2014-05-09 09:26:54 |
Stéphan Kochen |
bug |
|
|
added bug |
2014-05-09 09:30:17 |
Brad Figg |
linux (Ubuntu): status |
New |
Incomplete |
|
2014-05-09 10:00:49 |
Stéphan Kochen |
tags |
amd64 apport-bug ec2-images trusty |
amd64 apport-bug apport-collected ec2-images trusty |
|
2014-05-09 10:00:51 |
Stéphan Kochen |
description |
Running Ubuntu 14.04 LTS on EC2, we see a lot of the following in the kernel log:
xen_netfront: xennet: skb rides the rocket: 19 slots
Each of these messages corresponds to a dropped TX packet, and eventually causes our application's connections to break and timeout.
The problem appears when network load increases. We have Node.js processes doing pubsub with a Redis server, and these are most visibly affected, showing frequent connection loss. The processes talk to each other using the private addresses EC2 allocates to the machines.
Notably, the default MTU on the network interface seems to have gone up from 1500 on 13.10, to 9000 in 14.04 LTS. Reducing the MTU back to 1500 seems to drastically reduce dropped packets. (Can't say for certain if it completely eliminates the problem.)
The machines we run are started from ami-896c96fe.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-24-generic 3.13.0-24.46
ProcVersionSignature: User Name 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 May 9 09:01 seq
crw-rw---- 1 root audio 116, 33 May 9 09:01 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.14.1-0ubuntu3
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:
CRDA: Error: [Errno 2] No such file or directory: 'iw'
Date: Fri May 9 09:11:18 2014
Ec2AMI: ami-896c96fe
Ec2AMIManifest: (unknown)
Ec2AvailabilityZone: eu-west-1c
Ec2InstanceType: c3.large
Ec2Kernel: aki-52a34525
Ec2Ramdisk: unavailable
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
Lspci:
Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
PciMultimedia:
ProcFB:
ProcKernelCmdLine: root=LABEL=cloudimg-rootfs ro console=hvc0
RelatedPackageVersions:
linux-restricted-modules-3.13.0-24-generic N/A
linux-backports-modules-3.13.0-24-generic N/A
linux-firmware N/A
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install) |
Running Ubuntu 14.04 LTS on EC2, we see a lot of the following in the kernel log:
xen_netfront: xennet: skb rides the rocket: 19 slots
Each of these messages corresponds to a dropped TX packet, and eventually causes our application's connections to break and timeout.
The problem appears when network load increases. We have Node.js processes doing pubsub with a Redis server, and these are most visibly affected, showing frequent connection loss. The processes talk to each other using the private addresses EC2 allocates to the machines.
Notably, the default MTU on the network interface seems to have gone up from 1500 on 13.10, to 9000 in 14.04 LTS. Reducing the MTU back to 1500 seems to drastically reduce dropped packets. (Can't say for certain if it completely eliminates the problem.)
The machines we run are started from ami-896c96fe.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-24-generic 3.13.0-24.46
ProcVersionSignature: User Name 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 May 9 09:01 seq
crw-rw---- 1 root audio 116, 33 May 9 09:01 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.14.1-0ubuntu3
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:
CRDA: Error: [Errno 2] No such file or directory: 'iw'
Date: Fri May 9 09:11:18 2014
Ec2AMI: ami-896c96fe
Ec2AMIManifest: (unknown)
Ec2AvailabilityZone: eu-west-1c
Ec2InstanceType: c3.large
Ec2Kernel: aki-52a34525
Ec2Ramdisk: unavailable
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
Lspci:
Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
PciMultimedia:
ProcFB:
ProcKernelCmdLine: root=LABEL=cloudimg-rootfs ro console=hvc0
RelatedPackageVersions:
linux-restricted-modules-3.13.0-24-generic N/A
linux-backports-modules-3.13.0-24-generic N/A
linux-firmware N/A
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
---
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 May 9 09:54 seq
crw-rw---- 1 root audio 116, 33 May 9 09:54 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CRDA: Error: [Errno 2] No such file or directory
CurrentDmesg: [ 24.724129] init: plymouth-upstart-bridge main process ended, respawning
DistroRelease: Ubuntu 14.04
Ec2AMI: ami-896c96fe
Ec2AMIManifest: (unknown)
Ec2AvailabilityZone: eu-west-1c
Ec2InstanceType: c3.large
Ec2Kernel: aki-52a34525
Ec2Ramdisk: unavailable
IwConfig: Error: [Errno 2] No such file or directory
Lspci:
Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
Package: linux (not installed)
PciMultimedia:
ProcFB:
ProcKernelCmdLine: root=LABEL=cloudimg-rootfs ro console=hvc0
ProcVersionSignature: User Name 3.13.0-24.46-generic 3.13.9
RelatedPackageVersions:
linux-restricted-modules-3.13.0-24-generic N/A
linux-backports-modules-3.13.0-24-generic N/A
linux-firmware N/A
RfKill: Error: [Errno 2] No such file or directory
Tags: trusty ec2-images
Uname: Linux 3.13.0-24-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm audio cdrom dialout dip floppy netdev plugdev sudo video
_MarkForUpload: True |
|
2014-05-09 10:00:52 |
Stéphan Kochen |
attachment added |
|
BootDmesg.txt https://bugs.launchpad.net/bugs/1317811/+attachment/4108532/+files/BootDmesg.txt |
|
2014-05-09 10:00:54 |
Stéphan Kochen |
attachment added |
|
ProcCpuinfo.txt https://bugs.launchpad.net/bugs/1317811/+attachment/4108533/+files/ProcCpuinfo.txt |
|
2014-05-09 10:00:58 |
Stéphan Kochen |
attachment added |
|
ProcEnviron.txt https://bugs.launchpad.net/bugs/1317811/+attachment/4108534/+files/ProcEnviron.txt |
|
2014-05-09 10:00:59 |
Stéphan Kochen |
attachment added |
|
ProcInterrupts.txt https://bugs.launchpad.net/bugs/1317811/+attachment/4108535/+files/ProcInterrupts.txt |
|
2014-05-09 10:01:02 |
Stéphan Kochen |
attachment added |
|
ProcModules.txt https://bugs.launchpad.net/bugs/1317811/+attachment/4108536/+files/ProcModules.txt |
|
2014-05-09 10:01:03 |
Stéphan Kochen |
attachment added |
|
UdevDb.txt https://bugs.launchpad.net/bugs/1317811/+attachment/4108537/+files/UdevDb.txt |
|
2014-05-09 10:01:05 |
Stéphan Kochen |
attachment added |
|
UdevLog.txt https://bugs.launchpad.net/bugs/1317811/+attachment/4108538/+files/UdevLog.txt |
|
2014-05-09 10:01:07 |
Stéphan Kochen |
attachment added |
|
WifiSyslog.txt https://bugs.launchpad.net/bugs/1317811/+attachment/4108539/+files/WifiSyslog.txt |
|
2014-05-09 10:02:33 |
Stéphan Kochen |
linux (Ubuntu): status |
Incomplete |
Confirmed |
|
2014-05-09 18:26:31 |
Joseph Salisbury |
linux (Ubuntu): importance |
Undecided |
Medium |
|
2014-05-13 10:22:04 |
Stefan Bader |
bug |
|
|
added subscriber Stefan Bader |
2014-05-13 16:05:29 |
Stefan Bader |
linux (Ubuntu): status |
Confirmed |
In Progress |
|
2014-05-13 16:05:29 |
Stefan Bader |
linux (Ubuntu): assignee |
|
Stefan Bader (smb) |
|
2014-05-14 16:53:10 |
Stefano Rivera |
bug |
|
|
added subscriber Yola |
2014-07-02 15:53:08 |
Patrick Hemmer |
bug |
|
|
added subscriber Patrick Hemmer |
2014-08-20 14:55:33 |
Jon Schewe |
bug |
|
|
added subscriber Jon Schewe |
2014-09-09 11:39:50 |
Pablo |
bug |
|
|
added subscriber Pablo |
2014-10-02 08:46:47 |
Anders Bruun Olsen |
bug |
|
|
added subscriber Anders Bruun Olsen |
2014-11-13 21:19:21 |
Jared Biel |
bug |
|
|
added subscriber Jared Biel |
2014-11-24 18:50:50 |
Dylan McCall |
bug |
|
|
added subscriber Dylan McCall |
2014-12-01 03:36:33 |
Carl Hörberg |
bug |
|
|
added subscriber Carl Hörberg |
2014-12-01 09:50:06 |
Stefan Bader |
nominated for series |
|
Ubuntu Utopic |
|
2014-12-01 09:50:06 |
Stefan Bader |
bug task added |
|
linux (Ubuntu Utopic) |
|
2014-12-01 09:50:06 |
Stefan Bader |
nominated for series |
|
Ubuntu Trusty |
|
2014-12-01 09:50:06 |
Stefan Bader |
bug task added |
|
linux (Ubuntu Trusty) |
|
2014-12-01 09:50:22 |
Stefan Bader |
linux (Ubuntu Trusty): importance |
Undecided |
Medium |
|
2014-12-01 09:50:22 |
Stefan Bader |
linux (Ubuntu Trusty): status |
New |
Triaged |
|
2014-12-01 09:50:34 |
Stefan Bader |
linux (Ubuntu Utopic): importance |
Undecided |
Medium |
|
2014-12-01 09:50:34 |
Stefan Bader |
linux (Ubuntu Utopic): status |
New |
Triaged |
|
2014-12-01 09:55:20 |
Stefan Bader |
description |
Running Ubuntu 14.04 LTS on EC2, we see a lot of the following in the kernel log:
xen_netfront: xennet: skb rides the rocket: 19 slots
Each of these messages corresponds to a dropped TX packet, and eventually causes our application's connections to break and timeout.
The problem appears when network load increases. We have Node.js processes doing pubsub with a Redis server, and these are most visibly affected, showing frequent connection loss. The processes talk to each other using the private addresses EC2 allocates to the machines.
Notably, the default MTU on the network interface seems to have gone up from 1500 on 13.10, to 9000 in 14.04 LTS. Reducing the MTU back to 1500 seems to drastically reduce dropped packets. (Can't say for certain if it completely eliminates the problem.)
The machines we run are started from ami-896c96fe.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-24-generic 3.13.0-24.46
ProcVersionSignature: User Name 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 May 9 09:01 seq
crw-rw---- 1 root audio 116, 33 May 9 09:01 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.14.1-0ubuntu3
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:
CRDA: Error: [Errno 2] No such file or directory: 'iw'
Date: Fri May 9 09:11:18 2014
Ec2AMI: ami-896c96fe
Ec2AMIManifest: (unknown)
Ec2AvailabilityZone: eu-west-1c
Ec2InstanceType: c3.large
Ec2Kernel: aki-52a34525
Ec2Ramdisk: unavailable
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
Lspci:
Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
PciMultimedia:
ProcFB:
ProcKernelCmdLine: root=LABEL=cloudimg-rootfs ro console=hvc0
RelatedPackageVersions:
linux-restricted-modules-3.13.0-24-generic N/A
linux-backports-modules-3.13.0-24-generic N/A
linux-firmware N/A
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
---
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 May 9 09:54 seq
crw-rw---- 1 root audio 116, 33 May 9 09:54 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CRDA: Error: [Errno 2] No such file or directory
CurrentDmesg: [ 24.724129] init: plymouth-upstart-bridge main process ended, respawning
DistroRelease: Ubuntu 14.04
Ec2AMI: ami-896c96fe
Ec2AMIManifest: (unknown)
Ec2AvailabilityZone: eu-west-1c
Ec2InstanceType: c3.large
Ec2Kernel: aki-52a34525
Ec2Ramdisk: unavailable
IwConfig: Error: [Errno 2] No such file or directory
Lspci:
Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
Package: linux (not installed)
PciMultimedia:
ProcFB:
ProcKernelCmdLine: root=LABEL=cloudimg-rootfs ro console=hvc0
ProcVersionSignature: User Name 3.13.0-24.46-generic 3.13.9
RelatedPackageVersions:
linux-restricted-modules-3.13.0-24-generic N/A
linux-backports-modules-3.13.0-24-generic N/A
linux-firmware N/A
RfKill: Error: [Errno 2] No such file or directory
Tags: trusty ec2-images
Uname: Linux 3.13.0-24-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm audio cdrom dialout dip floppy netdev plugdev sudo video
_MarkForUpload: True |
Running Ubuntu 14.04 LTS on EC2, we see a lot of the following in the kernel log:
xen_netfront: xennet: skb rides the rocket: 19 slots
Each of these messages corresponds to a dropped TX packet, and eventually causes our application's connections to break and timeout.
The problem appears when network load increases. We have Node.js processes doing pubsub with a Redis server, and these are most visibly affected, showing frequent connection loss. The processes talk to each other using the private addresses EC2 allocates to the machines.
Notably, the default MTU on the network interface seems to have gone up from 1500 on 13.10, to 9000 in 14.04 LTS. Reducing the MTU back to 1500 seems to drastically reduce dropped packets. (Can't say for certain if it completely eliminates the problem.)
The machines we run are started from ami-896c96fe.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-24-generic 3.13.0-24.46
ProcVersionSignature: User Name 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 May 9 09:01 seq
crw-rw---- 1 root audio 116, 33 May 9 09:01 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.14.1-0ubuntu3
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:
CRDA: Error: [Errno 2] No such file or directory: 'iw'
Date: Fri May 9 09:11:18 2014
Ec2AMI: ami-896c96fe
Ec2AMIManifest: (unknown)
Ec2AvailabilityZone: eu-west-1c
Ec2InstanceType: c3.large
Ec2Kernel: aki-52a34525
Ec2Ramdisk: unavailable
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
Lspci:
Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
PciMultimedia:
ProcFB:
ProcKernelCmdLine: root=LABEL=cloudimg-rootfs ro console=hvc0
RelatedPackageVersions:
linux-restricted-modules-3.13.0-24-generic N/A
linux-backports-modules-3.13.0-24-generic N/A
linux-firmware N/A
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
---
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 May 9 09:54 seq
crw-rw---- 1 root audio 116, 33 May 9 09:54 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CRDA: Error: [Errno 2] No such file or directory
CurrentDmesg: [ 24.724129] init: plymouth-upstart-bridge main process ended, respawning
DistroRelease: Ubuntu 14.04
Ec2AMI: ami-896c96fe
Ec2AMIManifest: (unknown)
Ec2AvailabilityZone: eu-west-1c
Ec2InstanceType: c3.large
Ec2Kernel: aki-52a34525
Ec2Ramdisk: unavailable
IwConfig: Error: [Errno 2] No such file or directory
Lspci:
Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
Package: linux (not installed)
PciMultimedia:
ProcFB:
ProcKernelCmdLine: root=LABEL=cloudimg-rootfs ro console=hvc0
ProcVersionSignature: User Name 3.13.0-24.46-generic 3.13.9
RelatedPackageVersions:
linux-restricted-modules-3.13.0-24-generic N/A
linux-backports-modules-3.13.0-24-generic N/A
linux-firmware N/A
RfKill: Error: [Errno 2] No such file or directory
Tags: trusty ec2-images
Uname: Linux 3.13.0-24-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm audio cdrom dialout dip floppy netdev plugdev sudo video
_MarkForUpload: True
break-fix: - 97a6d1bb2b658ac85ed88205ccd1ab809899884d |
|
2014-12-01 09:55:48 |
Stefan Bader |
tags |
amd64 apport-bug apport-collected ec2-images trusty |
amd64 apport-bug apport-collected ec2-images kernel-bug-break-fix trusty |
|
2014-12-04 22:55:08 |
Andy Whitcroft |
linux (Ubuntu Trusty): status |
Triaged |
Confirmed |
|
2014-12-04 22:55:17 |
Andy Whitcroft |
linux (Ubuntu Utopic): status |
Triaged |
Confirmed |
|
2014-12-04 22:55:22 |
Andy Whitcroft |
linux (Ubuntu): status |
In Progress |
Fix Committed |
|
2014-12-08 22:52:19 |
KyleAnderson |
bug |
|
|
added subscriber KyleAnderson |
2014-12-18 07:03:08 |
Zivago Lee |
bug |
|
|
added subscriber Zivago Lee |
2015-01-07 09:16:55 |
Andy Whitcroft |
linux (Ubuntu): status |
Fix Committed |
Fix Released |
|
2015-01-16 02:37:33 |
Diego Rodriguez |
bug |
|
|
added subscriber Diego Rodriguez |
2015-01-16 13:01:41 |
Stefan Bader |
description |
Running Ubuntu 14.04 LTS on EC2, we see a lot of the following in the kernel log:
xen_netfront: xennet: skb rides the rocket: 19 slots
Each of these messages corresponds to a dropped TX packet, and eventually causes our application's connections to break and timeout.
The problem appears when network load increases. We have Node.js processes doing pubsub with a Redis server, and these are most visibly affected, showing frequent connection loss. The processes talk to each other using the private addresses EC2 allocates to the machines.
Notably, the default MTU on the network interface seems to have gone up from 1500 on 13.10, to 9000 in 14.04 LTS. Reducing the MTU back to 1500 seems to drastically reduce dropped packets. (Can't say for certain if it completely eliminates the problem.)
The machines we run are started from ami-896c96fe.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-24-generic 3.13.0-24.46
ProcVersionSignature: User Name 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 May 9 09:01 seq
crw-rw---- 1 root audio 116, 33 May 9 09:01 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.14.1-0ubuntu3
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:
CRDA: Error: [Errno 2] No such file or directory: 'iw'
Date: Fri May 9 09:11:18 2014
Ec2AMI: ami-896c96fe
Ec2AMIManifest: (unknown)
Ec2AvailabilityZone: eu-west-1c
Ec2InstanceType: c3.large
Ec2Kernel: aki-52a34525
Ec2Ramdisk: unavailable
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
Lspci:
Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
PciMultimedia:
ProcFB:
ProcKernelCmdLine: root=LABEL=cloudimg-rootfs ro console=hvc0
RelatedPackageVersions:
linux-restricted-modules-3.13.0-24-generic N/A
linux-backports-modules-3.13.0-24-generic N/A
linux-firmware N/A
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
---
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 May 9 09:54 seq
crw-rw---- 1 root audio 116, 33 May 9 09:54 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CRDA: Error: [Errno 2] No such file or directory
CurrentDmesg: [ 24.724129] init: plymouth-upstart-bridge main process ended, respawning
DistroRelease: Ubuntu 14.04
Ec2AMI: ami-896c96fe
Ec2AMIManifest: (unknown)
Ec2AvailabilityZone: eu-west-1c
Ec2InstanceType: c3.large
Ec2Kernel: aki-52a34525
Ec2Ramdisk: unavailable
IwConfig: Error: [Errno 2] No such file or directory
Lspci:
Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
Package: linux (not installed)
PciMultimedia:
ProcFB:
ProcKernelCmdLine: root=LABEL=cloudimg-rootfs ro console=hvc0
ProcVersionSignature: User Name 3.13.0-24.46-generic 3.13.9
RelatedPackageVersions:
linux-restricted-modules-3.13.0-24-generic N/A
linux-backports-modules-3.13.0-24-generic N/A
linux-firmware N/A
RfKill: Error: [Errno 2] No such file or directory
Tags: trusty ec2-images
Uname: Linux 3.13.0-24-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm audio cdrom dialout dip floppy netdev plugdev sudo video
_MarkForUpload: True
break-fix: - 97a6d1bb2b658ac85ed88205ccd1ab809899884d |
Running Ubuntu 14.04 LTS on EC2, we see a lot of the following in the kernel log:
xen_netfront: xennet: skb rides the rocket: 19 slots
Each of these messages corresponds to a dropped TX packet, and eventually causes our application's connections to break and timeout.
The problem appears when network load increases. We have Node.js processes doing pubsub with a Redis server, and these are most visibly affected, showing frequent connection loss. The processes talk to each other using the private addresses EC2 allocates to the machines.
Notably, the default MTU on the network interface seems to have gone up from 1500 on 13.10, to 9000 in 14.04 LTS. Reducing the MTU back to 1500 seems to drastically reduce dropped packets. (Can't say for certain if it completely eliminates the problem.)
The machines we run are started from ami-896c96fe.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-24-generic 3.13.0-24.46
ProcVersionSignature: User Name 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 May 9 09:01 seq
crw-rw---- 1 root audio 116, 33 May 9 09:01 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.14.1-0ubuntu3
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:
CRDA: Error: [Errno 2] No such file or directory: 'iw'
Date: Fri May 9 09:11:18 2014
Ec2AMI: ami-896c96fe
Ec2AMIManifest: (unknown)
Ec2AvailabilityZone: eu-west-1c
Ec2InstanceType: c3.large
Ec2Kernel: aki-52a34525
Ec2Ramdisk: unavailable
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
Lspci:
Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
PciMultimedia:
ProcFB:
ProcKernelCmdLine: root=LABEL=cloudimg-rootfs ro console=hvc0
RelatedPackageVersions:
linux-restricted-modules-3.13.0-24-generic N/A
linux-backports-modules-3.13.0-24-generic N/A
linux-firmware N/A
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
---
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 May 9 09:54 seq
crw-rw---- 1 root audio 116, 33 May 9 09:54 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CRDA: Error: [Errno 2] No such file or directory
CurrentDmesg: [ 24.724129] init: plymouth-upstart-bridge main process ended, respawning
DistroRelease: Ubuntu 14.04
Ec2AMI: ami-896c96fe
Ec2AMIManifest: (unknown)
Ec2AvailabilityZone: eu-west-1c
Ec2InstanceType: c3.large
Ec2Kernel: aki-52a34525
Ec2Ramdisk: unavailable
IwConfig: Error: [Errno 2] No such file or directory
Lspci:
Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
Package: linux (not installed)
PciMultimedia:
ProcFB:
ProcKernelCmdLine: root=LABEL=cloudimg-rootfs ro console=hvc0
ProcVersionSignature: User Name 3.13.0-24.46-generic 3.13.9
RelatedPackageVersions:
linux-restricted-modules-3.13.0-24-generic N/A
linux-backports-modules-3.13.0-24-generic N/A
linux-firmware N/A
RfKill: Error: [Errno 2] No such file or directory
Tags: trusty ec2-images
Uname: Linux 3.13.0-24-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm audio cdrom dialout dip floppy netdev plugdev sudo video
_MarkForUpload: True
break-fix: - 97a6d1bb2b658ac85ed88205ccd1ab809899884d
break-fix: - 11d3d2a16cc1f05c6ece69a4392e99efb85666a6 |
|
2015-01-27 15:04:57 |
Hector |
bug |
|
|
added subscriber Hector |
2015-01-31 16:24:16 |
Giacomo Tazzari |
bug |
|
|
added subscriber Giacomo |
2015-02-03 10:18:14 |
oLi |
bug |
|
|
added subscriber oLi |
2015-02-04 23:51:14 |
Durzo |
bug |
|
|
added subscriber Durzo |
2015-02-09 10:09:09 |
Andy Whitcroft |
linux (Ubuntu Utopic): status |
Confirmed |
Fix Committed |
|
2015-02-09 12:26:20 |
Heikki Hannikainen |
bug |
|
|
added subscriber Heikki Hannikainen |
2015-02-09 17:01:44 |
David Terei |
bug |
|
|
added subscriber David Terei |
2015-02-09 20:22:38 |
Seth Forshee |
linux (Ubuntu Trusty): status |
Confirmed |
Fix Committed |
|
2015-02-13 17:19:56 |
Brad Figg |
tags |
amd64 apport-bug apport-collected ec2-images kernel-bug-break-fix trusty |
amd64 apport-bug apport-collected ec2-images kernel-bug-break-fix trusty verification-needed-trusty |
|
2015-02-17 22:46:18 |
Patrick Domack |
bug |
|
|
added subscriber Patrick Domack |
2015-02-18 08:37:45 |
Stefan Bader |
tags |
amd64 apport-bug apport-collected ec2-images kernel-bug-break-fix trusty verification-needed-trusty |
amd64 apport-bug apport-collected ec2-images kernel-bug-break-fix trusty verification-done-trusty |
|
2015-02-18 08:38:58 |
Stefan Bader |
tags |
amd64 apport-bug apport-collected ec2-images kernel-bug-break-fix trusty verification-done-trusty |
amd64 apport-bug apport-collected ec2-images kernel-bug-break-fix trusty verification-done-trusty verification-done-utopic |
|
2015-02-18 08:39:24 |
Stefan Bader |
linux (Ubuntu): assignee |
Stefan Bader (smb) |
|
|
2015-02-24 17:49:43 |
Bartosz Cisek |
bug |
|
|
added subscriber Bartosz Cisek |
2015-02-24 19:58:45 |
Launchpad Janitor |
linux (Ubuntu Trusty): status |
Fix Committed |
Fix Released |
|
2015-02-24 19:58:45 |
Launchpad Janitor |
cve linked |
|
2015-0239 |
|
2015-02-24 19:58:46 |
Launchpad Janitor |
linux (Ubuntu Trusty): status |
Fix Committed |
Fix Released |
|
2015-02-26 00:53:07 |
David M. Lee |
bug |
|
|
added subscriber David M. Lee |
2015-03-03 15:16:42 |
Andy Whitcroft |
linux (Ubuntu Utopic): status |
Fix Committed |
Fix Released |
|
2015-03-03 15:16:46 |
Andy Whitcroft |
tags |
amd64 apport-bug apport-collected ec2-images kernel-bug-break-fix trusty verification-done-trusty verification-done-utopic |
amd64 apport-bug apport-collected ec2-images trusty verification-done-trusty verification-done-utopic |
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