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Reload this Page Bug#572201: linux-image-2.6.32-trunk-amd64: forcedeth driver hangs under heavy load

 
 
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Old 03-02-2010, 09:33 AM
stephen mulcahy
 
Default Bug#572201: linux-image-2.6.32-trunk-amd64: forcedeth driver hangs under heavy load
Package: linux-2.6
Version: 2.6.32-5
Severity: grave

When running linux-image-2.6.32-trunk-amd64, the network stops
responding if large amounts of traffic are transmitted/received. Running
ifdown eth0 followed by ifup eth0 restores operation of the network.
There are no errors relating to this failure logged in /var/log that I
could see.


Downgrading to linux-image-2.6.30-2-amd64 results in a stable network.
Not sure if this is a forcedeth specific problem or a general problem in
the newer kernel (I have seen problems with forcedeth on other
distro/kernel combinations).


Happy to run further diagnostics to tie this down if you let me know
what to run.



-- Package-specific info:
** Kernel log: boot messages should be attached

** Model information
sys_vendor: Supermicro
product_name: H8DMU
product_version: 1234567890
chassis_vendor: To Be Filled By O.E.M.
chassis_version: To Be Filled By O.E.M.
bios_vendor: American Megatrends Inc.
bios_version: 080014
board_vendor: Supermicro
board_name: H8DMU
board_version: 1234567890

** Network interface configuration:
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
allow-hotplug eth0
iface eth0 inet dhcp

** PCI devices:
00:00.0 RAM memory [0500]: nVidia Corporation MCP55 Memory Controller
[10de:0369] (rev a2)

Subsystem: Super Micro Computer Inc Device [15d9:1911]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-

Latency: 0
Capabilities: [44] HyperTransport: Slave or Primary Interface
Command: BaseUnitID=0 UnitCnt=15 MastHost- DefDir- DUL-
Link Control 0: CFlE+ CST- CFE- <LkFail- Init+ EOC- TXO- <CRCErr=3
IsocEn- LSEn+ ExtCTL- 64b-
Link Config 0: MLWI=16bit DwFcIn- MLWO=16bit DwFcOut- LWI=16bit
DwFcInEn- LWO=16bit DwFcOutEn-
Link Control 1: CFlE- CST- CFE- <LkFail+ Init- EOC+ TXO+ <CRCErr=0
IsocEn- LSEn- ExtCTL- 64b-
Link Config 1: MLWI=8bit DwFcIn- MLWO=8bit DwFcOut- LWI=8bit DwFcInEn-
LWO=8bit DwFcOutEn-

Revision ID: 1.03
Link Frequency 0: 1.0GHz
Link Error 0: <Prot- <Ovfl- <EOC- CTLTm-
Link Frequency Capability 0: 200MHz+ 300MHz+ 400MHz+ 500MHz+ 600MHz+
800MHz+ 1.0GHz+ 1.2GHz- 1.4GHz- 1.6GHz- Vend-

Feature Capability: IsocFC+ LDTSTOP+ CRCTM- ECTLT- 64bA- UIDRD-
Link Frequency 1: 200MHz
Link Error 1: <Prot- <Ovfl- <EOC- CTLTm-
Link Frequency Capability 1: 200MHz- 300MHz- 400MHz- 500MHz- 600MHz-
800MHz- 1.0GHz- 1.2GHz- 1.4GHz- 1.6GHz- Vend-
Error Handling: PFlE+ OFlE+ PFE- OFE- EOCFE- RFE- CRCFE- SERRFE- CF-
RE- PNFE- ONFE- EOCNFE- RNFE- CRCNFE- SERRNFE-

Prefetchable memory behind bridge Upper: 00-00
Bus Number: 00
Capabilities: [dc] HyperTransport: MSI Mapping Enable+ Fixed-
Mapping Address Base: 00000000fee00000

00:01.0 ISA bridge [0601]: nVidia Corporation MCP55 LPC Bridge
[10de:0364] (rev a3)

Subsystem: Super Micro Computer Inc Device [15d9:1911]
Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-

Latency: 0

00:01.1 SMBus [0c05]: nVidia Corporation MCP55 SMBus [10de:0368] (rev a3)
Subsystem: Super Micro Computer Inc Device [15d9:1911]
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-

Interrupt: pin A routed to IRQ 11
Region 0: I/O ports at dc00 [size=64]
Region 4: I/O ports at 2d00 [size=64]
Region 5: I/O ports at 2e00 [size=64]
Capabilities: [44] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: nForce2_smbus

00:02.0 USB Controller [0c03]: nVidia Corporation MCP55 USB Controller
[10de:036c] (rev a1) (prog-if 10 [OHCI])

Subsystem: Super Micro Computer Inc Device [15d9:1911]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-

Latency: 0 (750ns min, 250ns max)
Interrupt: pin A routed to IRQ 21
Region 0: Memory at feafb000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: ohci_hcd

00:02.1 USB Controller [0c03]: nVidia Corporation MCP55 USB Controller
[10de:036d] (rev a2) (prog-if 20 [EHCI])

Subsystem: Super Micro Computer Inc Device [15d9:1911]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-

Latency: 0 (750ns min, 250ns max)
Interrupt: pin B routed to IRQ 23
Region 0: Memory at feafac00 (32-bit, non-prefetchable) [size=256]
Capabilities: [44] Debug port: BAR=1 offset=0098
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: ehci_hcd

00:04.0 IDE interface [0101]: nVidia Corporation MCP55 IDE [10de:036e]
(rev a1) (prog-if 8a [Master SecP PriP])

Subsystem: Super Micro Computer Inc Device [15d9:1911]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-

Latency: 0 (750ns min, 250ns max)
Region 0: [virtual] Memory at 000001f0 (32-bit, non-prefetchable) [size=8]
Region 1: [virtual] Memory at 000003f0 (type 3, non-prefetchable) [size=1]
Region 2: [virtual] Memory at 00000170 (32-bit, non-prefetchable) [size=8]
Region 3: [virtual] Memory at 00000370 (type 3, non-prefetchable) [size=1]
Region 4: I/O ports at ffa0 [size=16]
Capabilities: [44] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: AMD_IDE

00:05.0 IDE interface [0101]: nVidia Corporation MCP55 SATA Controller
[10de:037f] (rev a3) (prog-if 85 [Master SecO PriO])

Subsystem: Super Micro Computer Inc Device [15d9:1911]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-

Latency: 0 (750ns min, 250ns max)
Interrupt: pin A routed to IRQ 20
Region 0: I/O ports at d480 [size=8]
Region 1: I/O ports at d400 [size=4]
Region 2: I/O ports at d080 [size=8]
Region 3: I/O ports at d000 [size=4]
Region 4: I/O ports at cc00 [size=16]
Region 5: Memory at feaf9000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [b0] MSI: Enable- Count=1/4 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Capabilities: [cc] HyperTransport: MSI Mapping Enable- Fixed+
Kernel driver in use: sata_nv

00:05.1 IDE interface [0101]: nVidia Corporation MCP55 SATA Controller
[10de:037f] (rev a3) (prog-if 85 [Master SecO PriO])

Subsystem: Super Micro Computer Inc Device [15d9:1911]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-

Latency: 0 (750ns min, 250ns max)
Interrupt: pin B routed to IRQ 22
Region 0: I/O ports at c880 [size=8]
Region 1: I/O ports at c800 [size=4]
Region 2: I/O ports at c480 [size=8]
Region 3: I/O ports at c400 [size=4]
Region 4: I/O ports at c080 [size=16]
Region 5: Memory at feaf8000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [b0] MSI: Enable- Count=1/4 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Capabilities: [cc] HyperTransport: MSI Mapping Enable- Fixed+
Kernel driver in use: sata_nv

00:05.2 IDE interface [0101]: nVidia Corporation MCP55 SATA Controller
[10de:037f] (rev a3) (prog-if 85 [Master SecO PriO])

Subsystem: Super Micro Computer Inc Device [15d9:1911]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-

Latency: 0 (750ns min, 250ns max)
Interrupt: pin C routed to IRQ 21
Region 0: I/O ports at c000 [size=8]
Region 1: I/O ports at bc00 [size=4]
Region 2: I/O ports at b880 [size=8]
Region 3: I/O ports at b800 [size=4]
Region 4: I/O ports at b480 [size=16]
Region 5: Memory at feaf7000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [b0] MSI: Enable- Count=1/4 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Capabilities: [cc] HyperTransport: MSI Mapping Enable- Fixed+
Kernel driver in use: sata_nv

00:06.0 PCI bridge [0604]: nVidia Corporation MCP55 PCI bridge
[10de:0370] (rev a2) (prog-if 01 [Subtractive decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-

Latency: 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=64
I/O behind bridge: 0000e000-0000efff
Memory behind bridge: feb00000-febfffff
Prefetchable memory behind bridge: f0000000-f7ffffff
Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- <SERR- <PERR-

BridgeCtl: Parity- SERR+ NoISA- VGA+ MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr+ DiscTmrStat- DiscTmrSERREn-
Capabilities: [b8] Subsystem: nVidia Corporation Device [10de:cb84]
Capabilities: [8c] HyperTransport: MSI Mapping Enable- Fixed-
Mapping Address Base: 00000000fee00000

00:08.0 Bridge [0680]: nVidia Corporation MCP55 Ethernet [10de:0373]
(rev a3)

Subsystem: Super Micro Computer Inc Device [15d9:1911]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-

Latency: 0 (250ns min, 5000ns max)
Interrupt: pin A routed to IRQ 30
Region 0: Memory at feaf6000 (32-bit, non-prefetchable) [size=4K]
Region 1: I/O ports at b400 [size=8]
Region 2: Memory at feafa800 (32-bit, non-prefetchable) [size=256]
Region 3: Memory at feafa400 (32-bit, non-prefetchable) [size=16]
Capabilities: [44] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable+ DSel=0 DScale=0 PME-
Capabilities: [70] MSI-X: Enable- Count=8 Masked-
Vector table: BAR=2 offset=00000000
PBA: BAR=3 offset=00000000
Capabilities: [50] MSI: Enable+ Count=1/8 Maskable+ 64bit+
Address: 00000000feeff00c Data: 4199
Masking: 000000fe Pending: 00000000
Capabilities: [6c] HyperTransport: MSI Mapping Enable- Fixed+
Kernel driver in use: forcedeth

00:09.0 Bridge [0680]: nVidia Corporation MCP55 Ethernet [10de:0373]
(rev a3)

Subsystem: Super Micro Computer Inc Device [15d9:1911]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-

Latency: 0 (250ns min, 5000ns max)
Interrupt: pin A routed to IRQ 23
Region 0: Memory at feaf5000 (32-bit, non-prefetchable) [size=4K]
Region 1: I/O ports at b080 [size=8]
Region 2: Memory at feafa000 (32-bit, non-prefetchable) [size=256]
Region 3: Memory at feaf4c00 (32-bit, non-prefetchable) [size=16]
Capabilities: [44] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [70] MSI-X: Enable- Count=8 Masked-
Vector table: BAR=2 offset=00000000
PBA: BAR=3 offset=00000000
Capabilities: [50] MSI: Enable- Count=1/8 Maskable+ 64bit+
Address: 0000000000000000 Data: 0000
Masking: 00000000 Pending: 00000000
Capabilities: [6c] HyperTransport: MSI Mapping Enable- Fixed+
Kernel driver in use: forcedeth

00:0a.0 PCI bridge [0604]: nVidia Corporation MCP55 PCI Express bridge
[10de:0376] (rev a3) (prog-if 00 [Normal decode])
Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-

Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- <SERR- <PERR-

BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [40] Subsystem: nVidia Corporation Device [10de:0000]
Capabilities: [48] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+
Address: 00000000feeff00c Data: 4149
Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed-
Mapping Address Base: 00000000fee00000
Capabilities: [80] Express (v1) Root Port (Slot+), MSI 00
DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
ExtTag- RBE+ FLReset-
DevCtl: Report errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
LnkCap: Port #5, Speed 2.5GT/s, Width x8, ASPM L0s L1, Latency L0
<512ns, L1 <4us

ClockPM- Surprise- LLActRep+ BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x8, TrErr- Train- SlotClk+ DLActive-
BWMgmt- ABWMgmt-

SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise-
Slot # 0, PowerLimit 0.000000; Interlock- NoCompl-
SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
Control: AttnInd Off, PwrInd On, Power- Interlock-
SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
Changed: MRL- PresDet+ LinkState-
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
RootCap: CRSVisible-
RootSta: PME ReqID 0000, PMEStatus- PMEPending-
Capabilities: [100 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntrySize=0
Arb: Fixed- WRR32- WRR64- WRR128- 100ns- - - onfig- TableOffset=0
Ctrl: ArbSelect=WRR32
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256- Fixed- RR32-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=ff
Status: NegoPending- InProgress-
Capabilities: [160 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF-
MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF-
MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+
MalfTLP+ ECRC- UnsupReq- ACSViol-

CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
Kernel driver in use: pcieport-driver

00:0b.0 PCI bridge [0604]: nVidia Corporation MCP55 PCI Express bridge
[10de:0374] (rev a3) (prog-if 00 [Normal decode])
Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-

Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- <SERR- <PERR-

BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [40] Subsystem: nVidia Corporation Device [10de:0000]
Capabilities: [48] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+
Address: 00000000feeff00c Data: 4151
Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed-
Mapping Address Base: 00000000fee00000
Capabilities: [80] Express (v1) Root Port (Slot+), MSI 00
DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
ExtTag- RBE+ FLReset-
DevCtl: Report errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
LnkCap: Port #4, Speed 2.5GT/s, Width x4, ASPM L0s L1, Latency L0
<512ns, L1 <4us

ClockPM- Surprise- LLActRep+ BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x4, TrErr- Train- SlotClk+ DLActive-
BWMgmt- ABWMgmt-

SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise-
Slot # 0, PowerLimit 0.000000; Interlock- NoCompl-
SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
Control: AttnInd Off, PwrInd On, Power- Interlock-
SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet- Interlock-
Changed: MRL- PresDet- LinkState-
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
RootCap: CRSVisible-
RootSta: PME ReqID 0000, PMEStatus- PMEPending-
Capabilities: [100 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntrySize=0
Arb: Fixed- WRR32- WRR64- WRR128- 100ns- - - onfig- TableOffset=0
Ctrl: ArbSelect=WRR32
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256- Fixed- RR32-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=ff
Status: NegoPending- InProgress-
Capabilities: [160 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF-
MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF-
MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+
MalfTLP+ ECRC- UnsupReq- ACSViol-

CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
Kernel driver in use: pcieport-driver

00:0c.0 PCI bridge [0604]: nVidia Corporation MCP55 PCI Express bridge
[10de:0374] (rev a3) (prog-if 00 [Normal decode])
Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-

Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- <SERR- <PERR-

BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [40] Subsystem: nVidia Corporation Device [10de:0000]
Capabilities: [48] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+
Address: 00000000feeff00c Data: 4159
Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed-
Mapping Address Base: 00000000fee00000
Capabilities: [80] Express (v1) Root Port (Slot+), MSI 00
DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
ExtTag- RBE+ FLReset-
DevCtl: Report errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
LnkCap: Port #3, Speed 2.5GT/s, Width x4, ASPM L0s L1, Latency L0
<512ns, L1 <4us

ClockPM- Surprise- LLActRep+ BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x4, TrErr- Train- SlotClk+ DLActive-
BWMgmt- ABWMgmt-

SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise-
Slot # 0, PowerLimit 0.000000; Interlock- NoCompl-
SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
Control: AttnInd Off, PwrInd On, Power- Interlock-
SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet- Interlock-
Changed: MRL- PresDet- LinkState-
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
RootCap: CRSVisible-
RootSta: PME ReqID 0000, PMEStatus- PMEPending-
Capabilities: [100 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntrySize=0
Arb: Fixed- WRR32- WRR64- WRR128- 100ns- - - onfig- TableOffset=0
Ctrl: ArbSelect=WRR32
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256- Fixed- RR32-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=ff
Status: NegoPending- InProgress-
Capabilities: [160 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF-
MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF-
MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+
MalfTLP+ ECRC- UnsupReq- ACSViol-

CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
Kernel driver in use: pcieport-driver

00:0d.0 PCI bridge [0604]: nVidia Corporation MCP55 PCI Express bridge
[10de:0378] (rev a3) (prog-if 00 [Normal decode])
Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-

Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=05, subordinate=05, sec-latency=0
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- <SERR- <PERR-

BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [40] Subsystem: nVidia Corporation Device [10de:0000]
Capabilities: [48] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+
Address: 00000000feeff00c Data: 4161
Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed-
Mapping Address Base: 00000000fee00000
Capabilities: [80] Express (v1) Root Port (Slot+), MSI 00
DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
ExtTag- RBE+ FLReset-
DevCtl: Report errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
LnkCap: Port #2, Speed 2.5GT/s, Width x4, ASPM L0s L1, Latency L0
<512ns, L1 <4us

ClockPM- Surprise- LLActRep+ BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x4, TrErr- Train- SlotClk+ DLActive-
BWMgmt- ABWMgmt-

SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise-
Slot # 0, PowerLimit 0.000000; Interlock- NoCompl-
SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
Control: AttnInd Off, PwrInd On, Power- Interlock-
SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
Changed: MRL- PresDet+ LinkState-
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
RootCap: CRSVisible-
RootSta: PME ReqID 0000, PMEStatus- PMEPending-
Capabilities: [100 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntrySize=0
Arb: Fixed- WRR32- WRR64- WRR128- 100ns- - - onfig- TableOffset=0
Ctrl: ArbSelect=WRR32
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256- Fixed- RR32-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=ff
Status: NegoPending- InProgress-
Capabilities: [160 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF-
MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF-
MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+
MalfTLP+ ECRC- UnsupReq- ACSViol-

CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
Kernel driver in use: pcieport-driver

00:0e.0 PCI bridge [0604]: nVidia Corporation MCP55 PCI Express bridge
[10de:0375] (rev a3) (prog-if 00 [Normal decode])
Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-

Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=06, subordinate=06, sec-latency=0
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- <SERR- <PERR-

BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [40] Subsystem: nVidia Corporation Device [10de:0000]
Capabilities: [48] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+
Address: 00000000feeff00c Data: 4169
Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed-
Mapping Address Base: 00000000fee00000
Capabilities: [80] Express (v1) Root Port (Slot+), MSI 00
DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
ExtTag- RBE+ FLReset-
DevCtl: Report errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
LnkCap: Port #1, Speed 2.5GT/s, Width x0, ASPM L0s L1, Latency L0
<512ns, L1 <4us

ClockPM- Surprise- LLActRep+ BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x8, TrErr- Train- SlotClk+ DLActive-
BWMgmt- ABWMgmt-

SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise-
Slot # 0, PowerLimit 0.000000; Interlock- NoCompl-
SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
Control: AttnInd Off, PwrInd On, Power- Interlock-
SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
Changed: MRL- PresDet+ LinkState-
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
RootCap: CRSVisible-
RootSta: PME ReqID 0000, PMEStatus- PMEPending-
Capabilities: [100 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntrySize=0
Arb: Fixed- WRR32- WRR64- WRR128- 100ns- - - onfig- TableOffset=0
Ctrl: ArbSelect=WRR32
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256- Fixed- RR32-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=ff
Status: NegoPending- InProgress-
Capabilities: [160 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF-
MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF-
MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+
MalfTLP+ ECRC- UnsupReq- ACSViol-

CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
Kernel driver in use: pcieport-driver

00:0f.0 PCI bridge [0604]: nVidia Corporation MCP55 PCI Express bridge
[10de:0377] (rev a3) (prog-if 00 [Normal decode])
Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-

Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=07, subordinate=07, sec-latency=0
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- <SERR- <PERR-

BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [40] Subsystem: nVidia Corporation Device [10de:0000]
Capabilities: [48] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+
Address: 00000000feeff00c Data: 4171
Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed-
Mapping Address Base: 00000000fee00000
Capabilities: [80] Express (v1) Root Port (Slot+), MSI 00
DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
ExtTag- RBE+ FLReset-
DevCtl: Report errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x8, ASPM L0s L1, Latency L0
<512ns, L1 <4us

ClockPM- Surprise- LLActRep+ BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x16, TrErr- Train- SlotClk+ DLActive-
BWMgmt- ABWMgmt-

SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise-
Slot # 0, PowerLimit 0.000000; Interlock- NoCompl-
SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
Control: AttnInd Off, PwrInd On, Power- Interlock-
SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
Changed: MRL- PresDet+ LinkState-
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
RootCap: CRSVisible-
RootSta: PME ReqID 0000, PMEStatus- PMEPending-
Capabilities: [100 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntrySize=0
Arb: Fixed- WRR32- WRR64- WRR128- 100ns- - - onfig- TableOffset=0
Ctrl: ArbSelect=WRR32
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256- Fixed- RR32-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=ff
Status: NegoPending- InProgress-
Capabilities: [160 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF-
MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF-
MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+
MalfTLP+ ECRC- UnsupReq- ACSViol-

CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
Kernel driver in use: pcieport-driver

00:18.0 Host bridge [0600]: Advanced Micro Devices [AMD] K10 [Opteron,
Athlon64, Sempron] HyperTransport Configuration [1022:1200]
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-

Capabilities: [80] HyperTransport: Host or Secondary Interface
Command: WarmRst+ DblEnd- DevNum=0 ChainSide- HostHide+ Slave-
<EOCErr- DUL-
Link Control: CFlE- CST- CFE- <LkFail- Init+ EOC- TXO- <CRCErr=0
IsocEn- LSEn+ ExtCTL- 64b-
Link Config: MLWI=16bit DwFcIn- MLWO=16bit DwFcOut- LWI=16bit
DwFcInEn- LWO=16bit DwFcOutEn-

Revision ID: 3.00
Link Frequency: 1.0GHz
Link Error: <Prot- <Ovfl- <EOC- CTLTm-
Link Frequency Capability: 200MHz+ 300MHz- 400MHz+ 500MHz- 600MHz+
800MHz+ 1.0GHz+ 1.2GHz- 1.4GHz- 1.6GHz- Vend-
Feature Capability: IsocFC+ LDTSTOP+ CRCTM- ECTLT- 64bA+ UIDRD- ExtRS-
UCnfE-

Capabilities: [a0] HyperTransport: Host or Secondary Interface
Command: WarmRst+ DblEnd- DevNum=0 ChainSide- HostHide+ Slave-
<EOCErr- DUL-
Link Control: CFlE- CST- CFE- <LkFail- Init+ EOC- TXO- <CRCErr=0
IsocEn- LSEn+ ExtCTL- 64b-
Link Config: MLWI=16bit DwFcIn- MLWO=16bit DwFcOut- LWI=16bit
DwFcInEn- LWO=16bit DwFcOutEn-

Revision ID: 3.00
Link Frequency: 1.0GHz
Link Error: <Prot- <Ovfl- <EOC- CTLTm-
Link Frequency Capability: 200MHz+ 300MHz- 400MHz+ 500MHz- 600MHz+
800MHz+ 1.0GHz+ 1.2GHz- 1.4GHz- 1.6GHz- Vend-
Feature Capability: IsocFC+ LDTSTOP+ CRCTM- ECTLT- 64bA+ UIDRD- ExtRS-
UCnfE-

Capabilities: [c0] HyperTransport: Host or Secondary Interface
Command: WarmRst+ DblEnd- DevNum=0 ChainSide- HostHide+ Slave-
<EOCErr- DUL-
Link Control: CFlE- CST- CFE- <LkFail- Init+ EOC- TXO- <CRCErr=0
IsocEn- LSEn+ ExtCTL- 64b-
Link Config: MLWI=16bit DwFcIn- MLWO=16bit DwFcOut- LWI=16bit
DwFcInEn- LWO=16bit DwFcOutEn-

Revision ID: 3.00
Link Frequency: 1.0GHz
Link Error: <Prot- <Ovfl- <EOC- CTLTm-
Link Frequency Capability: 200MHz+ 300MHz- 400MHz+ 500MHz- 600MHz+
800MHz+ 1.0GHz+ 1.2GHz- 1.4GHz- 1.6GHz- Vend-
Feature Capability: IsocFC+ LDTSTOP+ CRCTM- ECTLT- 64bA+ UIDRD- ExtRS-
UCnfE-


00:18.1 Host bridge [0600]: Advanced Micro Devices [AMD] K10 [Opteron,
Athlon64, Sempron] Address Map [1022:1201]
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-


00:18.2 Host bridge [0600]: Advanced Micro Devices [AMD] K10 [Opteron,
Athlon64, Sempron] DRAM Controller [1022:1202]
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-


00:18.3 Host bridge [0600]: Advanced Micro Devices [AMD] K10 [Opteron,
Athlon64, Sempron] Miscellaneous Control [1022:1203]
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-

Capabilities: [f0] Secure device <?>

00:18.4 Host bridge [0600]: Advanced Micro Devices [AMD] K10 [Opteron,
Athlon64, Sempron] Link Control [1022:1204]
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-


00:19.0 Host bridge [0600]: Advanced Micro Devices [AMD] K10 [Opteron,
Athlon64, Sempron] HyperTransport Configuration [1022:1200]
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-

Capabilities: [80] HyperTransport: Host or Secondary Interface
Command: WarmRst+ DblEnd- DevNum=0 ChainSide- HostHide+ Slave-
<EOCErr- DUL-
Link Control: CFlE- CST- CFE- <LkFail- Init+ EOC- TXO- <CRCErr=0
IsocEn- LSEn+ ExtCTL- 64b-
Link Config: MLWI=16bit DwFcIn- MLWO=16bit DwFcOut- LWI=16bit
DwFcInEn- LWO=16bit DwFcOutEn-

Revision ID: 3.00
Link Frequency: 1.0GHz
Link Error: <Prot- <Ovfl- <EOC- CTLTm-
Link Frequency Capability: 200MHz+ 300MHz- 400MHz+ 500MHz- 600MHz+
800MHz+ 1.0GHz+ 1.2GHz- 1.4GHz- 1.6GHz- Vend-
Feature Capability: IsocFC+ LDTSTOP+ CRCTM- ECTLT- 64bA+ UIDRD- ExtRS-
UCnfE-

Capabilities: [a0] HyperTransport: Host or Secondary Interface
Command: WarmRst+ DblEnd- DevNum=0 ChainSide- HostHide+ Slave-
<EOCErr- DUL-
Link Control: CFlE- CST- CFE- <LkFail- Init+ EOC- TXO- <CRCErr=0
IsocEn- LSEn+ ExtCTL- 64b-
Link Config: MLWI=16bit DwFcIn- MLWO=16bit DwFcOut- LWI=16bit
DwFcInEn- LWO=16bit DwFcOutEn-

Revision ID: 3.00
Link Frequency: 1.0GHz
Link Error: <Prot- <Ovfl- <EOC- CTLTm-
Link Frequency Capability: 200MHz+ 300MHz- 400MHz+ 500MHz- 600MHz+
800MHz+ 1.0GHz+ 1.2GHz- 1.4GHz- 1.6GHz- Vend-
Feature Capability: IsocFC+ LDTSTOP+ CRCTM- ECTLT- 64bA+ UIDRD- ExtRS-
UCnfE-

Capabilities: [c0] HyperTransport: Host or Secondary Interface
Command: WarmRst+ DblEnd- DevNum=0 ChainSide- HostHide+ Slave-
<EOCErr- DUL-
Link Control: CFlE- CST- CFE- <LkFail- Init- EOC+ TXO+ <CRCErr=0
IsocEn- LSEn- ExtCTL- 64b-
Link Config: MLWI=16bit DwFcIn- MLWO=16bit DwFcOut- LWI=N/C DwFcInEn-
LWO=N/C DwFcOutEn-

Revision ID: 3.00
Link Frequency: 200MHz
Link Error: <Prot- <Ovfl- <EOC- CTLTm-
Link Frequency Capability: 200MHz+ 300MHz- 400MHz+ 500MHz- 600MHz+
800MHz+ 1.0GHz+ 1.2GHz- 1.4GHz- 1.6GHz- Vend-
Feature Capability: IsocFC+ LDTSTOP+ CRCTM- ECTLT- 64bA+ UIDRD- ExtRS-
UCnfE-


00:19.1 Host bridge [0600]: Advanced Micro Devices [AMD] K10 [Opteron,
Athlon64, Sempron] Address Map [1022:1201]
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-


00:19.2 Host bridge [0600]: Advanced Micro Devices [AMD] K10 [Opteron,
Athlon64, Sempron] DRAM Controller [1022:1202]
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-


00:19.3 Host bridge [0600]: Advanced Micro Devices [AMD] K10 [Opteron,
Athlon64, Sempron] Miscellaneous Control [1022:1203]
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-

Capabilities: [f0] Secure device <?>

00:19.4 Host bridge [0600]: Advanced Micro Devices [AMD] K10 [Opteron,
Athlon64, Sempron] Link Control [1022:1204]
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-


01:05.0 VGA compatible controller [0300]: ATI Technologies Inc ES1000
[1002:515e] (rev 02) (prog-if 00 [VGA controller])

Subsystem: Super Micro Computer Inc Device [15d9:1911]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping+ SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-

Latency: 64 (2000ns min), Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 10
Region 0: Memory at f0000000 (32-bit, prefetchable) [size=128M]
Region 1: I/O ports at e000 [size=256]
Region 2: Memory at febf0000 (32-bit, non-prefetchable) [size=64K]
Expansion ROM at feb00000 [disabled] [size=128K]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-


** USB devices:
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 14dd:0002 Raritan Computer, Inc.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


-- System Information:
Debian Release: squeeze/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.30-2-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_IE.UTF-8, LC_CTYPE=en_IE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages linux-image-2.6.32-trunk-amd64 depends on:
ii debconf [debconf-2.0] 1.5.28 Debian configuration
management sy
ii initramfs-tools [linux-initr 0.93.4 tools for generating an
initramfs
ii module-init-tools 3.12~pre1-1 tools for managing Linux
kernel mo


Versions of packages linux-image-2.6.32-trunk-amd64 recommends:
ii firmware-linux-free 2.6.32-5 Binary firmware for various
driver


Versions of packages linux-image-2.6.32-trunk-amd64 suggests:
pn grub | lilo <none> (no description available)
pn linux-doc-2.6.32 <none> (no description available)

Versions of packages linux-image-2.6.32-trunk-amd64 is related to:
pn firmware-bnx2 <none> (no description available)
pn firmware-bnx2x <none> (no description available)
pn firmware-ipw2x00 <none> (no description available)
pn firmware-ivtv <none> (no description available)
pn firmware-iwlwifi <none> (no description available)
pn firmware-linux <none> (no description available)
pn firmware-linux-nonfree <none> (no description available)
pn firmware-qlogic <none> (no description available)
pn firmware-ralink <none> (no description available)

-- debconf information:

linux-image-2.6.32-trunk-amd64/postinst/bootloader-error-2.6.32-trunk-amd64:
shared/kernel-image/really-run-bootloader: true

linux-image-2.6.32-trunk-amd64/postinst/depmod-error-initrd-2.6.32-trunk-amd64:
false


linux-image-2.6.32-trunk-amd64/prerm/removing-running-kernel-2.6.32-trunk-amd64:
true


linux-image-2.6.32-trunk-amd64/postinst/bootloader-test-error-2.6.32-trunk-amd64:

linux-image-2.6.32-trunk-amd64/postinst/missing-firmware-2.6.32-trunk-amd64:

linux-image-2.6.32-trunk-amd64/prerm/would-invalidate-boot-loader-2.6.32-trunk-amd64:
true


--
Stephen Mulcahy, DI2, Digital Enterprise Research Institute,
NUI Galway, IDA Business Park, Lower Dangan, Galway, Ireland
http://di2.deri.ie http://webstar.deri.ie http://sindice.com



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Old 03-05-2010, 02:54 AM
Ben Hutchings
 
Default Bug#572201: linux-image-2.6.32-trunk-amd64: forcedeth driver hangs under heavy load
On Tue, 2010-03-02 at 10:33 +0000, stephen mulcahy wrote:
> Package: linux-2.6
> Version: 2.6.32-5
> Severity: grave
>
> When running linux-image-2.6.32-trunk-amd64, the network stops
> responding if large amounts of traffic are transmitted/received. Running
> ifdown eth0 followed by ifup eth0 restores operation of the network.
> There are no errors relating to this failure logged in /var/log that I
> could see.

There is a 'TX watchdog' that will log a warning if a network device
stops transmitting and the driver has not reported that the link is
down. If you do not see such a warning in the log then the problem may
lie outside this driver.

What protocol(s) are you using when this occurs?

> Downgrading to linux-image-2.6.30-2-amd64 results in a stable network.
> Not sure if this is a forcedeth specific problem or a general problem in
> the newer kernel (I have seen problems with forcedeth on other
> distro/kernel combinations).

I don't believe this is a general problem.

> Happy to run further diagnostics to tie this down if you let me know
> what to run.

We'll want to see the kernel log (output from dmesg) after this happens,
even if you can't spot anything in it.

The device statistics (output from ethtool -S eth0) might also be
informative.

Ben.

--
Ben Hutchings
Q. Which is the greater problem in the world today, ignorance or apathy?
A. I don't know and I couldn't care less.
 
Old 03-08-2010, 02:41 PM
stephen mulcahy
 
Default Bug#572201: linux-image-2.6.32-trunk-amd64: forcedeth driver hangs under heavy load
Ben Hutchings wrote:

What protocol(s) are you using when this occurs?


I was running the Hadoop application (http://hadoop.apache.org/) which
uses TCP as far as I know.


I just tried to reproduce the problem using iperf but have sent GBs
between two machines running 2.6.32 without seeing any problems. Will
try running Hadoop across all my systems, with only 2 running 2.6.32 and
see if I can replicate the problem. Otherwise will roll them all back to
2.6.32 and work from there.


Happy to run further diagnostics to tie this down if you let me know
what to run.


We'll want to see the kernel log (output from dmesg) after this happens,
even if you can't spot anything in it.

The device statistics (output from ethtool -S eth0) might also be
informative.


Ok, will post both of those when I manage to reproduce the problem again.

-stephen

--
Stephen Mulcahy, DI2, Digital Enterprise Research Institute,
NUI Galway, IDA Business Park, Lower Dangan, Galway, Ireland
http://di2.deri.ie http://webstar.deri.ie http://sindice.com



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Old 03-09-2010, 08:41 AM
stephen mulcahy
 
Default Bug#572201: linux-image-2.6.32-trunk-amd64: forcedeth driver hangs under heavy load
So I changed all 45 nodes in the cluster back to the 2.6.32 kernel and
restarted a test job. After 15-20 minutes, some of the nodes had dropped
out - responding still to pings, but impossible to ssh to them.

Output from one node as follows (after connecting to console),

Ben Hutchings wrote:

We'll want to see the kernel log (output from dmesg) after this happens,
even if you can't spot anything in it.


The problem first started at 08:56 - as you can see the last messages in
/var/log/kern.log are from 08:31 (just after booting) - the output from
dmesg is identical


Mar 9 08:31:11 node20 kernel: [ 9.102710] sdc1
Mar 9 08:31:11 node20 kernel: [ 9.102890] sd 2:0:0:0: [sdc] Attached
SCSI disk

Mar 9 08:31:11 node20 kernel: [ 9.104582] sda1 sda2 < sda5 sda6 >
Mar 9 08:31:11 node20 kernel: [ 9.131101] sd 0:0:0:0: [sda] Attached
SCSI disk
Mar 9 08:31:11 node20 kernel: [ 9.133794] sd 0:0:0:0: Attached scsi
generic sg0 type 0
Mar 9 08:31:11 node20 kernel: [ 9.133824] sd 1:0:0:0: Attached scsi
generic sg1 type 0
Mar 9 08:31:11 node20 kernel: [ 9.133849] sd 2:0:0:0: Attached scsi
generic sg2 type 0
Mar 9 08:31:11 node20 kernel: [ 9.133875] sd 3:0:0:0: Attached scsi
generic sg3 type 0
Mar 9 08:31:11 node20 kernel: [ 9.133970] sr 4:0:0:0: Attached scsi
generic sg4 type 5
Mar 9 08:31:11 node20 kernel: [ 9.324705] PM: Starting manual resume
from disk
Mar 9 08:31:11 node20 kernel: [ 9.339131] EXT4-fs (sda1): INFO:
recovery required on readonly filesystem
Mar 9 08:31:11 node20 kernel: [ 9.339135] EXT4-fs (sda1): write
access will be enabled during recovery
Mar 9 08:31:11 node20 kernel: [ 10.429924] EXT4-fs (sda1): recovery
complete
Mar 9 08:31:11 node20 kernel: [ 10.430834] EXT4-fs (sda1): mounted
filesystem with ordered data mode

Mar 9 08:31:11 node20 kernel: [ 11.227223] udev: starting version 151
Mar 9 08:31:11 node20 kernel: [ 11.447716] processor LNXCPU:00:
registered as cooling_device0
Mar 9 08:31:11 node20 kernel: [ 11.448024] processor LNXCPU:01:
registered as cooling_device1
Mar 9 08:31:11 node20 kernel: [ 11.448329] processor LNXCPU:02:
registered as cooling_device2
Mar 9 08:31:11 node20 kernel: [ 11.448646] processor LNXCPU:03:
registered as cooling_device3
Mar 9 08:31:11 node20 kernel: [ 11.448950] processor LNXCPU:04:
registered as cooling_device4
Mar 9 08:31:11 node20 kernel: [ 11.449253] processor LNXCPU:05:
registered as cooling_device5
Mar 9 08:31:11 node20 kernel: [ 11.449557] processor LNXCPU:06:
registered as cooling_device6
Mar 9 08:31:11 node20 kernel: [ 11.449858] processor LNXCPU:07:
registered as cooling_device7
Mar 9 08:31:11 node20 kernel: [ 11.584225] i2c i2c-0: nForce2 SMBus
adapter at 0x2d00
Mar 9 08:31:11 node20 kernel: [ 11.584244] i2c i2c-1: nForce2 SMBus
adapter at 0x2e00
Mar 9 08:31:11 node20 kernel: [ 11.614078] input: PC Speaker as
/devices/platform/pcspkr/input/input5
Mar 9 08:31:11 node20 kernel: [ 11.699803] EDAC MC: Ver: 2.1.0 Jan 10
2010
Mar 9 08:31:11 node20 kernel: [ 11.826247] EDAC amd64_edac: Ver:
3.2.0 Jan 10 2010
Mar 9 08:31:11 node20 kernel: [ 11.826765] Error: Driver 'pcspkr' is
already registered, aborting...
Mar 9 08:31:11 node20 kernel: [ 11.826812] EDAC amd64: ECC is enabled
by BIOS.
Mar 9 08:31:11 node20 kernel: [ 11.826992] EDAC amd64: ECC is enabled
by BIOS.

Mar 9 08:31:11 node20 kernel: [ 11.827029] EDAC MC: F10h CPU detected
Mar 9 08:31:11 node20 kernel: [ 11.827095] EDAC MC0: Giving out
device to 'amd64_edac' 'Family 10h': DEV 0000:00:18.2

Mar 9 08:31:11 node20 kernel: [ 11.827098] EDAC MC: F10h CPU detected
Mar 9 08:31:11 node20 kernel: [ 11.827157] EDAC MC1: Giving out
device to 'amd64_edac' 'Family 10h': DEV 0000:00:19.2
Mar 9 08:31:11 node20 kernel: [ 11.827174] EDAC PCI0: Giving out
device to module 'amd64_edac' controller 'EDAC PCI controller': DEV
'0000:00:18.2' (POLLED)
Mar 9 08:31:11 node20 kernel: [ 12.124910] Adding 32170120k swap on
/dev/sda6. Priority:-1 extents:1 across:32170120k

Mar 9 08:31:11 node20 kernel: [ 12.338321] loop: module loaded
Mar 9 08:31:11 node20 kernel: [ 14.407171] EXT4-fs (sda5): mounted
filesystem with ordered data mode
Mar 9 08:31:11 node20 kernel: [ 15.002385] EXT4-fs (sdb1): recovery
complete
Mar 9 08:31:11 node20 kernel: [ 15.002786] EXT4-fs (sdb1): mounted
filesystem with ordered data mode
Mar 9 08:31:11 node20 kernel: [ 15.568677] EXT4-fs (sdc1): recovery
complete
Mar 9 08:31:11 node20 kernel: [ 15.570225] EXT4-fs (sdc1): mounted
filesystem with ordered data mode
Mar 9 08:31:11 node20 kernel: [ 16.180705] EXT4-fs (sdd1): recovery
complete
Mar 9 08:31:11 node20 kernel: [ 16.180909] EXT4-fs (sdd1): mounted
filesystem with ordered data mode
Mar 9 08:31:11 node20 kernel: [ 16.834881] alloc irq_desc for 30 on
node 0

Mar 9 08:31:11 node20 kernel: [ 16.834885] alloc kstat_irqs on node 0
Mar 9 08:31:11 node20 kernel: [ 16.834895] forcedeth 0000:00:08.0:
irq 30 for MSI/MSI-X

Mar 9 08:31:21 node20 kernel: [ 27.456017] eth0: no IPv6 routers present




The device statistics (output from ethtool -S eth0) might also be
informative.


NIC statistics:
tx_bytes: 63756006188
tx_zero_rexmt: 56365619
tx_one_rexmt: 0
tx_many_rexmt: 0
tx_late_collision: 0
tx_fifo_errors: 0
tx_carrier_errors: 0
tx_excess_deferral: 0
tx_retry_error: 0
rx_frame_error: 0
rx_extra_byte: 0
rx_late_collision: 0
rx_runt: 0
rx_frame_too_long: 0
rx_over_errors: 0
rx_crc_errors: 0
rx_frame_align_error: 0
rx_length_error: 0
rx_unicast: 58975439
rx_multicast: 933
rx_broadcast: 1618
rx_packets: 58977990
rx_errors_total: 0
tx_errors_total: 0
tx_deferral: 0
tx_packets: 56365619
rx_bytes: 69269122814
tx_pause: 0
rx_pause: 46798
rx_drop_frame: 46798
tx_unicast: 2284
tx_multicast: 3008
tx_broadcast: 16510200339

If I ifdown eth0 and then ifup eth0, I can again connect to the system
without problems.


Thanks,

-stephen

--
Stephen Mulcahy, DI2, Digital Enterprise Research Institute,
NUI Galway, IDA Business Park, Lower Dangan, Galway, Ireland
http://di2.deri.ie http://webstar.deri.ie http://sindice.com




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