On 2008-08-25 21:27, Renato Botelho wrote: > cpu0: <ACPI CPU> on acpi0 > est0: <Enhanced SpeedStep Frequency Control> on cpu0 > est0: Guessed bus clock (high) of 200 MHz > > Fatal trap 18: integer divide fault while in kernel mode > cpuid = 0; acpi id = 00 > ... > panic: integer divide fault
Unfortunately, there are CPU models around that have MSR_PERF_STATUS bits that are inconsistent, e.g: - The low and high multipliers (bits 31:24 and 15:8) are equal, so if you subtract them and then divide... boom :) - Either the low or high multipliers (or both) are zero, which is also not good, at least not with the current code. As an example, I originally added some multiplier sanity checks here: http://www.openbsd.org/cgi-bin/cvsweb/src/sys/arch/i386/i386/est.c#rev1.27 _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/cvs-all To unsubscribe, send any mail to "[EMAIL PROTECTED]"
