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Description of problem: Command "virsh iface-dumpxml ..." will got an error like "error: XML error: bond interface misses the bond element" when we want to check the bond interface's xml file. It happened when netcf's version is 0.1.9-1. The version of 0.1.8-1 and 0.1.7-1 have no this problem. Version-Release number of selected component (if applicable): libvirt-0.9.4-10.el6.x86_64 netcf-0.1.9-1.el6.x86_64 How reproducible: always Steps to Reproduce: Need two NIC, eth0 and eth1 1.Create a file with content below, assuming the name is bond0.xml: <interface type='bond' name='bond0'> <start mode='none'/> <protocol family='ipv4'> <dhcp/> </protocol> <bond mode='active-backup'> <miimon freq='100' updelay='10' carrier='ioctl'/> <interface type='ethernet' name='eth0'> </interface> <interface type='ethernet' name='eth1'> </interface> </bond> </interface> 2.stop NetworkManager service # service NetworkManager stop and restart network service. # service network restart 3.Define new bond0 # virsh iface-define bond0.xml # virsh iface-start bond0 4. Check the new bond0 # virsh iface-dumpxml bond0 Actual results: Actually, we will got "error: XML error: bond interface misses the bond element" Expected results: Show the detail information about the bond0. It should be the same with bond0.xml. Additional info:
The following has been posted for review upstream (not showing up in the archives yet, so I can't just paste a link): commit 2637ff98c0cd1ff6712068d990bc7f8e6ad13c30 Author: Laine Stump <laine> Date: Thu Sep 22 01:40:48 2011 -0400 Fix missing vlan/bond/ethernet info in dumpxml --live This patch addresses: https://bugzilla.redhat.com/show_bug.cgi?id=736920 https://bugzilla.redhat.com/show_bug.cgi?id=739505 Commit 38f44cf (pushed between 0.1.8 and 0.1.9) put a check for an invalid ifindex into the functions that add type-specific status data to the xml document (e.g. the mac address of an ethernet, or tag of a vlan). This check was inadvertently done incorrectly ("ifindex != RTNL_LINK_NOT_FOUND" rather than "ifindex == RTNL_LINK_NOT_FOUND"). This patch corrects that error. Because these functions are a part of the code to gather info from the kernel via libnl (netlink) calls, there is unfortunately no simple way to incorporate a build-time test to prevent similar regressions in the future; we will instead have to rely on separate testing. diff --git a/src/dutil_linux.c b/src/dutil_linux.c index 75492ba..730be45 100644 --- a/src/dutil_linux.c +++ b/src/dutil_linux.c @@ -909,7 +909,7 @@ static void add_ethernet_info(struct netcf *ncf, struct rtnl_link *filter_link = NULL; /* if interface isn't currently available, nothing to add */ - if (ifindex != RTNL_LINK_NOT_FOUND) + if (ifindex == RTNL_LINK_NOT_FOUND) return; filter_link = rtnl_link_alloc(); @@ -998,7 +998,7 @@ static void add_vlan_info(struct netcf *ncf, struct rtnl_link *filter_link = NULL; /* if interface isn't currently available, nothing to add */ - if (ifindex != RTNL_LINK_NOT_FOUND) + if (ifindex == RTNL_LINK_NOT_FOUND) return; filter_link = rtnl_link_alloc(); @@ -1113,7 +1113,7 @@ static void add_bond_info(struct netcf *ncf, = { doc, root, NULL, ifindex, ncf }; /* if interface isn't currently available, nothing to add */ - if (ifindex != RTNL_LINK_NOT_FOUND) + if (ifindex == RTNL_LINK_NOT_FOUND) return; nl_cache_foreach(ncf->driver->link_cache, add_bond_info_cb, &cb_data);
A fix for this bug is available in a new netcf build for RHEL6: https://brewweb.devel.redhat.com/buildinfo?buildID=180923
tested with libvirt-0.9.4-13.el6.x86_64 netcf-0.1.9-2.el6.x86_64 Steps: 1.Create a file with content below, assuming the name is bond0.xml: <interface type='bond' name='bond0'> <start mode='none'/> <protocol family='ipv4'> <dhcp/> </protocol> <bond mode='active-backup'> <miimon freq='100' updelay='10' carrier='ioctl'/> <interface type='ethernet' name='eth0'> </interface> <interface type='ethernet' name='eth1'> </interface> </bond> </interface> 2.stop NetworkManager service # service NetworkManager stop and restart network service. # service network restart 3.Define new bond0 # virsh iface-define bond0.xml # virsh iface-start bond0 4. Check the new bond0 # virsh iface-dumpxml bond0 <interface type='bond' name='bond0'> <bond> <interface type='ethernet' name='eth0'> <mac address='00:21:9b:57:9f:58'/> </interface> <interface type='ethernet' name='eth1'> <mac address='00:21:9b:57:9f:59'/> </interface> </bond> </interface> According to above , set bug status to VERIFIED
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2011-1631.html