Date: Sun, 11 Apr 2004 23:01:01 -0400 (EDT) From: "David E. Cross" <crossd@cs.rpi.edu> To: freebsd-acpi@freebsd.org Subject: System weirdness (followup) Message-ID: <20040411225543.P20829@kiki.cs.rpi.edu>
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Ok, since I put the hint.apic.0.disabled=1 in loader.conf I have been noticing weirdness on my system, programs will randomly bus-error on startup (I have noticed it with grep, dd, and md5). It appears to only be on startup, and only the first time I run the program (when it needs to get it from disk). Dmesg shows no errors (read errors, swap errors, etc), and I doubt hardware because 1) It just started doing this 2) I have ECC everything 3) it is always bus-error (not seg fault, ILL, or other things that traditionally indicate hardware/memory issues, and 4) its only at program initialization. Is it possible that turning of the IOAPIC caused some sort of issue or race withing the system? It really looks like the error is a page is attempted to be executed before its pinned; (like a fault occurs on one CPU, and then the process is switched to the other before its pulled in, and "boom" -- David E. Cross
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