[    0.511617] Linux version 6.18.7 (br-user@runner-pdwm2rams-project-3290221-concurrent-3) (s390x-linux-gcc.br_real (toolchains.bootlin.com 2026.08-1) 15.3.0, GNU ld (GNU Binutils) 2.45.1) #1 SMP Sun Sep  6 05:19:00 UTC 2026

[    0.512369] setup: Linux is running under KVM in 64-bit mode

[    0.512585] boot: KASLR disabled: CPU has no PRNG

[    0.512619] boot: KASLR disabled: CPU has no PRNG

[    0.512633] boot: KASLR disabled: CPU has no PRNG

[    0.553603] setup: The maximum memory size is 4096MB

[    0.554010] setup: Relocating AMODE31 section of size 0x00003000

[    0.555973] cpu: 2 configured CPUs, 0 standby CPUs

[    0.599039] Write protected kernel read-only data: 21368k

[    0.605439] Zone ranges:

[    0.605462]   DMA      [mem 0x0000000000000000-0x000000007fffffff]

[    0.605901]   Normal   [mem 0x0000000080000000-0x00000000ffffffff]

[    0.605933]   Device   empty

[    0.605962] Movable zone start for each node

[    0.605988] Early memory node ranges

[    0.606011]   node   0: [mem 0x0000000000000000-0x00000000ffffffff]

[    0.606328] Initmem setup node 0 [mem 0x0000000000000000-0x00000000ffffffff]

[    0.710645] percpu: Embedded 33 pages/cpu s96000 r8192 d30976 u135168

[    0.712353] Kernel command line: rootwait root=/dev/vda net.ifnames=0 biosdevname=0

[    0.713104] Unknown kernel command line parameters "biosdevname=0", will be passed to user space.

[    0.713667] random: crng init done

[    0.713792] printk: log buffer data + meta data: 131072 + 458752 = 589824 bytes

[    0.714915] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes, linear)

[    0.715562] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes, linear)

[    0.716805] Fallback order for Node 0: 0 

[    0.717052] Built 1 zonelists, mobility grouping on.  Total pages: 1048576

[    0.717076] Policy zone: Normal

[    0.717259] mem auto-init: stack:all(zero), heap alloc:off, heap free:off

[    0.740538] SLUB: HWalign=256, Order=0-3, MinObjects=0, CPUs=2, Nodes=1

[    0.838821] ftrace: allocating 53698 entries in 210 pages

[    0.839033] ftrace: allocated 210 pages with 4 groups

[    0.847186] rcu: Hierarchical RCU implementation.

[    0.847206] rcu: 	RCU event tracing is enabled.

[    0.847230] rcu: 	RCU restricting CPUs from NR_CPUS=512 to nr_cpu_ids=2.

[    0.847347] 	Rude variant of Tasks RCU enabled.

[    0.847360] 	Tracing variant of Tasks RCU enabled.

[    0.847436] rcu: RCU calculated value of scheduler-enlistment delay is 100 jiffies.

[    0.847467] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2

[    0.848536] RCU Tasks Rude: Setting shift to 1 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=2.

[    0.848573] RCU Tasks Trace: Setting shift to 1 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=2.

[    0.913043] NR_IRQS: 3, nr_irqs: 3, preallocated irqs: 3

[    0.915341] rcu: srcu_init: Setting srcu_struct sizes based on contention.

[    0.916555] clocksource: tod: mask: 0xffffffffffffffff max_cycles: 0x3b0a9be803b, max_idle_ns: 440795202126 ns

[    0.924892] Console: colour dummy device 80x25

[    0.928380] printk: legacy console [ttysclp0] enabled

[    0.931127] pid_max: default: 32768 minimum: 301

[    0.932953] LSM: initializing lsm=lockdown,capability,landlock,selinux,bpf,ima

[    0.933917] landlock: Up and running.

[    0.933976] SELinux:  Initializing.

[    0.936017] LSM support for eBPF active

[    0.937496] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes, linear)

[    0.937566] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes, linear)

[    0.977798] rcu: Hierarchical SRCU implementation.

[    0.977865] rcu: 	Max phase no-delay instances is 400.

[    0.980521] Timer migration: 1 hierarchy levels; 8 children per group; 1 crossnode level

[    0.985218] smp: Bringing up secondary CPUs ...

[    0.996550] smp: Brought up 1 node, 2 CPUs

[    1.058098] node 0 deferred pages initialised in 52ms

[    1.058755] Memory: 4081988K/4194304K available (15956K kernel code, 2380K rwdata, 5412K rodata, 1968K init, 896K bss, 107868K reserved, 0K cma-reserved)

[    1.071483] devtmpfs: initialized

[    1.086006] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns

[    1.086184] posixtimers hash table entries: 1024 (order: 2, 16384 bytes, linear)

[    1.086696] futex hash table entries: 512 (131072 bytes on 1 NUMA nodes, total 128 KiB, linear).

[    1.091780] NET: Registered PF_NETLINK/PF_ROUTE protocol family

[    1.094468] audit: initializing netlink subsys (disabled)

[    1.096515] audit: type=2000 audit(1788671982.051:1): state=initialized audit_enabled=0 res=1

[    1.098721] Spectre V2 mitigation: execute trampolines

[    1.132339] raid6: vx128x8  gen()  1305 MB/s

[    1.132432] raid6: using algorithm vx128x8 gen() 1305 MB/s

[    1.149340] raid6: .... xor() 692 MB/s, rmw enabled

[    1.149422] raid6: using s390xc recovery algorithm

[    1.151748] iommu: Default domain type: Translated

[    1.151816] iommu: DMA domain TLB invalidation policy: lazy mode

[    1.155833] SCSI subsystem initialized

[    1.398643] VFS: Disk quotas dquot_6.6.0

[    1.398826] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)

[    1.404535] hugetlbfs: disabling because there are no supported hugepage sizes

[    1.451341] NET: Registered PF_INET protocol family

[    1.452661] IP idents hash table entries: 65536 (order: 7, 524288 bytes, linear)

[    1.465164] tcp_listen_portaddr_hash hash table entries: 2048 (order: 3, 32768 bytes, linear)

[    1.465382] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear)

[    1.465495] TCP established hash table entries: 32768 (order: 6, 262144 bytes, linear)

[    1.465852] TCP bind hash table entries: 32768 (order: 8, 1048576 bytes, linear)

[    1.466404] TCP: Hash tables configured (established 32768 bind 32768)

[    1.467969] MPTCP token hash table entries: 4096 (order: 5, 98304 bytes, linear)

[    1.468417] UDP hash table entries: 2048 (order: 5, 131072 bytes, linear)

[    1.468832] UDP-Lite hash table entries: 2048 (order: 5, 131072 bytes, linear)

[    1.470555] NET: Registered PF_UNIX/PF_LOCAL protocol family

[    1.470950] NET: Registered PF_XDP protocol family

[    1.471314] PCI: CLS 0 bytes, default 256

[    1.476725] Key type cert_store_key registered

[    1.481814] hypfs: The hardware system does not support hypfs

[    1.940492] Initialise system trusted keyrings

[    1.941418] Key type blacklist registered

[    1.943017] workingset: timestamp_bits=45 max_order=20 bucket_order=0

[    1.946579] fuse: init (API version 7.45)

[    1.948136] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled

[    1.958081] integrity: Platform Keyring initialized

[    2.112364] xor: automatically using best checksumming function   xc        

[    2.112475] Key type asymmetric registered

[    2.112550] Asymmetric key parser 'x509' registered

[    2.112924] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251)

[    2.114207] io scheduler mq-deadline registered

[    2.114423] io scheduler kyber registered

[    2.114665] io scheduler bfq registered

[    2.123789] atomic64_test: passed

[    2.125056] hvc_iucv: The z/VM IUCV HVC device driver cannot be used without z/VM

[    2.158958] brd: module loaded

[    2.160944] zram: Added device: zram0

[    2.161974] device-mapper: core: CONFIG_IMA_DISABLE_HTABLE is disabled. Duplicate IMA measurements will not be recorded in the IMA log.

[    2.162107] device-mapper: uevent: version 1.0.3

[    2.163127] device-mapper: ioctl: 4.50.0-ioctl (2025-04-28) initialised: dm-devel@lists.linux.dev

[    2.164703] cio: Channel measurement facility initialized using format extended (mode autodetected)

[    2.167560] Discipline DIAG cannot be used without z/VM

[    2.171826] ap: The hardware system does not support AP instructions

[    2.171888] qeth: loading core functions

[    2.172822] qeth: register layer 2 discipline

[    2.172867] qeth: register layer 3 discipline

[    2.174977] NET: Registered PF_INET6 protocol family

[    2.179423] virtio_blk virtio0: 1/0/0 default/read/poll queues

[    2.185140] Segment Routing with IPv6

[    2.185205] RPL Segment Routing with IPv6

[    2.185458] In-situ OAM (IOAM) with IPv6

[    2.185808] virtio_blk virtio0: [vda] 245760 512-byte logical blocks (126 MB/120 MiB)

[    2.186129] NET: Registered PF_PACKET protocol family

[    2.186751] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.

[    2.188816] Key type dns_resolver registered

[    2.209764] registered taskstats version 1

[    2.210853] Loading compiled-in X.509 certificates

[    2.336086] Loaded X.509 cert 'Build time autogenerated kernel key: 76e4f5a2a6703d4c91579fac628348f4fdcdfbe9'

[    2.381042] Demotion targets for Node 0: null

[    2.383959] Key type .fscrypt registered

[    2.384011] Key type fscrypt-provisioning registered

[    2.389426] Btrfs loaded, zoned=no, fsverity=yes

[    2.390424] Key type big_key registered

[    2.390861] ima: No TPM chip found, activating TPM-bypass!

[    2.391011] ima: Allocated hash algorithm: sha256

[    2.395670] ima: No architecture policies found

[    2.448459] check access for rdinit=/init failed: -2, ignoring

[    2.448577] md: Waiting for all devices to be available before autodetect

[    2.448604] md: If you don't use raid, use raid=noautodetect

[    2.448642] md: Autodetecting RAID arrays.

[    2.448693] md: autorun ...

[    2.448725] md: ... autorun DONE.

[    2.456476] EXT4-fs (vda): mounting ext2 file system using the ext4 subsystem

[    2.466928] EXT4-fs (vda): mounted filesystem 4f420f6d-211c-4835-a033-fc2735ec1859 ro without journal. Quota mode: none.

[    2.467435] VFS: Mounted root (ext2 filesystem) readonly on device 253:0.

[    2.470022] devtmpfs: mounted

[    2.482415] Freeing unused kernel image (initmem) memory: 1968K

[    2.483365] Write protected read-only-after-init data: 188k

[    3.030713] Checked W+X mappings: passed, no unexpected W+X pages found

[    3.030975] Run /sbin/init as init process

[    3.146429] EXT4-fs (vda): re-mounted 4f420f6d-211c-4835-a033-fc2735ec1859 r/w.

Saving 256 bits of creditable seed for next boot

Starting syslogd: OK

Starting klogd: OK

Running sysctl: OK

Starting udevd: OK

[    3.638091] udevd[141]: starting version 3.2.14

[    3.785618] udevd[141]: starting eudev-3.2.14

[    4.067457] VFIO - User Level meta-driver version: 0.3

Starting network: udhcpc: started, v1.38.0

udhcpc: broadcasting discover

udhcpc: broadcasting select for 10.0.2.15, server 10.0.2.2

udhcpc: lease of 10.0.2.15 obtained from 10.0.2.2, lease time 86400

deleting routers

adding dns 10.0.2.3

OK

Starting crond: OK

Starting tests

TODO: add some more tests

Ending tests




Welcome to Buildroot


buildroot login: root
root

# poweroff
poweroff

# 

# This is the toolchain test suite

Usage: /etc/init.d/S90tests start

Stopping crond: stopped /usr/sbin/crond (pid 197)

OK

Stopping network: OK

Stopping udevd: OK

Stopping klogd: stopped /sbin/klogd (pid 129)

OK

Stopping syslogd: stopped /sbin/syslogd (pid 125)

OK

Seeding 256 bits and crediting

Saving 256 bits of creditable seed for next boot

umount: devtmpfs busy - remounted read-only

[    9.024147] EXT4-fs (vda): re-mounted 4f420f6d-211c-4835-a033-fc2735ec1859 ro.


The system is going down NOW!


Sent SIGTERM to all processes


Sent SIGKILL to all processes


Requesting system poweroff