Bug 1355661
| Summary: | [Q35] Nic didn't be found through ifconfig after hot-plug the physical network | ||||||
|---|---|---|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | jingzhao <jinzhao> | ||||
| Component: | qemu-kvm-rhev | Assignee: | Marcel Apfelbaum <marcel> | ||||
| Status: | CLOSED DUPLICATE | QA Contact: | jingzhao <jinzhao> | ||||
| Severity: | high | Docs Contact: | |||||
| Priority: | high | ||||||
| Version: | 7.3 | CC: | chayang, juzhang, knoel, virt-maint, yfu, yiwei | ||||
| Target Milestone: | rc | ||||||
| Target Release: | --- | ||||||
| Hardware: | Unspecified | ||||||
| OS: | Unspecified | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2016-08-08 14:18:30 UTC | Type: | Bug | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
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Created attachment 1178798 [details]
The log of dmesg
Also, the nic can be found after the guest reboot Hi, This is yet another symptom of BZ 1352808. See comment #3 fore more details. It is not related to devices assignmen, a virtio-net-pci device in virtio-1 mode will have the same issue. (Please let me know if I am wrong) The same outcome should be also for a i440fx machine when assigning the device into a pci-bridge. It is possible that a newer Linux guest with 4.5 or newer kernel will succeed to re-balance the PCI resources. Thanks, Marcel *** This bug has been marked as a duplicate of bug 1352808 *** |
Description of problem: Network didn't be found through ifconfig after hot-plug the physical network Version-Release number of selected component (if applicable): host kernel:3.10.0-464.el7.x86_64 qemu-kvm-rhev-2.6.0-12.el7.x86_64 seabios-bin-1.9.1-4.el7.noarch guest kernel:3.10.0-456.el7.x86_64 How reproducible: 3/3 Steps to Reproduce: ll /sys/bus/pci/devices/0000\:03\:00.0/driver lrwxrwxrwx. 1 root root 0 Jul 12 01:44 /sys/bus/pci/devices/0000:03:00.0/driver -> ../../../../bus/pci/drivers/vfio-pci 1.Boot guest with following cli: /usr/libexec/qemu-kvm \ -M q35 \ -cpu SandyBridge \ -nodefaults -rtc base=utc \ -m 4G \ -smp 2,sockets=2,cores=1,threads=1 \ -enable-kvm \ -name rhel7.3 \ -uuid 990ea161-6b67-47b2-b803-19fb01d30d12 \ -smbios type=1,manufacturer='Red Hat',product='RHEV Hypervisor',version=el6,serial=koTUXQrb,uuid=feebc8fd-f8b0-4e75-abc3-e63fcdb67170 \ -k en-us \ -serial unix:/tmp/serial0,server,nowait \ -boot menu=on \ -bios /usr/share/seabios/bios.bin \ -chardev file,path=/home/seabios.log,id=seabios \ -device isa-debugcon,chardev=seabios,iobase=0x402 \ -qmp tcp::8887,server,nowait \ -vga qxl \ -spice port=5932,disable-ticketing \ -device ioh3420,id=root.0,slot=1 \ -drive file=/home/q35-seabios.qcow2,if=none,id=drive-virtio-disk0,format=qcow2,cache=none,werror=stop,rerror=stop \ -device virtio-blk-pci,bus=root.0,drive=drive-virtio-disk0,id=virtio-disk0,disable-legacy=on,disable-modern=off,bootindex=1 \ -device ioh3420,id=root.1,slot=2 \ -device x3130-upstream,bus=root.1,id=upstream1 \ -device xio3130-downstream,bus=upstream1,id=downstream1,chassis=1 \ -device xio3130-downstream,bus=upstream1,id=downstream2,chassis=2 \ -device xio3130-downstream,bus=upstream1,id=downstream3,chassis=3 \ -drive file=/home/block1.qcow2,if=none,id=drive-virtio-disk1,format=qcow2,cache=none,werror=stop,rerror=stop \ -device virtio-blk-pci,bus=downstream1,drive=drive-virtio-disk1,id=virtio-disk1,disable-legacy=on,disable-modern=off \ -drive file=/home/block2.raw,if=none,id=drive-virtio-disk2,format=raw,cache=none,werror=stop,rerror=stop \ -device virtio-blk-pci,bus=downstream2,drive=drive-virtio-disk2,id=virtio-disk2,disable-legacy=on,disable-modern=off \ -device ioh3420,id=root.2,slot=3 \ -device virtio-net-pci,bus=root.2,netdev=tap10,mac=9a:6a:6b:6c:6d:6e -netdev tap,id=tap10 \ -monitor stdio \ 2. Hot-plug the physical network through hmp {"execute":"device_add","arguments":{"driver":"vfio-pci","host":"03:00.0","id":"pf","bus":"downstream3"}} 3.check the network info [root@unused ~]# lspci 00:00.0 Host bridge: Intel Corporation 82G33/G31/P35/P31 Express DRAM Controller 00:01.0 VGA compatible controller: Red Hat, Inc. QXL paravirtual graphic card (rev 04) 00:02.0 PCI bridge: Intel Corporation 7500/5520/5500/X58 I/O Hub PCI Express Root Port 0 (rev 02) 00:03.0 PCI bridge: Intel Corporation 7500/5520/5500/X58 I/O Hub PCI Express Root Port 0 (rev 02) 00:04.0 PCI bridge: Intel Corporation 7500/5520/5500/X58 I/O Hub PCI Express Root Port 0 (rev 02) 00:1f.0 ISA bridge: Intel Corporation 82801IB (ICH9) LPC Interface Controller (rev 02) 00:1f.2 SATA controller: Intel Corporation 82801IR/IO/IH (ICH9R/DO/DH) 6 port SATA Controller [AHCI mode] (rev 02) 00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 02) 01:00.0 SCSI storage controller: Red Hat, Inc Virtio block device (rev 01) 02:00.0 PCI bridge: Texas Instruments XIO3130 PCI Express Switch (Upstream) (rev 02) 03:00.0 PCI bridge: Texas Instruments XIO3130 PCI Express Switch (Downstream) (rev 01) 03:01.0 PCI bridge: Texas Instruments XIO3130 PCI Express Switch (Downstream) (rev 01) 03:02.0 PCI bridge: Texas Instruments XIO3130 PCI Express Switch (Downstream) (rev 01) 04:00.0 SCSI storage controller: Red Hat, Inc Virtio block device (rev 01) 05:00.0 SCSI storage controller: Red Hat, Inc Virtio block device (rev 01) 06:00.0 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev 01) 07:00.0 Ethernet controller: Red Hat, Inc Virtio network device [root@unused ~]# lspci -vvv -t -[0000:00]-+-00.0 Intel Corporation 82G33/G31/P35/P31 Express DRAM Controller +-01.0 Red Hat, Inc. QXL paravirtual graphic card +-02.0-[01]----00.0 Red Hat, Inc Virtio block device +-03.0-[02-06]----00.0-[03-06]--+-00.0-[04]----00.0 Red Hat, Inc Virtio block device | +-01.0-[05]----00.0 Red Hat, Inc Virtio block device | \-02.0-[06]----00.0 Intel Corporation 82576 Gigabit Network Connection +-04.0-[07]----00.0 Red Hat, Inc Virtio network device +-1f.0 Intel Corporation 82801IB (ICH9) LPC Interface Controller +-1f.2 Intel Corporation 82801IR/IO/IH (ICH9R/DO/DH) 6 port SATA Controller [AHCI mode] \-1f.3 Intel Corporation 82801I (ICH9 Family) SMBus Controller [root@unused home]# ifconfig eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 10.66.144.137 netmask 255.255.252.0 broadcast 10.66.147.255 inet6 2620:52:0:4292:986a:6bff:fe6c:6d6e prefixlen 64 scopeid 0x0<global> inet6 fe80::986a:6bff:fe6c:6d6e prefixlen 64 scopeid 0x20<link> ether 9a:6a:6b:6c:6d:6e txqueuelen 1000 (Ethernet) RX packets 636 bytes 73066 (71.3 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 309 bytes 139427 (136.1 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 1 (Local Loopback) RX packets 128 bytes 11780 (11.5 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 128 bytes 11780 (11.5 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500 inet 192.168.122.1 netmask 255.255.255.0 broadcast 0.0.0.0 ether 00:00:00:00:00:00 txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 virbr0-nic: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500 ether 52:54:00:41:03:50 txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 Actual results: The physical network didn't be found through "ifconfig" The detail error message through "dmesg" [ 95.302198] igb: Intel(R) Gigabit Ethernet Network Driver - version 5.3.0-k [ 95.302201] igb: Copyright (c) 2007-2014 Intel Corporation. [ 95.311126] igb: probe of 0000:06:00.0 failed with error -5 Expected results: The physical network can be found through "ifconfig" Additional info: 1.Didn't hit the issue when hot-plug to the root port 2.Didn't hit the issue with pc machine type Following is the info of physical net [root@hp-z800-01 home]# lspci -vvv -s 03:00.0 03:00.0 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev 01) Subsystem: Intel Corporation Gigabit ET Dual Port Server Adapter Physical Slot: 1 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 29 Region 0: Memory at e4800000 (32-bit, non-prefetchable) [disabled] [size=128K] Region 1: Memory at e4000000 (32-bit, non-prefetchable) [disabled] [size=4M] Region 2: I/O ports at c000 [disabled] [size=32] Region 3: Memory at e4840000 (32-bit, non-prefetchable) [disabled] [size=16K] 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=1 PME- Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+ Address: 0000000000000000 Data: 0000 Masking: 00000000 Pending: 00000000 Capabilities: [70] MSI-X: Enable- Count=10 Masked- Vector table: BAR=3 offset=00000000 PBA: BAR=3 offset=00002000 Capabilities: [a0] Express (v2) Endpoint, MSI 00 DevCap: MaxPayload 512 bytes, PhantFunc 0, Latency L0s <512ns, L1 <64us ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ SlotPowerLimit 0.000W DevCtl: Report errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+ RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ FLReset- MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr- UncorrErr+ FatalErr- UnsuppReq- AuxPwr+ TransPend- LnkCap: Port #0, Speed 2.5GT/s, Width x4, ASPM L0s L1, Exit Latency L0s <4us, L1 <64us ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp- LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x4, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Range ABCD, TimeoutDis+, LTR-, OBFF Not Supported DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis- Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance De-emphasis: -6dB LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1- EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- 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: 0e, GenCap- CGenEn- ChkCap- ChkEn- Capabilities: [140 v1] Device Serial Number 00-1b-21-ff-ff-42-33-84 Capabilities: [150 v1] Alternative Routing-ID Interpretation (ARI) ARICap: MFVC- ACS-, Next Function: 1 ARICtl: MFVC- ACS-, Function Group: 0 Capabilities: [160 v1] Single Root I/O Virtualization (SR-IOV) IOVCap: Migration-, Interrupt Message Number: 000 IOVCtl: Enable- Migration- Interrupt- MSE- ARIHierarchy+ IOVSta: Migration- Initial VFs: 8, Total VFs: 8, Number of VFs: 0, Function Dependency Link: 00 VF offset: 128, stride: 2, Device ID: 10ca Supported Page Size: 00000553, System Page Size: 00000001 Region 0: Memory at 00000000e4848000 (64-bit, non-prefetchable) Region 3: Memory at 00000000e4868000 (64-bit, non-prefetchable) VF Migration: offset: 00000000, BIR: 0 Kernel driver in use: vfio-pci Kernel modules: igb