Messages in this thread | | | From | (H. Peter Anvin) | Subject | Re: [PATCH] NMI trap revised (was Re: NMI errors in 2.0.30??) | Date | 9 May 1997 22:50:06 GMT |
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Followup to: <33759b5c.401501@mail.cybernex.net> By author: tenthumbs@cybernex.net In newsgroup: linux.dev.kernel > > On Fri, 9 May 1997 22:21:41 +0200 (MET DST), you wrote: > > > This is not a point. The BIOS setup is done by you with your hands. You > > can decide to enable/disable the NMIs and enable/disable Parity or ECC > > checks. Since this configuration is alredy done by the BIOS, which tests > > the machine before booting it, you should be confident that when the "Now > > booting the kernel" message is displayed, the machine is reasonably set > > up. No kernel initialization is needed, and forcing some initialization > > not done at BIOS stage can be very dangerous (See my PATCH3 e-mail > > about NMI tests with non-NMI memory). > > > > Again, this is only true if the BIOS completely understands the > current hardware. I wouldn't bet the mortgage money on that. There > are plenty of BIOSes that are just plain buggy. >
Nevertheless, it is wrong of the kernel to assume the user want something else, especially since this may very well break systems with non-parity RAM installed. Kernel command line option, fine, but not unilateral change...
-hpa
-- Always looking for a few good BOsFH. ** Linux - the OS of global cooperation I am Baha'i -- ask me about it or see http://www.bahai.org/
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