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Date: Sat, 7 Mar 2015 14:56:30 +0100 From: Thomas Petazzoni <thomas.petazzoni@...e-electrons.com> To: Michael Langer <michael.brainbug.langer@...nline.de> Cc: netdev@...r.kernel.org, Willy Tarreau <w@....eu> Subject: Re: Network Receive Problems on NetGearRn104 Armarda370 Dear Michael Langer, On Sat, 7 Mar 2015 14:51:54 +0100, Michael Langer wrote: > I have a Network problem on my Armarda370 based NetGear RN104. I use the RN104 as TV and NFS Server. The TV Service gets its data from a network attached receiver via ip6 multicast stream. In case of nfs traffic or video streams > 20MBit into the box the kernel log is filled with error messages [1]. While for the NFS Service only performance id affected. For the TV Service I get visible artifarcts due to missing packets. > > The RN104 is connected to a managed switch (ProCurve 1810G-24) configured without jumbo frame support (MTU=1518). I could not trigger these messages by running 'iperf -s' on the server and 'iperf -c <ip-addr>' on the client side (~930MBit)?! The RN104 is a relplacement unit for a Kirwood based NAS which is still working. The old NAS is working without packet loss, so I think that I can rule out the network receiver as a source of the missing packets. > > Things I have checked with no success: > - Ethernet hardware cable > - change port on switch > - chage port on RN104 > - Kernel 3.17.1.rn104 from natisbad.org did not report errors but gave also artifarcts on TV-Stream > - Kernel Version 3.18,7, 3.19, 4.0-rc2 > - ethtool playing with coalesce rx-usecs/frames and rx ring buffer count > - change nice level for TV-Service > > At the moment I don't know how to proceed to solve the issue. Thanks Michael for your detailed report. I'm adding Willy Tarreau in the loop, who has done a lot of work on Armada 370 networking. He may have some ideas of things to try to narrow down the problem. Do you know if you could produce a test case that would allow us to reproduce the problem? I'm leaving the logs unchanged below so that Willy can have a look. Thanks! Thomas > [1] kernel error messages: > [ 645.033693] mvneta d0070000.ethernet eth0: bad rx status 0f830000 (overrun error), size=272 > [ 645.124548] mvneta d0070000.ethernet eth0: bad rx status 0f830000 (overrun error), size=440 > [ 646.292391] mvneta d0070000.ethernet eth0: bad rx status 0f830000 (overrun error), size=504 > [ 646.300810] mvneta d0070000.ethernet eth0: bad rx status 0f830000 (overrun error), size=264 > [ 646.570845] mvneta d0070000.ethernet eth0: bad rx status 0f830000 (overrun error), size=896 > [ 646.590264] mvneta d0070000.ethernet eth0: bad rx status 0f830000 (overrun error), size=816 > [ 646.620702] mvneta d0070000.ethernet eth0: bad rx status 0f830000 (overrun error), size=640 > [ 646.669245] mvneta d0070000.ethernet eth0: bad rx status 0f830000 (overrun error), size=1152 > [ 647.064124] mvneta d0070000.ethernet eth0: bad rx status 0f830000 (overrun error), size=272 > [ 647.547118] mvneta d0070000.ethernet eth0: bad rx status 0f830000 (overrun error), size=512 > [ 647.910284] mvneta d0070000.ethernet eth0: bad rx status 0f830000 (overrun error), size=448 > [ 647.951694] mvneta d0070000.ethernet eth0: bad rx status 0f830000 (overrun error), size=1408 > [ 648.429839] mvneta d0070000.ethernet eth0: bad rx status 0f830000 (overrun error), size=448 > [ 649.090540] mvneta d0070000.ethernet eth0: bad rx status 0f830000 (overrun error), size=1024 > [ 649.116472] mvneta d0070000.ethernet eth0: bad rx status 0f830000 (overrun error), size=1408 > [ 649.124982] mvneta d0070000.ethernet eth0: bad rx status 0f830000 (overrun error), size=384 > [ 649.473988] mvneta d0070000.ethernet eth0: bad rx status 0f830000 (overrun error), size=512 > > The Kernel is compliled without external modules. > # cat /proc/modules > - > > # ls /sys/module/ > 8021q dm_bufio firmware_class ipv6 md_mod nfs raid456 smsc95xx usbcore > 8250 dm_mirror fscache kernel mvneta nfsd rng_core spurious usbhid > ahci dm_mod fuse keyboard nbd ntfs sata_mv sunrpc vt > asix dm_raid hid libahci nf_conntrack printk scsi_mod tcp_cubic workqueue > auth_rpcgss dm_snapshot hid_apple libata nf_conntrack_ftp pxa3xx_nand sg ubi xhci_hcd > block dns_resolver ip6_tunnel lockd nf_conntrack_ipv4 raid1 sit ubifs xz_dec > configfs ehci_hcd ipip loop nf_conntrack_tftp raid10 smsc75xx usb_storage > > # cat /proc/version > Linux version 4.0.0-rc2.rn104 (michael@...hael) (gcc version 4.9.2 (crosstool-NG 1.20.0) ) #6 Sat Mar 7 13:24:27 CET 2015 > > # cat /proc/ioports > 00001000-000fffff : PCI I/O > 00010000-00010fff : PCI Bus 0000:02 > 00010000-0001001f : 0000:02:00.0 > 00010000-0001001f : ahci > 00010020-00010027 : 0000:02:00.0 > 00010020-00010027 : ahci > 00010028-0001002f : 0000:02:00.0 > 00010028-0001002f : ahci > 00010030-00010033 : 0000:02:00.0 > 00010030-00010033 : ahci > 00010034-00010037 : 0000:02:00.0 > 00010034-00010037 : ahci > > # cat /proc/iomem > 00000000-1fffffff : System RAM > 00008000-007e1563 : Kernel code > 00816000-008b6647 : Kernel data > d0011000-d001101f : /soc/internal-regs/i2c@...00 > d0012000-d001201f : serial > d0018000-d0018037 : /soc/internal-regs/pin-ctrl@...00 > d0018100-d001813f : /soc/internal-regs/gpio@...00 > d0018140-d001817f : /soc/internal-regs/gpio@...40 > d0018180-d00181bf : /soc/internal-regs/gpio@...80 > d0018300-d0018303 : /soc/internal-regs/thermal@...00 > d0018304-d0018307 : /soc/internal-regs/thermal@...00 > d0020800-d0020807 : /soc/internal-regs/cpurst@...00 > d0020a00-d0020bcf : /soc/internal-regs/interrupt-controller@...00 > d0021870-d00218c7 : /soc/internal-regs/interrupt-controller@...00 > d0022000-d0022fff : /soc/internal-regs/pmsu@...00 > d0040000-d0041fff : /soc/pcie-controller/pcie@1,0 > d0050000-d00504ff : /soc/internal-regs/usb@...00 > d0070000-d0073fff : /soc/internal-regs/ethernet@...00 > d0074000-d0077fff : /soc/internal-regs/ethernet@...00 > d0080000-d0081fff : /soc/pcie-controller/pcie@2,0 > d00d0000-d00d0053 : /soc/internal-regs/nand@...00 > f8000000-ffdfffff : PCI MEM > f8000000-f80fffff : PCI Bus 0000:01 > f8000000-f800ffff : 0000:01:00.0 > f8000000-f800ffff : xhci-hcd > f8010000-f8010fff : 0000:01:00.0 > f8011000-f8011fff : 0000:01:00.0 > f8100000-f81fffff : PCI Bus 0000:02 > f8100000-f810ffff : 0000:02:00.0 > f8110000-f81107ff : 0000:02:00.0 > f8110000-f81107ff : ahci > > # lspci -vvv > 00:01.0 PCI bridge: Marvell Technology Group Ltd. Device 6710 (rev 01) (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=01, subordinate=01, sec-latency=0 > I/O behind bridge: 0000f000-00000fff > Memory behind bridge: f8000000-f80fffff > Prefetchable memory behind bridge: 00000000-000fffff > Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR- > BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B- > PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- > > 00:02.0 PCI bridge: Marvell Technology Group Ltd. Device 6710 (rev 01) (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 > I/O behind bridge: 00010000-00010fff > Memory behind bridge: f8100000-f81fffff > Prefetchable memory behind bridge: 00000000-000fffff > Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR- > BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B- > PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- > > 01:00.0 USB controller: Fresco Logic FL1009 USB 3.0 Host Controller (rev 02) (prog-if 30 [XHCI]) > Subsystem: Fresco Logic Device 0000 > 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 > Interrupt: pin A routed to IRQ 107 > Region 0: Memory at f8000000 (64-bit, non-prefetchable) [size=64K] > Region 2: Memory at f8010000 (64-bit, non-prefetchable) [size=4K] > Region 4: Memory at f8011000 (64-bit, non-prefetchable) [size=4K] > Capabilities: [40] Power Management version 3 > Flags: PMEClk- DSI- D1+ D2- AuxCurrent=375mA PME(D0+,D1+,D2-,D3hot+,D3cold+) > Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- > Capabilities: [50] MSI: Enable+ Count=1/8 Maskable- 64bit+ > Address: 00000000d0020a04 Data: 0f11 > Capabilities: [70] Express (v2) Endpoint, MSI 00 > DevCap: MaxPayload 512 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited > ExtTag- AttnBtn- AttnInd- PwrInd- 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 5GT/s, Width x1, ASPM L0s L1, Latency L0 unlimited, L1 unlimited > ClockPM- Surprise- LLActRep- BwNot- > LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk- > ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- > LnkSta: Speed 5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- > DevCap2: Completion Timeout: Not Supported, TimeoutDis+ > DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- > LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB > Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- > Compliance De-emphasis: -6dB > LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1- > EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- > Capabilities: [b0] MSI-X: Enable- Count=8 Masked- > Vector table: BAR=2 offset=00000000 > PBA: BAR=4 offset=00000000 > Capabilities: [100 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: xhci_hcd > > 02:00.0 SATA controller: Marvell Technology Group Ltd. Device 9215 (rev 11) (prog-if 01 [AHCI 1.0]) > Subsystem: Marvell Technology Group Ltd. Device 9215 > 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 > Interrupt: pin A routed to IRQ 106 > Region 0: I/O ports at 10020 [size=8] > Region 1: I/O ports at 10030 [size=4] > Region 2: I/O ports at 10028 [size=8] > Region 3: I/O ports at 10034 [size=4] > Region 4: I/O ports at 10000 [size=32] > Region 5: Memory at f8110000 (32-bit, non-prefetchable) [size=2K] > Expansion ROM at f8100000 [disabled] [size=64K] > Capabilities: [40] Power Management version 3 > 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=1/1 Maskable- 64bit- > Address: d0020a04 Data: 0f10 > Capabilities: [70] Express (v2) Legacy Endpoint, MSI 00 > DevCap: MaxPayload 512 bytes, PhantFunc 0, Latency L0s <1us, L1 <8us > ExtTag- AttnBtn- AttnInd- PwrInd- 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 5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <64us > ClockPM- Surprise- LLActRep- BwNot- > LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk- > ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- > LnkSta: Speed 5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- > DevCap2: Completion Timeout: Not Supported, TimeoutDis+ > DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- > LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB > Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- > Compliance De-emphasis: -6dB > LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1- > EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- > Capabilities: [e0] SATA HBA v0.0 BAR4 Offset=00000004 > Capabilities: [100 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: ahci -- Thomas Petazzoni, CTO, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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