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Date: Wed, 17 Apr 2002 11:13:41 -0700 (PDT)
From: Paul Barnfather <plb@clanger9.org>
To: freebsd-gnats-submit@FreeBSD.org
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Subject: kern/37190: panic: page fault while in kernel mode when running portsdb (4.5-RELEASE)
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>Number:         37190
>Category:       kern
>Synopsis:       panic: page fault while in kernel mode when running portsdb (4.5-RELEASE)
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Apr 17 11:20:01 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     Paul Barnfather
>Release:        4.5-RELEASE
>Organization:
>Environment:
FreeBSD hosaka.straylight 4.5-RELEASE FreeBSD 4.5-RELEASE #3: Tue Apr 16 19:01:59 CEST 2002     root@hosaka.straylight:/usr/src/sys/compile/HOSAKA  i386

Unknown motherboard with Intel BX chipset, Celeron 300A running @450MHz, 128MB, IBM Deskstar 30GB on integrated IDE controller (UDMA33)

Softupdates enabled.

[plb@hosaka ~]# dmesg
Copyright (c) 1992-2002 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 4.5-RELEASE #3: Tue Apr 16 19:01:59 CEST 2002
    root@hosaka.straylight:/usr/src/sys/compile/HOSAKA
Timecounter "i8254"  frequency 1193182 Hz
CPU: Pentium II/Pentium II Xeon/Celeron (451.02-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x660  Stepping = 0
  Features=0x183f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR>
real memory  = 134217728 (131072K bytes)
avail memory = 125882368 (122932K bytes)
Preloaded elf kernel "kernel" at 0xc04a3000.
Pentium Pro MTRR support enabled
md0: Malloc disk
Using $PIR table, 7 entries at 0xc00fde10
apm0: <APM BIOS> on motherboard
apm: found APM BIOS v1.2, connected at v1.2
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Intel 82443BX (440 BX) host to PCI bridge> on motherboard
pci0: <PCI bus> on pcib0
pcib1: <Intel 82443BX (440 BX) PCI-PCI (AGP) bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib1
isab0: <Intel 82371AB PCI to ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel PIIX4 ATA33 controller> port 0xf000-0xf00f at device 7.1 on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
uhci0: <Intel 82371AB/EB (PIIX4) USB controller> port 0xd000-0xd01f irq 11 at device 7.2 on pci0
usb0: <Intel 82371AB/EB (PIIX4) USB controller> on uhci0
usb0: USB revision 1.0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
chip1: <Intel 82371AB Power management controller> port 0x5000-0x500f at device 7.3 on pci0
adv0: <AdvanSys ASC3030/50 SCSI controller> port 0xd400-0xd4ff mem 0xe7001000-0xe70010ff irq 10 at device 14.0 on pci0
adv0: AdvanSys Ultra SCSI Host Adapter, SCSI ID 7, queue depth 16
pci0: <ATI Mach64-GP graphics accelerator> at 16.0
rl0: <RealTek 8139 10/100BaseTX> port 0xdc00-0xdcff mem 0xe7002000-0xe70020ff irq 12 at device 18.0 on pci0
rl0: Ethernet address: 00:e0:7d:a8:25:e1
miibus0: <MII bus> on rl0
rlphy0: <RealTek internal media interface> on miibus0
rlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
rl1: <RealTek 8139 10/100BaseTX> port 0xe000-0xe0ff mem 0xe7003000-0xe70030ff irq 11 at device 20.0 on pci0
rl1: Ethernet address: 00:20:18:8b:56:6f
miibus1: <MII bus> on rl1
rlphy1: <RealTek internal media interface> on miibus1
rlphy1:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
orm0: <Option ROMs> at iomem 0xc0000-0xcbfff,0xcc000-0xcffff on isa0
fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0
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=0x300>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A
ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0
ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
plip0: <PLIP network interface> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
IP Filter: v3.4.20 initialized.  Default = block all, Logging = enabled
ad0: 29314MB <IBM-DTLA-307030> [59560/16/63] at ata0-master UDMA33
Waiting 15 seconds for SCSI devices to settle
sa0 at adv0 bus 0 target 2 lun 0
sa0: <EXABYTE EXB-85058SQANXR1 07J0> Removable Sequential Access SCSI-2 device
sa0: 5.000MB/s transfers (5.000MHz, offset 11)
Mounting root from ufs:/dev/ad0s1a
cd0 at adv0 bus 0 target 3 lun 0
cd0: <PLEXTOR CD-ROM PX-20TS 1.01> Removable CD-ROM SCSI-2 device
cd0: 5.000MB/s transfers (5.000MHz, offset 11)


>Description:
Machine crashes, reboots or panics when running `portsdb -Uu`. This is reproducible here. 

hosaka# gdb -k
GNU gdb 4.18
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".
(kgdb) symbol-file kernel.debug
Reading symbols from kernel.debug...done.
(kgdb) exec-file /usr/crash/kernel.0
(kgdb) core-file /usr/crash/vmcore.0
IdlePTD at phsyical address 0x004c2000
initial pcb at physical address 0x00404460
panicstr: page fault
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address   = 0x8b0a7408
fault code              = supervisor write, page not present
instruction pointer     = 0x8:0xc02ee5fd
stack pointer           = 0x10:0xc9514e80
frame pointer           = 0x10:0xc9514e88
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         = 34246 (sed)
interrupt mask          = net tty bio cam
trap number             = 12
panic: page fault

syncing disks... 55 1
done
Uptime: 5h37m31s

dumping to dev #ad/0x20001, offset 231488
dump ata0: resetting devices .. done
128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
---
#0  dumpsys () at ../../kern/kern_shutdown.c:474
474             if (dumping++) {
(kgdb) where
#0  dumpsys () at ../../kern/kern_shutdown.c:474
#1  0xc01cf233 in boot (howto=256) at ../../kern/kern_shutdown.c:313
#2  0xc01cf614 in poweroff_wait (junk=0xc03b26cc, howto=-1069866513)
    at ../../kern/kern_shutdown.c:582
#3  0xc0345772 in trap_fatal (frame=0xc9514e40, eva=2332718088)
    at ../../i386/i386/trap.c:956
#4  0xc0345445 in trap_pfault (frame=0xc9514e40, usermode=0, eva=2332718088)
    at ../../i386/i386/trap.c:849
#5  0xc034502f in trap (frame={tf_fs = -924188656, tf_es = 16973840,
      tf_ds = -923009008, tf_edi = 672051200, tf_esi = 0, tf_ebp = -917418360,
      tf_isp = -917418388, tf_ebx = -1064020764, tf_edx = 24,
      tf_ecx = -1064020764, tf_eax = -1064128344, tf_trapno = 12, tf_err = 2,
      tf_eip = -1070668291, tf_cs = 8, tf_eflags = 66054,
      tf_esp = -1064608284, tf_ss = 0}) at ../../i386/i386/trap.c:448
#6  0xc02ee5fd in vm_page_deactivate (m=0xc09454e4) at ../../vm/vm_page.c:1325
#7  0xc02e6ba6 in vm_fault (map=0xc9089640, vaddr=672051200,
    fault_type=3 '\003', fault_flags=8) at ../../vm/vm_fault.c:120
#8  0xc03453da in trap_pfault (frame=0xc9514fa8, usermode=1, eva=672051680)
    at ../../i386/i386/trap.c:829
#9  0xc0344f03 in trap (frame={tf_fs = 47, tf_es = 47, tf_ds = 47,
      tf_edi = 671578188, tf_esi = 672051680, tf_ebp = -1077937300,
      tf_isp = -917418028, tf_ebx = 671479724, tf_edx = 671494400,
      tf_ecx = 671429152, tf_eax = 671518720, tf_trapno = 12, tf_err = 7,
      tf_eip = 671429158, tf_cs = 31, tf_eflags = 66050, tf_esp = -1077950540,
      tf_ss = 47}) at ../../i386/i386/trap.c:359
#10 0x28053226 in ?? ()
#11 0x28050cfc in ?? ()
#12 0x2804f83b in ?? ()
(kgdb) up 9
#9  0xc0344f03 in trap (frame={tf_fs = 47, tf_es = 47, tf_ds = 47,
      tf_edi = 671578188, tf_esi = 672051680, tf_ebp = -1077937300,
      tf_isp = -917418028, tf_ebx = 671479724, tf_edx = 671494400,
      tf_ecx = 671429152, tf_eax = 671518720, tf_trapno = 12, tf_err = 7,
      tf_eip = 671429158, tf_cs = 31, tf_eflags = 66050, tf_esp = -1077950540,
      tf_ss = 47}) at ../../i386/i386/trap.c:359
359                             i = trap_pfault(&frame, TRUE, eva);
(kgdb) Quit

I am pretty clueless at this point: please let me know if there's any more peeking around needed!
>How-To-Repeat:
Run portsdb -Uu on my machine: sometimes it hangs, sometimes it reboots, sometimes it panics (heavy disk load? haven't seen it crash any other time...). 
>Fix:
Box was completely stable when running SCSI hard disks.
Problem only occurs since recent "upgrade" (gah!) to larger(, quieter, cooler, cheaper) IDE disk and during heavy disk I/O, therefore suspect ATA driver and/or IDE adapter/hardware.

Solution: throw IDE drive in bin & buy proper SCSI storage (but it would be real nice if I could fix it in the meantime...)
>Release-Note:
>Audit-Trail:
>Unformatted:

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