Date: Thu, 28 Feb 2002 10:45:00 -0800 (PST) From: Matthew Dillon <dillon@apollo.backplane.com> To: Julian Elischer <julian@elischer.org> Cc: John Baldwin <jhb@FreeBSD.org>, FreeBSD current users <current@FreeBSD.org>, FreeBSD current users <current@FreeBSD.org>, Seigo Tanimura <tanimura@r.dl.itc.u-tokyo.ac.jp>, Bosko Milekic <bmilekic@unixdaemons.com>, Alfred Perlstein <alfred@FreeBSD.org>, Terry Lambert <tlambert2@mindspring.com>, Bruce Evans <bde@zeta.org.au> Subject: Re: Patch for critical_enter()/critical_exit() & interrupt assem Message-ID: <200202281845.g1SIj0U37687@apollo.backplane.com> References: <Pine.BSF.4.21.0202281002200.6492-100000@InterJet.elischer.org>
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Not to put too fine a point on it, but, I don't see how this can
possibly justify preventing me from committing my critical_*() stuff.
You've just stated publically that your preemption stuff is unusable
as it currently stands. Why am I supposed to wait an arbitrary period
of time for you to fix, test, and commit it?
I would REALLY like to commit my critical_*() stuff, and for the record
this will also include the stage-2 stuff described in the original commit
comments that will be made a few days after the current commit.
-Matt
Matthew Dillon
<dillon@backplane.com>
:>
:> Preemptive kernels don't even make it out of single user mode for SMP machines,
:> ok? We aren't talking minor breakage here, we are talking _extreme_ breakage.
:> If people want to play with it, preempt.patch on freefall is updated via a cron
:> job every half hour or so. Unfortunately, however, it's in a limbo atm due to
:> KSE and needing to sort out how the priorities are going to work. It will
:> really be better to let KSE settle into the scheduler first adn then add
:> preemption to the scheduler itself afterwards.
:>
:> The reason I'm not pushing preemption into the tree fully (I've already
:> committed half of the original patch) is that there is other work (proc locking
:> for example) that gets us more bang for the buck.
:>
:> --
:>
:> John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/
:> "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/
:>
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