OpenStack Nova Compute Charm

Bug #1771662
Comment #24

Comment 24 for bug 1771662

Revision history for this message

Jason Hobbs (jason-hobbs) wrote on 2018-05-22: Re: [Bug 1771662] Re: libvirtError: Node device not found: no node device with matching name

#24

ok; looks like that 4.15.0-22-generic just released and wasn't what I
used in the first reproduction... I doubt that's it.

On Tue, May 22, 2018 at 4:58 PM, Ryan Harper <email address hidden> wrote:
> Comparing the kernel logs, on Xenial, the second nic comes up:
>
> May 22 15:00:27 aurorus kernel: [ 24.840500] IPv6:
> ADDRCONF(NETDEV_UP): enP2p1s0f2: link is not ready
> May 22 15:00:27 aurorus kernel: [ 25.472391] thunder-nicvf
> 0002:01:00.2 enP2p1s0f2: Link is Up 10000 Mbps Full duplex
>
> But on bionic, we only ever have f3 up. Note this isn't a network
> configuration, but rather the state of the Nic and the switch.
> It doesn't appear to matter, 0f3 is what get's bridged by juju anyhow.
> But it does suggest that something is different.
>
> There is a slight kernel version variance as well:
>
> Xenial:
> May 22 15:00:27 aurorus kernel: [ 0.000000] Linux version
> 4.15.0-22-generic (buildd@bos02-arm64-038) (gcc version 5.4.0 20160609
> (Ubuntu/Lin
>
> Bionic:
> May 17 18:03:47 aurorus kernel: [ 0.000000] Linux version
> 4.15.0-20-generic (buildd@bos02-arm64-029) (gcc version 7.3.0
> (Ubuntu/Linaro 7.3.
>
> Looks like Xenial does not use unified cgroup namespaces, not sure
> what affect this may have on what's running in those lxd juju
> containers.
>
> % grep DENIED *.log
> bionic.log:May 17 18:19:33 aurorus kernel: [ 983.592228] audit:
> type=1400 audit(1526581173.043:70): apparmor="DENIED"
> operation="mount" info="failed flags match" error=-13
> profile="lxd-juju-657fe9-1-lxd-1_</var/lib/lxd>"
> name="/sys/fs/cgroup/unified/" pid=24143 comm="systemd"
> fstype="cgroup2" srcname="cgroup" flags="rw, nosuid, nodev, noexec"
> bionic.log:May 17 18:19:33 aurorus kernel: [ 983.592476] audit:
> type=1400 audit(1526581173.043:71): apparmor="DENIED"
> operation="mount" info="failed flags match" error=-13
> profile="lxd-juju-657fe9-1-lxd-1_</var/lib/lxd>"
> name="/sys/fs/cgroup/unified/" pid=24143 comm="systemd"
> fstype="cgroup2" srcname="cgroup" flags="rw, nosuid, nodev, noexec"
> bionic.log:May 17 18:19:41 aurorus kernel: [ 991.818402] audit:
> type=1400 audit(1526581181.267:88): apparmor="DENIED"
> operation="mount" info="failed flags match" error=-13
> profile="lxd-juju-657fe9-1-lxd-1_</var/lib/lxd>"
> name="/run/systemd/unit-root/var/lib/lxcfs/" pid=24757
> comm="(networkd)" flags="ro, nosuid, nodev, remount, bind"
> bionic.log:May 17 18:19:46 aurorus kernel: [ 997.271203] audit:
> type=1400 audit(1526581186.719:90): apparmor="DENIED"
> operation="mount" info="failed flags match" error=-13
> profile="lxd-juju-657fe9-1-lxd-2_</var/lib/lxd>"
> name="/sys/fs/cgroup/unified/" pid=25227 comm="systemd"
> fstype="cgroup2" srcname="cgroup" flags="rw, nosuid, nodev, noexec"
> bionic.log:May 17 18:19:46 aurorus kernel: [ 997.271425] audit:
> type=1400 audit(1526581186.723:91): apparmor="DENIED"
> operation="mount" info="failed flags match" error=-13
> profile="lxd-juju-657fe9-1-lxd-2_</var/lib/lxd>"
> name="/sys/fs/cgroup/unified/" pid=25227 comm="systemd"
> fstype="cgroup2" srcname="cgroup" flags="rw, nosuid, nodev, noexec"
> bionic.log:May 17 18:19:55 aurorus kernel: [ 1006.285863] audit:
> type=1400 audit(1526581195.735:108): apparmor="DENIED"
> operation="mount" info="failed flags match" error=-13
> profile="lxd-juju-657fe9-1-lxd-2_</var/lib/lxd>"
> name="/run/systemd/unit-root/" pid=26209 comm="(networkd)" flags="ro,
> remount, bind"
> bionic.log:May 17 18:20:12 aurorus kernel: [ 1022.760512] audit:
> type=1400 audit(1526581212.211:110): apparmor="DENIED"
> operation="mount" info="failed flags match" error=-13
> profile="lxd-juju-657fe9-1-lxd-0_</var/lib/lxd>"
> name="/sys/fs/cgroup/unified/" pid=28344 comm="systemd"
> fstype="cgroup2" srcname="cgroup" flags="rw, nosuid, nodev, noexec"
> bionic.log:May 17 18:20:12 aurorus kernel: [ 1022.760713] audit:
> type=1400 audit(1526581212.211:111): apparmor="DENIED"
> operation="mount" info="failed flags match" error=-13
> profile="lxd-juju-657fe9-1-lxd-0_</var/lib/lxd>"
> name="/sys/fs/cgroup/unified/" pid=28344 comm="systemd"
> fstype="cgroup2" srcname="cgroup" flags="rw, nosuid, nodev, noexec"
> bionic.log:May 17 18:20:20 aurorus kernel: [ 1031.256448] audit:
> type=1400 audit(1526581220.707:128): apparmor="DENIED"
> operation="mount" info="failed flags match" error=-13
> profile="lxd-juju-657fe9-1-lxd-0_</var/lib/lxd>"
> name="/run/systemd/unit-root/" pid=29205 comm="(networkd)" flags="ro,
> remount, bind"
> bionic.log:May 17 18:30:03 aurorus kernel: [ 1613.787782] audit:
> type=1400 audit(1526581803.277:151): apparmor="DENIED"
> operation="mount" info="failed flags match" error=-13
> profile="lxd-juju-657fe9-1-lxd-0_</var/lib/lxd>" name="/bin/"
> pid=91926 comm="(arter.sh)" flags="ro, remount, bind"
> bionic.log:May 17 18:30:03 aurorus kernel: [ 1613.832621] audit:
> type=1400 audit(1526581803.321:152): apparmor="DENIED"
> operation="mount" info="failed flags match" error=-13
> profile="lxd-juju-657fe9-1-lxd-0_</var/lib/lxd>" name="/bin/"
> pid=91949 comm="(y-helper)" flags="ro, remount, bind"
>
>
> xenial.log:May 22 15:15:10 aurorus kernel: [ 918.311740] audit:
> type=1400 audit(1527002110.131:109): apparmor="DENIED"
> operation="file_mmap"
> namespace="root//lxd-juju-878ab5-1-lxd-1_<var-lib-lxd>"
> profile="/usr/lib/lxd/lxd-bridge-proxy"
> name="/usr/lib/lxd/lxd-bridge-proxy" pid=40973 comm="lxd-bridge-prox"
> requested_mask="m" denied_mask="m" fsuid=100000 ouid=100000
> xenial.log:May 22 15:15:11 aurorus kernel: [ 919.605481] audit:
> type=1400 audit(1527002111.427:115): apparmor="DENIED"
> operation="file_mmap"
> namespace="root//lxd-juju-878ab5-1-lxd-2_<var-lib-lxd>"
> profile="/usr/lib/lxd/lxd-bridge-proxy"
> name="/usr/lib/lxd/lxd-bridge-proxy" pid=41233 comm="lxd-bridge-prox"
> requested_mask="m" denied_mask="m" fsuid=100000 ouid=100000
>
> Looking at the nova.pci.utils code, the different errors seem to be
> related to sysfs entries:
>
> https://git.openstack.org/cgit/openstack/nova/tree/nova/pci/utils.py?id=e919720e08fae5c07cecda00ac2d51b0a09f533e#n196
>
> If the sysfs path exists, then we go "further down" the hole and get
> an error like in bionic, but if the sysfs path does not exist, then we
> get
> the exception we see in Xenial.
>
> Can we get a tar of /sys for both to see if this confirms the
> suspicion that we're taking different paths due to differing kernels?
>
>
> On Tue, May 22, 2018 at 3:27 PM, Jason Hobbs <email address hidden> wrote:
>> marked new on nova-compute-charm due to rharper's comment #18, and new
>> on libvirt because I've posted all the requested logs now.
>>
>> --
>> You received this bug notification because you are subscribed to the bug
>> report.
>> https://bugs.launchpad.net/bugs/1771662
>>
>> Title:
>> libvirtError: Node device not found: no node device with matching name
>>
>> To manage notifications about this bug go to:
>> https://bugs.launchpad.net/charm-nova-compute/+bug/1771662/+subscriptions
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1771662
>
> Title:
> libvirtError: Node device not found: no node device with matching name
>
> Status in OpenStack nova-compute charm:
> New
> Status in libvirt package in Ubuntu:
> New
>
> Bug description:
> After deploying openstack on arm64 using bionic and queens, no
> hypervisors show upon. On my compute nodes, I have an error like:
>
> 2018-05-16 19:23:08.165 282170 ERROR nova.compute.manager
> libvirtError: Node device not found: no node device with matching name
> 'net_enP2p1s0f1_40_8d_5c_ba_b8_d2'
>
> In my /var/log/nova/nova-compute.log
>
> I'm not sure why this is happening - I don't use enP2p1s0f1 for
> anything.
>
> There are a lot of interesting messages about that interface in syslog:
> http://paste.ubuntu.com/p/8WT8NqCbCf/
>
> Here is my bundle: http://paste.ubuntu.com/p/fWWs6r8Nr5/
>
> The same bundle works fine for xenial-queens, with the source changed
> to the cloud-archive, and using stable charms rather than -next. I hit
> this same issue on bionic queens using either stable or next charms.
>
> This thread has some related info, I think:
> https://www.spinics.net/linux/fedora/libvir/msg160975.html
>
> This is with juju 2.4 beta 2.
>
> Package versions on affected system:
> http://paste.ubuntu.com/p/yfQH3KJzng/
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/charm-nova-compute/+bug/1771662/+subscriptions

ok; looks like that 4.15.0-22-generic just released and wasn't what I
used in the first reproduction... I doubt that's it.

On Tue, May 22, 2018 at 4:58 PM, Ryan Harper <1771662@bugs.launchpad.net> wrote:
> Comparing the kernel logs, on Xenial, the second nic comes up:
>
> May 22 15:00:27 aurorus kernel: [   24.840500] IPv6:
> ADDRCONF(NETDEV_UP): enP2p1s0f2: link is not ready
> May 22 15:00:27 aurorus kernel: [   25.472391] thunder-nicvf
> 0002:01:00.2 enP2p1s0f2: Link is Up 10000 Mbps Full duplex
>
> But on bionic, we only ever have f3 up.  Note this isn't a network
> configuration, but rather the state of the Nic and the switch.
> It doesn't appear to matter, 0f3 is what get's bridged by juju anyhow.
> But it does suggest that something is different.
>
> There is a slight kernel version variance as well:
>
> Xenial:
> May 22 15:00:27 aurorus kernel: [    0.000000] Linux version
> 4.15.0-22-generic (buildd@bos02-arm64-038) (gcc version 5.4.0 20160609
> (Ubuntu/Lin
>
> Bionic:
> May 17 18:03:47 aurorus kernel: [    0.000000] Linux version
> 4.15.0-20-generic (buildd@bos02-arm64-029) (gcc version 7.3.0
> (Ubuntu/Linaro 7.3.
>
> Looks like Xenial does not use unified cgroup namespaces, not sure
> what affect this may have on what's running in those lxd juju
> containers.
>
> % grep DENIED *.log
> bionic.log:May 17 18:19:33 aurorus kernel: [  983.592228] audit:
> type=1400 audit(1526581173.043:70): apparmor="DENIED"
> operation="mount" info="failed flags match" error=-13
> profile="lxd-juju-657fe9-1-lxd-1_</var/lib/lxd>"
> name="/sys/fs/cgroup/unified/" pid=24143 comm="systemd"
> fstype="cgroup2" srcname="cgroup" flags="rw, nosuid, nodev, noexec"
> bionic.log:May 17 18:19:33 aurorus kernel: [  983.592476] audit:
> type=1400 audit(1526581173.043:71): apparmor="DENIED"
> operation="mount" info="failed flags match" error=-13
> profile="lxd-juju-657fe9-1-lxd-1_</var/lib/lxd>"
> name="/sys/fs/cgroup/unified/" pid=24143 comm="systemd"
> fstype="cgroup2" srcname="cgroup" flags="rw, nosuid, nodev, noexec"
> bionic.log:May 17 18:19:41 aurorus kernel: [  991.818402] audit:
> type=1400 audit(1526581181.267:88): apparmor="DENIED"
> operation="mount" info="failed flags match" error=-13
> profile="lxd-juju-657fe9-1-lxd-1_</var/lib/lxd>"
> name="/run/systemd/unit-root/var/lib/lxcfs/" pid=24757
> comm="(networkd)" flags="ro, nosuid, nodev, remount, bind"
> bionic.log:May 17 18:19:46 aurorus kernel: [  997.271203] audit:
> type=1400 audit(1526581186.719:90): apparmor="DENIED"
> operation="mount" info="failed flags match" error=-13
> profile="lxd-juju-657fe9-1-lxd-2_</var/lib/lxd>"
> name="/sys/fs/cgroup/unified/" pid=25227 comm="systemd"
> fstype="cgroup2" srcname="cgroup" flags="rw, nosuid, nodev, noexec"
> bionic.log:May 17 18:19:46 aurorus kernel: [  997.271425] audit:
> type=1400 audit(1526581186.723:91): apparmor="DENIED"
> operation="mount" info="failed flags match" error=-13
> profile="lxd-juju-657fe9-1-lxd-2_</var/lib/lxd>"
> name="/sys/fs/cgroup/unified/" pid=25227 comm="systemd"
> fstype="cgroup2" srcname="cgroup" flags="rw, nosuid, nodev, noexec"
> bionic.log:May 17 18:19:55 aurorus kernel: [ 1006.285863] audit:
> type=1400 audit(1526581195.735:108): apparmor="DENIED"
> operation="mount" info="failed flags match" error=-13
> profile="lxd-juju-657fe9-1-lxd-2_</var/lib/lxd>"
> name="/run/systemd/unit-root/" pid=26209 comm="(networkd)" flags="ro,
> remount, bind"
> bionic.log:May 17 18:20:12 aurorus kernel: [ 1022.760512] audit:
> type=1400 audit(1526581212.211:110): apparmor="DENIED"
> operation="mount" info="failed flags match" error=-13
> profile="lxd-juju-657fe9-1-lxd-0_</var/lib/lxd>"
> name="/sys/fs/cgroup/unified/" pid=28344 comm="systemd"
> fstype="cgroup2" srcname="cgroup" flags="rw, nosuid, nodev, noexec"
> bionic.log:May 17 18:20:12 aurorus kernel: [ 1022.760713] audit:
> type=1400 audit(1526581212.211:111): apparmor="DENIED"
> operation="mount" info="failed flags match" error=-13
> profile="lxd-juju-657fe9-1-lxd-0_</var/lib/lxd>"
> name="/sys/fs/cgroup/unified/" pid=28344 comm="systemd"
> fstype="cgroup2" srcname="cgroup" flags="rw, nosuid, nodev, noexec"
> bionic.log:May 17 18:20:20 aurorus kernel: [ 1031.256448] audit:
> type=1400 audit(1526581220.707:128): apparmor="DENIED"
> operation="mount" info="failed flags match" error=-13
> profile="lxd-juju-657fe9-1-lxd-0_</var/lib/lxd>"
> name="/run/systemd/unit-root/" pid=29205 comm="(networkd)" flags="ro,
> remount, bind"
> bionic.log:May 17 18:30:03 aurorus kernel: [ 1613.787782] audit:
> type=1400 audit(1526581803.277:151): apparmor="DENIED"
> operation="mount" info="failed flags match" error=-13
> profile="lxd-juju-657fe9-1-lxd-0_</var/lib/lxd>" name="/bin/"
> pid=91926 comm="(arter.sh)" flags="ro, remount, bind"
> bionic.log:May 17 18:30:03 aurorus kernel: [ 1613.832621] audit:
> type=1400 audit(1526581803.321:152): apparmor="DENIED"
> operation="mount" info="failed flags match" error=-13
> profile="lxd-juju-657fe9-1-lxd-0_</var/lib/lxd>" name="/bin/"
> pid=91949 comm="(y-helper)" flags="ro, remount, bind"
>
>
> xenial.log:May 22 15:15:10 aurorus kernel: [  918.311740] audit:
> type=1400 audit(1527002110.131:109): apparmor="DENIED"
> operation="file_mmap"
> namespace="root//lxd-juju-878ab5-1-lxd-1_<var-lib-lxd>"
> profile="/usr/lib/lxd/lxd-bridge-proxy"
> name="/usr/lib/lxd/lxd-bridge-proxy" pid=40973 comm="lxd-bridge-prox"
> requested_mask="m" denied_mask="m" fsuid=100000 ouid=100000
> xenial.log:May 22 15:15:11 aurorus kernel: [  919.605481] audit:
> type=1400 audit(1527002111.427:115): apparmor="DENIED"
> operation="file_mmap"
> namespace="root//lxd-juju-878ab5-1-lxd-2_<var-lib-lxd>"
> profile="/usr/lib/lxd/lxd-bridge-proxy"
> name="/usr/lib/lxd/lxd-bridge-proxy" pid=41233 comm="lxd-bridge-prox"
> requested_mask="m" denied_mask="m" fsuid=100000 ouid=100000
>
> Looking at the nova.pci.utils code, the different errors seem to be
> related to sysfs entries:
>
> https://git.openstack.org/cgit/openstack/nova/tree/nova/pci/utils.py?id=e919720e08fae5c07cecda00ac2d51b0a09f533e#n196
>
> If the sysfs path exists, then we go "further down" the hole and get
> an error like in bionic, but if the sysfs path does not exist, then we
> get
> the exception we see in Xenial.
>
> Can we get a tar of /sys for both to see if this confirms the
> suspicion that we're taking different paths due to differing kernels?
>
>
> On Tue, May 22, 2018 at 3:27 PM, Jason Hobbs <jason.hobbs@canonical.com> wrote:
>> marked new on nova-compute-charm due to rharper's comment #18, and new
>> on libvirt because I've posted all the requested logs now.
>>
>> --
>> You received this bug notification because you are subscribed to the bug
>> report.
>> https://bugs.launchpad.net/bugs/1771662
>>
>> Title:
>>   libvirtError: Node device not found: no node device with matching name
>>
>> To manage notifications about this bug go to:
>> https://bugs.launchpad.net/charm-nova-compute/+bug/1771662/+subscriptions
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1771662
>
> Title:
>   libvirtError: Node device not found: no node device with matching name
>
> Status in OpenStack nova-compute charm:
>   New
> Status in libvirt package in Ubuntu:
>   New
>
> Bug description:
>   After deploying openstack on arm64 using bionic and queens, no
>   hypervisors show upon. On my compute nodes, I have an error like:
>
>   2018-05-16 19:23:08.165 282170 ERROR nova.compute.manager
>   libvirtError: Node device not found: no node device with matching name
>   'net_enP2p1s0f1_40_8d_5c_ba_b8_d2'
>
>   In my /var/log/nova/nova-compute.log
>
>   I'm not sure why this is happening - I don't use enP2p1s0f1 for
>   anything.
>
>   There are a lot of interesting messages about that interface in syslog:
>   http://paste.ubuntu.com/p/8WT8NqCbCf/
>
>   Here is my bundle: http://paste.ubuntu.com/p/fWWs6r8Nr5/
>
>   The same bundle works fine for xenial-queens, with the source changed
>   to the cloud-archive, and using stable charms rather than -next. I hit
>   this same issue on bionic queens using either stable or next charms.
>
>   This thread has some related info, I think:
>   https://www.spinics.net/linux/fedora/libvir/msg160975.html
>
>   This is with juju 2.4 beta 2.
>
>   Package versions on affected system:
>   http://paste.ubuntu.com/p/yfQH3KJzng/
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/charm-nova-compute/+bug/1771662/+subscriptions