Activity log for bug #1655842

Date Who What changed Old value New value Message
2017-01-12 06:48:29 Mike Williams bug added bug
2017-01-12 07:00:16 Brad Figg linux (Ubuntu): status New Confirmed
2017-01-12 14:27:03 Joseph Salisbury linux (Ubuntu): importance Undecided High
2017-01-12 14:27:12 Joseph Salisbury nominated for series Ubuntu Xenial
2017-01-12 14:27:12 Joseph Salisbury bug task added linux (Ubuntu Xenial)
2017-01-12 14:27:19 Joseph Salisbury linux (Ubuntu Xenial): status New Triaged
2017-01-12 14:27:21 Joseph Salisbury linux (Ubuntu Xenial): importance Undecided High
2017-01-12 14:27:24 Joseph Salisbury linux (Ubuntu): status Confirmed Triaged
2017-01-12 14:37:11 Dan Streetman bug added subscriber Dan Streetman
2017-01-13 11:49:36 Fabian Grünbichler bug added subscriber Fabian Grünbichler
2017-01-17 13:28:09 Chris Angenent bug added subscriber Chris Angenent
2017-01-17 22:53:36 Sebastian Unger bug added subscriber Sebastian Unger
2017-01-18 15:53:18 Jeff Billimek bug added subscriber Jeff Billimek
2017-01-18 17:34:30 Gaudenz Steinlin bug added subscriber Gaudenz Steinlin
2017-01-18 21:22:31 Stéphane Graber bug added subscriber Stéphane Graber
2017-01-18 22:28:06 Erik Hess bug added subscriber Erik Hess
2017-01-19 09:57:04 wurlyfan bug added subscriber wurlyfan
2017-01-19 16:04:27 Nick Swanson bug added subscriber Nick Swanson
2017-01-19 16:53:39 Allen Wild bug added subscriber Allen Wild
2017-01-20 00:58:52 Tomasz Ratajczak bug added subscriber Tomasz Ratajczak
2017-01-20 03:56:24 Peter200lx bug added subscriber Peter200lx
2017-01-20 11:59:09 Thadeu Lima de Souza Cascardo linux (Ubuntu): assignee Thadeu Lima de Souza Cascardo (cascardo)
2017-01-20 11:59:14 Thadeu Lima de Souza Cascardo linux (Ubuntu Xenial): assignee Thadeu Lima de Souza Cascardo (cascardo)
2017-01-21 10:35:50 Danny B bug added subscriber Danny B
2017-01-21 16:22:29 Ben French linux (Ubuntu): status Triaged In Progress
2017-01-21 20:55:25 Viktor Szathmáry bug added subscriber Viktor Szathmáry
2017-01-23 04:41:45 David F. bug added subscriber David F.
2017-01-23 19:04:09 Matt Nordhoff bug added subscriber Matt Nordhoff
2017-01-24 05:07:55 Michael Loeffler bug added subscriber Michael Loeffler
2017-01-24 10:58:57 Andre Keller bug added subscriber Andre Keller
2017-01-25 02:23:47 freelock bug added subscriber freelock
2017-01-25 07:01:07 Dominique Poulain bug added subscriber Dominique Poulain
2017-01-25 15:26:18 Eric Desrochers bug added subscriber Eric Desrochers
2017-01-26 20:19:16 Ellen H. bug added subscriber Ellen H.
2017-01-26 20:42:43 Michael Barrow bug added subscriber Michael Barrow
2017-01-27 00:22:24 Eric Cuevas bug added subscriber Eric Cuevas
2017-01-27 13:54:32 Eric Desrochers linux (Ubuntu Xenial): status Triaged In Progress
2017-01-27 19:40:50 Eric Desrochers tags amd64 apport-bug ec2-images xenial amd64 apport-bug ec2-images sts xenial
2017-01-29 01:26:34 Ivan Kozik bug added subscriber Ivan Kozik
2017-01-29 09:44:55 Ben Parafina bug added subscriber Ben Parafina
2017-01-29 14:41:51 Nobuto Murata bug added subscriber Nobuto Murata
2017-01-30 01:47:15 Joel Stanley bug added subscriber Joel Stanley
2017-01-30 02:20:56 Yoshi Kadokawa bug added subscriber Yoshi Kadokawa
2017-01-30 12:18:44 Thomas Kriechbaumer bug added subscriber Thomas Kriechbaumer
2017-01-30 17:09:03 J Delaney bug added subscriber J Delaney
2017-01-30 23:43:45 Nate Eldredge bug added subscriber Nate Eldredge
2017-01-31 09:10:52 Ilya Almametov bug added subscriber Ilya Almametov
2017-01-31 13:29:01 Tim Gardner linux (Ubuntu Xenial): status In Progress Fix Committed
2017-01-31 13:29:07 Tim Gardner linux (Ubuntu): status In Progress Fix Released
2017-01-31 22:14:02 Sandor Zeestraten bug added subscriber Sandor Zeestraten
2017-02-01 08:35:17 Markus Weippert bug added subscriber Markus Weippert
2017-02-02 10:58:41 Luk van den Borne bug added subscriber Luk van den Borne
2017-02-04 01:36:19 Charles Wright bug added subscriber Charles Wright
2017-02-04 02:11:59 Nathan Caza bug added subscriber Nathan Caza
2017-02-05 12:26:36 Pavel Piatruk bug added subscriber Pavel Piatruk
2017-02-05 21:34:59 Sridhar Chandramouli bug added subscriber Sridhar Chandramouli
2017-02-06 18:09:12 Marco Voelz bug added subscriber Marco Voelz
2017-02-07 00:46:27 Marek Dopiera bug added subscriber Marek Dopiera
2017-02-07 01:33:59 David Glasser bug added subscriber David Glasser
2017-02-09 11:59:22 Anton Piatek bug added subscriber Anton Piatek
2017-02-09 14:04:38 Jon Schewe bug added subscriber Jon Schewe
2017-02-09 14:31:51 Dorian Fraser-Moore bug added subscriber Dorian Fraser-Moore
2017-02-09 22:02:33 Thadeu Lima de Souza Cascardo tags amd64 apport-bug ec2-images sts xenial amd64 apport-bug ec2-images sts verification-needed-xenial xenial
2017-02-10 09:06:12 Tomaz Beltram bug added subscriber Tomaz Beltram
2017-02-10 14:07:54 Otto Wayne bug added subscriber Otto Wayne
2017-02-11 03:42:12 Johan van Dijk bug added subscriber Johan van Dijk
2017-02-11 16:41:32 Oliver O. tags amd64 apport-bug ec2-images sts verification-needed-xenial xenial amd64 apport-bug ec2-images sts verification-done-xenial xenial
2017-02-13 03:56:42 Anton bug added subscriber Anton
2017-02-13 07:42:20 Marc Fournier bug added subscriber Marc Fournier
2017-02-14 10:20:21 Craig Francis bug added subscriber Craig Francis
2017-02-15 00:55:21 Haw Loeung bug added subscriber Haw Loeung
2017-02-15 13:56:56 Dave bug added subscriber Dave
2017-02-15 14:48:33 Jonathan bug added subscriber Jonathan
2017-02-16 12:08:06 Ian Gordon bug added subscriber Ian Gordon
2017-02-16 12:11:50 YAMAMOTO Hirotaka bug added subscriber YAMAMOTO Hirotaka
2017-02-17 15:49:37 Craig Francis description I recently replaced some Xenial servers, and started experiencing "Out of memory" problems with the default kernel. We bake Amazon AMIs based on an official Ubuntu-provided image (ami-e6b58e85, in ap-southeast-2, from https://cloud-images.ubuntu.com/locator/ec2/). Previous versions of our AMI included "4.4.0-57-generic", but the latest version picked up "4.4.0-59-generic" as part of a "dist-upgrade". Instances booted using the new AMI have been using more memory, and experiencing OOM issues - sometimes during boot, and sometimes a while afterwards. An example from the system log is: [ 130.113411] cloud-init[1560]: Cloud-init v. 0.7.8 running 'modules:final' at Wed, 11 Jan 2017 22:07:53 +0000. Up 29.28 seconds. [ 130.124219] cloud-init[1560]: Cloud-init v. 0.7.8 finished at Wed, 11 Jan 2017 22:09:35 +0000. Datasource DataSourceEc2. Up 130.09 seconds [29871.137128] Out of memory: Kill process 2920 (ruby) score 107 or sacrifice child [29871.140816] Killed process 2920 (ruby) total-vm:675048kB, anon-rss:51184kB, file-rss:2164kB [29871.449209] Out of memory: Kill process 3257 (splunkd) score 97 or sacrifice child [29871.453282] Killed process 3258 (splunkd) total-vm:66272kB, anon-rss:6676kB, file-rss:0kB [29871.677910] Out of memory: Kill process 2647 (fluentd) score 51 or sacrifice child [29871.681872] Killed process 2647 (fluentd) total-vm:117944kB, anon-rss:23956kB, file-rss:1356kB I have a hunch that this may be related to the fix for https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1647400, introduced in linux (4.4.0-58.79). ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-59-generic 4.4.0-59.80 ProcVersionSignature: User Name 4.4.0-59.80-generic 4.4.35 Uname: Linux 4.4.0-59-generic x86_64 AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Jan 12 06:29 seq crw-rw---- 1 root audio 116, 33 Jan 12 06:29 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Thu Jan 12 06:38:45 2017 Ec2AMI: ami-0f93966c Ec2AMIManifest: (unknown) Ec2AvailabilityZone: ap-southeast-2a Ec2InstanceType: t2.nano Ec2Kernel: unavailable Ec2Ramdisk: unavailable IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Error: command ['lsusb'] failed with exit code 1: MachineType: Xen HVM domU PciMultimedia: ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 cirrusdrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-59-generic root=UUID=fb0fef08-f3c5-40bf-9776-f7ba00fe72be ro console=tty1 console=ttyS0 RelatedPackageVersions: linux-restricted-modules-4.4.0-59-generic N/A linux-backports-modules-4.4.0-59-generic N/A linux-firmware 1.157.6 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/09/2016 dmi.bios.vendor: Xen dmi.bios.version: 4.2.amazon dmi.chassis.type: 1 dmi.chassis.vendor: Xen dmi.modalias: dmi:bvnXen:bvr4.2.amazon:bd12/09/2016:svnXen:pnHVMdomU:pvr4.2.amazon:cvnXen:ct1:cvr: dmi.product.name: HVM domU dmi.product.version: 4.2.amazon dmi.sys.vendor: Xen I recently replaced some Xenial servers, and started experiencing "Out of memory" problems with the default kernel. We bake Amazon AMIs based on an official Ubuntu-provided image (ami-e6b58e85, in ap-southeast-2, from https://cloud-images.ubuntu.com/locator/ec2/). Previous versions of our AMI included "4.4.0-57-generic", but the latest version picked up "4.4.0-59-generic" as part of a "dist-upgrade". Instances booted using the new AMI have been using more memory, and experiencing OOM issues - sometimes during boot, and sometimes a while afterwards. An example from the system log is: [ 130.113411] cloud-init[1560]: Cloud-init v. 0.7.8 running 'modules:final' at Wed, 11 Jan 2017 22:07:53 +0000. Up 29.28 seconds. [ 130.124219] cloud-init[1560]: Cloud-init v. 0.7.8 finished at Wed, 11 Jan 2017 22:09:35 +0000. Datasource DataSourceEc2. Up 130.09 seconds [29871.137128] Out of memory: Kill process 2920 (ruby) score 107 or sacrifice child [29871.140816] Killed process 2920 (ruby) total-vm:675048kB, anon-rss:51184kB, file-rss:2164kB [29871.449209] Out of memory: Kill process 3257 (splunkd) score 97 or sacrifice child [29871.453282] Killed process 3258 (splunkd) total-vm:66272kB, anon-rss:6676kB, file-rss:0kB [29871.677910] Out of memory: Kill process 2647 (fluentd) score 51 or sacrifice child [29871.681872] Killed process 2647 (fluentd) total-vm:117944kB, anon-rss:23956kB, file-rss:1356kB I have a hunch that this may be related to the fix for https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1647400, introduced in linux (4.4.0-58.79). ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-59-generic 4.4.0-59.80 ProcVersionSignature: User Name 4.4.0-59.80-generic 4.4.35 Uname: Linux 4.4.0-59-generic x86_64 AlsaDevices:  total 0  crw-rw---- 1 root audio 116, 1 Jan 12 06:29 seq  crw-rw---- 1 root audio 116, 33 Jan 12 06:29 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Thu Jan 12 06:38:45 2017 Ec2AMI: ami-0f93966c Ec2AMIManifest: (unknown) Ec2AvailabilityZone: ap-southeast-2a Ec2InstanceType: t2.nano Ec2Kernel: unavailable Ec2Ramdisk: unavailable IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Error: command ['lsusb'] failed with exit code 1: MachineType: Xen HVM domU PciMultimedia: ProcEnviron:  TERM=xterm-256color  PATH=(custom, no user)  XDG_RUNTIME_DIR=<set>  LANG=en_US.UTF-8  SHELL=/bin/bash ProcFB: 0 cirrusdrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-59-generic root=UUID=fb0fef08-f3c5-40bf-9776-f7ba00fe72be ro console=tty1 console=ttyS0 RelatedPackageVersions:  linux-restricted-modules-4.4.0-59-generic N/A  linux-backports-modules-4.4.0-59-generic N/A  linux-firmware 1.157.6 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/09/2016 dmi.bios.vendor: Xen dmi.bios.version: 4.2.amazon dmi.chassis.type: 1 dmi.chassis.vendor: Xen dmi.modalias: dmi:bvnXen:bvr4.2.amazon:bd12/09/2016:svnXen:pnHVMdomU:pvr4.2.amazon:cvnXen:ct1:cvr: dmi.product.name: HVM domU dmi.product.version: 4.2.amazon dmi.sys.vendor: Xen
2017-02-20 07:42:07 Launchpad Janitor linux (Ubuntu Xenial): status Fix Committed Fix Released
2017-02-20 13:55:08 Iain Buclaw attachment added meminfo-buffers.png https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1655842/+attachment/4822727/+files/meminfo-buffers.png
2017-02-27 16:05:25 Anton bug added subscriber Anton
2017-03-02 12:38:03 Julian Kassat attachment added kern.log https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1655842/+attachment/4829766/+files/kern.log
2017-03-20 15:25:53 Pete Cheslock attachment added kern.log https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1655842/+attachment/4841016/+files/kern.log
2017-03-27 10:18:42 Luca Lesinigo bug added subscriber Luca Lesinigo
2017-04-09 17:59:51 Mohammad Anwar Shah bug added subscriber Mohammad Anwar Shah
2017-04-09 18:30:08 Nate Eldredge removed subscriber Nate Eldredge
2017-04-10 14:59:04 David F. removed subscriber David F.
2017-04-11 06:16:33 Sandor Zeestraten removed subscriber Sandor Zeestraten
2017-04-11 06:38:16 Mohammad Anwar Shah attachment added dmesg log in KDE with 4.4.0-21 kernel https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1655842/+attachment/4859987/+files/shitty-dmesg.txt
2017-05-21 12:59:18 kimo bug added subscriber kimo
2017-05-22 09:40:20 Sebastian Unger bug task added linux-raspi2 (Ubuntu)
2017-05-25 14:16:26 kimo linux-raspi2 (Ubuntu): status New Confirmed
2017-05-25 14:18:07 kimo linux-raspi2 (Ubuntu Xenial): status New Confirmed
2017-05-25 14:46:22 Craig Francis removed subscriber Craig Francis
2017-05-26 13:31:40 Andre Keller removed subscriber Andre Keller
2017-06-16 22:38:53 Nick Hatch attachment added kthreadd triggered order=2 allocation failure https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1655842/+attachment/4897378/+files/kern.log
2017-06-16 22:41:09 Nick Hatch bug added subscriber Nick Hatch
2017-06-27 12:50:41 Chris bug added subscriber Chris
2017-06-30 09:21:28 Thadeu Lima de Souza Cascardo bug added subscriber Paolo Pisati
2017-06-30 09:48:52 Paolo Pisati linux-raspi2 (Ubuntu): assignee Paolo Pisati (p-pisati)
2017-08-16 13:26:14 Jake Billo attachment added kern.log from affected system https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1655842/+attachment/4933628/+files/kern_20170816.log
2017-08-16 13:26:29 Jake Billo bug task added linux-aws (Ubuntu)
2017-08-16 15:29:20 Jake Billo attachment added full kern.log contents https://bugs.launchpad.net/ubuntu/+source/linux-aws/+bug/1655842/+attachment/4933724/+files/full_kern_20170816.log
2017-08-17 02:29:01 sirswa attachment added Kern log attached. https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1655842/+attachment/4934013/+files/kern-log-kernel4.4.0-89.txt
2017-08-17 02:29:53 sirswa attachment added dmesg-kernel4.4.0-89.txt https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1655842/+attachment/4934014/+files/dmesg-kernel4.4.0-89.txt
2017-08-17 13:18:54 Michael Hart bug added subscriber Michael Hart
2017-09-05 12:36:32 Willem attachment added dmesg.txt https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1655842/+attachment/4944720/+files/dmesg.txt
2017-09-05 12:37:15 Willem attachment added kern.log https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1655842/+attachment/4944721/+files/kern.log
2017-09-05 13:10:40 Thomas Kriechbaumer removed subscriber Thomas Kriechbaumer
2017-09-05 13:26:33 Jakob Reiter bug added subscriber Jakob Reiter
2017-09-10 20:46:34 Willem bug added subscriber Willem
2017-09-11 15:58:30 Paolo Pisati linux-raspi2 (Ubuntu): status Confirmed Fix Committed
2017-09-11 15:58:35 Paolo Pisati linux-raspi2 (Ubuntu Xenial): status Confirmed Fix Committed
2017-09-11 16:49:04 Launchpad Janitor linux-aws (Ubuntu): status New Confirmed
2017-09-11 16:49:04 Launchpad Janitor linux-aws (Ubuntu Xenial): status New Confirmed
2017-09-11 18:50:27 Mohammad Anwar Shah removed subscriber Mohammad Anwar Shah
2017-09-11 18:50:33 Mohammad Anwar Shah bug added subscriber Mohammad Anwar Shah
2017-09-11 18:50:36 Mohammad Anwar Shah removed subscriber Mohammad Anwar Shah
2017-09-12 02:05:03 Danny B removed subscriber Danny B
2017-09-13 13:21:25 Ellen H. removed subscriber Ellen H.
2017-10-19 19:57:17 Ryan Harper bug added subscriber Ryan Harper
2017-11-01 14:17:11 Vladimir Nicolici attachment added OOM log https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1655842/+attachment/5001874/+files/oom.log
2017-11-15 11:28:38 Hervé BRY bug added subscriber Hervé BRY
2017-11-27 16:52:27 Thadeu Lima de Souza Cascardo description I recently replaced some Xenial servers, and started experiencing "Out of memory" problems with the default kernel. We bake Amazon AMIs based on an official Ubuntu-provided image (ami-e6b58e85, in ap-southeast-2, from https://cloud-images.ubuntu.com/locator/ec2/). Previous versions of our AMI included "4.4.0-57-generic", but the latest version picked up "4.4.0-59-generic" as part of a "dist-upgrade". Instances booted using the new AMI have been using more memory, and experiencing OOM issues - sometimes during boot, and sometimes a while afterwards. An example from the system log is: [ 130.113411] cloud-init[1560]: Cloud-init v. 0.7.8 running 'modules:final' at Wed, 11 Jan 2017 22:07:53 +0000. Up 29.28 seconds. [ 130.124219] cloud-init[1560]: Cloud-init v. 0.7.8 finished at Wed, 11 Jan 2017 22:09:35 +0000. Datasource DataSourceEc2. Up 130.09 seconds [29871.137128] Out of memory: Kill process 2920 (ruby) score 107 or sacrifice child [29871.140816] Killed process 2920 (ruby) total-vm:675048kB, anon-rss:51184kB, file-rss:2164kB [29871.449209] Out of memory: Kill process 3257 (splunkd) score 97 or sacrifice child [29871.453282] Killed process 3258 (splunkd) total-vm:66272kB, anon-rss:6676kB, file-rss:0kB [29871.677910] Out of memory: Kill process 2647 (fluentd) score 51 or sacrifice child [29871.681872] Killed process 2647 (fluentd) total-vm:117944kB, anon-rss:23956kB, file-rss:1356kB I have a hunch that this may be related to the fix for https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1647400, introduced in linux (4.4.0-58.79). ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-59-generic 4.4.0-59.80 ProcVersionSignature: User Name 4.4.0-59.80-generic 4.4.35 Uname: Linux 4.4.0-59-generic x86_64 AlsaDevices:  total 0  crw-rw---- 1 root audio 116, 1 Jan 12 06:29 seq  crw-rw---- 1 root audio 116, 33 Jan 12 06:29 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Thu Jan 12 06:38:45 2017 Ec2AMI: ami-0f93966c Ec2AMIManifest: (unknown) Ec2AvailabilityZone: ap-southeast-2a Ec2InstanceType: t2.nano Ec2Kernel: unavailable Ec2Ramdisk: unavailable IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Error: command ['lsusb'] failed with exit code 1: MachineType: Xen HVM domU PciMultimedia: ProcEnviron:  TERM=xterm-256color  PATH=(custom, no user)  XDG_RUNTIME_DIR=<set>  LANG=en_US.UTF-8  SHELL=/bin/bash ProcFB: 0 cirrusdrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-59-generic root=UUID=fb0fef08-f3c5-40bf-9776-f7ba00fe72be ro console=tty1 console=ttyS0 RelatedPackageVersions:  linux-restricted-modules-4.4.0-59-generic N/A  linux-backports-modules-4.4.0-59-generic N/A  linux-firmware 1.157.6 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/09/2016 dmi.bios.vendor: Xen dmi.bios.version: 4.2.amazon dmi.chassis.type: 1 dmi.chassis.vendor: Xen dmi.modalias: dmi:bvnXen:bvr4.2.amazon:bd12/09/2016:svnXen:pnHVMdomU:pvr4.2.amazon:cvnXen:ct1:cvr: dmi.product.name: HVM domU dmi.product.version: 4.2.amazon dmi.sys.vendor: Xen After a fix for LP#1647400, a bug that caused freezes under some workloads, some users noticed regular OOMs. Those regular OOMs were reported under this bug, and fixed after some releases. Some of the affected kernels are documented below. In order to check your particular kernel, read its changelog and lookup for 1655842 and 1647400. If it has the fix for 1647400, but not the fix for 1655842, then it's affected. It's still possible that you notice regressions compared to kernels that didn't have the fixes for any of the bugs. However, reverting all fixes would cause the freeze bug to come back. So, it's not a possible solution moving forward. If you see any regressions, in the form of OOMs, mainly, please report a new bug. Different workloads may require different solutions, and it's possible that further fixes are needed, be them upstream or not. The best way to get such fixes applied is reporting that under a new bug, one that can be verified, so being able to reproduce the bug makes it possible to verify the fixes really fix the identified bug. Kernels affected: linux 4.4.0-58, 4.4.0-59, 4.4.0-60, 4.4.0-61, 4.4.0-62. linux-raspi2 4.4.0-1039 to 4.4.0-1042 and 4.4.0-1044 to 4.4.0-1071 Particular kernels NOT affected by THIS bug: linux-aws To reiterate, if you find an OOM with an affected kernel, please upgrade. If you find an OOM with a non-affected kernel, please report a new bug. We want to investigate it and fix it. =================== I recently replaced some Xenial servers, and started experiencing "Out of memory" problems with the default kernel. We bake Amazon AMIs based on an official Ubuntu-provided image (ami-e6b58e85, in ap-southeast-2, from https://cloud-images.ubuntu.com/locator/ec2/). Previous versions of our AMI included "4.4.0-57-generic", but the latest version picked up "4.4.0-59-generic" as part of a "dist-upgrade". Instances booted using the new AMI have been using more memory, and experiencing OOM issues - sometimes during boot, and sometimes a while afterwards. An example from the system log is: [ 130.113411] cloud-init[1560]: Cloud-init v. 0.7.8 running 'modules:final' at Wed, 11 Jan 2017 22:07:53 +0000. Up 29.28 seconds. [ 130.124219] cloud-init[1560]: Cloud-init v. 0.7.8 finished at Wed, 11 Jan 2017 22:09:35 +0000. Datasource DataSourceEc2. Up 130.09 seconds [29871.137128] Out of memory: Kill process 2920 (ruby) score 107 or sacrifice child [29871.140816] Killed process 2920 (ruby) total-vm:675048kB, anon-rss:51184kB, file-rss:2164kB [29871.449209] Out of memory: Kill process 3257 (splunkd) score 97 or sacrifice child [29871.453282] Killed process 3258 (splunkd) total-vm:66272kB, anon-rss:6676kB, file-rss:0kB [29871.677910] Out of memory: Kill process 2647 (fluentd) score 51 or sacrifice child [29871.681872] Killed process 2647 (fluentd) total-vm:117944kB, anon-rss:23956kB, file-rss:1356kB I have a hunch that this may be related to the fix for https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1647400, introduced in linux (4.4.0-58.79). ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-59-generic 4.4.0-59.80 ProcVersionSignature: User Name 4.4.0-59.80-generic 4.4.35 Uname: Linux 4.4.0-59-generic x86_64 AlsaDevices:  total 0  crw-rw---- 1 root audio 116, 1 Jan 12 06:29 seq  crw-rw---- 1 root audio 116, 33 Jan 12 06:29 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Thu Jan 12 06:38:45 2017 Ec2AMI: ami-0f93966c Ec2AMIManifest: (unknown) Ec2AvailabilityZone: ap-southeast-2a Ec2InstanceType: t2.nano Ec2Kernel: unavailable Ec2Ramdisk: unavailable IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Error: command ['lsusb'] failed with exit code 1: MachineType: Xen HVM domU PciMultimedia: ProcEnviron:  TERM=xterm-256color  PATH=(custom, no user)  XDG_RUNTIME_DIR=<set>  LANG=en_US.UTF-8  SHELL=/bin/bash ProcFB: 0 cirrusdrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-59-generic root=UUID=fb0fef08-f3c5-40bf-9776-f7ba00fe72be ro console=tty1 console=ttyS0 RelatedPackageVersions:  linux-restricted-modules-4.4.0-59-generic N/A  linux-backports-modules-4.4.0-59-generic N/A  linux-firmware 1.157.6 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/09/2016 dmi.bios.vendor: Xen dmi.bios.version: 4.2.amazon dmi.chassis.type: 1 dmi.chassis.vendor: Xen dmi.modalias: dmi:bvnXen:bvr4.2.amazon:bd12/09/2016:svnXen:pnHVMdomU:pvr4.2.amazon:cvnXen:ct1:cvr: dmi.product.name: HVM domU dmi.product.version: 4.2.amazon dmi.sys.vendor: Xen
2018-02-23 23:59:19 woosht bug added subscriber woosht
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