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[Qemu-devel] [Bug 1013467] Re: network in bridge mode doesn't work in SM
[Qemu-devel] [Bug 1013467] Re: network in bridge mode doesn't work in SMP Linux guest
Mon, 25 Jun 2012 07:27:54 -0000
The regression is due to the patch of "rtl8139: do the network/host
communication only in normal operating mode". (Commit
However after applying the patch, someone already reported this issue.
revertted this patch.
Not sure why this patch revert-revert again? So the bug happened again.
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network in bridge mode doesn't work in SMP Linux guest
Status in QEMU:
Host OS (ia32/ia32e/IA64):ia32e
Guest OS (ia32/ia32e/IA64):ia32e
Guest OS Type (Linux/Windows):Linux
Host Kernel Version:3.5.0-rc1
Bug detailed description:
Network in bridge mode doesn't work in SMP RHEL6.1/6.2 guest.
After booting up, use “dhclient ethX” to get IP (we use DHCP in the network),
guest can not get IP.
Note: 1. UP guest(-smp 1) doesn’t have this issue.
2. Windows(e.g. Win7) guest(-smp 4) has no issue.
This should be a qemu-kvm bug.
kvm + qemu-kvm = result
25e531a9 + 0a948cbb = bad
25e531a9 + 18b01275 = good
1.start up a host with kvm(25e531a9) + qemu-kvm (0a948cbb)
2.qemu-system-x86_64 -m 1024 -smp 4 –net nic,model=rt18139 –net
tap,script=/etc/kvm/qemu-ifup –hda /root/rhel6u1.qcow
4. ping 192.168.199.98 (a IP in the same subnet)
5. dhclient ethx (can't get dynamic IP address)
The guest can not get IP
The guest get IP and work fine.
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