PROBLEM: Kernel Crash - Machine Exception Interpretation?

From: John W. M. Stevens
Date: Sat May 28 2005 - 09:41:23 EST

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Summary: Kernel crashes aprox. every 36 hours.

Description: Machine locks up, or crashes way to often. The latest crash
produced log output that hinted at the problem, but I don't know
how to interpret what I'm seeing.

The crashes can be quite severe. The previous one wiped out my /usr
partition.

Keywords: Machine exception, hang, crash.

Kernel Version: Linux version 2.4.29 (root@morningstar)
(gcc version 2.95.4 20011002 (Debian prerelease))
#4 SMP Mon Mar 28 18:29:11 MST 2005

Oops: None. Usually, the machine simply hangs and has to be power
cycled. The latest crash gave me a few lines in the log:

May 27 21:42:06 morningstar kernel: CPU 1: Machine Check Exception: 0000000000000004
May 27 21:42:07 morningstar kernel: Bank 0: e200000000000175
May 27 21:42:07 morningstar kernel: Bank 2: b60020000000011a at 000000000bf16280May 27 21:42:07 morningstar kernel: Kernel panic: CPU context corrupt

Software:

Gnu C 2.95.4
Gnu make 3.80
util-linux 2.12
mount 2.12
modutils 2.4.26
e2fsprogs 1.35
PPP 2.4.2
Linux C Library 2.3.2
Dynamic linker (ldd) 2.3.2
Procps 3.2.1
Net-tools 1.60
Console-tools 0.2.3
Sh-utils 5.2.1

Processor Information:

processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 6
model name : AMD Athlon(tm) MP 2000+
stepping : 2
cpu MHz : 1666.771
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse syscall mp mmxext 3dnowext 3dnow
bogomips : 3329.22

processor : 1
vendor_id : AuthenticAMD
cpu family : 6
model : 6
model name : AMD Athlon(tm) Processor
stepping : 2
cpu MHz : 1666.771
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse syscall mp mmxext 3dnowext 3dnow
bogomips : 3329.22

Modules: None (I configured then static linked my own kernel).

Loaded Driver and Hardware Information:

0000-001f : dma1
0020-003f : pic1
0040-005f : timer
0060-006f : keyboard
0070-007f : rtc
0080-008f : dma page reg
00a0-00bf : pic2
00c0-00df : dma2
00f0-00ff : fpu
01f0-01f7 : ide0
02f8-02ff : serial(set)
03c0-03df : vga+
03f6-03f6 : ide0
03f8-03ff : serial(set)
0cf8-0cff : PCI conf1
1010-1013 : Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P] System Controller
2000-2fff : PCI Bus #02
2000-20ff : Adaptec AHA-2940U2/U2W
2400-24ff : PCI device 1317:8201 (Linksys)
2800-287f : Digital Equipment Corporation DECchip 21041 [Tulip Pass 3]
2800-287f : tulip
2880-28ff : 3Com Corporation 3c905C-TX/TX-M [Tornado]
2880-28ff : 02:08.0
2c00-2c3f : Ensoniq ES1371 [AudioPCI-97]
2c00-2c3f : es1371
f000-f00f : Advanced Micro Devices [AMD] AMD-768 [Opus] IDE
f000-f007 : ide0
f008-f00f : ide1

00000000-0009f7ff : System RAM
0009f800-0009ffff : reserved
000a0000-000bffff : Video RAM area
000c0000-000c7fff : Video ROM
000cc800-000ccfff : Extension ROM
000cd000-000d27ff : Extension ROM
000e0000-000effff : Extension ROM
000f0000-000fffff : System ROM
00100000-1feeffff : System RAM
00100000-002ef24e : Kernel code
002ef24f-003bc6e3 : Kernel data
1fef0000-1fefefff : ACPI Tables
1feff000-1fefffff : ACPI Non-volatile Storage
1ff00000-1ff7ffff : System RAM
1ff80000-1fffffff : reserved
e8000000-e8ffffff : PCI Bus #01
e8000000-e8ffffff : nVidia Corporation NV11 [GeForce2 MX/MX 400]
e9000000-e90fffff : PCI Bus #02
e9000000-e9000fff : Advanced Micro Devices [AMD] AMD-768 [Opus] USB
e9000000-e9000fff : usb-ohci
e9001000-e9001fff : Adaptec AHA-2940U2/U2W
e9001000-e9001fff : aic7xxx
e9002000-e900207f : Digital Equipment Corporation DECchip 21041 [Tulip Pass 3] e9002000-e900207f : tulip
e9002400-e90027ff : PCI device 1317:8201 (Linksys)
e9002800-e900287f : 3Com Corporation 3c905C-TX/TX-M [Tornado]
e9300000-e9300fff : Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P] System Controller
ec000000-efffffff : Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P] System Controller
f0000000-f7ffffff : PCI Bus #01
f0000000-f7ffffff : nVidia Corporation NV11 [GeForce2 MX/MX 400]
fec00000-fec03fff : reserved
fee00000-fee00fff : reserved
fff80000-ffffffff : reserved

PCI Information:

0000:00:00.0 Host bridge: Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P] System Controller (rev 11)
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR-
Latency: 64
Region 0: Memory at ec000000 (32-bit, prefetchable) [size=64M]
Region 1: Memory at e9300000 (32-bit, prefetchable) [size=4K]
Region 2: I/O ports at 1010 [disabled] [size=4]
Capabilities: [a0] AGP version 2.0
Status: RQ=16 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans- 64bit- FW- AGP3- Rate=x1,x2,x4
Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP+ GART64- 64bit- FW- Rate=x4
0000:00:01.0 PCI bridge: Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P] AGP Bridge (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 99
Bus: primary=00, secondary=01, subordinate=01, sec-latency=68
I/O behind bridge: 0000f000-00000fff
Memory behind bridge: e8000000-e8ffffff
Prefetchable memory behind bridge: f0000000-f7ffffff
BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B-

0000:00:07.0 ISA bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] ISA (rev 05)
Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 0

0000:00:07.1 IDE interface: Advanced Micro Devices [AMD] AMD-768 [Opus] IDE (rev 04) (prog-if 8a [Master SecP PriP])
Subsystem: Advanced Micro Devices [AMD] AMD-768 [Opus] IDE
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Region 4: I/O ports at f000 [size=16]

0000:00:07.3 Bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] ACPI (rev 03)
Subsystem: Advanced Micro Devices [AMD] AMD-768 [Opus] ACPI
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-

0000:00:10.0 PCI bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] PCI (rev 05) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR-
Latency: 64
Bus: primary=00, secondary=02, subordinate=02, sec-latency=168
I/O behind bridge: 00002000-00002fff
Memory behind bridge: e9000000-e90fffff
Prefetchable memory behind bridge: fff00000-000fffff
BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-

0000:01:05.0 VGA compatible controller: nVidia Corporation NV11 [GeForce2 MX/MX 400] (rev b2) (prog-if 00 [VGA])
Subsystem: VISIONTEK: Unknown device 0023
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 248 (1250ns min, 250ns max)
Interrupt: pin A routed to IRQ 18
Region 0: Memory at e8000000 (32-bit, non-prefetchable) [size=16M]
Region 1: Memory at f0000000 (32-bit, prefetchable) [size=128M]
Expansion ROM at <unassigned> [disabled] [size=64K]
Capabilities: [60] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [44] AGP version 2.0
Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA- ITACoh- GART64- HTrans- 64bit- FW+ AGP3- Rate=x1,x2,x4
Command: RQ=16 ArqSz=0 Cal=0 SBA- AGP+ GART64- 64bit- FW- Rate=x4

0000:02:00.0 USB Controller: Advanced Micro Devices [AMD] AMD-768 [Opus] USB (rev 07) (prog-if 10 [OHCI])
Subsystem: Advanced Micro Devices [AMD] AMD-768 [Opus] USB
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR+
Latency: 64 (20000ns max)
Interrupt: pin D routed to IRQ 19
Region 0: Memory at e9000000 (32-bit, non-prefetchable) [size=4K]

0000:02:04.0 SCSI storage controller: Adaptec AHA-2940U2/U2W
Subsystem: Adaptec AHA-2940U2W SCSI Controller
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 64 (9750ns min, 6250ns max), Cache Line Size: 0x10 (64 bytes)
Interrupt: pin A routed to IRQ 16
BIST result: 00
Region 0: I/O ports at 2000 [disabled] [size=256]
Region 1: Memory at e9001000 (64-bit, non-prefetchable) [size=4K]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: [dc] Power Management version 1
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

0000:02:05.0 Ethernet controller: Digital Equipment Corporation DECchip 21041 [Tulip Pass 3] (rev 21)
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 64
Interrupt: pin A routed to IRQ 17
Region 0: I/O ports at 2800 [size=128]
Region 1: Memory at e9002000 (32-bit, non-prefetchable) [size=128]
Expansion ROM at <unassigned> [disabled] [size=256K]

0000:02:06.0 Network controller: Linksys ADMtek ADM8211 802.11b Wireless Interface (rev 11)
Subsystem: D-Link System Inc: Unknown device 3503
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 64 (16000ns min, 32000ns max), Cache Line Size: 0x10 (64 bytes) Interrupt: pin A routed to IRQ 18
Region 0: I/O ports at 2400 [size=256]
Region 1: Memory at e9002400 (32-bit, non-prefetchable) [size=1K]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: [c0] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=100mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=2 PME-

0000:02:07.0 Multimedia audio controller: Ensoniq ES1371 [AudioPCI-97] (rev 08)
Subsystem: Ensoniq Creative Sound Blaster AudioPCI64V, AudioPCI128
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort+ <MAbort- >SERR- <PERR-
Latency: 64 (3000ns min, 32000ns max)
Interrupt: pin A routed to IRQ 19
Region 0: I/O ports at 2c00 [size=64]
Capabilities: [dc] Power Management version 1
Flags: PMEClk- DSI+ D1- D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

0000:02:08.0 Ethernet controller: 3Com Corporation 3c905C-TX/TX-M [Tornado] (rev 78)
Subsystem: Tyan Computer Tiger MPX S2466 (3C920 Integrated Fast Ethernet Controller)
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 80 (2500ns min, 2500ns max), Cache Line Size: 0x10 (64 bytes)
Interrupt: pin A routed to IRQ 19
Region 0: I/O ports at 2880 [size=128]
Region 1: Memory at e9002800 (32-bit, non-prefetchable) [size=128]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=2 PME-
SCSI Information:

Attached devices:
Host: scsi0 Channel: 00 Id: 08 Lun: 00
Vendor: SEAGATE Model: ST336607LW Rev: 0007
Type: Direct-Access ANSI SCSI revision: 03
Host: scsi0 Channel: 00 Id: 09 Lun: 00
Vendor: SEAGATE Model: ST336607LW Rev: 0007
Type: Direct-Access ANSI SCSI revision: 03
Host: scsi0 Channel: 00 Id: 10 Lun: 00
Vendor: SEAGATE Model: ST336607LW Rev: 0007
Type: Direct-Access ANSI SCSI revision: 03
Host: scsi1 Channel: 00 Id: 00 Lun: 00
Vendor: SAMSUNG Model: CD-R/RW SW-252B Rev: R701
Type: CD-ROM ANSI SCSI revision: 02

Memory: The memory in this box is ECC. Could this exception be tied to
a memory corruption detected by the ECC hardware?

Thanks,
John S.

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