Date: Fri, 30 Aug 2013 01:17:18 -0700 From: Patrick <gibblertron@gmail.com> To: freebsd-hackers@freebsd.org Subject: Re: Fatal trap 12 going from 8.2 to 8.4 with ZFS Message-ID: <CA%2BdWbmbHKqvR%2BAwVpKe1QPf6HzKj4dcx3j-sOGLThgo_9kQWXQ@mail.gmail.com> In-Reply-To: <521FBE05.6020007@FreeBSD.org> References: <CA%2BdWbmYhXubU23XY4vCvfYA4MNrEOCSGCDTm2s7wF_NB1pktOA@mail.gmail.com> <521FBE05.6020007@FreeBSD.org>
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On Thu, Aug 29, 2013 at 2:32 PM, Andriy Gapon <avg@freebsd.org> wrote: > on 29/08/2013 19:37 Patrick said the following: >> I've got a system running on a VPS that I'm trying to upgrade from 8.2 >> to 8.4. It has a ZFS root. After booting the new kernel, I get: >> >> Fatal trap 12: page fault while in kernel mode >> cpuid = 0; apic id = 00 >> fault virtual address = 0x40 >> fault code = supervisor read data, page not present >> instruction pointer = 0x20:0xffffffff810d7691 >> stack pointer = 0x28:0xffffff800001ba60 >> frame pointer = 0x28:0xffffff800001ba90 >> code segment = base 0x0, limit 0xfffff, type 0x1b >> = DPL 0, pres 1, long 1, def32 0, gran 1 >> processor eflags = interrupt enabled, resume, IOPL = 0 >> current process = 1 (kernel) >> trap number = 12 >> panic: page fault >> cpuid = 0 >> KDB: stack backtrace: >> #0 0xffffffff8066cb96 at kdb_backtrace+0x66 >> #1 0xffffffff8063925e at panic+0x1ce >> #2 0xffffffff809c21d0 at trap_fatal+0x290 >> #3 0xffffffff809c255e at trap_pfault+0x23e >> #4 0xffffffff809c2a2e at trap+0x3ce >> #5 0xffffffff809a9624 at calltrap+0x8 >> #6 0xffffffff810df517 at vdev_mirror_child_select+0x67 > > If possible, please run 'kgdb /path/to/8.4/kernel' and then in kgdb do 'list > *vdev_mirror_child_select+0x67' Hmmmm... (kgdb) list *vdev_mirror_child_select+0x67 No symbol table is loaded. Use the "file" command. Do I need to build the kernel from source myself? This kernel is what freebsd-update installed during part 1 of the upgrade. Patrick
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