** Tags added: sru-20200106
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https://bugs.launchpad.net/bugs/1836694
Title:
memcg_test_3 from controllers in LTP failed on Moonshot ARM64 with
Bionic
Status in ubuntu-kernel-tests:
New
Status in linux package in Ubuntu:
Confirmed
Status in linux source package in Bionic:
New
Bug description:
This failure could be found in the LTP test suite on a Moonshot ARM64
node with B-4.15, but sometimes it will pass if you try to run it
manually. (Sometimes not.)
<<<test_start>>>
tag=memcg_test_3 stime=1563249678
cmdline="memcg_test_3"
contacts=""
analysis=exit
<<<test_output>>>
incrementing stop
tst_test.c:1100: INFO: Timeout per run is 0h 05m 00s
Test timeouted, sending SIGKILL!
tst_test.c:1140: INFO: If you are running on slow machine, try exporting
LTP_TIMEOUT_MUL > 1
tst_test.c:1141: BROK: Test killed! (timeout?)
Summary:
passed 0
failed 0
skipped 0
warnings 0
tst_tmpdir.c:330: WARN: tst_rmdir: rmobj(/tmp/ltp-nJ05WiJDR1/06EzUc) failed:
unlink(/tmp/ltp-nJ05WiJDR1/06EzUc/memcg/cgroup.clone_children) failed; errno=1:
EPERM
<<<execution_status>>>
When it fails, the attempt to remove files will fail, and most of the
cgroup_fj_* test will fail:
* cgroup_fj_function_memory
* cgroup_fj_stress_memory_10_3_each
* cgroup_fj_stress_memory_10_3_none
* cgroup_fj_stress_memory_10_3_one
* cgroup_fj_stress_memory_1_200_each
* cgroup_fj_stress_memory_1_200_none
* cgroup_fj_stress_memory_1_200_one
* cgroup_fj_stress_memory_200_1_each
* cgroup_fj_stress_memory_200_1_none
* cgroup_fj_stress_memory_200_1_one
* cgroup_fj_stress_memory_2_2_each
* cgroup_fj_stress_memory_2_2_none
* cgroup_fj_stress_memory_2_2_one
* cgroup_fj_stress_memory_2_9_each
* cgroup_fj_stress_memory_2_9_none
* cgroup_fj_stress_memory_2_9_one
* cgroup_fj_stress_memory_3_3_each
* cgroup_fj_stress_memory_3_3_none
* cgroup_fj_stress_memory_3_3_one
* cgroup_fj_stress_memory_4_4_each
* cgroup_fj_stress_memory_4_4_none
* cgroup_fj_stress_memory_4_4_one
Steps to run this:
git clone --depth=1 https://github.com/linux-test-project/ltp.git
cd ltp; make autotools; ./configure; make; sudo make install
echo "memcg_test_3 memcg_test_3" > /tmp/jobs
sudo /opt/ltp/runltp -f /tmp/jobs
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-54-generic 4.15.0-54.58
ProcVersionSignature: User Name 4.15.0-54.58-generic 4.15.18
Uname: Linux 4.15.0-54-generic aarch64
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Jul 16 03:46 seq
crw-rw---- 1 root audio 116, 33 Jul 16 03:46 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
ApportVersion: 2.20.9-0ubuntu7.6
Architecture: arm64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord':
'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
Date: Tue Jul 16 04:16:14 2019
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
Lsusb: Error: command ['lsusb'] failed with exit code 1:
PciMultimedia:
ProcFB:
ProcKernelCmdLine: console=ttyS0,9600n8r ro
RelatedPackageVersions:
linux-restricted-modules-4.15.0-54-generic N/A
linux-backports-modules-4.15.0-54-generic N/A
linux-firmware 1.173.8
RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
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