kernel-packages team mailing list archive
-
kernel-packages team
-
Mailing list archive
-
Message #154812
[Bug 1531768] [NEW] kernel 4.2/wily on arm64 and multiple CPUs is unusably slow
Public bug reported:
I created an 8 CPU arm64 instance on Canonical's Scalingstack (which I
want to use for armhf autopkgtesting in LXD). I started with wily as
that has lxd available (it's not yet available in trusty nor the PPA for
arm64).
However, pretty much any LXD task that I do (I haven't tried much else)
on this machine takes unbearably long. A simple "lxc profile set default
raw.lxc lxc.seccomp=" or "lxc list" takes several minutes.
I see tons of
[ 1020.971955] rcu_sched kthread starved for 6000 jiffies! g1095 c1094 f0x0
[ 1121.166926] INFO: task fsnotify_mark:69 blocked for more than 120 seconds.
in dmesg (the attached apport info has the complete dmesg).
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: linux-image-4.2.0-22-generic 4.2.0-22.27
ProcVersionSignature: User Name 4.2.0-22.27-generic 4.2.6
Uname: Linux 4.2.0-22-generic aarch64
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Jan 7 09:18 seq
crw-rw---- 1 root audio 116, 33 Jan 7 09:18 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.19.1-0ubuntu5
Architecture: arm64
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: N/A
Date: Thu Jan 7 09:24:01 2016
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
lxcbr0 no wireless extensions.
Lspci:
00:00.0 Host bridge [0600]: Red Hat, Inc. Device [1b36:0008]
Subsystem: Red Hat, Inc Device [1af4:1100]
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
PciMultimedia:
ProcEnviron:
TERM=screen
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-22-generic root=LABEL=cloudimg-rootfs earlyprintk
RelatedPackageVersions:
linux-restricted-modules-4.2.0-22-generic N/A
linux-backports-modules-4.2.0-22-generic N/A
linux-firmware 1.149.3
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug arm64 uec-images wily
** Description changed:
I created an 8 CPU arm64 instance on Canonical's Scalingstack (which I
want to use for armhf autopkgtesting in LXD). I started with wily as
that has lxd available (it's not yet available in trusty nor the PPA for
arm64).
- However, pretty much anything that I do on this machine takes unbearably
- long. A simple "lxc profile set default raw.lxc lxc.seccomp=" or "lxc
- list" takes several minutes.
+ However, pretty much any LXD task that I do (I haven't tried much else)
+ on this machine takes unbearably long. A simple "lxc profile set default
+ raw.lxc lxc.seccomp=" or "lxc list" takes several minutes.
I see tons of
[ 1020.971955] rcu_sched kthread starved for 6000 jiffies! g1095 c1094 f0x0
[ 1121.166926] INFO: task fsnotify_mark:69 blocked for more than 120 seconds.
in dmesg (the attached apport info has the complete dmesg).
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: linux-image-4.2.0-22-generic 4.2.0-22.27
ProcVersionSignature: User Name 4.2.0-22.27-generic 4.2.6
Uname: Linux 4.2.0-22-generic aarch64
AlsaDevices:
- total 0
- crw-rw---- 1 root audio 116, 1 Jan 7 09:18 seq
- crw-rw---- 1 root audio 116, 33 Jan 7 09:18 timer
+ total 0
+ crw-rw---- 1 root audio 116, 1 Jan 7 09:18 seq
+ crw-rw---- 1 root audio 116, 33 Jan 7 09:18 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.19.1-0ubuntu5
Architecture: arm64
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: N/A
Date: Thu Jan 7 09:24:01 2016
IwConfig:
- eth0 no wireless extensions.
-
- lo no wireless extensions.
-
- lxcbr0 no wireless extensions.
+ eth0 no wireless extensions.
+
+ lo no wireless extensions.
+
+ lxcbr0 no wireless extensions.
Lspci:
- 00:00.0 Host bridge [0600]: Red Hat, Inc. Device [1b36:0008]
- Subsystem: Red Hat, Inc Device [1af4:1100]
- Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
+ 00:00.0 Host bridge [0600]: Red Hat, Inc. Device [1b36:0008]
+ Subsystem: Red Hat, Inc Device [1af4:1100]
+ Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
+ Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
PciMultimedia:
-
+
ProcEnviron:
- TERM=screen
- PATH=(custom, no user)
- XDG_RUNTIME_DIR=<set>
- LANG=en_US.UTF-8
- SHELL=/bin/bash
+ TERM=screen
+ PATH=(custom, no user)
+ XDG_RUNTIME_DIR=<set>
+ LANG=en_US.UTF-8
+ SHELL=/bin/bash
ProcFB:
-
+
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-22-generic root=LABEL=cloudimg-rootfs earlyprintk
RelatedPackageVersions:
- linux-restricted-modules-4.2.0-22-generic N/A
- linux-backports-modules-4.2.0-22-generic N/A
- linux-firmware 1.149.3
+ linux-restricted-modules-4.2.0-22-generic N/A
+ linux-backports-modules-4.2.0-22-generic N/A
+ linux-firmware 1.149.3
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
--
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/1531768
Title:
kernel 4.2/wily on arm64 and multiple CPUs is unusably slow
Status in linux package in Ubuntu:
New
Bug description:
I created an 8 CPU arm64 instance on Canonical's Scalingstack (which I
want to use for armhf autopkgtesting in LXD). I started with wily as
that has lxd available (it's not yet available in trusty nor the PPA
for arm64).
However, pretty much any LXD task that I do (I haven't tried much
else) on this machine takes unbearably long. A simple "lxc profile set
default raw.lxc lxc.seccomp=" or "lxc list" takes several minutes.
I see tons of
[ 1020.971955] rcu_sched kthread starved for 6000 jiffies! g1095 c1094 f0x0
[ 1121.166926] INFO: task fsnotify_mark:69 blocked for more than 120 seconds.
in dmesg (the attached apport info has the complete dmesg).
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: linux-image-4.2.0-22-generic 4.2.0-22.27
ProcVersionSignature: User Name 4.2.0-22.27-generic 4.2.6
Uname: Linux 4.2.0-22-generic aarch64
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Jan 7 09:18 seq
crw-rw---- 1 root audio 116, 33 Jan 7 09:18 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.19.1-0ubuntu5
Architecture: arm64
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: N/A
Date: Thu Jan 7 09:24:01 2016
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
lxcbr0 no wireless extensions.
Lspci:
00:00.0 Host bridge [0600]: Red Hat, Inc. Device [1b36:0008]
Subsystem: Red Hat, Inc Device [1af4:1100]
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
PciMultimedia:
ProcEnviron:
TERM=screen
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-22-generic root=LABEL=cloudimg-rootfs earlyprintk
RelatedPackageVersions:
linux-restricted-modules-4.2.0-22-generic N/A
linux-backports-modules-4.2.0-22-generic N/A
linux-firmware 1.149.3
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1531768/+subscriptions
Follow ups
-
[Bug 1531768] Re: [arm64] lockups some time after booting
From: Colin Ian King, 2016-06-21
-
[Bug 1531768] Re: [arm64] lockups some time after booting
From: Colin Ian King, 2016-06-21
-
[Bug 1531768] Re: [arm64] lockups some time after booting
From: Colin Ian King, 2016-06-21
-
[Bug 1531768] Re: [arm64] lockups some time after booting
From: Colin Ian King, 2016-06-21
-
[Bug 1531768] Re: [arm64] lockups some time after booting
From: Colin Ian King, 2016-06-21
-
[Bug 1531768] Re: [arm64] lockups some time after booting
From: Colin Ian King, 2016-06-21
-
[Bug 1531768] Re: [arm64] lockups some time after booting
From: William Grant, 2016-06-21
-
[Bug 1531768] Re: [arm64] lockups some time after booting
From: Colin Ian King, 2016-06-21
-
[Bug 1531768] Re: [arm64] lockups when idle if tickless (nohz=on) is used
From: Martin Pitt, 2016-06-18
-
[Bug 1531768] Re: [arm64] lockups when idle if tickless (nohz=on) is used
From: Junien Fridrick, 2016-06-17
-
[Bug 1531768] Re: [arm64] lockups when idle if tickless (nohz=on) is used
From: Colin Ian King, 2016-06-17
-
[Bug 1531768] Re: [arm64] lockups when idle if tickless (nohz=on) is used
From: Colin Ian King, 2016-06-17
-
[Bug 1531768] Re: [arm64] lockups when idle if tickless (nohz=on) is used
From: Colin Ian King, 2016-06-17
-
[Bug 1531768] Re: [arm64] lockups when idle if tickless (nohz=on) is used
From: Martin Pitt, 2016-06-17
-
[Bug 1531768] Re: [arm64] lockups when idle if tickless (nohz=on) is used
From: Colin Ian King, 2016-06-16
-
[Bug 1531768] Re: [arm64] lockups when idle if tickless (nohz=on) is used
From: Martin Pitt, 2016-06-16
-
[Bug 1531768] Re: [arm64] lockups when idle if tickless (nohz=on) is used
From: Martin Pitt, 2016-06-16
-
[Bug 1531768] Re: [arm64] lockups when idle if tickless (nohz=on) is used
From: Martin Pitt, 2016-06-15
-
[Bug 1531768] Re: [arm64] lockups when idle if tickless (nohz=on) is used
From: Martin Pitt, 2016-06-14
-
[Bug 1531768] Re: [arm64] lockups when idle if tickless (nohz=on) is used
From: Colin Ian King, 2016-06-14
-
[Bug 1531768] Re: [arm64] lockups when idle if tickless (nohz=on) is used
From: Paul Gear, 2016-06-14
-
[Bug 1531768] Re: [arm64] lockups when idle if tickless (nohz=on) is used
From: Colin Ian King, 2016-06-14
-
[Bug 1531768] Re: [arm64] locks up some time after booting
From: Martin Pitt, 2016-06-14
-
[Bug 1531768] Re: [arm64] locks up some time after booting
From: Martin Pitt, 2016-06-13
-
[Bug 1531768] Re: [arm64] locks up some time after booting
From: Martin Pitt, 2016-06-13
-
[Bug 1531768] Re: [arm64] locks up some time after booting
From: Martin Pitt, 2016-06-13
-
[Bug 1531768] Re: [arm64] locks up some time after booting
From: Martin Pitt, 2016-05-19
-
[Bug 1531768] Re: [arm64] locks up some time after booting
From: Martin Pitt, 2016-05-19
-
[Bug 1531768] Re: [arm64] locks up some time after booting
From: Colin Ian King, 2016-05-18
-
[Bug 1531768] Re: [arm64] locks up some time after booting
From: Martin Pitt, 2016-05-17
-
[Bug 1531768] Re: [arm64] locks up some time after booting
From: Martin Pitt, 2016-05-17
-
[Bug 1531768] Re: [arm64] locks up some time after booting
From: Colin Ian King, 2016-05-16
-
[Bug 1531768] Re: [arm64] locks up some time after booting
From: Martin Pitt, 2016-05-16
-
[Bug 1531768] Re: [arm64] locks up some time after booting
From: Colin Ian King, 2016-05-13
-
[Bug 1531768] Re: [arm64] locks up some time after booting
From: Colin Ian King, 2016-04-28
-
[Bug 1531768] Re: [arm64] locks up some time after booting
From: Martin Pitt, 2016-04-27
-
[Bug 1531768] Re: [arm64] locks up a few minutes after booting
From: Martin Pitt, 2016-04-15
-
[Bug 1531768] Re: [arm64] locks up a few minutes after booting
From: Martin Pitt, 2016-04-13
-
[Bug 1531768] Re: [arm64] locks up a few minutes after booting
From: Martin Pitt, 2016-03-01
-
[Bug 1531768] Re: [arm64] multithreaded processes get locked up in futexes
From: Martin Pitt, 2016-02-17
-
[Bug 1531768] Re: [arm64] multithreaded processes get locked up in futexes
From: Martin Pitt, 2016-02-02
-
[Bug 1531768] Re: [arm64] multithreaded processes get locked up in futexes
From: Martin Pitt, 2016-02-02
-
[Bug 1531768] Re: [arm64] multithreaded processes get locked up in futexes
From: Martin Pitt, 2016-02-02
-
[Bug 1531768] Re: lxd and other commands get stuck on arm64 kernel and multiple CPUs
From: Stéphane Graber, 2016-02-02
-
[Bug 1531768] Re: lxd and other commands get stuck on arm64 kernel and multiple CPUs
From: Martin Pitt, 2016-02-02
-
[Bug 1531768] Re: lxd and other commands get stuck on arm64 kernel and multiple CPUs
From: Martin Pitt, 2016-01-28
-
[Bug 1531768] Re: lxd and other commands get stuck on arm64 kernel and multiple CPUs
From: Martin Pitt, 2016-01-26
-
[Bug 1531768] Re: arm64 kernel and multiple CPUs is unusably slow
From: Martin Pitt, 2016-01-26
-
[Bug 1531768] Re: arm64 kernel and multiple CPUs is unusably slow
From: Martin Pitt, 2016-01-15
-
[Bug 1531768] Re: arm64 kernel and multiple CPUs is unusably slow
From: Martin Pitt, 2016-01-15
-
[Bug 1531768] Re: arm64 kernel and multiple CPUs is unusably slow
From: Andy Whitcroft, 2016-01-15
-
[Bug 1531768] Re: arm64 kernel and multiple CPUs is unusably slow
From: Andy Whitcroft, 2016-01-15
-
[Bug 1531768] Re: arm64 kernel and multiple CPUs is unusably slow
From: Martin Pitt, 2016-01-15
-
[Bug 1531768] Re: arm64 kernel and multiple CPUs is unusably slow
From: Martin Pitt, 2016-01-15
-
[Bug 1531768] Re: arm64 kernel and multiple CPUs is unusably slow
From: Martin Pitt, 2016-01-07
-
[Bug 1531768] Re: arm64 kernel and multiple CPUs is unusably slow
From: Joseph Salisbury, 2016-01-07
-
[Bug 1531768] Re: arm64 kernel and multiple CPUs is unusably slow
From: Alberto Salvia Novella, 2016-01-07
-
[Bug 1531768] Re: arm64 kernel and multiple CPUs is unusably slow
From: Chris J Arges, 2016-01-07
-
[Bug 1531768] Re: arm64 kernel and multiple CPUs is unusably slow
From: Martin Pitt, 2016-01-07
-
[Bug 1531768] Re: arm64 kernel and multiple CPUs is unusably slow with lxd operations
From: Martin Pitt, 2016-01-07
-
[Bug 1531768] Re: kernel 4.2/wily on arm64 and multiple CPUs is unusably slow
From: Martin Pitt, 2016-01-07
-
[Bug 1531768] Re: kernel 4.2/wily on arm64 and multiple CPUs is unusably slow
From: Martin Pitt, 2016-01-07
-
[Bug 1531768] Re: kernel 4.2/wily on arm64 and multiple CPUs is unusably slow
From: Martin Pitt, 2016-01-07
-
[Bug 1531768] Missing required logs.
From: Brad Figg, 2016-01-07
-
[Bug 1531768] Re: kernel 4.2/wily on arm64 and multiple CPUs is unusably slow
From: Martin Pitt, 2016-01-07