Date: Sat, 03 Mar 2001 19:20:26 -0500 From: "Louis A. Mamakos" <louie@TransSys.COM> To: Kris Kennaway <kris@obsecurity.org> Cc: Danny Braniss <danny@cs.huji.ac.il>, FreeBSD-stable <freebsd-stable@FreeBSD.ORG> Subject: Re: wchan kqread Message-ID: <200103040020.f240KQW50170@whizzo.transsys.com> In-Reply-To: Your message of "Sat, 03 Mar 2001 14:47:16 PST." <20010303144716.A33685@mollari.cthul.hu> References: <E14ZEFk-0001da-00@cs.huji.ac.il> <20010303144716.A33685@mollari.cthul.hu>
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> On Sat, Mar 03, 2001 at 05:47:28PM +0200, Danny Braniss wrote: > > i did, but did not compile it :-), since all i did was to reconfigure a kernel. > > > > now it works again. thanks! > > > > btw, what is the way of knowing when a change in the kernel affects userland > > programs? > > You can't, but you're expected to build a new world each time you > update your kernel sources. The kernel and userland are an inseparable > whole, and you'll generally have weird problems if you only do one or > the other. Uh, I certainly hope not. My understanding is that the kernel interfaces are generally upwards compatible; that is, you can most to a newer kernel without major impact to existing userland software. If this upwards compatability isn't working, then that's a bug. The reverse may not be true; new userland code may take advantage of new kernel services or APIs. louie To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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