Comment 15 for bug 1830427

Verified 1.0.0-0ubuntu4.19.04.1 on Disco:
[ 667.432620] Adding 4095996k swap on /swap-hibinit. Priority:-2 extents:14 across:5316604k SSFS
[ 667.451291] PM: Starting manual resume from disk
[ 667.453925] PM: Image not found (code -22)
[ 667.525076] PM: hibernation entry
[ 667.530246] PM: Syncing filesystems ...
[ 667.540593] PM: done.
[ 667.540594] Freezing user space processes ... (elapsed 0.001 seconds) done.
[ 667.541838] OOM killer disabled.
[ 667.541900] PM: Marking nosave pages: [mem 0x00000000-0x00000fff]
[ 667.541901] PM: Marking nosave pages: [mem 0x0009e000-0x000fffff]
[ 667.541903] PM: Basic memory bitmaps created
[ 667.541917] PM: Preallocating image memory... done (allocated 158813 pages)
[ 667.607919] PM: Allocated 635252 kbytes in 0.06 seconds (10587.53 MB/s)
[ 667.607920] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
[ 667.643576] ACPI: Preparing to enter system sleep state S4
[ 667.643656] PM: Saving platform NVS memory
[ 667.643657] Disabling non-boot CPUs ...
[ 667.661860] smpboot: CPU 1 is now offline
[ 667.664542] PM: Creating hibernation image:
[ 667.710987] PM: Need to copy 157198 pages
[ 667.710991] PM: Normal pages needed: 157198 + 1024, available pages: 825676
[ 667.710991] PM: Restoring platform NVS memory
[ 15.799884] xen:grant_table: Grant tables using version 1 layout
[ 15.799918] xen: restored ACPI SCI interrupt
[ 15.802117] Enabling non-boot CPUs ...
[ 15.802131] installing Xen timer for CPU 1
[ 15.802261] x86: Booting SMP configuration:
[ 15.802262] smpboot: Booting Node 0 Processor 1 APIC 0x1
[ 15.802896] cpu 1 spinlock event irq 59
[ 15.802931] cache: parent cpu1 should not be sleeping
[ 15.803323] CPU1 is up
[ 15.803384] ACPI: Waking up from system sleep state S4
[ 15.835046] blkfront: xvda: barrier or flush: disabled; persistent grants: disabled; indirect descriptors: enabled;
[ 15.839297] Setting capacity to 41943040
[ 15.856794] PM: Basic memory bitmaps freed
[ 15.856795] OOM killer enabled.
[ 15.856796] Restarting tasks ... done.
[ 15.868690] PM: hibernation exit
[ 15.870979] ixgbevf 0000:00:03.0: NIC Link is Up 10 Gbps
[ 2937.302823] Adding 4095996k swap on /swap-hibinit. Priority:-2 extents:14 across:5316604k SSFS
[ 2937.314711] PM: Starting manual resume from disk
[ 2937.317271] PM: Image not found (code -22)
[ 2937.384285] PM: hibernation entry
[ 2937.388380] PM: Syncing filesystems ...
[ 2937.397604] PM: done.
[ 2937.397605] Freezing user space processes ... (elapsed 0.001 seconds) done.
[ 2937.398817] OOM killer disabled.
[ 2937.398864] PM: Marking nosave pages: [mem 0x00000000-0x00000fff]
[ 2937.398865] PM: Marking nosave pages: [mem 0x0009e000-0x000fffff]
[ 2937.398867] PM: Basic memory bitmaps created
[ 2937.398873] PM: Preallocating image memory... done (allocated 162396 pages)
[ 2937.464010] PM: Allocated 649584 kbytes in 0.06 seconds (10826.40 MB/s)
[ 2937.464010] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
[ 2937.503708] ACPI: Preparing to enter system sleep state S4
[ 2937.503790] PM: Saving platform NVS memory
[ 2937.503791] Disabling non-boot CPUs ...
[ 2937.525003] smpboot: CPU 1 is now offline
[ 2937.526654] PM: Creating hibernation image:
[ 2937.571861] PM: Need to copy 160705 pages
[ 2937.571864] PM: Normal pages needed: 160705 + 1024, available pages: 822160
[ 2937.571864] PM: Restoring platform NVS memory
[ 15.997231] xen:grant_table: Grant tables using version 1 layout
[ 15.997262] xen: restored ACPI SCI interrupt
[ 15.998923] Enabling non-boot CPUs ...
[ 15.998938] installing Xen timer for CPU 1
[ 15.999075] x86: Booting SMP configuration:
[ 15.999075] smpboot: Booting Node 0 Processor 1 APIC 0x1
[ 15.999691] cpu 1 spinlock event irq 59
[ 15.999725] cache: parent cpu1 should not be sleeping
[ 16.000127] CPU1 is up
[ 16.000188] ACPI: Waking up from system sleep state S4
[ 16.037988] blkfront: xvda: barrier or flush: disabled; persistent grants: disabled; indirect descriptors: enabled;
[ 16.042501] Setting capacity to 41943040
[ 16.051286] PM: Basic memory bitmaps freed
[ 16.051287] OOM killer enabled.
[ 16.051287] Restarting tasks ... done.
[ 16.065708] PM: hibernation exit
[ 16.083624] ixgbevf 0000:00:03.0: NIC Link is Up 10 Gbps
ubuntu@ip-172-31-10-75:~$ screen -ls
There is a screen on:
 2027..ip-172-31-10-75 (06/21/19 11:41:30) (Detached)
1 Socket in /run/screen/S-ubuntu.
ubuntu@ip-172-31-10-75:~$ dpkg -l ec2-hibinit-agent | cat
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-=================-======================-============-=================================
ii ec2-hibinit-agent 1.0.0-0ubuntu4.19.04.1 all Amazon EC2 hibernation agent
ubuntu@ip-172-31-10-75:~$ cat /etc/issue
Ubuntu 19.04 \n \l