Messages in this thread |  | | | From | Andi Kleen <> | | Subject | Re: NMI problems with Dell SMP Xeons | | Date | Wed, 7 Jun 2006 10:01:40 +0200 |
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> > Two ways: > > (1) Boot with a kernel with CONFIG_ACPI=n, so the OS only finds 2 cpus > in the MPT instead of the 4 listed by ACPI. > > (2) The kernel has ACPI=y, but is booted with maxcpus=2. > > In both cases, send_IPI_allbutself() with IPI 2 or an NMI will result > in a hard reset.
Sounds both like a "Don't do that when it hurts" . I know some people have religious issues with ACPI, but it's simple a fact that many modern boxes don't work correctly in obvious or subtle ways without it.
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