Date: Sun, 25 Nov 2012 13:48:23 +0000 From: Attilio Rao <attilio@freebsd.org> To: Pawel Jakub Dawidek <pjd@freebsd.org> Cc: "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org>, Adrian Chadd <adrian@freebsd.org>, Giovanni Trematerra <giovanni.trematerra@gmail.com>, freebsd-arch@freebsd.org Subject: Re: [RFQ] make witness panic an option Message-ID: <CAJ-FndDxTf3pEQ5S5TyJTh3rDSnErcsvZzGwyWwChD_d81uVoQ@mail.gmail.com> In-Reply-To: <20121125134743.GK1460@garage.freebsd.pl> References: <CAJ-Vmo=i=Amo_QqHi4GnGie0Gc0YnK3XaRKjvBO-=SFboFYPmA@mail.gmail.com> <CACfq090EiEiG7Ou2ZMUafWN6GLT9RNK1Q4tiOHnOBWe8GYJDjA@mail.gmail.com> <CAJ-VmonE3myRyeZ%2BAe0ZOXf7wKvC44rRVkFfDaEwnk8C-=5uoA@mail.gmail.com> <CAJ-FndCZPand_rx_uXUeetGMUZu1syGwjdFS7jv9BwdzuXvXOA@mail.gmail.com> <20121125123920.GI1460@garage.freebsd.pl> <CAJ-FndCnfqG4b_StS26WcPT-RhAhvJOOVryJ7rhi__y8Xkr92g@mail.gmail.com> <20121125131252.GJ1460@garage.freebsd.pl> <CAJ-FndAfCYmV7UawgxeKUMRaWaj%2B4XzVEUrxXnCC73sstJUqqg@mail.gmail.com> <20121125134743.GK1460@garage.freebsd.pl>
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On Sun, Nov 25, 2012 at 1:47 PM, Pawel Jakub Dawidek <pjd@freebsd.org> wrote: > On Sun, Nov 25, 2012 at 01:37:19PM +0000, Attilio Rao wrote: >> On Sun, Nov 25, 2012 at 1:12 PM, Pawel Jakub Dawidek <pjd@freebsd.org> wrote: >> > On Sun, Nov 25, 2012 at 12:42:16PM +0000, Attilio Rao wrote: >> >> On Sun, Nov 25, 2012 at 12:39 PM, Pawel Jakub Dawidek <pjd@freebsd.org> wrote: >> >> > WITNESS is a development tool. We don't ship production kernels with >> >> > WITNESS even compiled in. What is more efficient use of developer time: >> >> > going through full reboot cycle every time or reading the warning from >> >> > console, unloading a module, fixing the bug and loading it again? >> >> > >> >> > And if this option is turned off by default what is the problem? >> >> >> >> Yes, so, why do you write here? >> > >> > I'm trying to understand why do you object. Until now the only concern >> > you have that I found is that you are afraid of it being abused. I don't >> > see how this can be abused if it is turned off by default. If someone >> > will commit a change that will turn it on by default, believe me, I'll >> > unleash hell personally. >> >> So I don't understand what are you proposing. >> You are not proposing to switch BLESSING on and you are not proposing >> to import Adrian's patches in, if I get it correctly. I don't >> understand then. > > I propose to get Adrian's patches in, just leave current behaviour as > the default. So if I tell that I'm afraid this mechanism will be abused (and believe me, I really wanted to trimm out BLESSING stuff also for the same reason) and you say "you can't see how" there is not much we can discuss. You know how I think, there is no need to wait for me to reconsider, because I don't believe this will happen with arguments like "I don't think", "I don't agree", etc. Attilio -- Peace can only be achieved by understanding - A. Einstein
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