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Message #95637
[Bug 1401817] Re: memory leak with unknown reason after upgrade to utopic
top after some hours of idle:
top - 22:37:02 up 1 day, 13:29, 1 user, load average: 0.00, 0.01, 0.05
Tasks: 268 total, 3 running, 265 sleeping, 0 stopped, 0 zombie
%Cpu(s): 0.6 us, 0.3 sy, 0.0 ni, 98.7 id, 0.4 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem: 49452964 total, 45896468 used, 3556496 free, 19260 buffers
KiB Swap: 50320380 total, 15316760 used, 35003620 free. 43644124 cached Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
16739 root 1 -19 76904 18980 4304 S 0.1 0.0 0:06.64 bs_worker
16745 root 1 -19 76904 18980 4304 S 0.0 0.0 0:06.91 bs_worker
16746 root 1 -19 76904 18980 4304 S 0.0 0.0 0:06.80 bs_worker
16736 root 1 -19 76832 18976 4304 S 0.1 0.0 0:06.90 bs_worker
16731 root 1 -19 76904 18960 4284 S 0.0 0.0 0:06.90 bs_worker
16740 root 1 -19 76884 18952 4292 S 0.1 0.0 0:06.98 bs_worker
16737 root 1 -19 76832 18936 4264 S 0.0 0.0 0:06.83 bs_worker
16741 root 1 -19 76904 18932 4256 S 0.0 0.0 0:06.42 bs_worker
16743 root 1 -19 76904 18932 4256 S 0.1 0.0 0:06.67 bs_worker
16744 root 1 -19 76904 18892 4212 S 0.0 0.0 0:06.87 bs_worker
16742 root 1 -19 76836 18888 4216 S 0.0 0.0 0:06.79 bs_worker
16725 root 1 -19 76884 18872 4216 S 0.0 0.0 0:06.77 bs_worker
16735 root 1 -19 76832 18872 4200 S 0.0 0.0 0:06.98 bs_worker
16726 root 1 -19 76836 18844 4168 S 0.0 0.0 0:07.01 bs_worker
16738 root 1 -19 76904 18840 4164 S 0.0 0.0 0:06.81 bs_worker
16728 root 1 -19 76884 18828 4168 S 0.0 0.0 0:06.91 bs_worker
16732 root 1 -19 76884 18824 4160 S 0.0 0.0 0:06.86 bs_worker
16734 root 1 -19 76904 18808 4128 S 0.0 0.0 0:06.92 bs_worker
16730 root 1 -19 76912 18800 4128 S 0.0 0.0 0:06.77 bs_worker
16733 root 1 -19 76864 18792 4128 S 0.0 0.0 0:06.96 bs_worker
16727 root 1 -19 76836 18784 4168 S 0.1 0.0 0:06.56 bs_worker
16729 root 1 -19 76904 18780 4128 S 0.0 0.0 0:06.66 bs_worker
805 root 20 0 52780 13564 3540 S 0.0 0.0 0:05.05 munin-node
3351 root 20 0 99532 6456 5480 S 0.1 0.0 0:00.03 sshd
16724 root 20 0 34896 5704 1644 S 0.0 0.0 1:58.17 screen
3385 root 20 0 26640 5072 3188 S 0.0 0.0 0:00.03 bash
1496 root 20 0 123748 3976 3376 S 0.0 0.0 0:06.23 thermald
1243 root 20 0 10272 3928 1620 S 0.0 0.0 0:00.34 dhclient
1532 root 20 0 59580 3672 2984 S 0.0 0.0 0:00.01 sshd
1679 ntp 20 0 31488 3336 2728 S 0.0 0.0 0:06.35 ntpd
628 syslog 20 0 255864 3164 1916 S 0.0 0.0 0:00.59 rsyslogd
1 root 20 0 29048 3160 1936 S 0.0 0.0 0:04.24 init
3399 root 20 0 29260 3052 2404 R 0.0 0.0 0:00.01 top
3038 root 20 0 36764 3028 2712 S 0.0 0.0 0:00.03 systemd-logind
698 message+ 20 0 43992 2644 2156 S 0.0 0.0 0:00.12 dbus-daemon
405 root 20 0 23704 2588 2340 S 0.0 0.0 0:00.09 cgmanager
438 root 20 0 34772 2584 2088 S 0.0 0.0 0:00.64 systemd-udevd
1554 root 20 0 26032 2380 2112 S 0.0 0.0 0:00.20 cron
1604 root 20 0 19500 1892 1612 S 0.0 0.0 0:12.49 irqbalance
1495 root 20 0 20000 1844 1684 S 0.0 0.0 0:00.00 getty
1492 root 20 0 20000 1824 1660 S 0.0 0.0 0:00.00 getty
1503 root 20 0 20000 1824 1672 S 0.0 0.0 0:00.00 getty
1809 root 20 0 20000 1808 1656 S 0.0 0.0 0:00.00 getty
1500 root 20 0 20000 1784 1624 S 0.0 0.0 0:00.00 getty
1501 root 20 0 20000 1764 1600 S 0.0 0.0 0:00.00 getty
431 root 20 0 24092 1412 1144 S 0.0 0.0 0:00.22 upstart-udev-br
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1401817
Title:
memory leak with unknown reason after upgrade to utopic
Status in linux package in Ubuntu:
Confirmed
Bug description:
I'm not sure if this is the right component/package. We are not able
to identify a package/program which could be responsible for this bug,
so we assume it is the kernel or at least a kernel configuration.
Since the upgrade from trusty to utopic at October 27., our three
servers for package building are massively swapping. This leads to by
a factor of four slower build times. There were no configuration
changes at all.
Munin graphs of one of the affected servers are attached.
The system has 48GB memory, and we have configured several ramdisks:
root@cx1000-02:~# mount | grep -E "tmpfs|ramfs"
none on /sys/fs/cgroup type tmpfs (rw,uid=0,gid=0,mode=0755,size=1024)
udev on /dev type devtmpfs (rw,mode=0755)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
none on /run/lock type tmpfs (rw,nodev,noexec,nosuid,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
none on /run/user type tmpfs (rw,nodev,noexec,nosuid,size=104857600,mode=0755)
tmpfs on /var/tmp/obs type tmpfs (rw,size=36G)
tmpfs on /run/obs type tmpfs (rw,relatime,size=1G)
ramfs on /var/obscache type ramfs (rw)
tmpfs on /run/obs type tmpfs (rw,relatime,size=1048576k)
The build service uses several chroot environments to build packages
for several distributions (http://openbuildservice.org/).
You don't see any process which allocates so much memory with 'top'.
Even after stopping the build service and unmounting /var/tmp/obs you
are not able to deactivate the swap via swapoff -a:
root@cx1000-02:~# swapoff -a
swapoff: /dev/sda5: swapoff failed: Cannot allocate memory
We also tested the latest kernel (3.16.0-28) and an old trusty kernel
(3.13.0-40) without success. Also patching perl to exclude the perl
bug https://rt.perl.org/Public/Bug/Display.html?id=123198 as root
cause doesn't help.
We don't have any idea what's the cause for this problem...
We can deploy debug packages or anything else on the system, so please
hesitate to ask for any information or help.
ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: linux-image-3.16.0-26-generic 3.16.0-26.35
ProcVersionSignature: Ubuntu 3.16.0-26.35-generic 3.16.7-ckt1
Uname: Linux 3.16.0-26-generic x86_64
AlsaDevices: Error: command ['ls', '-l', '/dev/snd/'] failed with exit code 2: ls: cannot access /dev/snd/: No such file or directory
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.14.7-0ubuntu8
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
Date: Fri Dec 12 09:54:36 2014
HibernationDevice: RESUME=UUID=531cb8f2-e194-45a7-a13c-3167aacf89bf
InstallationDate: Installed on 2011-09-20 (1178 days ago)
InstallationMedia: Ubuntu-Server 11.04 "Natty Narwhal" - Release amd64 (20110426)
IwConfig:
eth0 no wireless extensions.
eth1 no wireless extensions.
lo no wireless extensions.
MachineType: FUJITSU PRIMERGY CX122 S1
PciMultimedia:
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-26-generic root=UUID=6e5b9bee-ccdf-4e6f-b09d-759312aeb3e0 ro quiet
RelatedPackageVersions:
linux-restricted-modules-3.16.0-26-generic N/A
linux-backports-modules-3.16.0-26-generic N/A
linux-firmware 1.138
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: Upgraded to utopic on 2014-10-27 (45 days ago)
dmi.bios.date: 05/24/2011
dmi.bios.vendor: FUJITSU // Phoenix Technologies Ltd.
dmi.bios.version: 6.00 Rev. 1.10.2899.A1
dmi.board.asset.tag: -
dmi.board.name: D2899
dmi.board.vendor: FUJITSU
dmi.board.version: S26361-D2899-A11 WGS02 GS01
dmi.chassis.asset.tag: YLAM001377
dmi.chassis.type: 23
dmi.chassis.vendor: FUJITSU
dmi.chassis.version: CX122S1R
dmi.modalias: dmi:bvnFUJITSU//PhoenixTechnologiesLtd.:bvr6.00Rev.1.10.2899.A1:bd05/24/2011:svnFUJITSU:pnPRIMERGYCX122S1:pvrGS01:rvnFUJITSU:rnD2899:rvrS26361-D2899-A11WGS02GS01:cvnFUJITSU:ct23:cvrCX122S1R:
dmi.product.name: PRIMERGY CX122 S1
dmi.product.version: GS01
dmi.sys.vendor: FUJITSU
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References
