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Comment 2yalzhang@redhat.com
2023-03-02 04:33:57 UTC
I can reproduce it with the new passt package passt-0^20230227.gc538ee8-1.fc39.x86_64. It's a regression.
The same scenario works well on passt-0^20221110.g4129764-1.fc38.x86_64.
Test with:
libvirt v9.1.0-rc2-4-g541670dd5c
qemu-kvm-7.2.0-7.fc39.x86_64
(In reply to yalzhang from comment #2)
> I can reproduce it with the new passt package
> passt-0^20230227.gc538ee8-1.fc39.x86_64. It's a regression.
> The same scenario works well on passt-0^20221110.g4129764-1.fc38.x86_64.
Interesting, thanks for the additional test. I still have to try and reproduce it with RHEL guest on RHEL host to debug this further.
(In reply to yalzhang from comment #2)
> I can reproduce it with the new passt package
> passt-0^20230227.gc538ee8-1.fc39.x86_64. It's a regression.
> The same scenario works well on passt-0^20221110.g4129764-1.fc38.x86_64.
>
> Test with:
> libvirt v9.1.0-rc2-4-g541670dd5c
> qemu-kvm-7.2.0-7.fc39.x86_64
Hello Yalan
I guess you are also reproduced it with ovmf guest, right?
Thanks
Lei
Comment 19yalzhang@redhat.com
2023-03-06 16:43:07 UTC
I test it downstream on rhel9.2 with rhel9.2 latest image(ovmf), the issue can *not* be reproduced.
libvirt-9.0.0-8.el9_rc.a7213e6de2.x86_64(scratch build in bz2169244#c5)
qemu-kvm-7.2.0-10.el9.x86_64
passt-0^20230222.g4ddbcb9-1.el9.x86_64
Also I have tried below version, no issue found. Not sure what happend last time when I test it on upstream.
passt-0^20230227.gc538ee8-1.fc39.x86_64
Comment 20yalzhang@redhat.com
2023-03-06 16:51:03 UTC
(In reply to yalzhang from comment #19)
> Also I have tried below version, no issue found. Not sure what happend last
> time when I test it on upstream.
> passt-0^20230227.gc538ee8-1.fc39.x86_64
s/fc39.x86_64/el9.x86_64
Description of problem: Two passt instances of different guests sometimes fail to communicate with using the address of the default gateway through TCP Version-Release number of selected component (if applicable): passt-0^20230222.g4ddbcb9-1.el9.x86_64 qemu-kvm-7.2.0-9.el9.x86_64 kernel-5.14.0-281.el9.x86_64 libvirt-9.0.0-6.el9.x86_64 seabios-bin-1.16.1-1.el9.noarch edk2-ovmf-20221207gitfff6d81270b5-6.el9.noarch How reproducible: 2/5 Steps to Reproduce: 1.Create two passt instance and boot up the corresponding guest: Passt1: $ passt -f -t 10001 -u 10001 -P passt1.pid $ PATH:/usr/libexec $ qrap 5 qemu-kvm -m 16059 -smp 6 -blockdev '{"node-name": "file_ovmf_code", "driver": "file", "filename": "/usr/share/OVMF/OVMF_CODE.secboot.fd", "auto-read-only": true, "discard": "unmap"}' -blockdev '{"node-name": "drive_ovmf_code", "driver": "raw", "read-only": true, "file": "file_ovmf_code"}' -blockdev '{"node-name": "file_ovmf_vars", "driver": "file", "filename": "/home/test/avocado-vt-vm1_rhel920-64-virtio-scsi_qcow2_filesystem_VARS.fd", "auto-read-only": true, "discard": "unmap"}' -blockdev '{"node-name": "drive_ovmf_vars", "driver": "raw", "read-only": false, "file": "file_ovmf_vars"}' -machine q35,memory-backend=mem-machine_mem,pflash0=drive_ovmf_code,pflash1=drive_ovmf_vars -device '{"id": "pcie-root-port-0", "driver": "pcie-root-port", "multifunction": true, "bus": "pcie.0", "addr": "0x1", "chassis": 1}' -device '{"id": "pcie-pci-bridge-0", "driver": "pcie-pci-bridge", "addr": "0x0", "bus": "pcie-root-port-0"}' -nodefaults -device '{"driver": "VGA", "bus": "pcie.0", "addr": "0x2"}' -m 62464 -object '{"size": 65498251264, "id": "mem-machine_mem", "qom-type": "memory-backend-ram"}' -smp 28,maxcpus=28,cores=14,threads=1,dies=1,sockets=2 -cpu 'Icelake-Server',ds=on,ss=on,dtes64=on,vmx=on,pdcm=on,hypervisor=on,tsc-adjust=on,avx512ifma=on,sha-ni=on,rdpid=on,fsrm=on,md-clear=on,stibp=on,arch-capabilities=on,xsaves=on,ibpb=on,ibrs=on,amd-stibp=on,amd-ssbd=on,rdctl-no=on,ibrs-all=on,skip-l1dfl-vmentry=on,mds-no=on,pschange-mc-no=on,tsx-ctrl=on,hle=off,rtm=off,mpx=off,intel-pt=off,kvm_pv_unhalt=on -device '{"id": "pcie-root-port-2", "port": 2, "driver": "pcie-root-port", "addr": "0x1.0x2", "bus": "pcie.0", "chassis": 3}' -device '{"id": "virtio_scsi_pci0", "driver": "virtio-scsi-pci", "bus": "pcie-root-port-2", "addr": "0x0"}' -blockdev '{"node-name": "file_image1", "driver": "file", "auto-read-only": true, "discard": "unmap", "aio": "threads", "filename": "/home/test/rhel920-64-virtio-scsi.qcow2", "cache": {"direct": true, "no-flush": false}}' -blockdev '{"node-name": "drive_image1", "driver": "qcow2", "read-only": false, "cache": {"direct": true, "no-flush": false}, "file": "file_image1"}' -device '{"driver": "scsi-hd", "id": "image1", "drive": "drive_image1", "write-cache": "on"}' -device '{"id": "pcie-root-port-3", "port": 3, "driver": "pcie-root-port", "addr": "0x1.0x3", "bus": "pcie.0", "chassis": 4}' -device '{"driver": "virtio-net-pci", "id": "net0", "netdev": "hostnet0", "x-txburst": 16384, "bus": "pcie-root-port-3", "addr": "0x0"}' -netdev socket,fd=5,id=hostnet0 -boot menu=off,order=cdn,once=c,strict=off -vnc :0 -boot menu=off,order=cdn,once=c,strict=off -monitor stdio Passt2: $ passt -f -t 10002 -u 10002 -P passt2.pid $ PATH=$PATH:/usr/libexec $ qrap 5 qemu-kvm -m 16059 -smp 6 -blockdev '{"node-name": "file_ovmf_code", "driver": "file", "filename": "/usr/share/OVMF/OVMF_CODE.secboot.fd", "auto-read-only": true, "discard": "unmap"}' -blockdev '{"node-name": "drive_ovmf_code", "driver": "raw", "read-only": true, "file": "file_ovmf_code"}' -blockdev '{"node-name": "file_ovmf_vars", "driver": "file", "filename": "/home/test/2.fd", "auto-read-only": true, "discard": "unmap"}' -blockdev '{"node-name": "drive_ovmf_vars", "driver": "raw", "read-only": false, "file": "file_ovmf_vars"}' -machine q35,memory-backend=mem-machine_mem,pflash0=drive_ovmf_code,pflash1=drive_ovmf_vars -device '{"id": "pcie-root-port-0", "driver": "pcie-root-port", "multifunction": true, "bus": "pcie.0", "addr": "0x1", "chassis": 1}' -device '{"id": "pcie-pci-bridge-0", "driver": "pcie-pci-bridge", "addr": "0x0", "bus": "pcie-root-port-0"}' -nodefaults -device '{"driver": "VGA", "bus": "pcie.0", "addr": "0x2"}' -m 62464 -object '{"size": 65498251264, "id": "mem-machine_mem", "qom-type": "memory-backend-ram"}' -smp 28,maxcpus=28,cores=14,threads=1,dies=1,sockets=2 -cpu 'Icelake-Server',ds=on,ss=on,dtes64=on,vmx=on,pdcm=on,hypervisor=on,tsc-adjust=on,avx512ifma=on,sha-ni=on,rdpid=on,fsrm=on,md-clear=on,stibp=on,arch-capabilities=on,xsaves=on,ibpb=on,ibrs=on,amd-stibp=on,amd-ssbd=on,rdctl-no=on,ibrs-all=on,skip-l1dfl-vmentry=on,mds-no=on,pschange-mc-no=on,tsx-ctrl=on,hle=off,rtm=off,mpx=off,intel-pt=off,kvm_pv_unhalt=on -device '{"id": "pcie-root-port-2", "port": 2, "driver": "pcie-root-port", "addr": "0x1.0x2", "bus": "pcie.0", "chassis": 3}' -device '{"id": "virtio_scsi_pci0", "driver": "virtio-scsi-pci", "bus": "pcie-root-port-2", "addr": "0x0"}' -blockdev '{"node-name": "file_image1", "driver": "file", "auto-read-only": true, "discard": "unmap", "aio": "threads", "filename": "/home/test/2.qcow2", "cache": {"direct": true, "no-flush": false}}' -blockdev '{"node-name": "drive_image1", "driver": "qcow2", "read-only": false, "cache": {"direct": true, "no-flush": false}, "file": "file_image1"}' -device '{"driver": "scsi-hd", "id": "image1", "drive": "drive_image1", "write-cache": "on"}' -device '{"id": "pcie-root-port-3", "port": 3, "driver": "pcie-root-port", "addr": "0x1.0x3", "bus": "pcie.0", "chassis": 4}' -device '{"driver": "virtio-net-pci", "id": "net0", "netdev": "hostnet0", "x-txburst": 16384, "bus": "pcie-root-port-3", "addr": "0x0"}' -netdev socket,fd=5,id=hostnet0 -boot menu=off,order=cdn,once=c,strict=off -vnc :1 -boot menu=off,order=cdn,once=c,strict=off -monitor stdio 2.Disable firewall in two guests and host. # systemctl stop firewalld.service || service iptables stop || iptables -F || nft flush ruleset 3.Two guests communicating through TCP using the default gateway address sometimes fails On guest 2: # nc -l 10002 On guest1: # echo "Hello from guest1" | nc 10.73.213.254 10002 Nact: TIMEOUT Actual results: Nact: TIMEOUT Expected results: Two guests can communicate with each other via TCP using the address of the default gateway Additional info: 1. From the QE perspective, it should not a regression bug, since this scenario always test with seabios guest in the past,this issue maybe have always existed. And test passed with seabios guest when used the same host env (Tested 5 times).