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Date:      Sun, 5 Jul 2009 20:36:51 GMT
From:      Barbara <barbara.xxx1975@libero.it>
To:        freebsd-gnats-submit@FreeBSD.org
Subject:   misc/136363: panic: vm_fault: fault on nofault entry, addr: c1885000
Message-ID:  <200907052036.n65Kapoc079877@www.freebsd.org>
Resent-Message-ID: <200907052040.n65Ke2Rs083116@freefall.freebsd.org>

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>Number:         136363
>Category:       misc
>Synopsis:       panic: vm_fault: fault on nofault entry, addr: c1885000
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Jul 05 20:40:01 UTC 2009
>Closed-Date:
>Last-Modified:
>Originator:     Barbara
>Release:        7-STABLE
>Organization:
>Environment:
FreeBSD satanasso.local.net 7.2-STABLE FreeBSD 7.2-STABLE #1: Wed Jul  1 20:39:38 CEST 2009     root@satanasso.local.net:/usr/obj/usr/src/sys/SATANASSO  i386

>Description:
This looks somehow "similar" to me to what I had in kern/136120.
Could it be caused by vm.pmap.pg_ps_enabled="1" I recently added?


# kgdb kernel.debug /var/crash/vmcore.16
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: c1885000
cpuid = 0
Uptime: 2h20m4s
Physical memory: 2031 MB
Dumping 233 MB: 218 202 186 170 154 138 122 106 90 74 58 42 26 10

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/modules/nvidia.ko...done.
Loaded symbols for /boot/modules/nvidia.ko
Reading symbols from /boot/kernel/sem.ko...Reading symbols from /boot/kernel/sem.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/sem.ko
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/linprocfs.ko...Reading symbols from /boot/kernel/linprocfs.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/linprocfs.ko
Reading symbols from /boot/kernel/logo_saver.ko...Reading symbols from /boot/kernel/logo_saver.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/logo_saver.ko
#0  doadump () at pcpu.h:196
196		__asm __volatile("movl %%fs:0,%0" : "=r" (td));
(kgdb) bt 
#0  doadump () at pcpu.h:196
#1  0xc059bdd7 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:418
#2  0xc059c0ac in panic (fmt=Variable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:574
#3  0xc0789738 in vm_fault (map=0xc1871000, vaddr=3246936064, fault_type=1 '\001', fault_flags=0) at /usr/src/sys/vm/vm_fault.c:277
#4  0xc07dfebd in trap_pfault (frame=0xc5714c10, usermode=0, eva=3246940112) at /usr/src/sys/i386/i386/trap.c:840
#5  0xc07e08e9 in trap (frame=0xc5714c10) at /usr/src/sys/i386/i386/trap.c:529
#6  0xc07c5cab in calltrap () at /usr/src/sys/i386/i386/exception.s:166
#7  0xc0589c48 in free (addr=0xc6fdb1c0, mtp=0xc0867180) at vm_page.h:266
#8  0xc05d645b in writev (td=0xc5f06900, uap=0xc5714cfc) at /usr/src/sys/kern/sys_generic.c:389
#9  0xc07e0285 in syscall (frame=0xc5714d38) at /usr/src/sys/i386/i386/trap.c:1089
#10 0xc07c5d10 in Xint0x80_syscall () at /usr/src/sys/i386/i386/exception.s:262
#11 0x00000033 in ?? ()
Previous frame inner to this frame (corrupt stack?)
(kgdb) frame 7
#7  0xc0589c48 in free (addr=0xc6fdb1c0, mtp=0xc0867180) at vm_page.h:266
266		return (&vm_page_array[atop(pa) - first_page]);
(kgdb) frame 8
#8  0xc05d645b in writev (td=0xc5f06900, uap=0xc5714cfc) at /usr/src/sys/kern/sys_generic.c:389
389		free(auio, M_IOV);


>How-To-Repeat:

>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted:



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