Date: Tue, 13 May 2008 23:48:09 -0700 From: Jos Backus <jos@catnook.com> To: freebsd-current@freebsd.org Subject: panic: vm_fault: fault on nofault entry Message-ID: <20080514064809.GA1196@lizzy.catnook.local>
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I've been seeing the following panic for a few weeks now. It happens every
couple of days, sometimes perhaps a little more frequently.
lizzy:~/crash% uname -a
FreeBSD lizzy.catnook.local 8.0-CURRENT FreeBSD 8.0-CURRENT #0: Sun May 11
13:38:54 PDT 2008 root@lizzy.catnook.local:/usr/obj/usr/src/sys/LIZZY
i386
lizzy:~/crash% kgdb /usr/obj/usr/src/sys/LIZZY/kernel.debug vmcore.8
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i386-marcel-freebsd"...
Unread portion of the kernel message buffer:
panic: vm_fault: fault on nofault entry, addr: c29ec000
Uptime: 2d2h21m44s
Physical memory: 1527 MB
Dumping 201 MB: 186 170 154 138 122 106 90 74 58 42 26 10
Reading symbols from /boot/kernel/linprocfs.ko...Reading symbols from /boot/kernel/linprocfs.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/linprocfs.ko
Reading symbols from /boot/kernel/linux.ko...Reading symbols from /boot/kernel/linux.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/linux.ko
Reading symbols from /boot/kernel/if_nfe.ko...Reading symbols from /boot/kernel/if_nfe.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/if_nfe.ko
Reading symbols from /boot/kernel/miibus.ko...Reading symbols from /boot/kernel/miibus.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/miibus.ko
Reading symbols from /boot/kernel/sound.ko...Reading symbols from /boot/kernel/sound.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/sound.ko
Reading symbols from /boot/kernel/snd_ich.ko...Reading symbols from /boot/kernel/snd_ich.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/snd_ich.ko
Reading symbols from /boot/kernel/tmpfs.ko...Reading symbols from /boot/kernel/tmpfs.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/tmpfs.ko
Reading symbols from /boot/kernel/daemon_saver.ko...Reading symbols from /boot/kernel/daemon_saver.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/daemon_saver.ko
#0 doadump () at pcpu.h:196
196 pcpu.h: No such file or directory.
in pcpu.h
(kgdb) bt
#0 doadump () at pcpu.h:196
#1 0xc05486cf in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:418
#2 0xc0548947 in panic (fmt=Variable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:572
#3 0xc064bac8 in vm_fault (map=0xc1054000, vaddr=3265183744, fault_type=Variable "fault_type" is not available.
) at /usr/src/sys/vm/vm_fault.c:277
#4 0xc06a43b7 in trap_pfault (frame=0xe6e76a40, usermode=0, eva=3265183752) at /usr/src/sys/i386/i386/trap.c:796
#5 0xc06a4ce2 in trap (frame=0xe6e76a40) at /usr/src/sys/i386/i386/trap.c:485
#6 0xc068c51b in calltrap () at /usr/src/sys/i386/i386/exception.s:146
#7 0xc0662b52 in vm_reserv_alloc_page (object=0xc4e70d00, pindex=839369) at /usr/src/sys/vm/vm_reserv.c:320
#8 0xc065c24e in vm_page_alloc (object=0xc4e70d00, pindex=839369, req=64) at /usr/src/sys/vm/vm_page.c:1066
#9 0xc064c032 in vm_fault (map=0xc4cd3674, vaddr=912048128, fault_type=2 '\002', fault_flags=Variable "fault_flags" is not available.
) at /usr/src/sys/vm/vm_fault.c:441
#10 0xc06a4349 in trap_pfault (frame=0xe6e76d38, usermode=1, eva=912049792) at /usr/src/sys/i386/i386/trap.c:784
#11 0xc06a4b42 in trap (frame=0xe6e76d38) at /usr/src/sys/i386/i386/trap.c:352
#12 0xc068c51b in calltrap () at /usr/src/sys/i386/i386/exception.s:146
#13 0x28495b6e in ?? ()
Previous frame inner to this frame (corrupt stack?)
(kgdb)
Any idea what could be wrong?
--
Jos Backus
jos at catnook.com
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