** Tags added: patch
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https://bugs.launchpad.net/bugs/1886827
Title:
Machine hangs when doing a normal reboot
Status in linux package in Ubuntu:
Incomplete
Bug description:
Hi,
When booting into kernel 4.15.0-99-generic or higher and also kernel
5.3.0-53-generic or higher, the system hangs when issuing the reboot
command or CTRL-ALT-DEL from console with the following console
messages:
---------- snip ------------
Reached target Final Step.
Starting Reboot...
< following message repeats indefinetely every 120 seconds >
INFO: task systemd-shutdow:1 blocked for more than 120 seconds.
Not tainted 4.15.0-99-generic #100
" echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
---------- snip ------------
I did a git bisect procedure between kernels 4.15.0-96-generic and 4.15.0-99
and it reported the following:
---------- snip ------------
b52be79f3c6cc89bb3834c5174843e34f945f386 is the first bad commit
commit b52be79f3c6cc89bb3834c5174843e34f945f386
---------- snip ------------
Ubuntu version affected:
Ubuntu 4.15.0-99.100-generic 4.15.18
First kernel package affected:
linux-image-4.15.0-99-generic
Necessary debug files will be attached as soon as possible.
Quinn
---
ProblemType: Bug
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Jul 9 09:55 seq
crw-rw---- 1 root audio 116, 33 Jul 9 09:55 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
ApportVersion: 2.20.9-0ubuntu7.15
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord':
'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
DistroRelease: Ubuntu 18.04
HibernationDevice: RESUME=/dev/mapper/system-swap
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
Lsusb:
Bus 001 Device 003: ID 0b38:0010 Gear Head 107-Key Keyboard
Bus 001 Device 002: ID 8087:07e6 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: To be filled by O.E.M. To be filled by O.E.M.
Package: linux (not installed)
PciMultimedia:
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.15.0-99-generic
root=/dev/mapper/system-root ro rootflags=subvol=@ biosdevname=0 net.ifnames=0
nomodeset "dyndbg=file drivers/base/* +p"
ProcVersionSignature: Ubuntu 4.15.0-99.100-generic 4.15.18
RelatedPackageVersions:
linux-restricted-modules-4.15.0-99-generic N/A
linux-backports-modules-4.15.0-99-generic N/A
linux-firmware 1.173.18
RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
Tags: bionic
Uname: Linux 4.15.0-99-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip disk plugdev sudo
_MarkForUpload: True
dmi.bios.date: 05/05/2016
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 5.6.5
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: Aptio CRB
dmi.board.vendor: AMI Corporation
dmi.board.version: To be filled by O.E.M.
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.:bvr5.6.5:bd05/05/2016:svnTobefilledbyO.E.M.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnAMICorporation:rnAptioCRB:rvrTobefilledbyO.E.M.: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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