Bug#1133220: linux-image-6.12.74+deb13+1-amd64: zstd/lz4 are not activated while using zswap - there is always fallback to lzo

Package: src:linux
Version: 6.12.74-2
Severity: normal
X-Debbugs-Cc: [email protected], [email protected]
User: [email protected]
Usertags: amd64

Hi. This is my first report so do not judge strictly, please.
As always on fresh systems  with small amount RAM I configured zswap to use zstd+zsmalloc
When I've configured modules adding zstd,lz4 and rebult initramfs and rebooted I've saw that there is fallback to lzo.
It happens with both compressors zstd and lz4


Here is my config:
GRUB_CMDLINE_LINUX_DEFAULT="zswap.enabled=1 zswap.compressor=lz4 zswap.zpool=zsmalloc"

# dmesg | grep zswap
[    0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-6.12.74+deb13+1-amd64 root=UUID=12412ff1-8ede-4e90-bf78-c658fc1035c3 ro net.ifnames=0 biosdevname=0 rootdelay=2 root=/dev/vda1 zswap.enabled=1 zswap.compressor=lz4 zswap.zpool=zsmalloc
[    0.044141] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-6.12.74+deb13+1-amd64 root=UUID=12412ff1-8ede-4e90-bf78-c658fc1035c3 ro net.ifnames=0 biosdevname=0 rootdelay=2 root=/dev/vda1 zswap.enabled=1 zswap.compressor=lz4 zswap.zpool=zsmalloc
[    1.046619] zswap: compressor lz4 not available, using default lzo
[    1.047524] zswap: loaded using pool lzo/zsmalloc


# lsinitramfs /boot/initrd.img-$(uname -r) | grep -E 'zstd|zsmalloc|lz4'
usr/lib/modules/6.12.74+deb13+1-amd64/kernel/crypto/lz4.ko.xz
usr/lib/modules/6.12.74+deb13+1-amd64/kernel/crypto/zstd.ko.xz
usr/lib/modules/6.12.74+deb13+1-amd64/kernel/lib/lz4
usr/lib/modules/6.12.74+deb13+1-amd64/kernel/lib/lz4/lz4_compress.ko.xz
usr/lib/modules/6.12.74+deb13+1-amd64/kernel/lib/lz4/lz4hc_compress.ko.xz
usr/lib/x86_64-linux-gnu/libzstd.so.1
usr/lib/x86_64-linux-gnu/libzstd.so.1.5.7



-- Package-specific info:
** Version:
Linux version 6.12.74+deb13+1-amd64 ([email protected]) (x86_64-linux-gnu-gcc-14 (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44) #1 SMP PREEMPT_DYNAMIC Debian 6.12.74-2 (2026-03-08)

** Command line:
BOOT_IMAGE=/boot/vmlinuz-6.12.74+deb13+1-amd64 root=UUID=12412ff1-8ede-4e90-bf78-c658fc1035c3 ro net.ifnames=0 biosdevname=0 rootdelay=2 root=/dev/vda1 zswap.enabled=1 zswap.compressor=lz4 zswap.zpool=zsmalloc

** Not tainted

** Kernel log:
[    4.880419] Not activating Mandatory Access Control as /sbin/tomoyo-init does not exist.
[    5.035978] systemd[1]: Inserted module 'autofs4'
[    5.107197] systemd[1]: systemd 257.9-1~deb13u1 running in system mode (+PAM +AUDIT +SELINUX +APPARMOR +IMA +IPE +SMACK +SECCOMP +GCRYPT -GNUTLS +OPENSSL +ACL +BLKID +CURL +ELFUTILS +FIDO2 +IDN2 -IDN +IPTC +KMOD +LIBCRYPTSETUP +LIBCRYPTSETUP_PLUGINS +LIBFDISK +PCRE2 +PWQUALITY +P11KIT +QRENCODE +TPM2 +BZIP2 +LZ4 +XZ +ZLIB +ZSTD +BPF_FRAMEWORK +BTF -XKBCOMMON -UTMP +SYSVINIT +LIBARCHIVE)
[    5.109422] systemd[1]: Detected virtualization kvm.
[    5.109863] systemd[1]: Detected architecture x86-64.
[    5.117457] systemd[1]: Hostname set to <nerdy>.
[    5.313717] systemd[1]: bpf-restrict-fs: LSM BPF program attached
[    5.467985] Guest personality initialized and is inactive
[    5.469001] VMCI host device registered (name=vmci, major=10, minor=260)
[    5.469246] Initialized host personality
[    5.480548] NET: Registered PF_VSOCK protocol family
[    5.732767] systemd[1]: Queued start job for default target graphical.target.
[    5.756470] systemd[1]: Created slice system-getty.slice - Slice /system/getty.
[    5.758864] systemd[1]: Created slice system-modprobe.slice - Slice /system/modprobe.
[    5.759888] systemd[1]: Created slice user.slice - User and Session Slice.
[    5.760584] systemd[1]: Started systemd-ask-password-console.path - Dispatch Password Requests to Console Directory Watch.
[    5.763021] systemd[1]: Started systemd-ask-password-wall.path - Forward Password Requests to Wall Directory Watch.
[    5.766556] systemd[1]: Set up automount proc-sys-fs-binfmt_misc.automount - Arbitrary Executable File Formats File System Automount Point.
[    5.767500] systemd[1]: Expecting device dev-vda2.device - /dev/vda2...
[    5.768213] systemd[1]: Reached target paths.target - Path Units.
[    5.768994] systemd[1]: Reached target remote-fs.target - Remote File Systems.
[    5.773209] systemd[1]: Reached target slices.target - Slice Units.
[    5.775115] systemd[1]: Listening on syslog.socket - Syslog Socket.
[    5.777473] systemd[1]: Listening on systemd-creds.socket - Credential Encryption/Decryption.
[    5.779574] systemd[1]: Listening on systemd-initctl.socket - initctl Compatibility Named Pipe.
[    5.780615] systemd[1]: Listening on systemd-journald-dev-log.socket - Journal Socket (/dev/log).
[    5.783748] systemd[1]: Listening on systemd-journald.socket - Journal Sockets.
[    5.785024] systemd[1]: systemd-pcrextend.socket - TPM PCR Measurements was skipped because of an unmet condition check (ConditionSecurity=measured-uki).
[    5.786049] systemd[1]: systemd-pcrlock.socket - Make TPM PCR Policy was skipped because of an unmet condition check (ConditionSecurity=measured-uki).
[    5.787203] systemd[1]: Listening on systemd-udevd-control.socket - udev Control Socket.
[    5.788681] systemd[1]: Listening on systemd-udevd-kernel.socket - udev Kernel Socket.
[    5.793492] systemd[1]: Mounting dev-hugepages.mount - Huge Pages File System...
[    5.801553] systemd[1]: Mounting dev-mqueue.mount - POSIX Message Queue File System...
[    5.817794] systemd[1]: Mounting run-lock.mount - Legacy Locks Directory /run/lock...
[    5.826040] systemd[1]: Mounting sys-kernel-debug.mount - Kernel Debug File System...
[    5.846137] systemd[1]: Mounting sys-kernel-tracing.mount - Kernel Trace File System...
[    5.865886] systemd[1]: Starting keyboard-setup.service - Set the console keyboard layout...
[    5.888355] systemd[1]: Starting kmod-static-nodes.service - Create List of Static Device Nodes...
[    5.901738] systemd[1]: Starting [email protected] - Load Kernel Module configfs...
[    5.926114] systemd[1]: Starting [email protected] - Load Kernel Module drm...
[    5.954229] systemd[1]: Starting modprobe@efi_pstore.service - Load Kernel Module efi_pstore...
[    5.994154] systemd[1]: Starting [email protected] - Load Kernel Module fuse...
[    5.997887] systemd[1]: systemd-fsck-root.service - File System Check on Root Device was skipped because of an unmet condition check (ConditionPathExists=!/run/initramfs/fsck-root).
[    5.998632] systemd[1]: systemd-hibernate-clear.service - Clear Stale Hibernate Storage Info was skipped because of an unmet condition check (ConditionPathExists=/sys/firmware/efi/efivars/HibernateLocation-8cf2644b-4b0b-428f-9387-6d876050dc67).
[    6.065796] systemd[1]: Starting systemd-journald.service - Journal Service...
[    6.089737] systemd[1]: Starting systemd-modules-load.service - Load Kernel Modules...
[    6.090611] systemd[1]: systemd-pcrmachine.service - TPM PCR Machine ID Measurement was skipped because of an unmet condition check (ConditionSecurity=measured-uki).
[    6.106035] systemd[1]: Starting systemd-remount-fs.service - Remount Root and Kernel File Systems...
[    6.107113] systemd[1]: systemd-tpm2-setup-early.service - Early TPM SRK Setup was skipped because of an unmet condition check (ConditionSecurity=measured-uki).
[    6.129992] systemd[1]: Starting systemd-udev-load-credentials.service - Load udev Rules from Credentials...
[    6.169764] systemd[1]: Starting systemd-udev-trigger.service - Coldplug All udev Devices...
[    6.215220] systemd[1]: Mounted dev-hugepages.mount - Huge Pages File System.
[    6.233226] systemd-journald[256]: Collecting audit messages is disabled.
[    6.238860] systemd[1]: Mounted dev-mqueue.mount - POSIX Message Queue File System.
[    6.239894] systemd[1]: Mounted run-lock.mount - Legacy Locks Directory /run/lock.
[    6.241141] systemd[1]: Mounted sys-kernel-debug.mount - Kernel Debug File System.
[    6.255331] systemd[1]: Mounted sys-kernel-tracing.mount - Kernel Trace File System.
[    6.259510] EXT4-fs (vda1): re-mounted 12412ff1-8ede-4e90-bf78-c658fc1035c3 r/w.
[    6.266316] systemd[1]: Finished keyboard-setup.service - Set the console keyboard layout.
[    6.282831] systemd[1]: Finished kmod-static-nodes.service - Create List of Static Device Nodes.
[    6.290366] systemd[1]: [email protected]: Deactivated successfully.
[    6.293963] systemd[1]: Finished [email protected] - Load Kernel Module configfs.
[    6.295635] systemd[1]: [email protected]: Deactivated successfully.
[    6.296435] systemd[1]: Finished [email protected] - Load Kernel Module drm.
[    6.310454] systemd[1]: modprobe@efi_pstore.service: Deactivated successfully.
[    6.321453] systemd[1]: Finished modprobe@efi_pstore.service - Load Kernel Module efi_pstore.
[    6.323178] systemd[1]: [email protected]: Deactivated successfully.
[    6.323822] systemd[1]: Finished [email protected] - Load Kernel Module fuse.
[    6.325196] systemd[1]: Finished systemd-modules-load.service - Load Kernel Modules.
[    6.337485] systemd[1]: Finished systemd-remount-fs.service - Remount Root and Kernel File Systems.
[    6.345906] systemd[1]: Finished systemd-udev-load-credentials.service - Load udev Rules from Credentials.
[    6.362579] systemd[1]: Mounting sys-fs-fuse-connections.mount - FUSE Control File System...
[    6.386074] systemd[1]: Mounting sys-kernel-config.mount - Kernel Configuration File System...
[    6.421783] systemd[1]: Starting resize-root-fs.service - Resize root filesystem on first boot...
[    6.424004] systemd[1]: systemd-hwdb-update.service - Rebuild Hardware Database was skipped because of an unmet condition check (ConditionNeedsUpdate=/etc).
[    6.425927] systemd[1]: systemd-pstore.service - Platform Persistent Storage Archival was skipped because of an unmet condition check (ConditionDirectoryNotEmpty=/sys/fs/pstore).
[    6.451691] systemd[1]: Starting systemd-random-seed.service - Load/Save OS Random Seed...
[    6.485823] systemd[1]: Starting systemd-sysctl.service - Apply Kernel Variables...
[    6.569896] systemd[1]: Starting systemd-tmpfiles-setup-dev-early.service - Create Static Device Nodes in /dev gracefully...
[    6.574787] systemd[1]: systemd-tpm2-setup.service - TPM SRK Setup was skipped because of an unmet condition check (ConditionSecurity=measured-uki).
[    6.576939] systemd[1]: Started systemd-journald.service - Journal Service.
[    6.839003] systemd-journald[256]: Received client request to flush runtime journal.
[    7.185698] audit: type=1400 audit(1775835505.684:2): apparmor="STATUS" operation="profile_load" profile="unconfined" name="1password" pid=323 comm="apparmor_parser"
[    7.206660] audit: type=1400 audit(1775835505.704:3): apparmor="STATUS" operation="profile_load" profile="unconfined" name="Discord" pid=325 comm="apparmor_parser"
[    7.211519] audit: type=1400 audit(1775835505.712:4): apparmor="STATUS" operation="profile_load" profile="unconfined" name=4D6F6E676F444220436F6D70617373 pid=326 comm="apparmor_parser"
[    7.224448] audit: type=1400 audit(1775835505.724:5): apparmor="STATUS" operation="profile_load" profile="unconfined" name="QtWebEngineProcess" pid=327 comm="apparmor_parser"
[    7.269336] audit: type=1400 audit(1775835505.768:6): apparmor="STATUS" operation="profile_load" profile="unconfined" name="Xorg" pid=328 comm="apparmor_parser"
[    7.277398] audit: type=1400 audit(1775835505.776:7): apparmor="STATUS" operation="profile_load" profile="unconfined" name="balena-etcher" pid=330 comm="apparmor_parser"
[    7.294581] audit: type=1400 audit(1775835505.792:8): apparmor="STATUS" operation="profile_load" profile="unconfined" name="brave" pid=332 comm="apparmor_parser"
[    7.305533] audit: type=1400 audit(1775835505.804:9): apparmor="STATUS" operation="profile_load" profile="unconfined" name="buildah" pid=333 comm="apparmor_parser"
[    7.312215] audit: type=1400 audit(1775835505.812:10): apparmor="STATUS" operation="profile_load" profile="unconfined" name="busybox" pid=336 comm="apparmor_parser"
[    7.325042] audit: type=1400 audit(1775835505.824:11): apparmor="STATUS" operation="profile_load" profile="unconfined" name="cam" pid=337 comm="apparmor_parser"
[    7.728683] sr 1:0:0:0: Attached scsi generic sg0 type 5
[    7.991595] Adding 1048572k swap on /dev/vda2.  Priority:-2 extents:1 across:1048572k 
[    8.196886] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input4
[    8.242376] ACPI: button: Power Button [PWRF]
[    8.448815] input: PC Speaker as /devices/platform/pcspkr/input/input5
[    8.889507] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer
[    8.904546] cryptd: max_cpu_qlen set to 1000
[    8.931336] AES CTR mode by8 optimization enabled

** Model information
sys_vendor: Red Hat
product_name: KVM
product_version: RHEL 7.6.0 PC (i440FX + PIIX, 1996)
chassis_vendor: Red Hat
chassis_version: RHEL 7.6.0 PC (i440FX + PIIX, 1996)
bios_vendor: SeaBIOS
bios_version: 1.15.0-2.module_el8.6.0+2880+7d9e3703

** Configuration for modprobe:
blacklist arkfb
blacklist aty128fb
blacklist atyfb
blacklist radeonfb
blacklist cirrusfb
blacklist cyber2000fb
blacklist kyrofb
blacklist matroxfb_base
blacklist mb862xxfb
blacklist neofb
blacklist pm2fb
blacklist pm3fb
blacklist s3fb
blacklist savagefb
blacklist sisfb
blacklist tdfxfb
blacklist tridentfb
blacklist vt8623fb
blacklist microcode
options snd_pcsp index=-2
options cx88_alsa index=-2
options snd_atiixp_modem index=-2
options snd_intel8x0m index=-2
options snd_via82xx_modem index=-2
options bonding max_bonds=0
options dummy numdummies=0
options ifb numifbs=0
options net ifnames=0
options zswap enabled=1
options zswap compressor=lz4
options zswap zpool=zsmalloc

** Loaded modules:
nft_reject_inet
nf_reject_ipv4
nf_reject_ipv6
nft_reject
nf_tables
libcrc32c
intel_rapl_msr
intel_rapl_common
crct10dif_pclmul
ghash_clmulni_intel
sha512_ssse3
sha256_ssse3
sha1_ssse3
aesni_intel
gf128mul
crypto_simd
cryptd
rapl
pcspkr
virtio_balloon
button
joydev
evdev
sg
binfmt_misc
efi_pstore
configfs
nfnetlink
vsock_loopback
vmw_vsock_virtio_transport_common
vmw_vsock_vmci_transport
vsock
vmw_vmci
qemu_fw_cfg
ip_tables
x_tables
autofs4
ext4
crc16
mbcache
jbd2
crc32c_generic
zstd
sr_mod
cirrus
cdrom
drm_shmem_helper
ata_generic
drm_kms_helper
ata_piix
uhci_hcd
ehci_pci
libata
ehci_hcd
drm
usbcore
virtio_net
psmouse
scsi_mod
crc32_pclmul
crc32c_intel
net_failover
virtio_blk
i2c_piix4
failover
serio_raw
scsi_common
floppy
usb_common
i2c_smbus

** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation 440FX - 82441FX PMC [Natoma] [8086:1237] (rev 02)
	Subsystem: Red Hat, Inc. Qemu virtual machine [1af4:1100]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0

00:01.0 ISA bridge [0601]: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II] [8086:7000]
	Subsystem: Red Hat, Inc. Qemu virtual machine [1af4:1100]
	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

00:01.1 IDE interface [0101]: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II] [8086:7010] (prog-if 80 [ISA Compatibility mode-only controller, supports bus mastering])
	Subsystem: Red Hat, Inc. Qemu virtual machine [1af4:1100]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Region 0: I/O ports at 01f0 [size=8]
	Region 1: I/O ports at 03f4
	Region 2: I/O ports at 0170 [size=8]
	Region 3: I/O ports at 0374
	Region 4: I/O ports at c0a0 [size=16]
	Kernel driver in use: ata_piix
	Kernel modules: ata_piix, ata_generic

00:01.2 USB controller [0c03]: Intel Corporation 82371SB PIIX3 USB [Natoma/Triton II] [8086:7020] (rev 01) (prog-if 00 [UHCI])
	Subsystem: Red Hat, Inc. QEMU Virtual Machine [1af4:1100]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin D routed to IRQ 11
	Region 4: I/O ports at c040 [size=32]
	Kernel driver in use: uhci_hcd
	Kernel modules: uhci_hcd

00:01.3 Bridge [0680]: Intel Corporation 82371AB/EB/MB PIIX4 ACPI [8086:7113] (rev 03)
	Subsystem: Red Hat, Inc. Qemu virtual machine [1af4:1100]
	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Interrupt: pin A routed to IRQ 9
	Kernel driver in use: piix4_smbus
	Kernel modules: i2c_piix4

00:02.0 VGA compatible controller [0300]: Cirrus Logic GD 5446 [1013:00b8] (prog-if 00 [VGA controller])
	Subsystem: Red Hat, Inc. QEMU Virtual Machine [1af4:1100]
	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Region 0: Memory at fc000000 (32-bit, prefetchable) [size=32M]
	Region 1: Memory at febd0000 (32-bit, non-prefetchable) [size=4K]
	Expansion ROM at 000c0000 [disabled] [size=128K]
	Kernel driver in use: cirrus
	Kernel modules: cirrusfb, cirrus

00:03.0 Ethernet controller [0200]: Red Hat, Inc. Virtio network device [1af4:1000]
	Subsystem: Red Hat, Inc. Device [1af4:0001]
	Physical Slot: 3
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 10
	Region 0: I/O ports at c060 [size=32]
	Region 1: Memory at febd1000 (32-bit, non-prefetchable) [size=4K]
	Region 4: Memory at fe000000 (64-bit, prefetchable) [size=16K]
	Expansion ROM at feb80000 [disabled] [size=256K]
	Capabilities: <access denied>
	Kernel driver in use: virtio-pci

00:04.0 SCSI storage controller [0100]: Red Hat, Inc. Virtio block device [1af4:1001]
	Subsystem: Red Hat, Inc. Device [1af4:0002]
	Physical Slot: 4
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 11
	Region 0: I/O ports at c000 [size=64]
	Region 1: Memory at febd2000 (32-bit, non-prefetchable) [size=4K]
	Region 4: Memory at fe004000 (64-bit, prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: virtio-pci

00:05.0 Unclassified device [00ff]: Red Hat, Inc. Virtio memory balloon [1af4:1002]
	Subsystem: Red Hat, Inc. Device [1af4:0005]
	Physical Slot: 5
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 10
	Region 0: I/O ports at c080 [size=32]
	Region 4: Memory at fe008000 (64-bit, prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: virtio-pci


** USB devices:
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub


-- System Information:
Debian Release: 13.4
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 6.12.74+deb13+1-amd64 (SMP w/1 CPU thread; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages linux-image-6.12.74+deb13+1-amd64 depends on:
ii  initramfs-tools [linux-initramfs-tool]  0.148.3
ii  kmod                                    34.2-2
ii  linux-base                              4.12.1

Versions of packages linux-image-6.12.74+deb13+1-amd64 recommends:
ii  apparmor  4.1.0-1

Versions of packages linux-image-6.12.74+deb13+1-amd64 suggests:
pn  debian-kernel-handbook  <none>
pn  firmware-linux-free     <none>
ii  grub-pc                 2.12-9+deb13u1
pn  linux-doc-6.12          <none>

Versions of packages linux-image-6.12.74+deb13+1-amd64 is related to:
pn  firmware-amd-graphics      <none>
pn  firmware-atheros           <none>
pn  firmware-bnx2              <none>
pn  firmware-bnx2x             <none>
pn  firmware-brcm80211         <none>
pn  firmware-cavium            <none>
pn  firmware-cirrus            <none>
pn  firmware-intel-graphics    <none>
pn  firmware-intel-misc        <none>
pn  firmware-intel-sound       <none>
pn  firmware-ipw2x00           <none>
pn  firmware-ivtv              <none>
pn  firmware-iwlwifi           <none>
pn  firmware-libertas          <none>
pn  firmware-marvell-prestera  <none>
pn  firmware-mediatek          <none>
pn  firmware-misc-nonfree      <none>
pn  firmware-myricom           <none>
pn  firmware-netronome         <none>
pn  firmware-netxen            <none>
pn  firmware-nvidia-graphics   <none>
pn  firmware-qcom-soc          <none>
pn  firmware-qlogic            <none>
pn  firmware-realtek           <none>
pn  firmware-samsung           <none>
pn  firmware-siano             <none>
pn  firmware-ti-connectivity   <none>
pn  xen-hypervisor             <none>

-- no debconf information