linux-kernel - PM: hibernation: Image allocation is 28906 pages short

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Date: Fri, 29 Mar 2024 11:10:29 +0100
From: Paul Menzel <pmenzel@...gen.mpg.de>
To: "Rafael J. Wysocki" <rafael@...nel.org>, Pavel Machek <pavel@....cz>
Cc: linux-pm@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: PM: hibernation: Image allocation is 28906 pages short

Dear Linux folks,


On a Dell XPS 13 9360/0596KF, BIOS 2.21.0 06/02/2022 with Debian 
sid/unstable and self-built Linux 6.9-rc1+ with one patch on top [1] and 
KASAN enabled

     $ git log --no-decorate --oneline -2 a2ce022afcbb
     a2ce022afcbb [PATCH] kbuild: Disable KCSAN for autogenerated 
*.mod.c intermediaries
     8d025e2092e2 Merge tag 'erofs-for-6.9-rc2-fixes' of 
git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs

the system tried to hibernate, but failed:

     [13039.861870] PM: hibernation: hibernation entry
     [13039.881356] Filesystems sync: 0.015 seconds
     [13039.881899] Freezing user space processes
     [13039.890395] Freezing user space processes completed (elapsed 
0.008 seconds)
     [13039.890412] OOM killer disabled.
     [13039.890867] PM: hibernation: Marking nosave pages: [mem 
0x00000000-0x00000fff]
     [13039.890878] PM: hibernation: Marking nosave pages: [mem 
0x00058000-0x00058fff]
     [13039.890884] PM: hibernation: Marking nosave pages: [mem 
0x0009e000-0x000fffff]
     [13039.890893] PM: hibernation: Marking nosave pages: [mem 
0x5014f000-0x5014ffff]
     [13039.890900] PM: hibernation: Marking nosave pages: [mem 
0x5015f000-0x5015ffff]
     [13039.890906] PM: hibernation: Marking nosave pages: [mem 
0x556ab000-0x556acfff]
     [13039.890911] PM: hibernation: Marking nosave pages: [mem 
0x62260000-0x623ecfff]
     [13039.890930] PM: hibernation: Marking nosave pages: [mem 
0x64df4000-0x6fffefff]
     [13039.892520] PM: hibernation: Marking nosave pages: [mem 
0x70000000-0x77ffffff]
     [13039.892856] PM: hibernation: Marking nosave pages: [mem 
0x78600000-0xffffffff]
     [13039.899188] PM: hibernation: Basic memory bitmaps created
     [13039.899194] PM: hibernation: Preallocating image memory
     [13072.278083] PM: hibernation: Image allocation is 28906 pages short
     [13072.886745] PM: hibernation: Basic memory bitmaps freed
     [13072.887104] OOM killer enabled.
     [13072.887107] Restarting tasks ... done.
     [13073.641158] PM: hibernation: hibernation exit
     [13073.846851] Process accounting resumed
     [13074.335528] PM: suspend entry (deep)

Where is that image allocated? On the disk? There is still 65 GB of 
space, so 16 GB of memory should fit? Could the error message be 
improved, so users know more details to fix it?


Kind regards,

Paul


[1]: 
https://lore.kernel.org/all/20240326202548.GLZgMvTGpPfQcs2cQ_@fat_crate.local/
View attachment "20240328--dell-xps-13-9360--linux-6.9-rc1+--messages.txt" of type "text/plain" (204896 bytes)