memcg_max_usage_in_bytes from controllers test suite in LTP failed

[Po-Hsu Lin]

 startup='Wed May 22 05:58:50 2019'
 memcg_max_usage_in_bytes_test 1 TINFO: Starting test 1
 sh: echo: I/O error
 memcg_max_usage_in_bytes_test 1 TINFO: set /dev/memcg/memory.use_hierarchy to 0 failed
 memcg_max_usage_in_bytes_test 1 TINFO: Running memcg_process --mmap-anon -s 4194304
 memcg_max_usage_in_bytes_test 1 TINFO: Warming up pid: 30821
 memcg_max_usage_in_bytes_test 1 TINFO: Process is still here after warm up: 30821
 memcg_max_usage_in_bytes_test 1 TFAIL: memory.max_usage_in_bytes is 4325376, 4194304 expected
 memcg_max_usage_in_bytes_test 2 TINFO: Starting test 2
 sh: echo: I/O error
 memcg_max_usage_in_bytes_test 2 TINFO: set /dev/memcg/memory.use_hierarchy to 0 failed
 memcg_max_usage_in_bytes_test 2 TCONF: mem+swap is not enabled
 memcg_max_usage_in_bytes_test 2 TINFO: Starting test 3
 sh: echo: I/O error
 memcg_max_usage_in_bytes_test 2 TINFO: set /dev/memcg/memory.use_hierarchy to 0 failed
 memcg_max_usage_in_bytes_test 2 TINFO: Running memcg_process --mmap-anon -s 4194304
 memcg_max_usage_in_bytes_test 2 TINFO: Warming up pid: 30855
 memcg_max_usage_in_bytes_test 2 TINFO: Process is still here after warm up: 30855
 memcg_max_usage_in_bytes_test 2 TFAIL: memory.max_usage_in_bytes is 4329472, 4194304 expected
 memcg_max_usage_in_bytes_test 3 TFAIL: memory.max_usage_in_bytes is 8192, 0 expected
 memcg_max_usage_in_bytes_test 4 TINFO: Starting test 4
 sh: echo: I/O error
 memcg_max_usage_in_bytes_test 4 TINFO: set /dev/memcg/memory.use_hierarchy to 0 failed
 memcg_max_usage_in_bytes_test 4 TCONF: mem+swap is not enabled
 tag=memcg_max_usage_in_bytes stime=1558504730 dur=3 exit=exited stat=33 core=no cu=8 cs=7

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-50-generic 4.15.0-50.54
ProcVersionSignature: User Name 4.15.0-50.54-generic 4.15.18
Uname: Linux 4.15.0-50-generic x86_64
AlsaDevices:
 total 0
 crw-rw---- 1 root audio 116, 1 May 22 02:57 seq
 crw-rw---- 1 root audio 116, 33 May 22 02:57 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
ApportVersion: 2.20.9-0ubuntu7.6
Architecture: amd64
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:
CurrentDmesg:
 [14538.862950] cfg80211: Loading compiled-in X.509 certificates for regulatory database
 [14538.874559] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
Date: Wed May 22 07:06:31 2019
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
PciMultimedia:

ProcFB: 0 cirrusdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-50-generic root=UUID=576666e8-9e7f-40ee-934e-f1dce18323e5 ro
RelatedPackageVersions:
 linux-restricted-modules-4.15.0-50-generic N/A
 linux-backports-modules-4.15.0-50-generic N/A
 linux-firmware 1.173.6
RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/01/2014
dmi.bios.vendor: SeaBIOS
dmi.bios.version: Ubuntu-1.8.2-1ubuntu1
dmi.chassis.type: 1
dmi.chassis.vendor: QEMU
dmi.chassis.version: pc-i440fx-xenial
dmi.modalias: dmi:bvnSeaBIOS:bvrUbuntu-1.8.2-1ubuntu1:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-xenial:cvnQEMU:ct1:cvrpc-i440fx-xenial:
dmi.product.name: Standard PC (i440FX + PIIX, 1996)
dmi.product.version: pc-i440fx-xenial
dmi.sys.vendor: QEMU

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1829979

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Sean Feole (sfeole)]

affecting azure disco 5.0.0-1021.22

[Po-Hsu Lin (cypressyew)]

affecting B-4.15 KVM

[Krzysztof Kozlowski (krzk)]

It's a duplicate of lp:1897560. From comments there:
- Observed in F/KVM, cycle sru-20210510.
- Observed in B/KVM, cycle sru-20210510.
- Observed in H/KVM, cycle sru-20210510.
- Issue observed in F/KVM, cycle sru-20210412.
- Also seen in bionic linux-fips 4.15.0-1057.65 for sru-20210315
- Also seen in bionic linux-gcp-fips 4.15.0-2007.8 for sru-20210315 (sru-20210222 as well)
- found on bionic/ibm-gt 4.15.0-1084.93
- Found on Groovy lowlatency 5.8.0-31.33

[Krzysztof Kozlowski (krzk)]

Sent to upstream (LTP): https://github.com/linux-test-project/ltp/pull/829

[Guilherme G. Piccoli (gpiccoli)]

Issue observed in G/KVM, cycle sru-20210531 .

Thanks krzk for the fix! Hope in next cycle we don't see it anymore in our tests.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Kleber Sacilotto de Souza (kleber-souza)]

Also found with focal/linux-hwe-5.11 5.11.0-20.21~20.04.1.

[Krzysztof Kozlowski (krzk)]

Accepted upstream and in local LTP mirror.