Date: Sun, 30 Aug 2009 01:31:05 -0500 From: Dan Nelson <dnelson@allantgroup.com> To: Richard Mahlerwein <mahlerrd@yahoo.com> Cc: FreeBSD-Stable <freebsd-stable@freebsd.org> Subject: Re: Fatal Trap 12 in various processes always at address 0x3030313a Message-ID: <20090830063104.GB2855@dan.emsphone.com> In-Reply-To: <772579.96245.qm@web51002.mail.re2.yahoo.com> References: <772579.96245.qm@web51002.mail.re2.yahoo.com>
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In the last episode (Aug 29), Richard Mahlerwein said: > (Sorry, update to subject to be <something>) > > 3 weeks ago: > I upgraded from 7.1-PRELEASE to -stable and all seemed fine > until I rebooted out of single user mode after doing make > installworld and mergemaster. At that point, near the > end of the boot sequence I got a core dump, apparently > triggered by devd. > > **** > Fatal trap 12: page fault while in kernel mode. > cpu id = 0; apic id = 00 > fault virtual address = 0x3030313a > fault code = supervisor write, page not present > [snip] > current process = 355 (devd) > **** At this point you will want to get a kernel dump and post its stack trace. 0x3030313a in ASCII is "001:", so some string probably overflowed a buffer. http://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug.html http://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug-gdb.html -- Dan Nelson dnelson@allantgroup.com
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