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Date:      Thu, 21 Aug 2003 12:13:19 -0400
From:      Mike Tancsa <mike@sentex.net>
To:        stable@freebsd.org
Subject:   Re: panic with today's stable (sort of resolved) PAE related ?
Message-ID:  <5.2.0.9.0.20030821115110.07f28e08@209.112.4.2>
In-Reply-To: <5.2.0.9.0.20030812161901.09b02558@209.112.4.2>

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OK, I cvsup'd back to August 7th (default date=2003.08.07.00.00.00), 
buildworld / kernel etc and the box has been stable for almost 24hrs 
now.  Prior to that, it would be rebooting a few times a day.

The panics would be like the one below. I also tried a stable up to the 
19th, but still panics.

Below are some more panics and some output tegge requested
-------------------------------------------------
(kgdb) bt
#0  dumpsys () at /usr/src/sys/kern/kern_shutdown.c:487
#1  0xc01618fc in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:316
#2  0xc0161d49 in panic (fmt=0xc02db8cc "%s") at 
/usr/src/sys/kern/kern_shutdown.c:595
#3  0xc028cb94 in trap_fatal (frame=0xe9cade3c, eva=16) at 
/usr/src/sys/i386/i386/trap.c:974
#4  0xc028c829 in trap_pfault (frame=0xe9cade3c, usermode=0, eva=16) at 
/usr/src/sys/i386/i386/trap.c:867
#5  0xc028c38f in trap (frame={tf_fs = 16, tf_es = 16, tf_ds = -372637680, 
tf_edi = 8, tf_esi = 1143, tf_ebp = -372580732,
       tf_isp = -372580760, tf_ebx = -366795420, tf_edx = -4, tf_ecx = 
93583622, tf_eax = 524281, tf_trapno = 12, tf_err = 0,
       tf_eip = -1071252840, tf_cs = 8, tf_eflags = 66182, tf_esp = 
-372353324, tf_ss = 1143}) at /usr/src/sys/i386/i386/trap.c:466
#6  0xc025fa98 in vm_page_lookup (object=0xea232564, pindex=1143) at 
/usr/src/sys/vm/vm_page.c:515
#7  0xc0257846 in vm_fault (map=0xea15b140, vaddr=148422656, fault_type=1 
'\001', fault_flags=0) at /usr/src/sys/vm/vm_fault.c:426
#8  0xc028c7bb in trap_pfault (frame=0xe9cadfa8, usermode=1, eva=148424256) 
at /usr/src/sys/i386/i386/trap.c:847
#9  0xc028c23b in trap (frame={tf_fs = -1078001617, tf_es = 142606383, 
tf_ds = -1078001617, tf_edi = 135422592,
       tf_esi = 141122551, tf_ebp = -1077937232, tf_isp = -372580396, 
tf_ebx = 672134608, tf_edx = 148424256, tf_ecx = 758396440,
       tf_eax = 148306460, tf_trapno = 12, tf_err = 4, tf_eip = 671848534, 
tf_cs = 31, tf_eflags = 66050, tf_esp = -1077937256,
       tf_ss = 47}) at /usr/src/sys/i386/i386/trap.c:377
#10 0x280b9856 in ?? ()
#11 0x280e61a6 in ?? ()
#12 0x280e6674 in ?? ()
#13 0x280e6568 in ?? ()
#14 0x280b780c in ?? ()
#15 0x2807ef5d in ?? ()
#16 0x280ea9ab in ?? ()
#17 0x8048e8b in ?? ()
#18 0x8048d5a in ?? ()
(kgdb) up 6
#6  0xc025fa98 in vm_page_lookup (object=0xea232564, pindex=1143) at 
/usr/src/sys/vm/vm_page.c:515
515             for (m = *bucket; m != NULL; m = m->hnext) {
(kgdb) print ((struct vm_page *) 0xc1331138)->object
$1 = 0xe991f284
(kgdb) print ((struct vm_page *) 0xc1331138)->object[0]
$2 = {object_list = {tqe_next = 0xe8eb7564, tqe_prev = 0xe9586e04}, 
shadow_head = {lh_first = 0x0}, shadow_list = {
     le_next = 0xe7fccbdc, le_prev = 0xe94bb234}, memq = {tqh_first = 
0xc0de94a0, tqh_last = 0xc1179770}, generation = 192,
   size = 74, ref_count = 1, shadow_count = 0, hash_rand = -441882534, type 
= 1 '\001', flags = 8576, pg_color = 22,
   paging_in_progress = 0, resident_page_count = 51, backing_object = 
0xe7fa233c, backing_object_offset = 0, pager_object_list = {
     tqe_next = 0xe825f000, tqe_prev = 0xe98818e8}, handle = 0x0, un_pager 
= {vnp = {vnp_size = 3}, devp = {devp_pglist = {
         tqh_first = 0x3, tqh_last = 0x0}}, swp = {swp_bcount = 3}}}
(kgdb) print ((struct vm_page *) 0xc1331138)->pindex
$3 = 61
(kgdb) print vm_page_hash_mask
$4 = 524287
(kgdb) print vm_page_buckets
$5 = (struct vm_page **) 0xc041d000
(kgdb) print vm_page_bucket_count
$6 = 524288
(kgdb) print vm_page_buckets + vm_page_bucket_count
$7 = (struct vm_page **) 0xc061d000
(kgdb) print vm_page_array
$8 = 0xc061d000
(kgdb) print vm_page_array_size
$9 = 261111
(kgdb) print vm_page_array + vm_page_array_size
$10 = (struct vm_page *) 0xc150dde4
(kgdb) print m
$11 = 0x0
(kgdb)


and

(kgdb) bt
#0  dumpsys () at /usr/src/sys/kern/kern_shutdown.c:487
#1  0xc01618fc in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:316
#2  0xc0161d49 in panic (fmt=0xc02db8cc "%s") at 
/usr/src/sys/kern/kern_shutdown.c:595
#3  0xc028cb94 in trap_fatal (frame=0xe85c0e3c, eva=12582934) at 
/usr/src/sys/i386/i386/trap.c:974
#4  0xc028c829 in trap_pfault (frame=0xe85c0e3c, usermode=0, eva=12582934) 
at /usr/src/sys/i386/i386/trap.c:867
#5  0xc028c38f in trap (frame={tf_fs = 16, tf_es = -390856688, tf_ds = 
-390856688, tf_edi = 134873088, tf_esi = 84,
       tf_ebp = -396620156, tf_isp = -396620184, tf_ebx = -400233508, 
tf_edx = 12582914, tf_ecx = 20568904, tf_eax = 524283,
       tf_trapno = 12, tf_err = 0, tf_eip = -1071252840, tf_cs = 8, 
tf_eflags = 66050, tf_esp = 0, tf_ss = -391880320})
     at /usr/src/sys/i386/i386/trap.c:466
#6  0xc025fa98 in vm_page_lookup (object=0xe824ebdc, pindex=84) at 
/usr/src/sys/vm/vm_page.c:515
#7  0xc02575ea in vm_fault (map=0xe8a46180, vaddr=134873088, fault_type=1 
'\001', fault_flags=0) at /usr/src/sys/vm/vm_fault.c:292
#8  0xc028c7bb in trap_pfault (frame=0xe85c0fa8, usermode=1, eva=134876672) 
at /usr/src/sys/i386/i386/trap.c:847
#9  0xc028c23b in trap (frame={tf_fs = 47, tf_es = 135004207, tf_ds = 
-1078001617, tf_edi = -1077936692, tf_esi = 672112688,
       tf_ebp = -1077936992, tf_isp = -396619820, tf_ebx = 672134608, 
tf_edx = 134621060, tf_ecx = 672140532, tf_eax = 134876672,
       tf_trapno = 12, tf_err = 4, tf_eip = 671837895, tf_cs = 31, 
tf_eflags = 66050, tf_esp = -1077937080, tf_ss = 47})
     at /usr/src/sys/i386/i386/trap.c:377
#10 0x280b6ec7 in ?? ()
#11 0x2807ef5d in ?? ()
#12 0x280ea9ab in ?? ()
#13 0x8048e8b in ?? ()
#14 0x8048d5a in ?? ()
(kgdb) up 6
#6  0xc025fa98 in vm_page_lookup (object=0xe824ebdc, pindex=84) at 
/usr/src/sys/vm/vm_page.c:515
515             for (m = *bucket; m != NULL; m = m->hnext) {
(kgdb) print ((struct vm_page *) 0xc1331138)->object
$1 = 0xc0318d6c
(kgdb) print ((struct vm_page *) 0xc1331138)->object[0]
$2 = {object_list = {tqe_next = 0xc0318e24, tqe_prev = 0xc0317f0c}, 
shadow_head = {lh_first = 0x0}, shadow_list = {le_next = 0x0,
     le_prev = 0xc0318c60}, memq = {tqh_first = 0xc0934a54, tqh_last = 
0xc08f37a4}, generation = 68154, size = 68091,
   ref_count = 1, shadow_count = 0, hash_rand = -170022, type = 1 '\001', 
flags = 8576, pg_color = 2, paging_in_progress = 0,
   resident_page_count = 68026, backing_object = 0x0, backing_object_offset 
= 0, pager_object_list = {tqe_next = 0xe7dfd8fc,
     tqe_prev = 0xc0318be8}, handle = 0x0, un_pager = {vnp = {vnp_size = 
5}, devp = {devp_pglist = {tqh_first = 0x5,
         tqh_last = 0x0}}, swp = {swp_bcount = 5}}}
(kgdb) print ((struct vm_page *) 0xc1331138)->pindex
$3 = 36689
(kgdb) print vm_page_hash_mask
$4 = 524287
(kgdb) print vm_page_buckets
$5 = (struct vm_page **) 0xc041d000
(kgdb) print vm_page_bucket_count
$6 = 524288
(kgdb) print vm_page_buckets + vm_page_bucket_count
$7 = (struct vm_page **) 0xc061d000
(kgdb) print vm_page_array
$8 = 0xc061d000
(kgdb) print vm_page_array_size
$9 = 261111
(kgdb) print vm_page_array + vm_page_array_size
$10 = (struct vm_page *) 0xc150dde4
(kgdb) print m
$11 = 0x0
(kgdb)


         ---Mike

ns4# cat /boot/loader.conf
# -- sysinstall generated deltas -- #
userconfig_script_load="YES"
hw.ata.wc="1"
hw.physmem="1020m"
ns4#

ns4# gdb -k /kernel.debug vmcore.3
GNU gdb 4.18 (FreeBSD)
Copyright 1998 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-unknown-freebsd"...Deprecated bfd_read 
called at 
/usr/src/gnu/usr.bin/binutils/gdb/../../../../contrib/gdb/gdb/dbxread.c 
line 2627 in elfstab_build_psymtabs
Deprecated bfd_read called at 
/usr/src/gnu/usr.bin/binutils/gdb/../../../../contrib/gdb/gdb/dbxread.c 
line 933 in fill_symbuf

IdlePTD at phsyical address 0x003ad000
initial pcb at physical address 0x0030cb40
panicstr: vm_page_remove(): page not found in hash
panic messages:
---
panic: vm_page_remove(): page not found in hash

syncing disks... 14
stray irq 7
2 2 2 2 2 2 2 7
done
Uptime: 14h21m23s
twe0: failed to delete unit 0


#0  dumpsys () at /usr/src/sys/kern/kern_shutdown.c:487
487             if (dumping++) {
(kgdb) bt
#0  dumpsys () at /usr/src/sys/kern/kern_shutdown.c:487
#1  0xc01618fc in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:316
#2  0xc0161d49 in panic (fmt=0xc02d2f60 "vm_page_remove(): page not found 
in hash") at /usr/src/sys/kern/kern_shutdown.c:595
#3  0xc025fa13 in vm_page_remove (m=0xc06b0378) at 
/usr/src/sys/vm/vm_page.c:461
#4  0xc02600ac in vm_page_free_toq (m=0xc06b0378) at 
/usr/src/sys/vm/vm_page.c:1104
#5  0xc025de22 in vm_object_terminate (object=0xe8712d4c) at 
/usr/src/sys/vm/vm_page.h:514
#6  0xc025dce0 in vm_object_deallocate (object=0xe8712d4c) at 
/usr/src/sys/vm/vm_object.c:399
#7  0xc025af21 in vm_map_entry_delete (map=0xe85ba100, entry=0xe8605780) at 
/usr/src/sys/vm/vm_map.c:2054
#8  0xc025b0d2 in vm_map_delete (map=0xe85ba100, start=0, end=3217031168) 
at /usr/src/sys/vm/vm_map.c:2174
#9  0xc025b161 in vm_map_remove (map=0xe85ba100, start=0, end=3217031168) 
at /usr/src/sys/vm/vm_map.c:2199
#10 0xc0159c3d in exit1 (p=0xe84fa8a0, rv=11) at 
/usr/src/sys/kern/kern_exit.c:226
#11 0xc01638bb in sigexit (p=0xe84fa8a0, sig=11) at 
/usr/src/sys/kern/kern_sig.c:1504
#12 0xc016362c in postsig (sig=11) at /usr/src/sys/kern/kern_sig.c:1407
#13 0xc028c5db in trap (frame={tf_fs = -1078001617, tf_es = -1078001617, 
tf_ds = -1078001617, tf_edi = 135456085,
       tf_esi = 135455758, tf_ebp = -1077948736, tf_isp = -397344812, 
tf_ebx = 135455744, tf_edx = 135455744, tf_ecx = 0,
       tf_eax = 0, tf_trapno = 12, tf_err = 0, tf_eip = 134919195, tf_cs = 
31, tf_eflags = 66195, tf_esp = -1077948744, tf_ss = 47})
     at /usr/src/sys/i386/i386/trap.c:174
#14 0x80ab41b in ?? ()
Cannot access memory at address 0xbfbfcec0.
(kgdb) up 5
#5  0xc025de22 in vm_object_terminate (object=0xe8712d4c) at 
/usr/src/sys/vm/vm_page.h:514
514             vm_page_free_toq(m);
(kgdb) print ((struct vm_page *) 0xc1331138)->object
$1 = 0x0
(kgdb) print ((struct vm_page *) 0xc1331138)->object[0]
Cannot access memory at address 0x0.
(kgdb) print ((struct vm_page *) 0xc1331138)->pindex
$2 = 74
(kgdb) print vm_page_hash_mask
$3 = 524287
(kgdb) print vm_page_buckets
$4 = (struct vm_page **) 0xc041d000
(kgdb) print vm_page_bucket_count
$5 = 524288
(kgdb) print vm_page_buckets + vm_page_bucket_count
$6 = (struct vm_page **) 0xc061d000
(kgdb) print vm_page_array
$7 = 0xc061d000
(kgdb) print vm_page_array_size
$8 = 261111
(kgdb) print vm_page_array + vm_page_array_size
$9 = (struct vm_page *) 0xc150dde4
(kgdb) print m
$10 = 0x0
(kgdb)


dmesg now looks like

ns4# dmesg
Copyright (c) 1992-2003 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
         The Regents of the University of California. All rights reserved.
FreeBSD 4.8-STABLE #0: Tue Aug 12 11:15:45 EDT 2003
     mdtancsa@ns4.recycle.net:/usr/obj/usr/src/sys/ns4
Timecounter "i8254"  frequency 1193182 Hz
Timecounter "TSC"  frequency 2398857928 Hz
CPU: Intel(R) Pentium(R) 4 CPU 2.40GHz (2398.86-MHz 686-class CPU)
   Origin = "GenuineIntel"  Id = 0xf27  Stepping = 7
   Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
real memory  = 1069547520 (1044480K bytes)
config> q
avail memory = 1037451264 (1013136K bytes)
Preloaded elf kernel "kernel" at 0xc038e000.
Preloaded userconfig_script "/boot/kernel.conf" at 0xc038e09c.
Pentium Pro MTRR support enabled
md0: Malloc disk
Using $PIR table, 7 entries at 0xc00fded0
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Host to PCI bridge> on motherboard
pci0: <PCI bus> on pcib0
agp0: <Intel 82845G (845G GMCH) SVGA controller> mem 
0xd8d00000-0xd8d7ffff,0xd0000000-0xd7ffffff irq 12 at device 2.0 on pci0
agp0: detected 892k stolen memory
agp0: aperture size is 128M
pcib1: <Intel 82801BA/BAM (ICH2) Hub to PCI bridge> at device 30.0 on pci0
pci1: <PCI bus> on pcib1
fxp0: <Intel 82557/8/9 EtherExpress Pro/100(B) Ethernet> port 0xc000-0xc01f 
mem 0xd8800000-0xd88fffff,0xd8c00000-0xd8c00fff irq 12 at device 0.0 on pci1
fxp0: Ethernet address 00:a0:c9:e7:a6:e6
inphy0: <i82555 10/100 media interface> on miibus0
inphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
fxp1: <Intel 82557/8/9 EtherExpress Pro/100(B) Ethernet> port 0xc400-0xc43f 
mem 0xd8a00000-0xd8afffff,0xd8b00000-0xd8b00fff irq 10 at device 1.0 on pci1
fxp1: Ethernet address 00:02:b3:07:fd:8d
inphy1: <i82555 10/100 media interface> on miibus1
inphy1:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
twe0: <3ware Storage Controller> port 0xc800-0xc80f irq 15 at device 5.0 on 
pci1
twe0: 2 ports, Firmware FE6X 1.02.00.029, BIOS BEXX 1.07.00.009
fxp2: <Intel 82801DB (ICH4) Pro/100 Ethernet> port 0xcc00-0xcc3f mem 
0xd8b01000-0xd8b01fff irq 11 at device 8.0 on pci1
fxp2: Ethernet address 00:01:80:38:46:36
inphy2: <i82562ET 10/100 media interface> on miibus2
inphy2:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
isab0: <PCI to ISA bridge (vendor=8086 device=24c0)> at device 31.0 on pci0
isa0: <ISA bus> on isab0
pci0: <unknown card> (vendor=0x8086, dev=0x24c3) at 31.3 irq 10
orm0: <Option ROMs> at iomem 
0xc0000-0xcafff,0xcc000-0xccfff,0xcd000-0xcdfff,0xce000-0xcf7ff on isa0
fdc0: ready for input in output
fdc0: cmd 3 failed at out byte 1 of 3
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x100>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A, console
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A
ipfw2 initialized, divert enabled, rule-based forwarding enabled, default 
to accept, logging limited to 33100 packets/entry by default
IPsec: Initialized Security Association Processing.
twed0: <Unit 0, TwinStor, Normal> on twe0
twed0: 76318MB (156299440 sectors)
Mounting root from ufs:/dev/twed0a
WARNING: / was not properly dismounted
ns4#






At 04:31 PM 12/08/2003 -0400, Mike Tancsa wrote:

>Did cvsup on a machine that does just mail processing (well, a lot of spam 
>scanning) and it crashed not too much later. This kernel does not include
>
>MFC src/sys/kern/sys_process.c revisions 1.111 and 1.112:
>   Use kmem_alloc_nofault() rather than kmem_alloc_pageable() in 
> procfs_rwmem().
>   Use vm_page_hold() in place of vm_page_wire() since the page can be freed.
>   Don't hold extra reference to the containing vm object while page is 
> mapped.
>
>which went in after I cvsup'd. Is there a change the crash is due to the 
>above ?  Hardware is pretty generic, we have the same configs on a number 
>of other boxes. I know there were quite a few VM changes as well as twe 
>changes since the late May kernel it was running prior to today.
>
>ns4# gdb -k /kernel.debug /var/crash/vmcore.1
>GNU gdb 4.18 (FreeBSD)
>Copyright 1998 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-unknown-freebsd"...Deprecated bfd_read 
>called at 
>/usr/src/gnu/usr.bin/binutils/gdb/../../../../contrib/gdb/gdb/dbxread.c 
>line 2627 in elfstab_build_psymtabs
>Deprecated bfd_read called at 
>/usr/src/gnu/usr.bin/binutils/gdb/../../../../contrib/gdb/gdb/dbxread.c 
>line 933 in fill_symbuf
>
>IdlePTD at phsyical address 0x003ad000
>initial pcb at physical address 0x0030cb40
>panicstr: page fault
>panic messages:
>---
>Fatal trap 12: page fault while in kernel mode
>fault virtual address   = 0xc408b0c8
>fault code              = supervisor read, page not present
>instruction pointer     = 0x8:0xc025fa19
>stack pointer           = 0x10:0xe8ba6e24
>frame pointer           = 0x10:0xe8ba6e28
>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         = 31044 (perl)
>interrupt mask          = net tty bio cam
>trap number             = 12
>panic: page fault
>
>syncing disks... 11 2 2 2 2 2 2 2 8
>done
>Uptime: 4h39m31s
>twe0: failed to delete unit 0
>
>dumping to dev #twed/1, offset 2176
>dump 1022 1021 1020 1019 1018 1017 1016 1015 1014 1013 1012 1011 1010 1009 
>1008 1007 1006 1005 1004 6 5 4 3 2 1 0
>---
>#0  dumpsys () at /usr/src/sys/kern/kern_shutdown.c:487
>487             if (dumping++) {
>(kgdb) bt
>#0  dumpsys () at /usr/src/sys/kern/kern_shutdown.c:487
>#1  0xc01618fc in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:316
>#2  0xc0161d49 in panic (fmt=0xc02db8cc "%s") at 
>/usr/src/sys/kern/kern_shutdown.c:595
>#3  0xc028cb94 in trap_fatal (frame=0xe8ba6de4, eva=3288903880) at 
>/usr/src/sys/i386/i386/trap.c:974
>#4  0xc028c829 in trap_pfault (frame=0xe8ba6de4, usermode=0, 
>eva=3288903880) at /usr/src/sys/i386/i386/trap.c:867
>#5  0xc028c38f in trap (frame={tf_fs = 16, tf_es = 16, tf_ds = 16, tf_edi 
>= 7314456, tf_esi = -386904664, tf_ebp = -390435288,
>       tf_isp = -390435312, tf_ebx = -1053617864, tf_edx = -1006063416, 
> tf_ecx = -386904664, tf_eax = -1006063424, tf_trapno = 12,
>       tf_err = 0, tf_eip = -1071252967, tf_cs = 8, tf_eflags = 66182, 
> tf_esp = -1053617864, tf_ss = -390435260})
>     at /usr/src/sys/i386/i386/trap.c:466
>#6  0xc025fa19 in vm_page_remove (m=0xc1331138) at 
>/usr/src/sys/vm/vm_page.c:462
>#7  0xc02600ac in vm_page_free_toq (m=0xc1331138) at 
>/usr/src/sys/vm/vm_page.c:1104
>#8  0xc025de22 in vm_object_terminate (object=0xe8f04da8) at 
>/usr/src/sys/vm/vm_page.h:514
>#9  0xc025dce0 in vm_object_deallocate (object=0xe8f04da8) at 
>/usr/src/sys/vm/vm_object.c:399
>#10 0xc025af21 in vm_map_entry_delete (map=0xe8b3e040, entry=0xe8906c60) 
>at /usr/src/sys/vm/vm_map.c:2054
>#11 0xc025b0d2 in vm_map_delete (map=0xe8b3e040, start=0, end=3217031168) 
>at /usr/src/sys/vm/vm_map.c:2174
>#12 0xc025b161 in vm_map_remove (map=0xe8b3e040, start=0, end=3217031168) 
>at /usr/src/sys/vm/vm_map.c:2199
>#13 0xc0159c3d in exit1 (p=0xe8a89ea0, rv=1054720) at 
>/usr/src/sys/kern/kern_exit.c:226
>#14 0xc0159a09 in sys_exit (p=0xe8a89ea0, uap=0xe8ba6f80) at 
>/usr/src/sys/kern/kern_exit.c:104
>#15 0xc028ce05 in syscall2 (frame={tf_fs = -1071185873, tf_es = 47, tf_ds 
>= 47, tf_edi = 0, tf_esi = -1, tf_ebp = -1077936848,
>       tf_isp = -390434860, tf_ebx = 672950156, tf_edx = 673025784, tf_ecx 
> = 5, tf_eax = 1, tf_trapno = 12, tf_err = 2,
>       tf_eip = 672622500, tf_cs = 31, tf_eflags = 647, tf_esp = 
> -1077936892, tf_ss = 47}) at /usr/src/sys/i386/i386/trap.c:1175
>#16 0xc027fb05 in Xint0x80_syscall ()
>Cannot access memory at address 0xbfbffd30.
>(kgdb)
>
>(kgdb) list
>482     dumpsys(void)
>483     {
>484             int     error;
>485
>486             savectx(&dumppcb);
>487             if (dumping++) {
>488                     printf("Dump already in progress, bailing...\n");
>489                     return;
>490             }
>491             if (!dodump)
>(kgdb) up
>#1  0xc01618fc in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:316
>316                     dumpsys();
>(kgdb) list
>311              * been completed.
>312              */
>313             EVENTHANDLER_INVOKE(shutdown_post_sync, howto);
>314             splhigh();
>315             if ((howto & (RB_HALT|RB_DUMP)) == RB_DUMP && !cold)
>316                     dumpsys();
>317
>318             /* Now that we're going to really halt the system... */
>319             EVENTHANDLER_INVOKE(shutdown_final, howto);
>320
>(kgdb) up
>#2  0xc0161d49 in panic (fmt=0xc02db8cc "%s") at 
>/usr/src/sys/kern/kern_shutdown.c:595
>595             boot(bootopt);
>(kgdb) list
>590
>591     #if defined(DDB)
>592             if (debugger_on_panic)
>593                     Debugger ("panic");
>594     #endif
>595             boot(bootopt);
>596     }
>597
>598     /*
>599      * Support for poweroff delay.
>(kgdb) up
>#3  0xc028cb94 in trap_fatal (frame=0xe8ba6de4, eva=3288903880) at 
>/usr/src/sys/i386/i386/trap.c:974
>974                     panic("%s", trap_msg[type]);
>(kgdb) list
>969             if ((debugger_on_panic || db_active) && kdb_trap(type, 0, 
>frame))
>970                     return;
>971     #endif
>972             printf("trap number             = %d\n", type);
>973             if (type <= MAX_TRAP_MSG)
>974                     panic("%s", trap_msg[type]);
>975             else
>976                     panic("unknown/reserved trap");
>977     }
>978
>(kgdb) up
>#4  0xc028c829 in trap_pfault (frame=0xe8ba6de4, usermode=0, 
>eva=3288903880) at /usr/src/sys/i386/i386/trap.c:867
>867                     trap_fatal(frame, eva);
>(kgdb) list
>862             if (!usermode) {
>863                     if (intr_nesting_level == 0 && curpcb && 
>curpcb->pcb_onfault) {
>864                             frame->tf_eip = (int)curpcb->pcb_onfault;
>865                             return (0);
>866                     }
>867                     trap_fatal(frame, eva);
>868                     return (-1);
>869             }
>870
>871             /* kludge to pass faulting virtual address to sendsig */
>(kgdb) up
>#5  0xc028c38f in trap (frame={tf_fs = 16, tf_es = 16, tf_ds = 16, tf_edi 
>= 7314456, tf_esi = -386904664, tf_ebp = -390435288,
>       tf_isp = -390435312, tf_ebx = -1053617864, tf_edx = -1006063416, 
> tf_ecx = -386904664, tf_eax = -1006063424, tf_trapno = 12,
>       tf_err = 0, tf_eip = -1071252967, tf_cs = 8, tf_eflags = 66182, 
> tf_esp = -1053617864, tf_ss = -390435260})
>     at /usr/src/sys/i386/i386/trap.c:466
>466                             (void) trap_pfault(&frame, FALSE, eva);
>(kgdb) list
>461     kernel_trap:
>462                     /* kernel trap */
>463
>464                     switch (type) {
>465                     case T_PAGEFLT:                 /* page fault */
>466                             (void) trap_pfault(&frame, FALSE, eva);
>467                             return;
>468
>469                     case T_DNA:
>470     #if NNPX > 0
>(kgdb) up
>#6  0xc025fa19 in vm_page_remove (m=0xc1331138) at 
>/usr/src/sys/vm/vm_page.c:462
>462                             bucket = &(*bucket)->hnext;
>(kgdb) list
>457
>458                     bucket = &vm_page_buckets[vm_page_hash(m->object, 
>m->pindex)];
>459                     while (*bucket != m) {
>460                             if (*bucket == NULL)
>461                                     panic("vm_page_remove(): page not 
>found in hash");
>462                             bucket = &(*bucket)->hnext;
>463                     }
>464                     *bucket = m->hnext;
>465                     m->hnext = NULL;
>466                     vm_page_bucket_generation++;
>(kgdb) up
>#7  0xc02600ac in vm_page_free_toq (m=0xc1331138) at 
>/usr/src/sys/vm/vm_page.c:1104
>1104            vm_page_remove(m);
>(kgdb) list
>1099             * callback routine until after we've put the page on the
>1100             * appropriate free queue.
>1101             */
>1102
>1103            vm_page_unqueue_nowakeup(m);
>1104            vm_page_remove(m);
>1105
>1106            /*
>1107             * If fictitious remove object association and
>1108             * return, otherwise delay object association removal.
>(kgdb)
>#8  0xc025de22 in vm_object_terminate (object=0xe8f04da8) at 
>/usr/src/sys/vm/vm_page.h:514
>514             vm_page_free_toq(m);
>(kgdb) list
>509     static __inline void
>510     vm_page_free(m)
>511             vm_page_t m;
>512     {
>513             vm_page_flag_clear(m, PG_ZERO);
>514             vm_page_free_toq(m);
>515     }
>516
>517     /*
>518      *      vm_page_free_zero:
>(kgdb) up
>#9  0xc025dce0 in vm_object_deallocate (object=0xe8f04da8) at 
>/usr/src/sys/vm/vm_object.c:399
>399                             vm_object_terminate(object);
>(kgdb) list
>394                      * Don't double-terminate, we could be in a 
>termination
>395                      * recursion due to the terminate having to sync data
>396                      * to disk.
>397                      */
>398                     if ((object->flags & OBJ_DEAD) == 0)
>399                             vm_object_terminate(object);
>400                     object = temp;
>401             }
>402     }
>403
>(kgdb) up
>#10 0xc025af21 in vm_map_entry_delete (map=0xe8b3e040, entry=0xe8906c60) 
>at /usr/src/sys/vm/vm_map.c:2054
>2054                    vm_object_deallocate(entry->object.vm_object);
>(kgdb) list
>2049    {
>2050            vm_map_entry_unlink(map, entry);
>2051            map->size -= entry->end - entry->start;
>2052
>2053            if ((entry->eflags & MAP_ENTRY_IS_SUB_MAP) == 0) {
>2054                    vm_object_deallocate(entry->object.vm_object);
>2055            }
>2056
>2057            vm_map_entry_dispose(map, entry);
>2058    }
>(kgdb) up
>#11 0xc025b0d2 in vm_map_delete (map=0xe8b3e040, start=0, end=3217031168) 
>at /usr/src/sys/vm/vm_map.c:2174
>2174                    vm_map_entry_delete(map, entry);
>(kgdb) list
>2169                     * Delete the entry (which may delete the object) 
>only after
>2170                     * removing all pmap entries pointing to its pages.
>2171                     * (Otherwise, its page frames may be reallocated, 
>and any
>2172                     * modify bits will be set in the wrong object!)
>2173                     */
>2174                    vm_map_entry_delete(map, entry);
>2175                    entry = next;
>2176            }
>2177            return (KERN_SUCCESS);
>2178    }
>(kgdb) up
>#12 0xc025b161 in vm_map_remove (map=0xe8b3e040, start=0, end=3217031168) 
>at /usr/src/sys/vm/vm_map.c:2199
>2199            result = vm_map_delete(map, start, end);
>(kgdb) list
>2194            if (map == kmem_map || map == mb_map)
>2195                    s = splvm();
>2196
>2197            vm_map_lock(map);
>2198            VM_MAP_RANGE_CHECK(map, start, end);
>2199            result = vm_map_delete(map, start, end);
>2200            vm_map_unlock(map);
>2201
>2202            if (map == kmem_map || map == mb_map)
>2203                    splx(s);
>(kgdb) up
>#13 0xc0159c3d in exit1 (p=0xe8a89ea0, rv=1054720) at 
>/usr/src/sys/kern/kern_exit.c:226
>226                     (void) vm_map_remove(&vm->vm_map, VM_MIN_ADDRESS,
>(kgdb) list
>221             if (--vm->vm_refcnt == 0) {
>222                     if (vm->vm_shm)
>223                             shmexit(p);
>224                     pmap_remove_pages(vmspace_pmap(vm), VM_MIN_ADDRESS,
>225                         VM_MAXUSER_ADDRESS);
>226                     (void) vm_map_remove(&vm->vm_map, VM_MIN_ADDRESS,
>227                         VM_MAXUSER_ADDRESS);
>228             }
>229
>230             if (SESS_LEADER(p)) {
>(kgdb) up
>#14 0xc0159a09 in sys_exit (p=0xe8a89ea0, uap=0xe8ba6f80) at 
>/usr/src/sys/kern/kern_exit.c:104
>104             exit1(p, W_EXITCODE(uap->rval, 0));
>(kgdb) list
>99              struct sys_exit_args /* {
>100                     int     rval;
>101             } */ *uap;
>102     {
>103
>104             exit1(p, W_EXITCODE(uap->rval, 0));
>105             /* NOTREACHED */
>106     }
>107
>108     /*
>(kgdb)
>
>ns4# cat /var/run/dmesg.boot
>Copyright (c) 1992-2003 The FreeBSD Project.
>Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
>         The Regents of the University of California. All rights reserved.
>FreeBSD 4.8-STABLE #0: Tue Aug 12 11:15:45 EDT 2003
>     mdtancsa@ns4.recycle.net:/usr/obj/usr/src/sys/ns4
>Timecounter "i8254"  frequency 1193182 Hz
>Timecounter "TSC"  frequency 2398856892 Hz
>CPU: Intel(R) Pentium(R) 4 CPU 2.40GHz (2398.86-MHz 686-class CPU)
>   Origin = "GenuineIntel"  Id = 0xf27  Stepping = 7
> 
>Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
>real memory  = 1072627712 (1047488K bytes)
>config> q
>avail memory = 1040453632 (1016068K bytes)
>Preloaded elf kernel "kernel" at 0xc038e000.
>Preloaded userconfig_script "/boot/kernel.conf" at 0xc038e09c.
>Pentium Pro MTRR support enabled
>md0: Malloc disk
>Using $PIR table, 7 entries at 0xc00fded0
>npx0: <math processor> on motherboard
>npx0: INT 16 interface
>pcib0: <Host to PCI bridge> on motherboard
>pci0: <PCI bus> on pcib0
>agp0: <Intel 82845G (845G GMCH) SVGA controller> mem 
>0xd8d00000-0xd8d7ffff,0xd0000000-0xd7ffffff irq 12 at device 2.0 on pci0
>agp0: detected 892k stolen memory
>agp0: aperture size is 128M
>pcib1: <Intel 82801BA/BAM (ICH2) Hub to PCI bridge> at device 30.0 on pci0
>pci1: <PCI bus> on pcib1
>fxp0: <Intel 82557/8/9 EtherExpress Pro/100(B) Ethernet> port 
>0xc000-0xc01f mem 0xd8800000-0xd88fffff,0xd8c00000-0xd8c00fff irq 12 at 
>device 0.0 on pci1
>fxp0: Ethernet address 00:a0:c9:e7:a6:e6
>inphy0: <i82555 10/100 media interface> on miibus0
>inphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
>fxp1: <Intel 82557/8/9 EtherExpress Pro/100(B) Ethernet> port 
>0xc400-0xc43f mem 0xd8a00000-0xd8afffff,0xd8b00000-0xd8b00fff irq 10 at 
>device 1.0 on pci1
>fxp1: Ethernet address 00:02:b3:07:fd:8d
>inphy1: <i82555 10/100 media interface> on miibus1
>inphy1:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
>twe0: <3ware Storage Controller> port 0xc800-0xc80f irq 15 at device 5.0 
>on pci1
>twe0: 2 ports, Firmware FE6X 1.02.00.029, BIOS BEXX 1.07.00.009
>fxp2: <Intel 82801DB (ICH4) Pro/100 Ethernet> port 0xcc00-0xcc3f mem 
>0xd8b01000-0xd8b01fff irq 11 at device 8.0 on pci1
>fxp2: Ethernet address 00:01:80:38:46:36
>inphy2: <i82562ET 10/100 media interface> on miibus2
>inphy2:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
>isab0: <PCI to ISA bridge (vendor=8086 device=24c0)> at device 31.0 on pci0
>isa0: <ISA bus> on isab0
>pci0: <unknown card> (vendor=0x8086, dev=0x24c3) at 31.3 irq 10
>orm0: <Option ROMs> at iomem 
>0xc0000-0xcafff,0xcc000-0xccfff,0xcd000-0xcdfff,0xce000-0xcf7ff on isa0
>fdc0: ready for input in output
>fdc0: cmd 3 failed at out byte 1 of 3
>atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
>vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
>sc0: <System console> at flags 0x100 on isa0
>sc0: VGA <16 virtual consoles, flags=0x100>
>sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
>sio0: type 16550A, console
>sio1 at port 0x2f8-0x2ff irq 3 on isa0
>sio1: type 16550A
>ipfw2 initialized, divert enabled, rule-based forwarding enabled, default 
>to accept, logging limited to 33100 packets/entry by default
>IPsec: Initialized Security Association Processing.
>twed0: <Unit 0, TwinStor, Normal> on twe0
>twed0: 76318MB (156299440 sectors)
>Mounting root from ufs:/dev/twed0a
>WARNING: / was not properly dismounted
>ns4#
>
>
>machine         i386
>cpu             I386_CPU
>cpu             I486_CPU
>cpu             I586_CPU
>cpu             I686_CPU
>ident           ns4
>maxusers        0
>makeoptions     DEBUG=-g                #Build kernel with gdb(1) debug 
>symbols
>options         INET                    #InterNETworking
>options         FFS                     #Berkeley Fast Filesystem
>options         FFS_ROOT                #FFS usable as root device [keep 
>this!]
>options         SOFTUPDATES             #Enable FFS soft updates support
>options         UFS_DIRHASH             #Improve performance on big 
>directories
>options         MFS                     #Memory Filesystem
>options         MD_ROOT                 #MD is a potential root device
>options         NFS                     #Network Filesystem
>options         NFS_ROOT                #NFS usable as root device, NFS 
>required
>options         CD9660                  #ISO 9660 Filesystem
>options         CD9660_ROOT             #CD-ROM usable as root, CD9660 
>required
>options         PROCFS                  #Process filesystem
>options         COMPAT_43               #Compatible with BSD 4.3 [KEEP THIS!]
>options         SCSI_DELAY=15000        #Delay (in ms) before probing SCSI
>options         UCONSOLE                #Allow users to grab the console
>options         USERCONFIG              #boot -c editor
>options         VISUAL_USERCONFIG       #visual boot -c editor
>options         KTRACE                  #ktrace(1) support
>options         SYSVSHM                 #SYSV-style shared memory
>options         SYSVMSG                 #SYSV-style message queues
>options         SYSVSEM                 #SYSV-style semaphores
>options         P1003_1B                #Posix P1003_1B real-time extensions
>options         _KPOSIX_PRIORITY_SCHEDULING
>options         ICMP_BANDLIM            #Rate limit bad replies
>options         KBD_INSTALL_CDEV        # install a CDEV entry in /dev
>                                         # output.  Adds ~128k to driver.
>                                         # output.  Adds ~215k to driver.
>device          isa
>device          pci
>device          fdc0    at isa? port IO_FD1 irq 6 drq 2
>device          fd0     at fdc0 drive 0
>device          ata
>device          atadisk                 # ATA disk drives
>device          atapicd                 # ATAPI CDROM drives
>options         ATA_STATIC_ID           #Static device numbering
>                                 # Allow ncr to attach legacy NCR devices when
>                                 # both sym and ncr are configured
>device          twe             # 3ware Escalade
>device          atkbdc0 at isa? port IO_KBD
>device          atkbd0  at atkbdc? irq 1 flags 0x1
>device          psm0    at atkbdc? irq 12
>device          vga0    at isa?
>pseudo-device   splash
>device          sc0     at isa? flags 0x100
>device          agp             # support several AGP chipsets
>device          npx0    at nexus? port IO_NPX irq 13
>device          card
>device          pcic0   at isa? irq 0 port 0x3e0 iomem 0xd0000
>device          pcic1   at isa? irq 0 port 0x3e2 iomem 0xd4000 disable
>device          sio0    at isa? port IO_COM1 flags 0x10 irq 4
>device          sio1    at isa? port IO_COM2 irq 3
>device          miibus          # MII bus support
>device          dc              # DEC/Intel 21143 and various workalikes
>device          fxp             # Intel EtherExpress PRO/100B (82557, 82558)
>device          rl              # RealTek 8129/8139
>device          sis             # Silicon Integrated Systems SiS 900/SiS 7016
>pseudo-device   loop            # Network loopback
>pseudo-device   ether           # Ethernet support
>pseudo-device   disc    1       # Kernel SLIP
>pseudo-device   ppp     1       # Kernel PPP
>pseudo-device   tun             # Packet tunnel.
>pseudo-device   pty             # Pseudo-ttys (telnet etc)
>pseudo-device   md              # Memory "disks"
>pseudo-device   gif             # IPv6 and IPv4 tunneling
>pseudo-device   faith   1       # IPv6-to-IPv4 relaying (translation)
>pseudo-device   bpf             #Berkeley packet filter
>options         NETGRAPH                #netgraph(4) system
>options         NETGRAPH_ASYNC
>options         NETGRAPH_BPF
>options         NETGRAPH_CISCO
>options         NETGRAPH_ECHO
>options         NETGRAPH_ETHER
>options         NETGRAPH_FRAME_RELAY
>options         NETGRAPH_HOLE
>options         NETGRAPH_IFACE
>options         NETGRAPH_KSOCKET
>options         NETGRAPH_L2TP
>options         NETGRAPH_LMI
>options         NETGRAPH_MPPC_ENCRYPTION
>options         NETGRAPH_ONE2MANY
>options         NETGRAPH_PPP
>options         NETGRAPH_PPPOE
>options         NETGRAPH_PPTPGRE
>options         NETGRAPH_RFC1490
>options         NETGRAPH_SOCKET
>options         NETGRAPH_TEE
>options         NETGRAPH_TTY
>options         NETGRAPH_UI
>options         NETGRAPH_VJC
>options         IPSEC                   #IP security
>options         IPSEC_ESP               #IP security (crypto; define w/ IPSEC)
>options         IPSEC_DEBUG             #debug for IP security
>options         IPFIREWALL              #firewall
>options         IPFW2           #firewall
>options         IPFIREWALL_VERBOSE      #enable logging to syslogd(8)
>options         IPFIREWALL_FORWARD      #enable transparent proxy support
>options         IPFIREWALL_VERBOSE_LIMIT=33100  #limit verbosity
>options         IPFIREWALL_DEFAULT_TO_ACCEPT    #allow everything by default
>options         IPV6FIREWALL            #firewall for IPv6
>options         IPV6FIREWALL_VERBOSE
>options         IPV6FIREWALL_VERBOSE_LIMIT=100
>options         IPDIVERT                #divert sockets
>options         DDB
>options         DDB_UNATTENDED
>options         BREAK_TO_DEBUGGER
>options         ALT_BREAK_TO_DEBUGGER
>--------------------------------------------------------------------
>Mike Tancsa,                                      tel +1 519 651 3400
>Sentex Communications,                            mike@sentex.net
>Providing Internet since 1994                    www.sentex.net
>Cambridge, Ontario Canada                         www.sentex.net/mike
>
>_______________________________________________
>freebsd-stable@freebsd.org mailing list
>http://lists.freebsd.org/mailman/listinfo/freebsd-stable
>To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"



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