New point release including fix for this bug uploaded to trusty-proposed for SRU team review.
** Description changed: - this crash has been observed a few times on this particular openstack - cloud; result in loss of network connectivity to instances running on - the hypervisor. + [Impact] + Userspace daemon dies and all flows are lost during instance teardown on OpenStack hypervisor nodes; result is that all instances lose network access on the impacted server. + + [Test Case] + Deploy openstack (sounds easy right); use it regularly and at some point instance termination will result in the userspace daemon dieing. + + [Regression potential] + Limited; the fix is included in a new upstream point release which is covered by the usual upstream testing. + + [Original Bug Report] + this crash has been observed a few times on this particular openstack cloud; result in loss of network connectivity to instances running on the hypervisor. ProblemType: Crash DistroRelease: Ubuntu 14.04 Package: openvswitch-switch 2.0.1+git20140120-0ubuntu2 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 Date: Mon Aug 4 18:10:16 2014 ExecutablePath: /usr/sbin/ovs-vswitchd ExecutableTimestamp: 1393166598 ProcCmdline: ovs-vswitchd unix:/var/run/openvswitch/db.sock -vconsole:emer -vsyslog:err -vfile:info --mlockall --no-chdir --log-file=/var/log/openvswitch/ovs-vswitchd.log --pidfile=/var/run/openvswitch/ovs-vswitchd.pid --detach --monitor ProcCwd: / ProcEnviron: - TERM=linux - PATH=(custom, no user) + TERM=linux + PATH=(custom, no user) SegvAnalysis: - Segfault happened at: 0x459110 <nl_attr_get_size>: movzwl (%rdi),%eax - PC (0x00459110) ok - source "(%rdi)" (0x00000000) not located in a known VMA region (needed readable region)! - destination "%eax" ok + Segfault happened at: 0x459110 <nl_attr_get_size>: movzwl (%rdi),%eax + PC (0x00459110) ok + source "(%rdi)" (0x00000000) not located in a known VMA region (needed readable region)! + destination "%eax" ok SegvReason: reading NULL VMA Signal: 11 SourcePackage: openvswitch StacktraceTop: - nl_attr_get_size (nla=nla@entry=0x0) at ../lib/netlink.c:506 - format_generic_odp_key (a=a@entry=0x0, ds=ds@entry=0x7fff9005e1e0) at ../lib/odp-util.c:767 - format_odp_key_attr (a=a@entry=0xc5e990, ma=ma@entry=0x0, ds=ds@entry=0x7fff9005e1e0, verbose=verbose@entry=true) at ../lib/odp-util.c:1331 - odp_flow_format (key=key@entry=0xc5e920, key_len=key_len@entry=120, mask=mask@entry=0x0, mask_len=mask_len@entry=0, ds=ds@entry=0x7fff9005e1e0, verbose=verbose@entry=true) at ../lib/odp-util.c:1401 - log_flow_message (error=error@entry=2, operation=operation@entry=0x4d0b93 "flow_del", key=0xc5e920, key_len=120, mask=mask@entry=0x0, mask_len=mask_len@entry=0, stats=0x0, actions=actions@entry=0x0, actions_len=actions_len@entry=0, dpif=<optimized out>) at ../lib/dpif.c:1354 + nl_attr_get_size (nla=nla@entry=0x0) at ../lib/netlink.c:506 + format_generic_odp_key (a=a@entry=0x0, ds=ds@entry=0x7fff9005e1e0) at ../lib/odp-util.c:767 + format_odp_key_attr (a=a@entry=0xc5e990, ma=ma@entry=0x0, ds=ds@entry=0x7fff9005e1e0, verbose=verbose@entry=true) at ../lib/odp-util.c:1331 + odp_flow_format (key=key@entry=0xc5e920, key_len=key_len@entry=120, mask=mask@entry=0x0, mask_len=mask_len@entry=0, ds=ds@entry=0x7fff9005e1e0, verbose=verbose@entry=true) at ../lib/odp-util.c:1401 + log_flow_message (error=error@entry=2, operation=operation@entry=0x4d0b93 "flow_del", key=0xc5e920, key_len=120, mask=mask@entry=0x0, mask_len=mask_len@entry=0, stats=0x0, actions=actions@entry=0x0, actions_len=actions_len@entry=0, dpif=<optimized out>) at ../lib/dpif.c:1354 Title: ovs-vswitchd crashed with SIGSEGV in nl_attr_get_size() UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: ** Changed in: openvswitch (Ubuntu Utopic) Status: Triaged => Invalid ** Changed in: openvswitch (Ubuntu Trusty) Status: Triaged => In Progress -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1352570 Title: ovs-vswitchd crashed with SIGSEGV in nl_attr_get_size() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openvswitch/+bug/1352570/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs