I'm trying to bisect the bug, but I have some problem doing it.
I have cloned the branch hwe of git://kernel.ubuntu.com/ubuntu/ubuntu-
xenial.git, using "git clone -b hwe git://kernel.ubuntu.com/ubuntu
/ubuntu-xenial.git"
Then I have built the kernel (just to test the build process) using
"fakeroot debian/rules binary-headers binary-generic binary-perarch" and
this worked as expected.
Then I started bisecting using "git bisect start Ubuntu-
hwe-4.13.0-32.35_16.04.1 Ubuntu-hwe-4.10.0-40.44_16.04.1", which seems
to work as expected:
Bisecting: a merge base must be tested
[c470abd4fde40ea6a0846a2beab642a578c0b8cd] Linux 4.10
The build command ("fakeroot debian/rules binary-headers binary-generic
binary-perarch") fails with : "/usr/bin/fakeroot: line 175:
debian/rules: No such file or directory"
There is no more debian directory, I don't understand how this git
repository is working...
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https://bugs.launchpad.net/bugs/1747597
Title:
Number of processes exploded after upgrade to 4.13.0-32-generic
Status in linux package in Ubuntu:
Confirmed
Bug description:
After an update from 4.10.0-40-generic to 4.13.0-32-generic (ubuntu
16.04 + hwe kernel), the number of process when doing IO on my machine
has exploded.
Before the update, maximum number of process : 284
After the update, doing a simple rsync to an external disk : 771
The system is now unstable and crashes. The processes are hundreds of
"kworker".
Please let me know if there is something more needed.
---
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Feb 6 09:04 seq
crw-rw---- 1 root audio 116, 33 Feb 6 09:04 timer
AlsaVersion: Advanced Linux Sound Architecture Driver Version
k4.13.0-32-generic.
AplayDevices: aplay: device_list:268: no soundcards found...
ApportVersion: 2.20.1-0ubuntu2.15
Architecture: amd64
ArecordDevices: arecord: device_list:268: no soundcards found...
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
DistroRelease: Ubuntu 16.04
IwConfig: Error: [Errno 2] No such file or directory
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
Package: linux (not installed)
PciMultimedia:
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-32-generic
root=UUID=ef4f1569-51cf-478d-868c-78a3b7f04a2c ro
ProcVersionSignature: Ubuntu 4.13.0-32.35~16.04.1-generic 4.13.13
RelatedPackageVersions:
linux-restricted-modules-4.13.0-32-generic N/A
linux-backports-modules-4.13.0-32-generic N/A
linux-firmware 1.157.15
RfKill: Error: [Errno 2] No such file or directory
Tags: xenial
Uname: Linux 4.13.0-32-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm audio cdrom dip kvm libvirtd lpadmin lxd plugdev sambashare
sudo sudo-no-log video
_MarkForUpload: True
dmi.bios.date: 05/17/2016
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P2.70
dmi.board.name: Z97 Extreme6
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrP2.70:bd05/17/2016:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnZ97Extreme6:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.family: To Be Filled By O.E.M.
dmi.product.name: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.
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