Public bug reported:
Running I/O heavy operation (cp) inside terminal in X server session
will lock up entire system while running it in a TTY works fine.
I am filing this as a kernel bug because the following steps will still
hang the system:
1. Open up gnome-terminal
2. Start copying a really large file between two different EXT4 partitions on
my local SSD with a "cp" command
3. Switch to a TTY
4. Login to TTY and observe htop or iotop
Expected result: I can see the operation happen and after a while it
completes
Actual result: Keyboard drops out some time during operation (TTY stops
responding, caps lock light no longer responds to pressing caps lock,
computer appears effectively dead with last screen image frozen)
When I run the "cp" operation on the TTY to start with, no matter if the X
session is running in parallel or not, it works as expected with no trouble.
ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: linux-generic 4.10.0.19.21
ProcVersionSignature: Ubuntu 4.10.0-19.21-generic 4.10.8
Uname: Linux 4.10.0-19-generic x86_64
ApportVersion: 2.20.4-0ubuntu4
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/pcmC0D0p: jonas 2297 F...m pulseaudio
/dev/snd/controlC0: jonas 2297 F.... pulseaudio
CurrentDesktop: GNOME
Date: Thu Apr 13 13:04:03 2017
InstallationDate: Installed on 2017-04-08 (4 days ago)
InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 138a:0090 Validity Sensors, Inc.
Bus 001 Device 003: ID 13d3:5248 IMC Networks
Bus 001 Device 005: ID 056a:5047 Wacom Co., Ltd
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 20FDCTO1WW
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.10.0-19-generic.efi.signed
root=/dev/mapper/fedora-root ro rootdelay=5 quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-4.10.0-19-generic N/A
linux-backports-modules-4.10.0-19-generic N/A
linux-firmware 1.164
SourcePackage: linux
UpgradeStatus: Upgraded to zesty on 2017-04-12 (1 days ago)
dmi.bios.date: 11/16/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: N1GET35W (1.12 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20FDCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40700 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias:
dmi:bvnLENOVO:bvrN1GET35W(1.12):bd11/16/2015:svnLENOVO:pn20FDCTO1WW:pvrThinkPadYoga260:rvnLENOVO:rn20FDCTO1WW:rvrSDK0J40700WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.name: 20FDCTO1WW
dmi.product.version: ThinkPad Yoga 260
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug zesty
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https://bugs.launchpad.net/bugs/1682402
Title:
Running I/O heavy operation (cp) inside terminal in X server session
will lock up entire system while running it in a TTY works fine
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