Bug 643348
| Summary: | transmission stops when tap does not consume [rhel-5.5.z] | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 5 | Reporter: | RHEL Program Management <pm-rhel> |
| Component: | kernel | Assignee: | Jiri Pirko <jpirko> |
| Status: | CLOSED WONTFIX | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | medium | Docs Contact: | |
| Priority: | high | ||
| Version: | 5.5.z | CC: | bcao, dhoward, eguan, jpirko, jplans, lihuang, mjenner, mlessard, mst, pm-eus, rkhan, tburke, wquan, yvugenfi |
| Target Milestone: | rc | Keywords: | ZStream |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | kernel-2.6.18-194.28.1.el5 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2010-12-22 15:51:48 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 584412, 665293, 665295, 666367, 672619 | ||
| Bug Blocks: | |||
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Description
RHEL Program Management
2010-10-15 11:13:34 UTC
in kernel-2.6.18-194.28.1.el5 linux-2.6-net-tun-orphan-an-skb-on-tx.patch Retest on ,this issue still exists. # uname -r 2.6.18-194.30.1.el5 # rpm -q kvm kvm-83-164.el5_5.29 steps: 1.start guest A: /usr/libexec/qemu-kvm -m 4G -smp 4 -name RHEL5.5.z-32 -uuid 3a362be4-61c3-9780-7169-be9599b7e93b -no-kvm-pit-reinjection -boot dc -drive file=/home/mike,if=virtio,boot=on,format=qcow2,cache=none,werror=stop -net nic,macaddr=14:52:30:1a:8b:c1,vlan=0,model=virtio -net tap,script=/etc/qemu-ifup,vlan=0 -usb -vnc :10 -k en-us -vga cirrus -balloon none -monitor stdio -cpu qemu64,+sse2 -notify all 2.start guest B: /usr/libexec/qemu-kvm -m 4G -smp 4 -name np1 -uuid 3a362be4-61c3-9780-7169-be9599b7e93b -no-kvm-pit-reinjection -boot dc -drive file=/home/mike1,if=virtio,boot=on,format=qcow2,cache=none,werror=stop -net nic,macaddr=14:52:30:1a:8b:c2,vlan=0,model=virtio -net tap,script=/etc/qemu-ifup,vlan=0 -usb -vnc :11 -k en-us -vga cirrus -balloon none -monitor stdio -cpu qemu64,+sse2 -notify all 3.in guest B ,#arp -i eth0 -s <ip of guest A> <macaddr of guest A> 4,in guest B ,ping guest A # ping <ip of guest A> -c 1 5,in guest A ,#ifdown eth0 6,in guest B ,ping guest A # ping <ip of guest A> -i 0.01 7,after more or less 1 min ,kill guest B #kill -9 <pid of guest B> Actual Results: root 5601 4838 5 02:14 pts/1 00:00:42 [qemu-kvm] <defunct> dmesg on the host: kernel: unregister_netdevice: waiting for tap1 to become free. Usage count = 1 addtional info: cat /sys/class/net/tap0/statistics/tx_fifo_errors (guest A) 1 Base on above ,this issue haven't been fixed . |