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    Issue with VM network dropping in and out

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    • A
      Andrew Top contributor @glenlewis09
      last edited by

      @glenlewis09 Does the XCP host report the ethernet link going down? dmesg

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      • G
        glenlewis09
        last edited by glenlewis09

        I don't see any logs from the XEN Orchestra.

        Home -> Hosts -> GLS-XENHOST08 -> Logs
        I see no logs here, Also When I go to Network The status is always showing connected.

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        • A
          Andrew Top contributor @glenlewis09
          last edited by

          @glenlewis09 You need to ssh into the XCP host.

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          • G
            glenlewis09 @Andrew
            last edited by

            @Andrew

            I have found the ssh command to create the log using the xen-bugtool.

            I am not a linux guru so I don't know how to transfer the log file from the host to the windows client via ssh. Nor do I know how to access the host files outside of ssh.

            [09:14GLS-XENHOST08bug-report]# xen-bugtool --yestoall
            Warning: '--yestoall' argument provided, will not prompt for individual files.

            This application will collate the Xen dmesg output, details of the
            hardware configuration of your machine, information about the build of
            Xen that you are using, plus, if you allow it, various logs.

            The collated information will be saved as a .tar.bz2 for archiving or
            sending to a Technical Support Representative.

            The logs may contain private information, and if you are at all
            worried about that, you should exit now, or you should explicitly
            exclude those logs from the archive.

            Omitting /dev/shm/metrics/xcp-rrdd-xenpm, size constraint of xcp-rrdd-plugins exceeded
            Omitting /dev/shm/metrics/xcp-rrdd-squeezed, size constraint of xcp-rrdd-plugins exceeded
            Omitting /dev/shm/metrics/xcp-rrdd-mem_vms, size constraint of xcp-rrdd-plugins exceeded
            Omitting /dev/shm/metrics/xcp-rrdd-mem_host, size constraint of xcp-rrdd-plugins exceeded
            [01/31/24 09:14:52 CST] Creating output file
            [01/31/24 09:14:52 CST] Running commands to collect data
            Writing tarball /var/opt/xen/bug-report/bug-report-20240131091452.tar.bz2 successful.
            [09:15GLS-XENHOST08bug-report]#

            This is the output from the ssh. But again I am not sure how to copy or even open the log data.

            Sorry for the lack of experience here.

            gskgerG 1 Reply Last reply Reply Quote 0
            • gskgerG
              gskger Top contributor @glenlewis09
              last edited by

              @glenlewis09 You can use WinSCP to connect to your host via SSH and browse the filesystem. WinSCP is a file manager and works in a similar way to Windows Explorer. Bonus: there is also a portable version.

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              • J
                john.c @gskger
                last edited by john.c

                @gskger said in Issue with VM network dropping in and out:

                @glenlewis09 You can use WinSCP to connect to your host via SSH and browse the filesystem. WinSCP is a file manager and works in a similar way to Windows Explorer. Bonus: there is also a portable version.

                @gskger @glenlewis09 You can also use use scp directly in PowerShell if on a up to date Windows 10 or Windows 11. You will need the SSH Client feature installed (enabled) though and running PowerShell 5 (or later).

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                • G
                  glenlewis09
                  last edited by

                  Thank you so much, that is a great insight. Now I have the logs there are 100+ log files. Which file are you wanting me to look at.

                  gskgerG 1 Reply Last reply Reply Quote 0
                  • gskgerG
                    gskger Top contributor @glenlewis09
                    last edited by gskger

                    @glenlewis09 Check out the troubleshooting guide on logs in the documentation. @Andrew was talking about the kernel message logs. At the CLI, you could also type dmsg to show the kernel messages since the last boot. You could narrow the result down further with dmesg | grep -i eth.

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                    • A
                      Andrew Top contributor @glenlewis09
                      last edited by

                      @glenlewis09 I'm running Windows 10 and 11 and it works correctly.

                      Are you only having problems with Windows 2019 and 2022 ?

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                      • A
                        Andrew Top contributor @glenlewis09
                        last edited by

                        @glenlewis09 I don't have the same system as you (also XCP 8.3), but I do have r8125 cards and a 2.5G switch. I installed Windows Server 2022 and have no problems keeping a Remote Desktop connection open and watching YouTube videos (with audio)...

                        I'll have to try it on my AMD system with the r8125 next.

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                        • G
                          glenlewis09
                          last edited by olivierlambert

                          @gskger said in Issue with VM network dropping in and out:

                          dmesg | grep -i eth

                          Last login: Wed Jan 31 09:11:37 2024 from 192.168.20.168
[13:59 GLS-XENHOST08 ~]#  dmesg | grep -i eth
[    1.042384] xen_netfront: Initialising Xen virtual ethernet driver
[    2.735978] r8125 Ethernet controller driver 9.012.03-NAPI-PTP-RSS loaded
[    3.823280] ACPI Error: Method parse/execution failed \_SB.UBTC._DSM, AE_NOT_FOUND (20180810/psparse-516)
[    3.860193] r8125 0000:02:00.0 side-2697-eth0: renamed from eth0
[    5.989957] r8125 0000:02:00.0 eth0: renamed from side-2697-eth0
[    7.086183] eth0: 0xffffc90040540000, 38:f7:cd:c6:d5:82, IRQ 177
[    7.114826] r8125 0000:02:00.0 eth0: registered PHC device on eth0
[    7.114829] r8125 0000:02:00.0 eth0: reset PHC clock
[    7.148004] device eth0 entered promiscuous mode
[    9.927534] r8125: eth0: link up
[133076.658774] NETDEV WATCHDOG: eth0 (r8125): transmit queue 1 timed out
[133076.685550] r8125 0000:02:00.0 eth0: reset PHC clock
[133076.706192] r8125: eth0: link down
[133079.932108] r8125: eth0: link up
[13:59GLS-XENHOST08~]#

                          These are the logs for the NIC

                          gskgerG 1 Reply Last reply Reply Quote 0
                          • G
                            glenlewis09 @Andrew
                            last edited by

                            @Andrew

                            It happens across all Windows OS, WIN 11/ Server 2016/2019/2022

                            But on one of the VM it never has issue.

                            But if I move the VM back to the other Host with the 1GB nic all the VM behave correctly.

                            Thank you.

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                            • gskgerG
                              gskger Top contributor @glenlewis09
                              last edited by gskger

                              @glenlewis09 Just to get more information on the NIC in your system, can you first identify the NICs with lspci | grep Ethernet (returns the ID 00:1f.6 on my system)

                              # lspci | grep Ethernet
00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (11) I219-LM

                              and than get more details with lspci -s 00:1f.6 -vv using the ID of your NIC

                              # lspci -s 00:1f.6 -vv
00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (11) I219-LM
        Subsystem: Hewlett-Packard Company Device 8715
        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
        Interrupt: pin A routed to IRQ 212
        Region 0: Memory at e1200000 (32-bit, non-prefetchable) [size=128K]
        Capabilities: [c8] 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=1 PME-
        Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
                Address: 00000000fee00f98  Data: 0000
        Kernel driver in use: e1000e
        Kernel modules: e1000e

                              While this does not address your issue, it gives more insight into your setup.

                              Edit: some typos

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                              • G
                                glenlewis09 @gskger
                                last edited by glenlewis09 

                                @gskger [14:39 GLS-XENHOST08 ~]#  lspci | grep Ethernet
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8125 2.5GbE Controller (rev 05)
[14:39 GLS-XENHOST08 ~]# ^C
[14:39 GLS-XENHOST08 ~]# lspci -s 02:00.0 -vvv
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8125 2.5GbE Controller (rev 05)
        Subsystem: Realtek Semiconductor Co., Ltd. Device 0123
        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 36
        Region 0: I/O ports at f000 [size=256]
        Region 2: Memory at fce00000 (64-bit, non-prefetchable) [size=64K]
        Region 4: Memory at fce10000 (64-bit, non-prefetchable) [size=16K]
        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=1/1 Maskable+ 64bit+
                Address: 0000000000000000  Data: 0000
                Masking: 00000000  Pending: 00000000
        Capabilities: [70] Express (v2) Endpoint, MSI 01
                DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <512ns, L1 <64us
                        ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset- SlotPowerLimit 75.000W
                DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
                        RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop-
                        MaxPayload 256 bytes, MaxReadReq 2048 bytes
                DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr+ TransPend-
                LnkCap: Port #0, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s unlimited, L1 <64us
                        ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+
                LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- CommClk+
                        ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt-
                LnkSta: Speed 5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
                DevCap2: Completion Timeout: Range ABCD, TimeoutDis+, LTR+, OBFF Via message/WAKE#
                DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR+, OBFF Disabled
                LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
                         Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
                         Compliance De-emphasis: -6dB
                LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-, EqualizationPhase1-
                         EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
        Capabilities: [b0] MSI-X: Enable+ Count=32 Masked-
                Vector table: BAR=4 offset=00000000
                PBA: BAR=4 offset=00000800
        Capabilities: [d0] Vital Product Data
pcilib: sysfs_read_vpd: read failed: Input/output error
                Not readable
        Capabilities: [100 v2] 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-
        Capabilities: [148 v1] Virtual Channel
                Caps:   LPEVC=0 RefClk=100ns PATEntryBits=1
                Arb:    Fixed- WRR32- WRR64- WRR128-
                Ctrl:   ArbSelect=Fixed
                Status: InProgress-
                VC0:    Caps:   PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
                        Arb:    Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
                        Ctrl:   Enable+ ID=0 ArbSelect=Fixed TC/VC=01
                        Status: NegoPending- InProgress-
        Capabilities: [168 v1] Device Serial Number 01-00-00-00-68-4c-e0-00
        Capabilities: [178 v1] Transaction Processing Hints
                No steering table available
        Capabilities: [204 v1] Latency Tolerance Reporting
                Max snoop latency: 1048576ns
                Max no snoop latency: 1048576ns
        Capabilities: [20c v1] L1 PM Substates
                L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+
                          PortCommonModeRestoreTime=150us PortTPowerOnTime=150us
        Capabilities: [21c v1] Vendor Specific Information: ID=0002 Rev=4 Len=100 <?>
        Kernel driver in use: r8125
        Kernel modules: r8125

[14:40GLS-XENHOST08~]#
                                gskgerG 1 Reply Last reply Reply Quote 0
                                • gskgerG
                                  gskger Top contributor @glenlewis09
                                  last edited by

                                  @glenlewis09 Can you please edit your post and format the output as code (insert ``` before and after the output)? This improves readability.

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                                  • G
                                    glenlewis09 @gskger
                                    last edited by

                                    @gskger done, thank you for the correction.

                                    gskgerG 1 Reply Last reply Reply Quote 1
                                    • gskgerG
                                      gskger Top contributor @glenlewis09
                                      last edited by gskger

                                      @glenlewis09 Again just to double check: your XCP-ng 8.2.1 is fully up-to-date (yum update returns No packages marked for update)? The refreshed 8.2.1 ISO from December 2023 contained updated drivers contributed by @Andrew, including the r8125 driver.

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                                      • G
                                        glenlewis09 @gskger
                                        last edited by

                                        @gskger said in Issue with VM network dropping in and out:

                                        yum update

                                        [15:25 GLS-XENHOST08 ~]# yum update
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Excluding mirror: updates.xcp-ng.org
 * xcp-ng-base: mirrors.xcp-ng.org
Excluding mirror: updates.xcp-ng.org
 * xcp-ng-updates: mirrors.xcp-ng.org
No packages marked for update
[15:25GLS-XENHOST08~]#
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                                        • gskgerG
                                          gskger Top contributor @glenlewis09
                                          last edited by

                                          @glenlewis09 The only thing that realy stands out is this error message:

                                          pcilib: sysfs_read_vpd: read failed: Input/output error
                Not readable

                                          Can you please try dmesg | grep VPD and report the output (if any)?

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                                          • G
                                            glenlewis09 @gskger
                                            last edited by

                                            @gskger said in Issue with VM network dropping in and out:

                                            dmesg | grep VPD

                                            [15:36 GLS-XENHOST08 ~]#  dmesg | grep VPD
[    5.967152] r8125 0000:02:00.0: invalid short VPD tag 00 at offset 1
[15:36GLS-XENHOST08~]#
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