[jira] [Commented] (MESOS-4646) PortMappingIsolatorTests get kernel stuck.
[
https://issues.apache.org/jira/browse/MESOS-4646?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16708001#comment-16708001
]
Till Toenshoff commented on MESOS-4646:
---
We should try this on a more recent Kernel -- [~ipronin] suggested using a 4.9
or 4.14 -- will give that a spin as soon as possible.
> PortMappingIsolatorTests get kernel stuck.
> --
>
> Key: MESOS-4646
> URL: https://issues.apache.org/jira/browse/MESOS-4646
> Project: Mesos
> Issue Type: Bug
>Affects Versions: 1.8.0
> Environment: Linux Kernel 3.19.9-49-generic,
> libnl-3.2.27
>Reporter: Till Toenshoff
>Priority: Major
> Labels: flaky, flaky-test
>
> {noformat}
> $ sudo ./bin/mesos-tests.sh --gtest_filter="*PortMappingIsolatorTest*"
> Source directory: /home/till/scratchpad/mesos
> Build directory: /home/till/scratchpad/mesos/build
> -
> We cannot run any cgroups tests that require mounting
> hierarchies because you have the following hierarchies mounted:
> /sys/fs/cgroup/blkio, /sys/fs/cgroup/cpu, /sys/fs/cgroup/cpuacct,
> /sys/fs/cgroup/cpuset, /sys/fs/cgroup/devices, /sys/fs/cgroup/freezer,
> /sys/fs/cgroup/hugetlb, /sys/fs/cgroup/memory, /sys/fs/cgroup/net_cls,
> /sys/fs/cgroup/net_prio, /sys/fs/cgroup/perf_event, /sys/fs/cgroup/systemd
> We'll disable the CgroupsNoHierarchyTest test fixture for now.
> -
> WARNING: perf not found for kernel 3.19.0-49
> You may need to install the following packages for this specific kernel:
> linux-tools-3.19.0-49-generic
> linux-cloud-tools-3.19.0-49-generic
> You may also want to install one of the following packages to keep up to
> date:
> linux-tools-generic-lts-
> linux-cloud-tools-generic-lts-
> -
> No 'perf' command found so no 'perf' tests will be run
> -
> WARNING: perf not found for kernel 3.19.0-49
> You may need to install the following packages for this specific kernel:
> linux-tools-3.19.0-49-generic
> linux-cloud-tools-3.19.0-49-generic
> You may also want to install one of the following packages to keep up to
> date:
> linux-tools-generic-lts-
> linux-cloud-tools-generic-lts-
> -
> The 'perf' command wasn't found so tests using it
> to sample the 'cycles' hardware event will not be run.
> -
> /bin/nc
> /usr/local/bin/curl
> Note: Google Test filter =
>
[jira] [Commented] (MESOS-4646) PortMappingIsolatorTests get kernel stuck.
[
https://issues.apache.org/jira/browse/MESOS-4646?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16707993#comment-16707993
]
Till Toenshoff commented on MESOS-4646:
---
[~ipronin] do you have any cycles for looking into this?
> PortMappingIsolatorTests get kernel stuck.
> --
>
> Key: MESOS-4646
> URL: https://issues.apache.org/jira/browse/MESOS-4646
> Project: Mesos
> Issue Type: Bug
>Affects Versions: 1.8.0
> Environment: Linux Kernel 3.19.9-49-generic,
> libnl-3.2.27
>Reporter: Till Toenshoff
>Priority: Major
> Labels: flaky, flaky-test
>
> {noformat}
> $ sudo ./bin/mesos-tests.sh --gtest_filter="*PortMappingIsolatorTest*"
> Source directory: /home/till/scratchpad/mesos
> Build directory: /home/till/scratchpad/mesos/build
> -
> We cannot run any cgroups tests that require mounting
> hierarchies because you have the following hierarchies mounted:
> /sys/fs/cgroup/blkio, /sys/fs/cgroup/cpu, /sys/fs/cgroup/cpuacct,
> /sys/fs/cgroup/cpuset, /sys/fs/cgroup/devices, /sys/fs/cgroup/freezer,
> /sys/fs/cgroup/hugetlb, /sys/fs/cgroup/memory, /sys/fs/cgroup/net_cls,
> /sys/fs/cgroup/net_prio, /sys/fs/cgroup/perf_event, /sys/fs/cgroup/systemd
> We'll disable the CgroupsNoHierarchyTest test fixture for now.
> -
> WARNING: perf not found for kernel 3.19.0-49
> You may need to install the following packages for this specific kernel:
> linux-tools-3.19.0-49-generic
> linux-cloud-tools-3.19.0-49-generic
> You may also want to install one of the following packages to keep up to
> date:
> linux-tools-generic-lts-
> linux-cloud-tools-generic-lts-
> -
> No 'perf' command found so no 'perf' tests will be run
> -
> WARNING: perf not found for kernel 3.19.0-49
> You may need to install the following packages for this specific kernel:
> linux-tools-3.19.0-49-generic
> linux-cloud-tools-3.19.0-49-generic
> You may also want to install one of the following packages to keep up to
> date:
> linux-tools-generic-lts-
> linux-cloud-tools-generic-lts-
> -
> The 'perf' command wasn't found so tests using it
> to sample the 'cycles' hardware event will not be run.
> -
> /bin/nc
> /usr/local/bin/curl
> Note: Google Test filter =
>
[jira] [Commented] (MESOS-4646) PortMappingIsolatorTests get kernel stuck.
[
https://issues.apache.org/jira/browse/MESOS-4646?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16702567#comment-16702567
]
Till Toenshoff commented on MESOS-4646:
---
[~wangcong] we would love to get this solved as otherwise our CI keeps coming
back red. Would be terrific if you could try the given setup on this test.
> PortMappingIsolatorTests get kernel stuck.
> --
>
> Key: MESOS-4646
> URL: https://issues.apache.org/jira/browse/MESOS-4646
> Project: Mesos
> Issue Type: Bug
>Affects Versions: 1.8.0
> Environment: Linux Kernel 3.19.9-49-generic,
> libnl-3.2.27
>Reporter: Till Toenshoff
>Priority: Major
> Labels: flaky, flaky-test
>
> {noformat}
> $ sudo ./bin/mesos-tests.sh --gtest_filter="*PortMappingIsolatorTest*"
> Source directory: /home/till/scratchpad/mesos
> Build directory: /home/till/scratchpad/mesos/build
> -
> We cannot run any cgroups tests that require mounting
> hierarchies because you have the following hierarchies mounted:
> /sys/fs/cgroup/blkio, /sys/fs/cgroup/cpu, /sys/fs/cgroup/cpuacct,
> /sys/fs/cgroup/cpuset, /sys/fs/cgroup/devices, /sys/fs/cgroup/freezer,
> /sys/fs/cgroup/hugetlb, /sys/fs/cgroup/memory, /sys/fs/cgroup/net_cls,
> /sys/fs/cgroup/net_prio, /sys/fs/cgroup/perf_event, /sys/fs/cgroup/systemd
> We'll disable the CgroupsNoHierarchyTest test fixture for now.
> -
> WARNING: perf not found for kernel 3.19.0-49
> You may need to install the following packages for this specific kernel:
> linux-tools-3.19.0-49-generic
> linux-cloud-tools-3.19.0-49-generic
> You may also want to install one of the following packages to keep up to
> date:
> linux-tools-generic-lts-
> linux-cloud-tools-generic-lts-
> -
> No 'perf' command found so no 'perf' tests will be run
> -
> WARNING: perf not found for kernel 3.19.0-49
> You may need to install the following packages for this specific kernel:
> linux-tools-3.19.0-49-generic
> linux-cloud-tools-3.19.0-49-generic
> You may also want to install one of the following packages to keep up to
> date:
> linux-tools-generic-lts-
> linux-cloud-tools-generic-lts-
> -
> The 'perf' command wasn't found so tests using it
> to sample the 'cycles' hardware event will not be run.
> -
> /bin/nc
> /usr/local/bin/curl
> Note: Google Test filter =
>
[jira] [Commented] (MESOS-4646) PortMappingIsolatorTests get kernel stuck.
[
https://issues.apache.org/jira/browse/MESOS-4646?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16682116#comment-16682116
]
Till Toenshoff commented on MESOS-4646:
---
Just observed this again on Ubuntu16.04 (4.4 kernel) within our internal CI.
> PortMappingIsolatorTests get kernel stuck.
> --
>
> Key: MESOS-4646
> URL: https://issues.apache.org/jira/browse/MESOS-4646
> Project: Mesos
> Issue Type: Bug
>Affects Versions: 1.8.0
> Environment: Linux Kernel 3.19.9-49-generic,
> libnl-3.2.27
>Reporter: Till Toenshoff
>Priority: Major
>
> {noformat}
> $ sudo ./bin/mesos-tests.sh --gtest_filter="*PortMappingIsolatorTest*"
> Source directory: /home/till/scratchpad/mesos
> Build directory: /home/till/scratchpad/mesos/build
> -
> We cannot run any cgroups tests that require mounting
> hierarchies because you have the following hierarchies mounted:
> /sys/fs/cgroup/blkio, /sys/fs/cgroup/cpu, /sys/fs/cgroup/cpuacct,
> /sys/fs/cgroup/cpuset, /sys/fs/cgroup/devices, /sys/fs/cgroup/freezer,
> /sys/fs/cgroup/hugetlb, /sys/fs/cgroup/memory, /sys/fs/cgroup/net_cls,
> /sys/fs/cgroup/net_prio, /sys/fs/cgroup/perf_event, /sys/fs/cgroup/systemd
> We'll disable the CgroupsNoHierarchyTest test fixture for now.
> -
> WARNING: perf not found for kernel 3.19.0-49
> You may need to install the following packages for this specific kernel:
> linux-tools-3.19.0-49-generic
> linux-cloud-tools-3.19.0-49-generic
> You may also want to install one of the following packages to keep up to
> date:
> linux-tools-generic-lts-
> linux-cloud-tools-generic-lts-
> -
> No 'perf' command found so no 'perf' tests will be run
> -
> WARNING: perf not found for kernel 3.19.0-49
> You may need to install the following packages for this specific kernel:
> linux-tools-3.19.0-49-generic
> linux-cloud-tools-3.19.0-49-generic
> You may also want to install one of the following packages to keep up to
> date:
> linux-tools-generic-lts-
> linux-cloud-tools-generic-lts-
> -
> The 'perf' command wasn't found so tests using it
> to sample the 'cycles' hardware event will not be run.
> -
> /bin/nc
> /usr/local/bin/curl
> Note: Google Test filter =
>
[jira] [Commented] (MESOS-4646) PortMappingIsolatorTests get kernel stuck.
[
https://issues.apache.org/jira/browse/MESOS-4646?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15143334#comment-15143334
]
Cong Wang commented on MESOS-4646:
--
OK, the kernel stuck is probably another kernel bug, but without kernel stack
trace, I have no idea what bug it is. Could you please try to setup kdump to
capture the kernel crash/stuck?
BTW, here at Twitter we use 4.1 kernel + the above fix, I just repeated the
PortMappingIsolatorTest for 30 times, all passed. So maybe it is a new kernel
bug I never see before.
> PortMappingIsolatorTests get kernel stuck.
> --
>
> Key: MESOS-4646
> URL: https://issues.apache.org/jira/browse/MESOS-4646
> Project: Mesos
> Issue Type: Bug
> Environment: Linux Kernel 3.19.9-49-generic,
> libnl-3.2.27
>Reporter: Till Toenshoff
>Assignee: Cong Wang
>
> {noformat}
> $ sudo ./bin/mesos-tests.sh --gtest_filter="*PortMappingIsolatorTest*"
> Source directory: /home/till/scratchpad/mesos
> Build directory: /home/till/scratchpad/mesos/build
> -
> We cannot run any cgroups tests that require mounting
> hierarchies because you have the following hierarchies mounted:
> /sys/fs/cgroup/blkio, /sys/fs/cgroup/cpu, /sys/fs/cgroup/cpuacct,
> /sys/fs/cgroup/cpuset, /sys/fs/cgroup/devices, /sys/fs/cgroup/freezer,
> /sys/fs/cgroup/hugetlb, /sys/fs/cgroup/memory, /sys/fs/cgroup/net_cls,
> /sys/fs/cgroup/net_prio, /sys/fs/cgroup/perf_event, /sys/fs/cgroup/systemd
> We'll disable the CgroupsNoHierarchyTest test fixture for now.
> -
> WARNING: perf not found for kernel 3.19.0-49
> You may need to install the following packages for this specific kernel:
> linux-tools-3.19.0-49-generic
> linux-cloud-tools-3.19.0-49-generic
> You may also want to install one of the following packages to keep up to
> date:
> linux-tools-generic-lts-
> linux-cloud-tools-generic-lts-
> -
> No 'perf' command found so no 'perf' tests will be run
> -
> WARNING: perf not found for kernel 3.19.0-49
> You may need to install the following packages for this specific kernel:
> linux-tools-3.19.0-49-generic
> linux-cloud-tools-3.19.0-49-generic
> You may also want to install one of the following packages to keep up to
> date:
> linux-tools-generic-lts-
> linux-cloud-tools-generic-lts-
> -
> The 'perf' command wasn't found so tests using it
> to sample the 'cycles' hardware event will not be run.
> -
> /bin/nc
> /usr/local/bin/curl
> Note: Google Test filter =
>
[jira] [Commented] (MESOS-4646) PortMappingIsolatorTests get kernel stuck.
[
https://issues.apache.org/jira/browse/MESOS-4646?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15142766#comment-15142766
]
Till Toenshoff commented on MESOS-4646:
---
I now tried a 4.3 kernel. The results are just a bit better in that the kernel
does not get stuck but the tests still fail utterly while getting stuck
themselves.
{noformat}
[ RUN ] PortMappingIsolatorTest.ROOT_NC_ContainerToContainerTCP
I0211 05:56:11.255408 90890 port_mapping_tests.cpp:224] Using eth0 as the
public interface
I0211 05:56:11.255954 90890 port_mapping_tests.cpp:232] Using lo as the
loopback interface
I0211 05:56:13.144747 90890 port_mapping.cpp:1255] Using eth0 as the public
interface
I0211 05:56:13.145141 90890 port_mapping.cpp:1280] Using lo as the loopback
interface
I0211 05:56:13.146286 90890 port_mapping.cpp:1567]
/proc/sys/net/ipv4/neigh/default/gc_thresh3 = '1024'
I0211 05:56:13.146486 90890 port_mapping.cpp:1567]
/proc/sys/net/ipv4/neigh/default/gc_thresh1 = '128'
I0211 05:56:13.146747 90890 port_mapping.cpp:1567] /proc/sys/net/ipv4/tcp_wmem
= '4096 16384 4194304'
I0211 05:56:13.147191 90890 port_mapping.cpp:1567]
/proc/sys/net/ipv4/tcp_synack_retries = '5'
I0211 05:56:13.147518 90890 port_mapping.cpp:1567] /proc/sys/net/core/somaxconn
= '128'
I0211 05:56:13.147707 90890 port_mapping.cpp:1567] /proc/sys/net/core/rmem_max
= '212992'
I0211 05:56:13.147971 90890 port_mapping.cpp:1567] /proc/sys/net/ipv4/tcp_rmem
= '4096 87380 6291456'
I0211 05:56:13.148393 90890 port_mapping.cpp:1567] /proc/sys/net/core/wmem_max
= '212992'
I0211 05:56:13.148653 90890 port_mapping.cpp:1567]
/proc/sys/net/ipv4/tcp_keepalive_time = '7200'
I0211 05:56:13.148808 90890 port_mapping.cpp:1567]
/proc/sys/net/ipv4/neigh/default/gc_thresh2 = '512'
I0211 05:56:13.148962 90890 port_mapping.cpp:1567]
/proc/sys/net/core/netdev_max_backlog = '1000'
I0211 05:56:13.150074 90890 port_mapping.cpp:1567]
/proc/sys/net/ipv4/tcp_keepalive_intvl = '75'
I0211 05:56:13.150271 90890 port_mapping.cpp:1567]
/proc/sys/net/ipv4/tcp_keepalive_probes = '9'
I0211 05:56:13.150394 90890 port_mapping.cpp:1567]
/proc/sys/net/ipv4/tcp_max_syn_backlog = '512'
I0211 05:56:13.150619 90890 port_mapping.cpp:1567]
/proc/sys/net/ipv4/tcp_retries2 = '15'
I0211 05:56:17.074481 90890 linux_launcher.cpp:101] Using
/sys/fs/cgroup/freezer as the freezer hierarchy for the Linux launcher
I0211 05:56:17.078749 90909 port_mapping.cpp:2162] Using non-ephemeral ports
{[31000,31500)} and ephemeral ports [30016,30032) for container container1 of
executor ''
I0211 05:56:17.334048 90890 linux_launcher.cpp:363] Cloning child process with
flags = CLONE_NEWNET | CLONE_NEWNS
../../src/tests/containerizer/port_mapping_tests.cpp:507: Failure
Failed to wait 15secs for isolator.get()->isolate(containerId1, pid.get())
I0211 05:56:34.901305 90907 port_mapping.cpp:2226] Bind mounted
'/proc/90956/ns/net' to '/var/run/netns/90956' for container container1
[ FAILED ] PortMappingIsolatorTest.ROOT_NC_ContainerToContainerTCP (29652 ms)
[ RUN ] PortMappingIsolatorTest.ROOT_NC_ContainerToContainerUDP
I0211 05:56:40.905812 90890 port_mapping_tests.cpp:224] Using eth0 as the
public interface
I0211 05:56:40.906904 90890 port_mapping_tests.cpp:232] Using lo as the
loopback interface
I0211 05:56:40.938251 90890 port_mapping.cpp:1255] Using eth0 as the public
interface
I0211 05:56:40.938639 90890 port_mapping.cpp:1280] Using lo as the loopback
interface
I0211 05:56:41.037220 90890 port_mapping.cpp:1567]
/proc/sys/net/ipv4/neigh/default/gc_thresh3 = '1024'
I0211 05:56:41.037513 90890 port_mapping.cpp:1567]
/proc/sys/net/ipv4/neigh/default/gc_thresh1 = '128'
I0211 05:56:41.037768 90890 port_mapping.cpp:1567] /proc/sys/net/ipv4/tcp_wmem
= '4096 16384 4194304'
I0211 05:56:41.038230 90890 port_mapping.cpp:1567]
/proc/sys/net/ipv4/tcp_synack_retries = '5'
I0211 05:56:41.038434 90890 port_mapping.cpp:1567] /proc/sys/net/core/somaxconn
= '128'
I0211 05:56:41.038596 90890 port_mapping.cpp:1567] /proc/sys/net/core/rmem_max
= '212992'
I0211 05:56:41.051391 90890 port_mapping.cpp:1567] /proc/sys/net/ipv4/tcp_rmem
= '4096 87380 6291456'
I0211 05:56:41.051430 90890 port_mapping.cpp:1567] /proc/sys/net/core/wmem_max
= '212992'
I0211 05:56:41.051456 90890 port_mapping.cpp:1567]
/proc/sys/net/ipv4/tcp_keepalive_time = '7200'
I0211 05:56:41.051482 90890 port_mapping.cpp:1567]
/proc/sys/net/ipv4/neigh/default/gc_thresh2 = '512'
I0211 05:56:41.051507 90890 port_mapping.cpp:1567]
/proc/sys/net/core/netdev_max_backlog = '1000'
I0211 05:56:41.051534 90890 port_mapping.cpp:1567]
/proc/sys/net/ipv4/tcp_keepalive_intvl = '75'
I0211 05:56:41.051558 90890 port_mapping.cpp:1567]
/proc/sys/net/ipv4/tcp_keepalive_probes = '9'
I0211 05:56:41.051583 90890 port_mapping.cpp:1567]
/proc/sys/net/ipv4/tcp_max_syn_backlog = '512'
I0211 05:56:41.051606 90890 port_mapping.cpp:1567]
/proc/sys/net/ipv4/tcp_retries2 = '15'
[jira] [Commented] (MESOS-4646) PortMappingIsolatorTests get kernel stuck.
[
https://issues.apache.org/jira/browse/MESOS-4646?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15142782#comment-15142782
]
Till Toenshoff commented on MESOS-4646:
---
Ow, after having left the machine in that state for a few minutes, at some
point the kernel got stuck as well, even with 4.3.
> PortMappingIsolatorTests get kernel stuck.
> --
>
> Key: MESOS-4646
> URL: https://issues.apache.org/jira/browse/MESOS-4646
> Project: Mesos
> Issue Type: Bug
> Environment: Linux Kernel 3.19.9-49-generic,
> libnl-3.2.27
>Reporter: Till Toenshoff
>Assignee: Cong Wang
>
> {noformat}
> $ sudo ./bin/mesos-tests.sh --gtest_filter="*PortMappingIsolatorTest*"
> Source directory: /home/till/scratchpad/mesos
> Build directory: /home/till/scratchpad/mesos/build
> -
> We cannot run any cgroups tests that require mounting
> hierarchies because you have the following hierarchies mounted:
> /sys/fs/cgroup/blkio, /sys/fs/cgroup/cpu, /sys/fs/cgroup/cpuacct,
> /sys/fs/cgroup/cpuset, /sys/fs/cgroup/devices, /sys/fs/cgroup/freezer,
> /sys/fs/cgroup/hugetlb, /sys/fs/cgroup/memory, /sys/fs/cgroup/net_cls,
> /sys/fs/cgroup/net_prio, /sys/fs/cgroup/perf_event, /sys/fs/cgroup/systemd
> We'll disable the CgroupsNoHierarchyTest test fixture for now.
> -
> WARNING: perf not found for kernel 3.19.0-49
> You may need to install the following packages for this specific kernel:
> linux-tools-3.19.0-49-generic
> linux-cloud-tools-3.19.0-49-generic
> You may also want to install one of the following packages to keep up to
> date:
> linux-tools-generic-lts-
> linux-cloud-tools-generic-lts-
> -
> No 'perf' command found so no 'perf' tests will be run
> -
> WARNING: perf not found for kernel 3.19.0-49
> You may need to install the following packages for this specific kernel:
> linux-tools-3.19.0-49-generic
> linux-cloud-tools-3.19.0-49-generic
> You may also want to install one of the following packages to keep up to
> date:
> linux-tools-generic-lts-
> linux-cloud-tools-generic-lts-
> -
> The 'perf' command wasn't found so tests using it
> to sample the 'cycles' hardware event will not be run.
> -
> /bin/nc
> /usr/local/bin/curl
> Note: Google Test filter =
>
[jira] [Commented] (MESOS-4646) PortMappingIsolatorTests get kernel stuck.
[
https://issues.apache.org/jira/browse/MESOS-4646?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15142231#comment-15142231
]
Cong Wang commented on MESOS-4646:
--
This might be the bug I have already fixed:
{noformat}
commit 6bd00b850635abb0044e06101761533c8beba79c
Author: WANG Cong
Date: Thu Oct 1 11:37:42 2015 -0700
act_mirred: fix a race condition on mirred_list
{noformat}
Could you try to setup kdump to capture the kernel stack trace? Or try a new
kernel, 4.3 or above.
> PortMappingIsolatorTests get kernel stuck.
> --
>
> Key: MESOS-4646
> URL: https://issues.apache.org/jira/browse/MESOS-4646
> Project: Mesos
> Issue Type: Bug
> Environment: Linux Kernel 3.19.9-49-generic,
> libnl-3.2.27
>Reporter: Till Toenshoff
>
> {noformat}
> $ sudo ./bin/mesos-tests.sh --gtest_filter="*PortMappingIsolatorTest*"
> Source directory: /home/till/scratchpad/mesos
> Build directory: /home/till/scratchpad/mesos/build
> -
> We cannot run any cgroups tests that require mounting
> hierarchies because you have the following hierarchies mounted:
> /sys/fs/cgroup/blkio, /sys/fs/cgroup/cpu, /sys/fs/cgroup/cpuacct,
> /sys/fs/cgroup/cpuset, /sys/fs/cgroup/devices, /sys/fs/cgroup/freezer,
> /sys/fs/cgroup/hugetlb, /sys/fs/cgroup/memory, /sys/fs/cgroup/net_cls,
> /sys/fs/cgroup/net_prio, /sys/fs/cgroup/perf_event, /sys/fs/cgroup/systemd
> We'll disable the CgroupsNoHierarchyTest test fixture for now.
> -
> WARNING: perf not found for kernel 3.19.0-49
> You may need to install the following packages for this specific kernel:
> linux-tools-3.19.0-49-generic
> linux-cloud-tools-3.19.0-49-generic
> You may also want to install one of the following packages to keep up to
> date:
> linux-tools-generic-lts-
> linux-cloud-tools-generic-lts-
> -
> No 'perf' command found so no 'perf' tests will be run
> -
> WARNING: perf not found for kernel 3.19.0-49
> You may need to install the following packages for this specific kernel:
> linux-tools-3.19.0-49-generic
> linux-cloud-tools-3.19.0-49-generic
> You may also want to install one of the following packages to keep up to
> date:
> linux-tools-generic-lts-
> linux-cloud-tools-generic-lts-
> -
> The 'perf' command wasn't found so tests using it
> to sample the 'cycles' hardware event will not be run.
> -
> /bin/nc
> /usr/local/bin/curl
> Note: Google Test filter =
>
