth.se> Cc: mike@smith.net.au (Mike Smith), tlambert@primenet.com, wpaul@skynet.ctr.columbia.edu, current@FreeBSD.ORG Subject: Re: New drivers and install floppy space Message-ID: <199812072347.PAA00852@dingo.cdrom.com> In-Reply-To: Your message of "Mon, 07 Dec 1998 02:52:40 %2B0100." <199812070152.CAA13609@ocean.campus.luth.se>
next in thread | previous in thread | raw e-mail | index | archive | help
> According to Mike Smith: > > > o a mechanism for dumping drivers from the kernel after > > > installation so that they need not be installed twice: > > > once to boot, once to install; this probably implies > > > driver data areas be mapped copy-on-write to maintain > > > the data image integrity to allow it to be written > > > back out > > > > This is actually fairly tough, as the entire ELF object is not loaded > > in the first place. My preference is simply to track the driver(s) > > that are loaded, and request the use re-provide the media from which > > the driver was read when it comes time to copy it. > > Wouldn't the best and easiest solution here be something like this in > the loader: save_drivers_in_ram = (total_ram_MB > 8); > And if the variable is set, you just don't load the driver, you also > store the complete file it was loaded from in a memory block which > can then just be dumped to file. If you don't have enough memory to do > that, you can ask for the disks again, instead. That sounds like a worthwhile optimisation, but since you need to support asking for the disks, it's probably better to start with that first. -- \\ Sometimes you're ahead, \\ Mike Smith \\ sometimes you're behind. \\ mike@smith.net.au \\ The race is long, and in the \\ msmith@freebsd.org \\ end it's only with yourself. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199812072347.PAA00852>