Date: Tue, 29 Sep 2009 14:08:30 -0500 (CDT) From: Mark Tinguely <tinguely@casselton.net> To: mlfbsd@kanar.ci0.org, tom@tomjudge.com Cc: freebsd-hackers@freebsd.org Subject: Re: Help debugging: Fatal kernel mode data abort: 'External Linefetch Abort (P)' Message-ID: <200909291908.n8TJ8UA2042239@casselton.net> In-Reply-To: <4AC21F44.6060004@tomjudge.com>
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I don't know anything about the code other than what I read today ... It appears from you boot traces the owin[0].owin_xlate_[lo | hi] values should be fine in iq80321.c - an "VERBOSE_INIT_ARM" would confirm it. You might want to test if the "sc" pointer in iq80321.c has the same value as the global "i80321_softc" pointer. You can add those print statements to an "VERBOSE_INIT_ARM". It will tell you if something changed the global pointer or if something overwrote the owin values in the structure. If global pointer or owin was changed before the pci attach code, you can put the appropriate test into the earlier (obio, uart, itimer, iopwdtimer) attach. None of these attaches use the global "i80321_softc" pointer. --Mark.
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