[Bug 940530] New: Bridge stopping bridging

http://bugzilla.opensuse.org/show_bug.cgi?id=940530 Bug ID: 940530 Summary: Bridge stopping bridging Classification: openSUSE Product: openSUSE Distribution Version: 13.2 Hardware: x86-64 OS: openSUSE 13.2 Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: kernel-maintainers@forge.provo.novell.com Reporter: marco.brignoli@marcobaldo.ch QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- I'm running the following configuration: # brctl show bridge name bridge id STP enabled interfaces br0 8000.000000000000 no br1 8000.000ae72c442a no enp5s0 vnet0 vnet2 br2 8000.fe5400884ea1 no vnet1 vnet4 vnet7 br3 8000.fe5400b6254b no vnet3 vnet5 vnet8 br4 8000.fe540056bde0 no vnet6 vnet9 # uname -a Linux linux-8dae 3.16.7-21-desktop #1 SMP PREEMPT Tue Apr 14 07:11:37 UTC 2015 (93c1539) x86_64 x86_64 x86_64 GNU/Linux # modinfo bridge filename: /lib/modules/3.16.7-21-desktop/kernel/net/bridge/bridge.ko alias: rtnl-link-bridge version: 2.3 license: GPL srcversion: 9745B10185954B34BA9A365 depends: stp,llc intree: Y vermagic: 3.16.7-21-desktop SMP preempt mod_unload modversions signer: openSUSE Secure Boot Signkey sig_key: 03:32:FA:9C:BF:0D:88:BF:21:92:4B:0D:E8:2A:09:A5:4D:5D:EF:C8 sig_hashalgo: sha256 # modinfo r8168 filename: /lib/modules/3.16.7-21-desktop/kernel/drivers/net/ethernet/realtek/r8168.ko version: 8.039.00-NAPI license: GPL description: RealTek RTL-8168 Gigabit Ethernet driver author: Realtek and the Linux r8168 crew srcversion: 1ABAB2C5CDB55DDB867B0D8 alias: pci:v00001186d00004300sv00001186sd00004B10bc*sc*i* alias: pci:v000010ECd00008168sv*sd*bc*sc*i* depends: vermagic: 3.16.7-7-desktop SMP preempt mod_unload modversions parm: speed:force phy operation. Deprecated by ethtool (8). (ushort) parm: duplex:force phy operation. Deprecated by ethtool (8). (int) parm: autoneg:force phy operation. Deprecated by ethtool (8). (int) parm: aspm:Enable ASPM. (int) parm: s5wol:Enable Shutdown Wake On Lan. (int) parm: rx_copybreak:Copy breakpoint for copy-only-tiny-frames (int) parm: timer_count:Timer Interrupt Interval. (int) parm: eee_enable:Enable Energy Efficient Ethernet. (int) parm: debug:Debug verbosity level (0=none, ..., 16=all) (int) # modinfo vhost_net filename: /lib/modules/3.16.7-21-desktop/kernel/drivers/vhost/vhost_net.ko alias: devname:vhost-net alias: char-major-10-238 description: Host kernel accelerator for virtio net author: Michael S. Tsirkin license: GPL v2 version: 0.0.1 srcversion: FB9CD9FD03A82F6981775C2 depends: vhost,tun,macvtap intree: Y vermagic: 3.16.7-21-desktop SMP preempt mod_unload modversions signer: openSUSE Secure Boot Signkey sig_key: 03:32:FA:9C:BF:0D:88:BF:21:92:4B:0D:E8:2A:09:A5:4D:5D:EF:C8 sig_hashalgo: sha256 parm: experimental_zcopytx:Enable Zero Copy TX; 1 -Enable; 0 - Disable (int) Randomly the br1 bridge stops to bridge traffic and it is impossible to recover without restarting the system, even if I delete and reconfigure the bridge. The enp5s0 and the vnet (KVM hosts) interfaces are working without any apparent problem, i.e. tcpdump shows unbridged traffic. Unfortunately I could not find any error message (dmesg, journalctl, etc) that can be of any help. I did also try to log the traffic with ebtables but nothing interesting/relevant is displayed. Now the question is how I can produce meaningful debugging information, i.e. a dump of the internal tables is have read are used by the bridge module, unfortunately I did not find any useful information on how I can provide this information. Tnx and have a nice day Marco -- You are receiving this mail because: You are on the CC list for the bug.