Comment 0 for bug 1765653

This directory-concurrent.sh.ext4 test will fail with 4.13 and 4.15 kernel:

Steps:
  1. git clone --depth=1 git://kernel.ubuntu.com/ubuntu/autotest-client-tests -b master-next
  2. git clone --depth=1 git://kernel.ubuntu.com/ubuntu/autotest
  3. rm -fr autotest/client/tests
  4. ln -sf ~/autotest-client-tests autotest/client/tests
  5. AUTOTEST_PATH=/home/ubuntu/autotest sudo -E autotest/client/autotest-local --verbose autotest/client/tests/ubuntu_ecryptfs/control

Output:
 Running 'tests/run_one.sh -K -t directory-concurrent.sh -b 1000000 -D /mnt/image -l /mnt/lower -u /mnt/upper -f ext4'
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing mkdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 Timed out after 30 seconds doing rmdir() - possible eCryptfs hang
 directory-concurrent FAIL

 Test Summary:
 0 passed
 1 failed

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-17-generic 4.15.0-17.18
ProcVersionSignature: User Name 4.15.0-17.18-generic 4.15.17
Uname: Linux 4.15.0-17-generic aarch64
AlsaDevices:
 total 0
 crw-rw---- 1 root audio 116, 1 Apr 20 09:29 seq
 crw-rw---- 1 root audio 116, 33 Apr 20 09:29 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
ApportVersion: 2.20.9-0ubuntu5
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:
CurrentDmesg:

Date: Fri Apr 20 09:40:05 2018
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
MachineType: Cavium ThunderX CRB
PciMultimedia:

ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=C.UTF-8
 SHELL=/bin/bash
ProcFB:
 0 EFI VGA
 1 astdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-17-generic root=UUID=ddcb8b36-6267-4392-a1f9-74d9203b742e ro acpi=force iommu.passthrough=1
RelatedPackageVersions:
 linux-restricted-modules-4.15.0-17-generic N/A
 linux-backports-modules-4.15.0-17-generic N/A
 linux-firmware 1.173
RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/12/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 5.11
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: To be filled by O.E.M.
dmi.board.vendor: To be filled by O.E.M.
dmi.board.version: To be filled by O.E.M.
dmi.chassis.asset.tag: To be filled by O.E.M.
dmi.chassis.type: 0
dmi.chassis.vendor: Cavium
dmi.chassis.version: To be filled by O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr5.11:bd12/12/2012:svnCavium:pnThunderXCRB:pvrTobefilledbyO.E.M.:rvnTobefilledbyO.E.M.:rnTobefilledbyO.E.M.:rvrTobefilledbyO.E.M.:cvnCavium:ct0:cvrTobefilledbyO.E.M.:
dmi.product.family: Default string
dmi.product.name: ThunderX CRB
dmi.product.version: To be filled by O.E.M.
dmi.sys.vendor: Cavium