panic: privileged instruction fault

[John Baldwin]

On Wednesday, June 25, 2014 3:11:10 am Ilmars Knipšis wrote:
> On 2014.06.23. 23:41, John Baldwin wrote:
> > On Tuesday, June 03, 2014 5:08:31 am Ilmars Knipšis wrote:
> >> Hello!
> >>
> >> This is binary install of FreeBSD 10 on Intel server board S1200 V3 RP
> >> with ZFS mirrored SSD disks for OS and ZFS RAID 10 with 4 HDD disks for
> >> data.
> >>
> >> I am getting the kernel panic at random time almost every day:
> >> panic: privileged instruction fault
> >> panic: general protection fault
> >> panic: vm_fault: fault on nofault entry, addr: fffffe046667d000
> >> panic: page fault
> >>
> >> Could it be faulty RAM ?
> >>
> >>
> >>
> >> Small extract from core.txt:
> >>
> >> FreeBSD xx.xxx.com 10.0-RELEASE FreeBSD 10.0-RELEASE #0 r260789: Thu Jan
> >> 16 22:34:59 UTC 2014 root at snap.freebsd.org:/usr/obj/usr/src/sys/GENERIC
> >> amd64
> >>
> >> Unread portion of the kernel message buffer:
> >> trap number             = 1
> >> panic: privileged instruction fault
> >> cpuid = 0
> >> KDB: stack backtrace:
> >> #0 0xffffffff808e7dd0 at kdb_backtrace+0x60
> >> #1 0xffffffff808af8b5 at panic+0x155
> >> #2 0xffffffff80c8e692 at trap_fatal+0x3a2
> >> #3 0xffffffff80c8e2cf at trap+0x7bf
> >> #4 0xffffffff80c75392 at calltrap+0x8
> >> #5 0xffffffff81853b3d at spa_sync+0x61d
> >> #6 0xffffffff8185c925 at txg_sync_thread+0x375
> >> #7 0xffffffff8088198a at fork_exit+0x9a
> >> #8 0xffffffff80c758ce at fork_trampoline+0xe
> >> Uptime: 13h55m6s
> >> Dumping 1059 out of 16299
> >> MB:..2%..11%..22%..31%..41%..52%..61%..71%..81%..91%
> >>
> >> Reading symbols from /boot/kernel/zfs.ko.symbols...done.
> >> Loaded symbols for /boot/kernel/zfs.ko.symbols
> >> Reading symbols from /boot/kernel/opensolaris.ko.symbols...done.
> >> Loaded symbols for /boot/kernel/opensolaris.ko.symbols
> >> Reading symbols from /boot/kernel/ums.ko.symbols...done.
> >> Loaded symbols for /boot/kernel/ums.ko.symbols
> >> Reading symbols from /boot/kernel/pflog.ko.symbols...done.
> >> Loaded symbols for /boot/kernel/pflog.ko.symbols
> >> Reading symbols from /boot/kernel/pf.ko.symbols...done.
> >> Loaded symbols for /boot/kernel/pf.ko.symbols
> >> Reading symbols from /boot/kernel/nullfs.ko.symbols...done.
> >> Loaded symbols for /boot/kernel/nullfs.ko.symbols
> >> Reading symbols from /boot/kernel/fdescfs.ko.symbols...done.
> >> Loaded symbols for /boot/kernel/fdescfs.ko.symbols
> >> #0  doadump (textdump=<value optimized out>) at pcpu.h:219
> >> 219     pcpu.h: No such file or directory.
> >>           in pcpu.h
> > Can you do 'x/i 0xffffffff81853b3d' in kgdb?  (Yes, it is quite possible 
this
> > is due to bad RAM)
> >
> I am not familiar with kgdb. Is that exactly syntax to use?

Yes.

-- 
John Baldwin