Date: Mon, 30 Dec 1996 16:47:15 +0800 (CST) From: Antony <antony@turtle.ee.ncku.edu.tw> To: hackers@freefall.freebsd.org Subject: What is Fatal trap 12 ?? Message-ID: <199612300847.QAA15779@turtle.ee.ncku.edu.tw>
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I enabled KTRACE, DDB, DIAGNOSTIC , and modified some source file of /sys/netinent/ip_input.c, and in some place, it shows Dec 30 16:01:34 hawk /kernel: Fatal trap 12: page fault while in kernel mode Dec 30 16:01:34 hawk /kernel: fault virtual address = 0xf0a1a004 Dec 30 16:01:34 hawk /kernel: fault code = supervisor read, page not present Dec 30 16:01:34 hawk /kernel: instruction pointer = 0x8:0xf0a106b4 Dec 30 16:01:34 hawk /kernel: code segment = base 0x0, limit 0xfff f, type 0x1b Dec 30 16:01:34 hawk /kernel: = DPL 0, pres 1, def32 1, gran Dec 30 16:01:34 hawk /kernel: processor eflags = interrupt enabled, resume, IO L = 0 Dec 30 16:01:34 hawk /kernel: current process = Idle Dec 30 16:01:34 hawk /kernel: interrupt mask = Dec 30 16:01:34 hawk /kernel: Dec 30 16:01:35 hawk /kernel: Any idea about what the hell it is ? Antony
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