Date: Sun, 31 Jan 2010 08:34:05 GMT From: Andrei Moraru <matagou@gmail.com> To: freebsd-gnats-submit@FreeBSD.org Subject: i386/143396: panic: page fault Message-ID: <201001310834.o0V8Y5Tp060859@www.freebsd.org> Resent-Message-ID: <201001310840.o0V8e3cJ047203@freefall.freebsd.org>
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>Number: 143396
>Category: i386
>Synopsis: panic: page fault
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-i386
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sun Jan 31 08:40:03 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator: Andrei Moraru
>Release: 7.2
>Organization:
>Environment:
FreeBSD gw3.matrix.md 7.2-RELEASE FreeBSD 7.2-RELEASE #1: Thu Jan 21 23:39:15 EET 2010 matagou@gmail.com:/usr/obj/usr/src/sys/GWVPN.v2 i386
>Description:
I have installed curlftpfs from ports.
I have mounted fuse.ko module with kldload.
I have mounted ftp filesystem on /mnt/vs-hdd.
Then I am archiving with tar on mounted ftp volume.
The local machine has a kernel panic.
the output of:
gw3# kgdb kernel.debug /var/crash/vmcore.0
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:
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x0
fault code = supervisor write, page not present
instruction pointer = 0x20:0xc05e7486
stack pointer = 0x28:0xc23f9c04
frame pointer = 0x28:0xc23f9c40
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 36 (vnlru)
trap number = 12
panic: page fault
Uptime: 9d2h24m27s
Physical memory: 375 MB
Dumping 117 MB: 102 86 70 54 38 22 6
Reading symbols from /boot/kernel/acpi.ko...Reading symbols from /boot/kernel/acpi.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/acpi.ko
Reading symbols from /boot/kernel/if_tap.ko...Reading symbols from /boot/kernel/if_tap.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/if_tap.ko
Reading symbols from /boot/kernel/if_bridge.ko...Reading symbols from /boot/kernel/if_bridge.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/if_bridge.ko
Reading symbols from /boot/kernel/bridgestp.ko...Reading symbols from /boot/kernel/bridgestp.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/bridgestp.ko
Reading symbols from /usr/local/modules/fuse.ko...done.
Loaded symbols for /usr/local/modules/fuse.ko
#0 doadump () at pcpu.h:196
196 __asm __volatile("movl %%fs:0,%0" : "=r" (td));
>How-To-Repeat:
I have installed curlftpfs from ports.
I have mounted fuse.ko module with kldload.
I have mounted ftp filesystem on /mnt/vs-hdd.
Then I am archiving with tar on mounted ftp volume.
The local machine has a kernel panic.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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