** Description changed:
On bionic kernel with btrfs mounted, kernfs_node_cache grows constantly.
About 7MB/hour of unreclaimable memory growth was observed on my x86_64
system with btrfs root partition, kernel 4.15.0-48-generic #51-Ubuntu
SMP Wed Apr 3 08:28:49 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux.
* disco is not affected. (kernel 5.0.0-13-generic)
* bionic without btrfs is not affected. (on ext4 root partition)
- Possible related commit regarding memory leak found here
-
https://github.com/torvalds/linux/commit/55237a5f2431a72435e3ed39e4306e973c0446b7
+ Possible related commit regarding memory leak found here
+
https://github.com/torvalds/linux/commit/55237a5f2431a72435e3ed39e4306e973c0446b7
has already been merged...
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-48-generic 4.15.0-48.51
ProcVersionSignature: Ubuntu 4.15.0-48.51-generic 4.15.18
Uname: Linux 4.15.0-48-generic x86_64
AlsaDevices:
- total 0
- crw-rw 1 root audio 116, 1 May 9 21:39 seq
- crw-rw 1 root audio 116, 33 May 9 21:39 timer
+ total 0
+ crw-rw 1 root audio 116, 1 May 9 21:39 seq
+ crw-rw 1 root audio 116, 33 May 9 21:39 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:
Date: Fri May 10 01:15:58 2019
HibernationDevice: RESUME=/dev/mapper/ctl-swap
InstallationDate: Installed on 2017-03-19 (781 days ago)
InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64
(20160719)
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
Lsusb:
- Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd
- Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
+ Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd
+ Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
PciMultimedia:
-
+
ProcEnviron:
- TERM=screen-256color
- PATH=(custom, no user)
- XDG_RUNTIME_DIR=
- LANG=en_US.UTF-8
- SHELL=/bin/bash
+ TERM=screen-256color
+ PATH=(custom, no user)
+ XDG_RUNTIME_DIR=
+ LANG=en_US.UTF-8
+ SHELL=/bin/bash
ProcFB: 0 cirrusdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.15.0-48-generic
root=/dev/mapper/ctl-root ro rootflags=subvol=@
RelatedPackageVersions:
- linux-restricted-modules-4.15.0-48-generic N/A
- linux-backports-modules-4.15.0-48-generic N/A
- linux-firmware 1.173.5
+ linux-restricted-modules-4.15.0-48-generic N/A
+ linux-backports-modules-4.15.0-48-generic N/A
+ linux-firmware 1.173.5
RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
SourcePackage: linux
UpgradeStatus: Upgraded to bionic on 2018-05-11 (362 days ago)
dmi.bios.date: 04/01/2014
dmi.bios.vendor: SeaBIOS
dmi.bios.version: rel-1.11.2-0-gf9626ccb91-prebuilt.qemu-project.org
dmi.chassis.type: 1
dmi.chassis.vendor: QEMU
dmi.chassis.version: pc-i440fx-3.0
dmi.modalias:
dmi:bvnSeaBIOS:bvrrel-1.11.2-0-gf9626ccb91-prebuilt.qemu-project.org:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-3.0:cvnQEMU:ct1:cvrpc-i440fx-3.0:
dmi.product.name: Standard PC (i440FX + PIIX, 1996)
dmi.product.version: pc-i440fx-3.0
dmi.sys.vendor: QEMU
--
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1828438
Title:
btrfs memory leak on bionic
Status in linux package in Ubuntu:
Confirmed
Bug description:
On bionic kernel with btrfs mounted, kernfs_node_cache grows
constantly.
About 7MB/hour of unreclaimable memory growth was observed on my
x86_64 system with btrfs root partition, kernel 4.15.0-48-generic
#51-Ubuntu SMP Wed Apr 3 08:28:49 UTC 2019 x86_64 x86_64 x86_64
GNU/Linux.
* disco is not affected. (kernel 5.0.0-13-generic)
* bionic without btrfs is not affected. (on ext4 root partition)
Possible related commit regarding memory leak found here
https://github.com/torvalds/linux/commit/55237a5f2431a72435e3ed39e4306e973c0446b7
has already been merged...
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-48-generic 4.15.0-48.51
ProcVersionSignature: Ubuntu 4.15.0-48.51-generic 4.15.18
Uname: Linux 4.15.0-48-generic x86_64
AlsaDevices:
total 0
crw-rw 1 root audio 116, 1 May 9 21:39 seq
crw-rw 1 root audio 116, 33 May 9 21:39 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'
AudioDevices
