** Description changed:
- I tried to upgrade linux kernel, from 4.10.0-26 to 4.10.0-28, but the
- installation hung on the following output lines:
+ Impact
+ ------
+ Many packages call pymouth --ping and if plymouthd is hung then the package
installations can fail.
+
+
+ Test Case
+ ---------
+ 1) Run 'sudo /sbin/plymouthd --mode=boot --attach-to-session
--pid-file=/run/plymouth/pid'
+ 2) Observe plymouthd is running ('ps aux | grep plymouth')
+ 3) stop the plymouthd process 'sudo kill -STOP $PID'
+ 4) Run 'plymouth --ping --debug'
+ 5) Observe that the plymouth --ping command hangs
+
+ With the version of plymouth from -proposed you will receive the
+ following output instead.
+
+ bdmurray@clean-artful-amd64:~$ plymouth --ping --debug
+ [ply-event-loop.c:759] ply_event_loop_stop_watching_fd:stopping
watching fd 6
+ [ply-event-loop.c:775] ply_event_loop_stop_watching_fd:removing
destination for fd 6
+ [./plymouth.c:82] timeout_handler:ping: timed
out waiting for plymouthd
+ [./ply-boot-client.c:810]
ply_boot_client_detach_from_event_loop:detaching from event loop
+
+ Notice how the ping command times out.
+
+ Regression Potential
+ --------------------
+ Its possible that the timeout of 2 seconds isn't long enough but that seems
unlikely.
+
+ Original Description
+ --------------------
+ I tried to upgrade linux kernel, from 4.10.0-26 to 4.10.0-28, but the
installation hung on the following output lines:
sudo apt-get install unrar linux-generic linux-headers-generic
linux-image-generic linux-signed-generic linux-signed-image-generic
Configurazione di linux-image-4.10.0-28-generic (4.10.0-28.32)...
Running depmod.
update-initramfs: deferring update (hook will be called later)
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal
4.10.0-28-generic /boot/vmlinuz-4.10.0-28-generic
run-parts: executing /etc/kernel/postinst.d/dkms 4.10.0-28-generic
/boot/vmlinuz-4.10.0-28-generic
Then I looked at the running processes, and noticed this one was
blocking post-installation:
plymouth --ping
I could not but manually kill plymouth, then the script resumed just to
freeze again a few line later and so on, but is that safe for the
installation?
- ProblemType: Bug
- DistroRelease: Ubuntu 17.04
+ ProblemType: BugDistroRelease: Ubuntu 17.04
Package: plymouth 0.9.2-3ubuntu15
ProcVersionSignature: Ubuntu 4.10.0-26.30-generic 4.10.17
Uname: Linux 4.10.0-26-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.4-0ubuntu4.4
Architecture: amd64
CurrentDesktop: GNOME
Date: Wed Jul 19 22:32:14 2017
DefaultPlymouth:
/usr/share/plymouth/themes/ubuntu-gnome-logo/ubuntu-gnome-logo.plymouth
InstallationDate: Installed on 2017-05-22 (58 days ago)
InstallationMedia: Ubuntu-GNOME 17.04 "Zesty Zapus" - Release amd64 (20170412)
MachineType: Dell Inc. Precision M4800
ProcCmdLine: BOOT_IMAGE=/vmlinuz-4.10.0-26-generic.efi.signed
root=/dev/mapper/vg-root ro quiet splash vt.handoff=7
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=it_IT.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
- ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.10.0-26-generic.efi.signed
root=/dev/mapper/vg-root ro quiet splash vt.handoff=7
- SourcePackage: plymouth
+ ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.10.0-26-generic.efi.signed
root=/dev/mapper/vg-root ro quiet splash vt.handoff=7SourcePackage: plymouth
TextPlymouth:
/usr/share/plymouth/themes/ubuntu-gnome-text/ubuntu-gnome-text.plymouth
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/02/2014
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A06
dmi.board.name: 0T3YTY
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA06:bd01/02/2014:svnDellInc.:pnPrecisionM4800:pvr01:rvnDellInc.:rn0T3YTY:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Precision M4800
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1705345
Title:
Installing packages hangs on plymouth --ping
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/plymouth/+bug/1705345/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
