On Thu, Sep 13, 2012 at 10:26:22PM +0000, Attilio Rao wrote: > Author: attilio > Date: Thu Sep 13 22:26:22 2012 > New Revision: 240475 > URL: http://svn.freebsd.org/changeset/base/240475 > > Log: > Remove all the checks on curthread != NULL with the exception of some MD > trap checks (eg. printtrap()). > > Generally this check is not needed anymore, as there is not a legitimate > case where curthread != NULL, after pcpu 0 area has been properly > initialized. I do not disagree with the patch, but I do with this statement. During the AP startup, there is indeed a window while curthread is NULL. Unfortunately, trying to panic there is worse then not panic.
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