[ 0.000000] hash-mmu: Page sizes from device-tree: [ 0.000000] hash-mmu: base_shift=12: shift=12, sllp=0x0000, avpnm=0x00000000, tlbiel=1, penc=0 [ 0.000000] hash-mmu: base_shift=12: shift=16, sllp=0x0000, avpnm=0x00000000, tlbiel=1, penc=7 [ 0.000000] hash-mmu: base_shift=12: shift=24, sllp=0x0000, avpnm=0x00000000, tlbiel=1, penc=56 [ 0.000000] hash-mmu: base_shift=16: shift=16, sllp=0x0110, avpnm=0x00000000, tlbiel=1, penc=1 [ 0.000000] hash-mmu: base_shift=16: shift=24, sllp=0x0110, avpnm=0x00000000, tlbiel=1, penc=8 [ 0.000000] hash-mmu: base_shift=24: shift=24, sllp=0x0100, avpnm=0x00000001, tlbiel=0, penc=0 [ 0.000000] hash-mmu: base_shift=34: shift=34, sllp=0x0120, avpnm=0x000007ff, tlbiel=0, penc=3 [ 0.000000] Page orders: linear mapping = 24, virtual = 16, io = 16, vmemmap = 24 [ 0.000000] Using 1TB segments [ 0.000000] hash-mmu: Initializing hash mmu with SLB [ 0.000000] Found initrd at 0xc000000003480000:0xc000000004e5621f [ 0.000000] Using pSeries machine description [ 0.000000] printk: bootconsole [udbg0] enabled [ 0.000000] Partition configured for 16 cpus. [ 0.000000] CPU maps initialized for 8 threads per core [ 0.000000] (thread shift is 3) [ 0.000000] Allocated 4736 bytes for 16 pacas [ 0.000000] ----------------------------------------------------- [ 0.000000] phys_mem_size = 0x680000000 [ 0.000000] dcache_bsize = 0x80 [ 0.000000] icache_bsize = 0x80 [ 0.000000] cpu_features = 0x0001c07f8f5f91a7 [ 0.000000] possible = 0x0003fbffcf5fb1a7 [ 0.000000] always = 0x00000003800081a1 [ 0.000000] cpu_user_features = 0xdc0065c2 0xefe00000 [ 0.000000] mmu_features = 0x7c006001 [ 0.000000] firmware_features = 0x00000097c45bfc57 [ 0.000000] vmalloc start = 0xc008000000000000 [ 0.000000] IO start = 0xc00a000000000000 [ 0.000000] vmemmap start = 0xc00c000000000000 [ 0.000000] hash-mmu: ppc64_pft_size = 0x1c [ 0.000000] hash-mmu: htab_hash_mask = 0x1fffff [ 0.000000] ----------------------------------------------------- [ 0.000000] numa: NODE_DATA [mem 0x67ff60900-0x67ff67fff] [ 0.000000] rfi-flush: fallback displacement flush available [ 0.000000] rfi-flush: mttrig type flush available [ 0.000000] rfi-flush: patched 8 locations (mttrig type flush) [ 0.000000] link-stack-flush: software flush enabled. [ 0.000000] count-cache-flush: software flush disabled. [ 0.000000] stf-barrier: eieio barrier available [ 0.000000] stf-barrier: patched 59 entry locations (eieio barrier) [ 0.000000] stf-barrier: patched 8 exit locations (eieio barrier) [ 0.000000] lpar: H_BLOCK_REMOVE supports base psize:0 psize:0 block size:8 [ 0.000000] lpar: H_BLOCK_REMOVE supports base psize:0 psize:2 block size:8 [ 0.000000] lpar: H_BLOCK_REMOVE supports base psize:0 psize:10 block size:8 [ 0.000000] lpar: H_BLOCK_REMOVE supports base psize:2 psize:2 block size:8 [ 0.000000] lpar: H_BLOCK_REMOVE supports base psize:2 psize:10 block size:8 [ 0.000000] PPC64 nvram contains 15360 bytes [ 0.000000] barrier-nospec: using ORI speculation barrier [ 0.000000] barrier-nospec: patched 476 locations [ 0.000000] Top of RAM: 0x680000000, Total RAM: 0x680000000 [ 0.000000] Memory hole size: 0MB [ 0.000000] Zone ranges: [ 0.000000] Normal [mem 0x0000000000000000-0x000000067fffffff] [ 0.000000] Device empty [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000000000-0x000000067fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x000000067fffffff] [ 0.000000] On node 0 totalpages: 425984 [ 0.000000] Normal zone: 416 pages used for memmap [ 0.000000] Normal zone: 0 pages reserved [ 0.000000] Normal zone: 425984 pages, LIFO batch:3 [ 0.000000] percpu: Embedded 11 pages/cpu s624152 r0 d96744 u1048576 [ 0.000000] pcpu-alloc: s624152 r0 d96744 u1048576 alloc=1*1048576 [ 0.000000] pcpu-alloc: [0] 00 [0] 01 [0] 02 [0] 03 [0] 04 [0] 05 [0] 06 [0] 07 [ 0.000000] pcpu-alloc: [0] 08 [0] 09 [0] 10 [0] 11 [0] 12 [0] 13 [0] 14 [0] 15 [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 425568 [ 0.000000] Policy zone: Normal [ 0.000000] Kernel command line: root=UUID=76dd91ea-e63c-4261-aef7-294fbb2e46d0 xmon=on [ 0.000000] Dentry cache hash table entries: 4194304 (order: 9, 33554432 bytes, linear) [ 0.000000] Inode-cache hash table entries: 2097152 (order: 8, 16777216 bytes, linear) [ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off [ 0.000000] SLUB: HWalign=128, Order=0-3, MinObjects=0, CPUs=16, Nodes=32 [ 0.000000] ftrace: allocating 30972 entries in 12 pages [ 0.000000] ftrace: allocated 12 pages with 2 groups [ 0.000000] rcu: Hierarchical RCU implementation. [ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=2048 to nr_cpu_ids=16. [ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=16 [ 0.000000] NR_IRQS: 512, nr_irqs: 512, preallocated irqs: 16 [ 0.000000] pic: no ISA interrupt controller [ 0.000000] rcu: Offload RCU callbacks from CPUs: (none). [ 0.000000] random: get_random_u64 called from start_kernel+0x408/0x660 with crng_init=0 [ 0.000000] time_init: decrementer frequency = 512.000000 MHz [ 0.000000] time_init: processor frequency = 3300.000000 MHz [ 0.000003] time_init: 56 bit decrementer (max: 7fffffffffffff) [ 0.000051] clocksource: timebase: mask: 0xffffffffffffffff max_cycles: 0x761537d007, max_idle_ns: 440795202126 ns [ 0.000133] clocksource: timebase mult[1f40000] shift[24] registered [ 0.000188] clockevent: decrementer mult[83126f] shift[24] cpu[0] [ 0.000248] Console: colour dummy device 80x25 [ 0.000287] printk: console [hvc0] enabled [ 0.000323] printk: bootconsole [udbg0] disabled [ 0.000395] pid_max: default: 32768 minimum: 301 [ 0.000546] Mount-cache hash table entries: 65536 (order: 3, 524288 bytes, linear) [ 0.000591] Mountpoint-cache hash table entries: 65536 (order: 3, 524288 bytes, linear) [ 0.001512] EEH: pSeries platform initialized [ 0.001521] POWER9 performance monitor hardware support registered [ 0.001563] rcu: Hierarchical SRCU implementation. [ 0.002469] smp: Bringing up secondary CPUs ... [ 0.006739] smp: Brought up 1 node, 16 CPUs [ 0.006746] numa: Node 0 CPUs: 0-15 [ 0.006751] Using small cores at SMT level [ 0.006754] Using shared cache scheduler topology [ 0.007468] devtmpfs: initialized [ 0.010568] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.010578] futex hash table entries: 4096 (order: 3, 524288 bytes, linear) [ 0.010786] thermal_sys: Registered thermal governor 'fair_share' [ 0.010787] thermal_sys: Registered thermal governor 'step_wise' [ 0.010935] NET: Registered protocol family 16 [ 0.011123] audit: initializing netlink subsys (disabled) [ 0.011215] audit: type=2000 audit(1585034533.010:1): state=initialized audit_enabled=0 res=1 [ 0.011445] cpuidle: using governor menu [ 0.011511] RTAS daemon started [ 0.011650] pstore: Registered nvram as persistent store backend [ 0.016203] PCI: Probing PCI hardware [ 0.016210] EEH: No capable adapters found: recovery disabled. [ 0.016214] PCI: Probing PCI hardware done [ 0.016349] pseries-rng: Registering arch random hook. [ 0.018764] HugeTLB registered 16.0 MiB page size, pre-allocated 0 pages [ 0.018771] HugeTLB registered 16.0 GiB page size, pre-allocated 0 pages [ 0.387056] iommu: Default domain type: Translated [ 0.387111] vgaarb: loaded [ 0.387251] SCSI subsystem initialized [ 0.387293] usbcore: registered new interface driver usbfs [ 0.387305] usbcore: registered new interface driver hub [ 0.387391] usbcore: registered new device driver usb [ 0.387547] EDAC MC: Ver: 3.0.0 [ 0.387955] clocksource: Switched to clocksource timebase [ 0.405369] VFS: Disk quotas dquot_6.6.0 [ 0.405398] VFS: Dquot-cache hash table entries: 8192 (order 0, 65536 bytes) [ 0.407912] NET: Registered protocol family 2 [ 0.408102] tcp_listen_portaddr_hash hash table entries: 16384 (order: 2, 262144 bytes, linear) [ 0.408144] TCP established hash table entries: 262144 (order: 5, 2097152 bytes, linear) [ 0.408680] TCP bind hash table entries: 65536 (order: 4, 1048576 bytes, linear) [ 0.408818] TCP: Hash tables configured (established 262144 bind 65536) [ 0.408854] UDP hash table entries: 16384 (order: 3, 524288 bytes, linear) [ 0.408927] UDP-Lite hash table entries: 16384 (order: 3, 524288 bytes, linear) [ 0.409046] NET: Registered protocol family 1 [ 0.409055] PCI: CLS 0 bytes, default 128 [ 0.409094] Trying to unpack rootfs image as initramfs... [ 1.016622] Freeing initrd memory: 26432K [ 1.017567] IOMMU table initialized, virtual merging enabled [ 1.038046] hv-24x7: read 1530 catalog entries, created 537 event attrs (0 failures), 275 descs [ 1.039396] workingset: timestamp_bits=38 max_order=19 bucket_order=0 [ 1.040992] zbud: loaded [ 1.054410] NET: Registered protocol family 38 [ 1.054417] Key type asymmetric registered [ 1.054422] Asymmetric key parser 'x509' registered [ 1.054439] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 247) [ 1.054551] io scheduler mq-deadline registered [ 1.054556] io scheduler kyber registered [ 1.054891] atomic64_test: passed [ 1.054942] PowerPC PowerNV PCI Hotplug Driver version: 0.1 [ 1.055335] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 1.055612] Non-volatile memory driver v1.3 [ 1.055641] Linux agpgart interface v0.103 [ 6.568217] tpm_ibmvtpm 30000003: CRQ initialization completed [ 6.568949] rdac: device handler registered [ 6.569047] hp_sw: device handler registered [ 6.569052] emc: device handler registered [ 6.569143] alua: device handler registered [ 6.569268] libphy: Fixed MDIO Bus: probed [ 6.569326] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 6.569346] ehci-pci: EHCI PCI platform driver [ 6.569357] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 6.569369] ohci-pci: OHCI PCI platform driver [ 6.569380] uhci_hcd: USB Universal Host Controller Interface driver [ 6.569426] usbcore: registered new interface driver usbserial_generic [ 6.569435] usbserial: USB Serial support registered for generic [ 6.569510] mousedev: PS/2 mouse device common for all mice [ 6.569630] rtc-generic rtc-generic: registered as rtc0 [ 6.569846] pseries_idle_driver registered [ 6.569872] nx_compress_pseries ibm,compression-v1: nx842_OF_upd: max_sync_size new:65536 old:0 [ 6.569879] nx_compress_pseries ibm,compression-v1: nx842_OF_upd: max_sync_sg new:510 old:0 [ 6.569885] nx_compress_pseries ibm,compression-v1: nx842_OF_upd: max_sg_len new:4080 old:0 [ 6.569960] alg: No test for 842 (842-nx) [ 6.571650] hid: raw HID events driver (C) Jiri Kosina [ 6.571777] usbcore: registered new interface driver usbhid [ 6.571781] usbhid: USB HID core driver [ 6.571833] drop_monitor: Initializing network drop monitor service [ 6.571927] Initializing XFRM netlink socket [ 6.572079] NET: Registered protocol family 10 [ 6.572410] Segment Routing with IPv6 [ 6.572435] NET: Registered protocol family 17 [ 6.572733] Running MSI bitmap self-tests ... [ 6.572880] registered taskstats version 1 [ 6.572921] zswap: loaded using pool lzo/zbud [ 6.573076] pstore: Using crash dump compression: deflate [ 6.578587] Key type big_key registered [ 6.578800] rtc-generic rtc-generic: setting system clock to 2020-03-24T07:22:20 UTC (1585034540) [ 6.580918] Freeing unused kernel memory: 5248K [ 6.580923] Kernel memory protection not selected by kernel config. [ 6.580927] Run /init as init process [ 6.580931] with arguments: [ 6.580932] /init [ 6.580933] with environment: [ 6.580934] HOME=/ [ 6.580935] TERM=linux [ 6.593542] systemd[1]: Detected architecture ppc64-le. [ 6.593550] systemd[1]: Running in initial RAM disk. [ 6.638547] systemd[1]: Set hostname to . [ 6.711118] random: systemd: uninitialized urandom read (16 bytes read) [ 6.711146] systemd[1]: Reached target Swap. [ 6.711432] random: systemd: uninitialized urandom read (16 bytes read) [ 6.711550] systemd[1]: Listening on Journal Socket (/dev/log). [ 6.711723] random: systemd: uninitialized urandom read (16 bytes read) [ 6.711820] systemd[1]: Listening on udev Control Socket. [ 6.712087] systemd[1]: Listening on Journal Socket. [ 6.714496] systemd[1]: Starting Apply Kernel Variables... [ 6.715589] systemd[1]: Starting Create list of required static device nodes for the current kernel... [ 7.438476] synth uevent: /devices/vio: failed to send uevent [ 7.438491] vio vio: uevent: failed to send synthetic uevent [ 7.438643] synth uevent: /devices/vio/4000: failed to send uevent [ 7.438651] vio 4000: uevent: failed to send synthetic uevent [ 7.438678] synth uevent: /devices/vio/4001: failed to send uevent [ 7.438686] vio 4001: uevent: failed to send synthetic uevent [ 7.438713] synth uevent: /devices/vio/4002: failed to send uevent [ 7.438721] vio 4002: uevent: failed to send synthetic uevent [ 7.438748] synth uevent: /devices/vio/4004: failed to send uevent [ 7.438756] vio 4004: uevent: failed to send synthetic uevent [ 7.478731] random: fast init done [ 7.530100] ibmveth: IBM Power Virtual Ethernet Driver 1.06 [ 7.535622] ibmvscsi 3000006c: SRP_VERSION: 16.a [ 7.565186] ibmveth 30000002 env2: renamed from eth0 [ 11.368642] random: crng init done [ 11.368653] random: 7 urandom warning(s) missed due to ratelimiting [ 14.608012] ibmvscsi 3000006c: SRP_VERSION: 16.a [ 14.608098] ibmvscsi 3000006c: Maximum ID: 64 Maximum LUN: 32 Maximum Channel: 3 [ 14.608103] scsi host0: IBM POWER Virtual SCSI Adapter 1.5.9 [ 14.608254] ibmvscsi 3000006c: partner initialization complete [ 14.608293] ibmvscsi 3000006c: host srp version: 16.a, host partition ltczz304-vios1 (100), OS 3, max io 262144 [ 14.608344] ibmvscsi 3000006c: Client reserve enabled [ 14.608351] ibmvscsi 3000006c: sent SRP login [ 14.608379] ibmvscsi 3000006c: SRP_LOGIN succeeded [ 14.638178] scsi 0:0:1:0: Direct-Access AIX VDASD 0001 PQ: 0 ANSI: 3 [ 14.658691] sd 0:0:1:0: [sda] 26214400 4096-byte logical blocks: (107 GB/100 GiB) [ 14.658726] sd 0:0:1:0: [sda] Write Protect is off [ 14.658730] sd 0:0:1:0: [sda] Mode Sense: 17 00 00 08 [ 14.658764] sd 0:0:1:0: [sda] Cache data unavailable [ 14.658768] sd 0:0:1:0: [sda] Assuming drive cache: write through [ 14.739891] sda: sda1 sda2 sda3 sda4 < sda5 > [ 14.740458] sd 0:0:1:0: [sda] Attached SCSI disk [ 15.583164] EXT4-fs (sda3): mounted filesystem with ordered data mode. Opts: (null) [ 16.061190] systemd-journald[272]: Received SIGTERM from PID 1 (systemd). [ 16.123249] printk: systemd: 15 output lines suppressed due to ratelimiting [ 16.693101] systemd[1]: Detected architecture ppc64-le. [ 16.700101] systemd[1]: Set hostname to . [ 17.839826] systemd[1]: Stopped Switch Root. [ 17.840062] systemd[1]: systemd-journald.service: Service has no hold-off time (RestartSec=0), scheduling restart. [ 17.840146] systemd[1]: systemd-journald.service: Scheduled restart job, restart counter is at 1. [ 17.840158] systemd[1]: Stopped Journal Service. [ 17.840816] systemd[1]: Starting Journal Service... [ 17.841061] systemd[1]: Created slice User and Session Slice. [ 17.841166] systemd[1]: Listening on Device-mapper event daemon FIFOs. [ 17.985589] synth uevent: /devices/vio: failed to send uevent [ 17.985597] vio vio: uevent: failed to send synthetic uevent [ 17.985787] synth uevent: /devices/vio/4000: failed to send uevent [ 17.985790] vio 4000: uevent: failed to send synthetic uevent [ 17.985801] synth uevent: /devices/vio/4001: failed to send uevent [ 17.985805] vio 4001: uevent: failed to send synthetic uevent [ 17.985815] synth uevent: /devices/vio/4002: failed to send uevent [ 17.985818] vio 4002: uevent: failed to send synthetic uevent [ 17.985829] synth uevent: /devices/vio/4004: failed to send uevent [ 17.985832] vio 4004: uevent: failed to send synthetic uevent [ 18.078677] EXT4-fs (sda3): re-mounted. Opts: (null) [ 18.128049] Adding 16461760k swap on /dev/sda5. Priority:-2 extents:1 across:16461760k FS [ 18.147757] systemd-journald[775]: Received request to flush runtime journal from PID 1 [ 18.945768] pmem0s: detected capacity change from 0 to 10725863424 [ 18.946907] pseries_rng: Registering IBM pSeries RNG driver [ 18.989022] sd 0:0:1:0: Attached scsi generic sg0 type 0 [ 19.292667] ibmveth 30000002 net0: renamed from env2 [ 19.621176] EXT4-fs (sda2): mounted filesystem with ordered data mode. Opts: (null) [ 20.054607] RPC: Registered named UNIX socket transport module. [ 20.054616] RPC: Registered udp transport module. [ 20.054618] RPC: Registered tcp transport module. [ 20.054621] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 30.851796] device-mapper: uevent: version 1.0.3 [ 30.851868] device-mapper: ioctl: 4.42.0-ioctl (2020-02-27) initialised: dm-devel@redhat.com [ 98.681908] pmem0: detected capacity change from 0 to 10737418240 [ 155.474713] memmap_init_zone_device initialised 163584 pages in 0ms [ 155.474925] pmem0: detected capacity change from 0 to 10720641024 [ 155.683303] BUG: Kernel NULL pointer dereference on read at 0x00000000 [ 155.683312] Faulting instruction address: 0xc000000000c3447c cpu 0x2: Vector: 300 (Data Access) at [c000000674e1b630] pc: c000000000c3447c: vmemmap_populated+0x98/0xc0 lr: c000000000088354: vmemmap_free+0x144/0x320 sp: c000000674e1b8c0 msr: 800000000280b033 dar: 0 dsisr: 40000000 current = 0xc00000060fdf6000 paca = 0xc00000001ec7dc00 irqmask: 0x03 irq_happened: 0x01 pid = 2302, comm = lt-ndctl Linux version 5.6.0-rc7-autotest (root@ltczz304-lp8.aus.stglabs.ibm.com) (gcc version 8.3.1 20190507 (Red Hat 8.3.1-4) (GCC)) #1 SMP Mon Mar 23 15:43:19 EDT 2020 enter ? for help [link register ] c000000000088354 vmemmap_free+0x144/0x320 [c000000674e1b8c0] c000000674e1b960 (unreliable) [c000000674e1b980] c0000000003c5820 section_deactivate+0x220/0x240 [c000000674e1ba30] c0000000003dc1d8 __remove_pages+0x118/0x170 [c000000674e1ba80] c000000000086e5c arch_remove_memory+0x3c/0x150 [c000000674e1bb00] c00000000041a3bc memunmap_pages+0x1cc/0x2f0 [c000000674e1bb80] c0000000007d6d00 devm_action_release+0x30/0x50 [c000000674e1bba0] c0000000007d7de8 release_nodes+0x2f8/0x3e0 [c000000674e1bc50] c0000000007d0b38 device_release_driver_internal+0x168/0x270 [c000000674e1bc90] c0000000007ccf50 unbind_store+0x130/0x170 [c000000674e1bcd0] c0000000007cc0b4 drv_attr_store+0x44/0x60 [c000000674e1bcf0] c00000000051fdb8 sysfs_kf_write+0x68/0x80 [c000000674e1bd10] c00000000051f200 kernfs_fop_write+0x100/0x290 [c000000674e1bd60] c00000000042037c __vfs_write+0x3c/0x70 [c000000674e1bd80] c00000000042404c vfs_write+0xcc/0x240 [c000000674e1bdd0] c00000000042442c ksys_write+0x7c/0x140 [c000000674e1be20] c00000000000b278 system_call+0x5c/0x68 --- Exception: c00 (System Call) at 00007fff9fa280f4 SP (7fffe50710f0) is in userspace 2:mon>