Date: Fri, 13 Jun 2008 21:59:08 +0100 From: Bruce Cran <bruce@cran.org.uk> To: Ryan Coleman <ryan.coleman@cwis.biz> Cc: freebsd-questions@freebsd.org Subject: Re: Intermittent -- yet regular -- v6.3 kernel panic Message-ID: <20080613215908.25d71e6e@tau> In-Reply-To: <4852CF49.2000304@cwis.biz> References: <4852CF49.2000304@cwis.biz>
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[-- Attachment #1 --] On Fri, 13 Jun 2008 14:49:29 -0500 Ryan Coleman <ryan.coleman@cwis.biz> wrote: > Jun 12 23:02:41 UnixBox2 kernel: Fatal trap 12: page fault while in > kernel mode > Jun 12 23:02:41 UnixBox2 kernel: cpuid = 1; apic id = 01 > Jun 12 23:02:41 UnixBox2 kernel: fault virtual address = 0x0 > Jun 12 23:02:41 UnixBox2 kernel: fault code = supervisor > read, page not present > Jun 12 23:02:41 UnixBox2 kernel: instruction pointer = 0x20:0x0 > Jun 12 23:02:41 UnixBox2 kernel: stack pointer = > 0x28:0xec0ea8e0 Jun 12 23:02:41 UnixBox2 kernel: frame > pointer = 0x28:0xec0ea8e4 Jun 12 23:02:41 UnixBox2 kernel: > code segment = base 0x0, limit 0xfffff, type 0x1b > Jun 12 23:02:41 UnixBox2 kernel: = DPL 0, pres 1, def32 1, gran 1 > Jun 12 23:02:41 UnixBox2 kernel: processor eflags = interrupt > enabled, resume, IOPL = 0 > Jun 12 23:02:41 UnixBox2 kernel: current process = 925 (cp) > Jun 12 23:02:41 UnixBox2 kernel: trap number = 12 > Jun 12 23:02:41 UnixBox2 kernel: panic: page fault > Jun 12 23:02:41 UnixBox2 kernel: cpuid = 1 > Jun 12 23:02:41 UnixBox2 kernel: Uptime: 1h21m59s > Jun 12 23:02:41 UnixBox2 kernel: Cannot dump. No dump device defined. > > > This is a regular occurrence, but varies by source. Brand new fBSD > 6.3 machine, what more information do I need to provide? To be of any use we need a backtrace. See http://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug.html for details. First you need to configure a dump device then when the system crashes a crash dump will be written to /var/crash by default. You then run kgdb on the file to get the backtrace. -- Bruce Cran [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFIUt+kn4uvqcJsLfgRAjX3AJ9nlV6dRofVMzKu4rYrtUAsB0X11ACfUfZv wduvrz9XeLZjiYMXbcruvSI= =Vce2 -----END PGP SIGNATURE-----help
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