** Description changed:
+ [impact]
+
+ unable to resume from hibernation when resume= boot param is specified
+ as device path
+
+ [test case]
+
+ set up device/partition for swap, e.g. /dev/vda2
+
+ add 'resume=/dev/vda2' kernel boot parameter
+
+ hibernate
+
+ power system back on; it should resume from /dev/vda2 instead of
+ coldboot
+
+ [regression potential]
+
+ any regression would likely result in failure to correctly resume from
+ hibernation, incorrectly attempting to resume from hibernation, or
+ failing to resume from hibernation.
+
+ [scope]
+
+ this is needed in b/f/g/h
+
+ this bug was introduced, ironically, by bug 1644975, which was added in
+ bionic, so this bug doesn't exist in xenial.
+
+ this code that introduced this bug isn't included in Debian, so no
+ change is needed there.
+
+ [original description]
+
I originally experienced this on Pop!_OS but I have reproduced it on a
freshly installed Ubuntu.
1. Ubuntu 20.04 LTS
2. initramfs-tools-core 0.136ubuntu6
3. I expect the system to resume from hibernation when running pm_hibernate
4. The system starts up anew when I try to resume
I have setup a swap partition on /dev/vda2 in /etc/fstab. To enable
hibernate I added the kernel parameter "resume=/dev/vda2" to
GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub and run update-grub.
From debugging initramfs it tries to follow a symbolic link
DEV=$(readlink "$resume")
(see /usr/share/initramfs-tools/scripts/local-premount/resume, line 35)
which works well when swap is specified with uuid. When swap is
specified as a device directly the readlink returns an empty string and
the system does not resume from hibernation.
To verify this I added the parameter -f to readlink and run "update-
initramfs -u". The system now hibernates successfully.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: initramfs-tools 0.136ubuntu6
ProcVersionSignature: Ubuntu 5.4.0-28.32-generic 5.4.30
Uname: Linux 5.4.0-28-generic x86_64
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sun May 3 13:26:02 2020
InstallationDate: Installed on 2020-05-03 (0 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
PackageArchitecture: all
SourcePackage: initramfs-tools
UpgradeStatus: No upgrade log present (probably fresh install)
** Also affects: initramfs-tools (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: initramfs-tools (Ubuntu Hirsute)
Importance: Medium
Status: Confirmed
** Also affects: initramfs-tools (Ubuntu Groovy)
Importance: Undecided
Status: New
** Also affects: initramfs-tools (Ubuntu Bionic)
Importance: Undecided
Status: New
** Changed in: initramfs-tools (Ubuntu Hirsute)
Assignee: (unassigned) => Dan Streetman (ddstreet)
** Changed in: initramfs-tools (Ubuntu Groovy)
Assignee: (unassigned) => Dan Streetman (ddstreet)
** Changed in: initramfs-tools (Ubuntu Focal)
Assignee: (unassigned) => Dan Streetman (ddstreet)
** Changed in: initramfs-tools (Ubuntu Bionic)
Assignee: (unassigned) => Dan Streetman (ddstreet)
** Changed in: initramfs-tools (Ubuntu Groovy)
Importance: Undecided => Medium
** Changed in: initramfs-tools (Ubuntu Focal)
Importance: Undecided => Medium
** Changed in: initramfs-tools (Ubuntu Bionic)
Importance: Undecided => Medium
** Changed in: initramfs-tools (Ubuntu Bionic)
Status: New => In Progress
** Changed in: initramfs-tools (Ubuntu Focal)
Status: New => In Progress
** Changed in: initramfs-tools (Ubuntu Groovy)
Status: New => In Progress
** Changed in: initramfs-tools (Ubuntu Hirsute)
Status: Confirmed => In Progress
--
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to initramfs-tools in Ubuntu.
https://bugs.launchpad.net/bugs/1876570
Title:
Could not resume from hibernation when swap is specified as device
Status in initramfs-tools package in Ubuntu:
In Progress
Status in initramfs-tools source package in Bionic:
In Progress
Status in initramfs-tools source package in Focal:
In Progress
Status in initramfs-tools source package in Groovy:
In Progress
Status in initramfs-tools source package in Hirsute:
In Progress
Bug description:
[impact]
unable to resume from hibernation when resume= boot param is specified
as device path
[test case]
set up device/partition for swap, e.g. /dev/vda2
add 'resume=/dev/vda2' kernel boot parameter
hibernate
power system back on; it should resume from /dev/vda2 instead of
coldboot
[regression potential]
any regression would likely result in failure to correctly resume from
hibernation, incorrectly attempting to resume from hibernation, or
failing to resume from hibernation.
[scope]
this is needed in b/f/g/h
this bug was introduced, ironically, by bug 1644975, which was added
in bionic, so this bug doesn't exist in xenial.
this code that introduced this bug isn't included in Debian, so no
change is needed there.
[original description]
I originally experienced this on Pop!_OS but I have reproduced it on a
freshly installed Ubuntu.
1. Ubuntu 20.04 LTS
2. initramfs-tools-core 0.136ubuntu6
3. I expect the system to resume from hibernation when running pm_hibernate
4. The system starts up anew when I try to resume
I have setup a swap partition on /dev/vda2 in /etc/fstab. To enable
hibernate I added the kernel parameter "resume=/dev/vda2" to
GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub and run update-grub.
From debugging initramfs it tries to follow a symbolic link
DEV=$(readlink "$resume")
(see /usr/share/initramfs-tools/scripts/local-premount/resume, line 35)
which works well when swap is specified with uuid. When swap is
specified as a device directly the readlink returns an empty string
and the system does not resume from hibernation.
To verify this I added the parameter -f to readlink and run "update-
initramfs -u". The system now hibernates successfully.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: initramfs-tools 0.136ubuntu6
ProcVersionSignature: Ubuntu 5.4.0-28.32-generic 5.4.30
Uname: Linux 5.4.0-28-generic x86_64
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sun May 3 13:26:02 2020
InstallationDate: Installed on 2020-05-03 (0 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
PackageArchitecture: all
SourcePackage: initramfs-tools
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1876570/+subscriptions
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