Your message dated Sun, 10 May 2020 16:23:53 +0300 with message-id <[email protected]> and subject line Re: qemu: Guest network stops working several times a day has caused the Debian Bug report #816370, regarding qemu: Guest network stops working several times a day to be marked as done.
This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact [email protected] immediately.) -- 816370: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=816370 Debian Bug Tracking System Contact [email protected] with problems
--- Begin Message ---Package: qemu Version: 1:2.5+dfsg-4~bpo8+1 Severity: important Dear Maintainer, *** Reporter, please consider answering these questions, where appropriate *** * What led up to the situation? I have installed several VM inside a bigger host with two networks connecting to the internet. Inside, they are 192.168.1.0/24 and 192.168.2.0/24 Several times a day, unrelated to CPU load or to network load, one of the interfaces just stops working correctly and loses connectivity with router 1: >From inside the GUEST: Ping the router, then the HOST interface in the network 1: root@cygnus:~# ping 192.168.1.1 PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data. ^C --- 192.168.1.1 ping statistics --- 23 packets transmitted, 0 received, 100% packet loss, time 22175ms root@cygnus:~# ping 192.168.1.25 PING 192.168.1.25 (192.168.1.25) 56(84) bytes of data. 64 bytes from 192.168.1.25: icmp_seq=1 ttl=64 time=0.070 ms 64 bytes from 192.168.1.25: icmp_seq=2 ttl=64 time=0.117 ms ^C --- 192.168.1.25 ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 999ms rtt min/avg/max/mdev = 0.070/0.093/0.117/0.025 ms I could do this experiment because both HOST and GUEST have a card in network 2. * What exactly did you do (or not do) that was effective (or ineffective)? Rebooting the GUEST always resolves the issue, for a few hours *** End of the template - remove these template lines *** Network configuration details: ROUTER: 192.168.1.1 with port 25 redirected to 192.168.1.27 HOST: root@tochox:~# ifconfig br0 Link encap:Ethernet HWaddr 6c:f0:49:54:f4:ed inet addr:192.168.2.25 Bcast:192.168.2.255 Mask:255.255.255.0 inet6 addr: fe80::6ef0:49ff:fe54:f4ed/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:25896346 errors:0 dropped:8 overruns:0 frame:0 TX packets:16093550 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:12784846591 (11.9 GiB) TX bytes:23467943711 (21.8 GiB) br1 Link encap:Ethernet HWaddr 6c:f0:49:54:f4:eb inet addr:192.168.1.25 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::6ef0:49ff:fe54:f4eb/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:5848385 errors:0 dropped:0 overruns:0 frame:0 TX packets:3406134 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:5939478491 (5.5 GiB) TX bytes:487626261 (465.0 MiB) eth0 Link encap:Ethernet HWaddr 6c:f0:49:54:f4:ed UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:148811802 errors:0 dropped:0 overruns:0 frame:0 TX packets:271950438 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:13015991482 (12.1 GiB) TX bytes:400846637551 (373.3 GiB) eth1 Link encap:Ethernet HWaddr 6c:f0:49:54:f4:eb UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:7163625 errors:0 dropped:0 overruns:0 frame:0 TX packets:4675612 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:6687455351 (6.2 GiB) TX bytes:1664608027 (1.5 GiB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:3335470 errors:0 dropped:0 overruns:0 frame:0 TX packets:3335470 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:10121336640 (9.4 GiB) TX bytes:10121336640 (9.4 GiB) tun0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:10.9.0.1 P-t-P:10.9.0.2 Mask:255.255.255.255 UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) tun1 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:10.9.1.6 P-t-P:10.9.1.5 Mask:255.255.255.255 UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) vnet0 Link encap:Ethernet HWaddr fe:54:00:57:0a:cc inet6 addr: fe80::fc54:ff:fe57:acc/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:31532418 errors:0 dropped:0 overruns:0 frame:0 TX packets:141389409 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:500 RX bytes:376045797085 (350.2 GiB) TX bytes:9941576502 (9.2 GiB) vnet1 Link encap:Ethernet HWaddr fe:54:00:ac:36:89 inet6 addr: fe80::fc54:ff:feac:3689/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:32206 errors:0 dropped:0 overruns:0 frame:0 TX packets:3872385 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:500 RX bytes:4700829 (4.4 MiB) TX bytes:249210085 (237.6 MiB) vnet2 Link encap:Ethernet HWaddr fe:54:00:77:e7:eb inet6 addr: fe80::fc54:ff:fe77:e7eb/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:586597 errors:0 dropped:0 overruns:0 frame:0 TX packets:827949 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:500 RX bytes:1164488332 (1.0 GiB) TX bytes:72478697 (69.1 MiB) vnet3 Link encap:Ethernet HWaddr fe:54:00:72:5a:1d inet6 addr: fe80::fc54:ff:fe72:5a1d/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:530669 errors:0 dropped:0 overruns:0 frame:0 TX packets:4024075 errors:0 dropped:772 overruns:0 carrier:0 collisions:0 txqueuelen:500 RX bytes:136360498 (130.0 MiB) TX bytes:544888161 (519.6 MiB) vnet4 Link encap:Ethernet HWaddr fe:54:00:3c:ae:64 inet6 addr: fe80::fc54:ff:fe3c:ae64/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:69322 errors:0 dropped:0 overruns:0 frame:0 TX packets:98559 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:500 RX bytes:6647954 (6.3 MiB) TX bytes:53026810 (50.5 MiB) vnet5 Link encap:Ethernet HWaddr fe:54:00:8a:d6:1e inet6 addr: fe80::fc54:ff:fe8a:d61e/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:4482397 errors:0 dropped:0 overruns:0 frame:0 TX packets:6979025 errors:0 dropped:13 overruns:0 carrier:0 collisions:0 txqueuelen:500 RX bytes:1552972061 (1.4 GiB) TX bytes:7645573946 (7.1 GiB) vnet6 Link encap:Ethernet HWaddr fe:54:00:6f:ba:57 inet6 addr: fe80::fc54:ff:fe6f:ba57/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:12160 errors:0 dropped:0 overruns:0 frame:0 TX packets:145649 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:500 RX bytes:511276 (499.2 KiB) TX bytes:14511018 (13.8 MiB) vnet7 Link encap:Ethernet HWaddr fe:54:00:1b:22:f9 inet6 addr: fe80::fc54:ff:fe1b:22f9/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:7540103 errors:0 dropped:0 overruns:0 frame:0 TX packets:10250945 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:500 RX bytes:8468762925 (7.8 GiB) TX bytes:6830600959 (6.3 GiB) root@tochox:~# ip rule 0: from all lookup local 32765: from 192.168.1.0/24 lookup 1 32766: from all lookup main 32767: from all lookup default root@tochox:~# ip route show table 1 default via 192.168.1.1 dev br1 192.168.1.0/24 dev br1 proto kernel scope link GUEST: root@cygnus:~# ifconfig eth0 Link encap:Ethernet HWaddr 52:54:00:72:5a:1d inet addr:192.168.2.27 Bcast:192.168.2.255 Mask:255.255.255.0 inet6 addr: fe80::5054:ff:fe72:5a1d/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1297547 errors:0 dropped:76 overruns:0 frame:0 TX packets:71044 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:85911068 (81.9 MiB) TX bytes:28413829 (27.0 MiB) eth1 Link encap:Ethernet HWaddr 52:54:00:3c:ae:64 inet addr:192.168.1.27 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::5054:ff:fe3c:ae64/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:39972 errors:0 dropped:13 overruns:0 frame:0 TX packets:28209 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:22980133 (21.9 MiB) TX bytes:2833134 (2.7 MiB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) root@cygnus:~# ip rule 0: from all lookup local 32765: from 192.168.1.27 lookup 1 32766: from all lookup main 32767: from all lookup default root@cygnus:~# ip route show table 1 default via 192.168.1.25 dev eth1 192.168.1.0/24 dev eth1 proto kernel scope link src 192.168.1.27 -- System Information: Debian Release: 7.9 Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.3.0-1-amd64 (SMP w/4 CPU cores) Locale: LANG=es_ES.UTF-8, LC_CTYPE=es_ES.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: sysvinit (via /sbin/init) Versions of packages qemu depends on: ii qemu-system 1:2.5+dfsg-4~bpo8+1 ii qemu-user 1:2.5+dfsg-4~bpo8+1 ii qemu-utils 1:2.5+dfsg-4~bpo8+1 qemu recommends no packages. Versions of packages qemu suggests: pn qemu-user-static <none> -- debconf information: Unescaped left brace in regex is deprecated, passed through in regex; marked by <-- HERE in m/^(.*?)(\\)?\${ <-- HERE ([^{}]+)}(.*)$/ at /usr/share/perl5/Debconf/Question.pm line 72. Unescaped left brace in regex is deprecated, passed through in regex; marked by <-- HERE in m/\${ <-- HERE ([^}]+)}/ at /usr/share/perl5/Debconf/Config.pm line 30.
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--- Begin Message ---Version: 1:5.0-1 This is an old bugreport filed against old version of qemu and/or kernel, hopefully the issue in question has been fixed long ago, so closing this bugreport now. If the issue is still relevant today with current version of qemu and kernel, please reopen this bugreport. Thanks, /mjt
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