GNU bug report logs - #62711
Suspend-to-disk with LUKS-encrypted root doesn’t work

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Ludovic Courtès <ludo <at> gnu.org>
Subject: bug#62711: closed (Re: bug#62711: Suspend-to-disk with
 LUKS-encrypted root doesn’t work)
Date: Sat, 20 May 2023 23:20:02 +0000

[Message part 1 (text/plain, inline)]

Your bug report

#62711: Suspend-to-disk with LUKS-encrypted root doesn’t work

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 62711 <at> debbugs.gnu.org.

-- 
62711: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=62711
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: Ludovic Courtès <ludo <at> gnu.org>
To: Mekeor Melire <mekeor <at> posteo.de>
Cc: 62711-done <at> debbugs.gnu.org, Josselin Poiret <dev <at> jpoiret.xyz>
Subject: Re: bug#62711: Suspend-to-disk with LUKS-encrypted root
 doesn’t work
Date: Sun, 21 May 2023 01:19:37 +0200

Hi,

Ludovic Courtès <ludo <at> gnu.org> skribis:

> Mekeor Melire <mekeor <at> posteo.de> skribis:
>
>> (kernel-arguments
>>   (cons*
>>     "resume=/dev/mapper/cryptroot"
>
> Ooh, got it, that’s the part I got wrong.
>
> Thanks to the two of your for explaining!
>
> How about this change:

I finally pushed a simpler change as commit
7d1d5e16da6f1b37b3e0c16adf44b8e305e1e5bd.

Ludo’.

[Message part 3 (message/rfc822, inline)]

From: Ludovic Courtès <ludo <at> gnu.org>
To: bug-guix <at> gnu.org
Subject: Suspend-to-disk with LUKS-encrypted root doesn’t work
Date: Fri, 07 Apr 2023 14:42:58 +0200

Hello!

Since my laptop’s battery died, I set up suspend-to-disk as documented
in the manual (info "(guix) Swap Space").  I use a swap file on top of
my LUKS-encrypted root partition, so I added:

     "resume=/swap"
     "resume_offset=OFFSET"

to my ‘kernel-arguments’ field, where OFFSET is given by ‘filefrag’.

However, when resuming, it looks as though the kernel is not even trying
to resume:

--8<---------------cut here---------------start------------->8---
Apr  7 14:29:47 localhost vmunix: [    0.000000] Linux version 6.2.9-gnu (guix <at> guix) (gcc (GCC) 10.3.0, GNU ld (GNU Binutils) 2.37) #1 SMP PREEMPT_DYNAMIC 1
Apr  7 14:29:47 localhost vmunix: [    0.000000] Command line: BOOT_IMAGE=/gnu/store/6441f00fkyg1r6jpj7f0qpa798svsggv-linux-libre-6.2.9/bzImage root=root gnu.system=/gnu/store/rsv7gc69ishn0cvd8151083i367zp0v2-system gnu.load=/gnu/store/rsv7gc69ishn0cvd8151083i367zp0v2-system/boot modprobe.blacklist=usbmouse,usbkbd,iwlwifi resume=/swap resume_offset=118786729 quiet
Apr  7 14:29:47 localhost vmunix: [    0.000000] KERNEL supported cpus:
Apr  7 14:29:47 localhost vmunix: [    0.000000]   Intel GenuineIntel
Apr  7 14:29:47 localhost vmunix: [    0.000000]   AMD AuthenticAMD

[...]

Apr  7 14:29:47 localhost vmunix: [    0.043725] smpboot: Allowing 4 CPUs, 0 hotplug CPUs
Apr  7 14:29:47 localhost vmunix: [    0.043748] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff]
Apr  7 14:29:47 localhost vmunix: [    0.043750] PM: hibernation: Registered nosave memory: [mem 0x00058000-0x00058fff]
Apr  7 14:29:47 localhost vmunix: [    0.043753] PM: hibernation: Registered nosave memory: [mem 0x0009e000-0x0009efff]
Apr  7 14:29:47 localhost vmunix: [    0.043755] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000fffff]
Apr  7 14:29:47 localhost vmunix: [    0.043757] PM: hibernation: Registered nosave memory: [mem 0xb8a36000-0xb8a3dfff]
Apr  7 14:29:47 localhost vmunix: [    0.043759] PM: hibernation: Registered nosave memory: [mem 0xc70fb000-0xc75fafff]
Apr  7 14:29:47 localhost vmunix: [    0.043760] PM: hibernation: Registered nosave memory: [mem 0xc75fb000-0xc7c7efff]
Apr  7 14:29:47 localhost vmunix: [    0.043761] PM: hibernation: Registered nosave memory: [mem 0xc7c7f000-0xc7e7efff]
Apr  7 14:29:47 localhost vmunix: [    0.043762] PM: hibernation: Registered nosave memory: [mem 0xc7e7f000-0xc7efefff]
Apr  7 14:29:47 localhost vmunix: [    0.043764] PM: hibernation: Registered nosave memory: [mem 0xc7f00000-0xcc7fffff]
Apr  7 14:29:47 localhost vmunix: [    0.043765] PM: hibernation: Registered nosave memory: [mem 0xcc800000-0xf80f9fff]
Apr  7 14:29:47 localhost vmunix: [    0.043766] PM: hibernation: Registered nosave memory: [mem 0xf80fa000-0xf80fafff]
Apr  7 14:29:47 localhost vmunix: [    0.043767] PM: hibernation: Registered nosave memory: [mem 0xf80fb000-0xf80fcfff]
Apr  7 14:29:47 localhost vmunix: [    0.043768] PM: hibernation: Registered nosave memory: [mem 0xf80fd000-0xf80fdfff]
Apr  7 14:29:47 localhost vmunix: [    0.043768] PM: hibernation: Registered nosave memory: [mem 0xf80fe000-0xfdffffff]
Apr  7 14:29:47 localhost vmunix: [    0.043769] PM: hibernation: Registered nosave memory: [mem 0xfe000000-0xfe010fff]
Apr  7 14:29:47 localhost vmunix: [    0.043770] PM: hibernation: Registered nosave memory: [mem 0xfe011000-0xffffffff]
Apr  7 14:29:47 localhost vmunix: [    0.043772] [mem 0xcc800000-0xf80f9fff] available for PCI devices
Apr  7 14:29:47 localhost vmunix: [    0.043773] Booting paravirtualized kernel on bare hardware
Apr  7 14:29:47 localhost vmunix: [    0.043775] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645519600211568 ns
Apr  7 14:29:47 localhost vmunix: [    0.043785] setup_percpu: NR_CPUS:256 nr_cpumask_bits:4 nr_cpu_ids:4 nr_node_ids:1
Apr  7 14:29:47 localhost vmunix: [    0.044150] percpu: Embedded 57 pages/cpu s194792 r8192 d30488 u524288
Apr  7 14:29:47 localhost vmunix: [    0.044189] Fallback order for Node 0: 0 
Apr  7 14:29:47 localhost vmunix: [    0.044192] Built 1 zonelists, mobility grouping on.  Total pages: 4098520
Apr  7 14:29:47 localhost vmunix: [    0.044193] Policy zone: Normal
Apr  7 14:29:47 localhost vmunix: [    0.044194] Kernel command line: BOOT_IMAGE=/gnu/store/6441f00fkyg1r6jpj7f0qpa798svsggv-linux-libre-6.2.9/bzImage root=root gnu.system=/gnu/store/rsv7gc69ishn0cvd8151083i367zp0v2-system gnu.load=/gnu/store/rsv7gc69ishn0cvd8151083i367zp0v2-system/boot modprobe.blacklist=usbmouse,usbkbd,iwlwifi resume=/swap resume_offset=118786729 quiet
Apr  7 14:29:47 localhost vmunix: [    0.044318] Unknown kernel command line parameters "BOOT_IMAGE=/gnu/store/6441f00fkyg1r6jpj7f0qpa798svsggv-linux-libre-6.2.9/bzImage", will be passed to user space.
Apr  7 14:29:47 localhost vmunix: [    0.044342] random: crng init done

[...]

Apr  7 14:29:47 localhost vmunix: [    0.946203] sd 2:0:0:0: Attached scsi generic sg0 type 0
Apr  7 14:29:47 localhost vmunix: [    0.946436] sd 2:0:0:0: [sda] 1000215216 512-byte logical blocks: (512 GB/477 GiB)
Apr  7 14:29:47 localhost vmunix: [    0.946447] sd 2:0:0:0: [sda] 4096-byte physical blocks
Apr  7 14:29:47 localhost vmunix: [    0.946490] sd 2:0:0:0: [sda] Write Protect is off
Apr  7 14:29:47 localhost vmunix: [    0.946722] sd 2:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
Apr  7 14:29:47 localhost vmunix: [    0.946873] sd 2:0:0:0: [sda] Preferred minimum I/O size 4096 bytes
Apr  7 14:29:47 localhost vmunix: [    0.969038]  sda: sda1 sda2 sda3
Apr  7 14:29:47 localhost vmunix: [    0.969435] sd 2:0:0:0: [sda] Attached SCSI disk
Apr  7 14:29:47 localhost vmunix: [    0.974847] usbcore: registered new interface driver usb-storage

[...]

Apr  7 14:29:47 localhost vmunix: [    2.106128] usb 1-9: Manufacturer: Generic
Apr  7 14:29:47 localhost vmunix: [    2.106132] usb 1-9: SerialNumber: 200901010001
Apr  7 14:29:47 localhost vmunix: [   13.073755] EXT4-fs (dm-0): mounted filesystem d25675c9-c26a-487d-a6e4-0bab06b2474b with ordered data mode. Quota mode: none.
Apr  7 14:29:47 localhost vmunix: [   14.350824] shepherd[1]: Starting service root...
Apr  7 14:29:47 localhost vmunix: [   14.351331] shepherd[1]: Service root started.
Apr  7 14:29:47 localhost vmunix: [   14.351787] shepherd[1]: Service root running with value #t.
Apr  7 14:29:47 localhost vmunix: [   14.353268] shepherd[1]: Service root has been started.
Apr  7 14:29:47 localhost vmunix: [   14.806435] shepherd[1]: starting services...
Apr  7 14:29:47 localhost vmunix: [   14.810401] shepherd[1]: Starting service user-file-systems...
Apr  7 14:29:47 localhost vmunix: [   14.813909] shepherd[1]: Starting service root-file-system...
Apr  7 14:29:47 localhost vmunix: [   14.814404] shepherd[1]: Starting service host-name...
Apr  7 14:29:47 localhost vmunix: [   14.815015] shepherd[1]: Starting service sysctl...
Apr  7 14:29:47 localhost vmunix: [   14.815373] shepherd[1]: Starting service loopback...
--8<---------------cut here---------------end--------------->8---

Hibernation (with ‘echo disk > /sys/power/state’) did seem to succeed,
with this one message:

--8<---------------cut here---------------start------------->8---
Apr  7 12:39:30 localhost vmunix: [14219.893014] PM: hibernation: hibernation entry
--8<---------------cut here---------------end--------------->8---

Am I missing something?

Thanks,
Ludo’.

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