Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux (Ubuntu Xenial)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1833028
Title:
fanotify06 from ubuntu_ltp_syscalls failed
Status in ubuntu-kernel-tests:
In Progress
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Xenial:
Confirmed
Status in linux source package in Disco:
Fix Released
Bug description:
== SRU Justification ==
fanotify06 test from ubuntu_ltp_syscalls reported that test #1 for
overlayfs has received more than one expected event:
<<<test_start>>>
tag=fanotify06 stime=1560747299
cmdline="fanotify06"
contacts=""
analysis=exit
<<<test_output>>>
incrementing stop
tst_device.c:231: INFO: Using test device LTP_DEV='/dev/loop2'
tst_mkfs.c:90: INFO: Formatting /dev/loop2 with ext2 opts='' extra opts=''
mke2fs 1.44.6 (5-Mar-2019)
tst_test.c:1112: INFO: Timeout per run is 0h 05m 00s
fanotify06.c:169: INFO: Test #0: Fanotify merge mount mark
fanotify06.c:147: PASS: group 0 got event: mask 2 pid=1136 fd=15
....
fanotify06.c:230: PASS: group 8 got no event
fanotify06.c:169: INFO: Test #1: Fanotify merge overlayfs mount mark
fanotify06.c:208: FAIL: group 0 got more than one event (48 > 24)
fanotify06.c:208: FAIL: group 1 got more than one event (48 > 24)
fanotify06.c:208: FAIL: group 2 got more than one event (48 > 24)
fanotify06.c:220: FAIL: group 3 got event
fanotify06.c:220: FAIL: group 4 got event
fanotify06.c:220: FAIL: group 5 got event
fanotify06.c:220: FAIL: group 6 got event
fanotify06.c:220: FAIL: group 7 got event
fanotify06.c:220: FAIL: group 8 got event
Summary:
passed 9
failed 9
skipped 0
warnings 0
This duplicated event was generated with operations on files with
"fake" path.
== Fix ==
* d9899030 (ovl: do not generate duplicate fsnotify events for "fake" path)
This patch can be cherry-picked into Disco.
Older kernels are not affected by this issue (without commit d1d04ef8)
== Test ==
Test kernel could be found here:
https://people.canonical.com/~phlin/kernel/lp-1833028-fanotify06-ovl/
Verified on a KVM node, the fanotify06 test will pass with this patched
disco kernel:
fanotify06.c:169: INFO: Test #1: Fanotify merge overlayfs mount mark
fanotify06.c:147: PASS: group 0 got event: mask 2 pid=5997 fd=30
fanotify06.c:147: PASS: group 1 got event: mask 2 pid=5997 fd=30
fanotify06.c:147: PASS: group 2 got event: mask 2 pid=5997 fd=30
fanotify06.c:230: PASS: group 3 got no event
fanotify06.c:230: PASS: group 4 got no event
fanotify06.c:230: PASS: group 5 got no event
fanotify06.c:230: PASS: group 6 got no event
fanotify06.c:230: PASS: group 7 got no event
fanotify06.c:230: PASS: group 8 got no event
== Regression Potential ==
Low, fix limited to the overlayfs and just corrects the flag behaviour
with "fake" path.
ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: linux-image-5.0.0-16-generic 5.0.0-16.17
ProcVersionSignature: User Name 5.0.0-16.17-generic 5.0.8
Uname: Linux 5.0.0-16-generic x86_64
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Jun 17 04:37 seq
crw-rw---- 1 root audio 116, 33 Jun 17 04:37 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
ApportVersion: 2.20.10-0ubuntu27
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:
Date: Mon Jun 17 04:40:18 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-5.0.0-16-generic
root=UUID=2a4b0342-a2dd-4feb-b3e2-9644ca1c4a60 ro
RelatedPackageVersions:
linux-restricted-modules-5.0.0-16-generic N/A
linux-backports-modules-5.0.0-16-generic N/A
linux-firmware 1.178.1
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
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