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Subject[POWERPC][next-20190603] Boot failure : Kernel BUG at mm/vmalloc.c:470
Date
While booting linux-next [next-20190603] on a POWER9 LPAR following
BUG is encountered and the boot fails.

If I revert the following 2 patches I no longer see this BUG message

07031d37b2f9 ( mm/vmalloc.c: switch to WARN_ON() and move it under unlink_va() )
728e0fbf263e ( mm/vmalloc.c: get rid of one single unlink_va() when merge )

[ 1.130734] ------------[ cut here ]------------
[ 1.130745] kernel BUG at mm/vmalloc.c:470!
[ 1.130753] Oops: Exception in kernel mode, sig: 5 [#1]
[ 1.130761] LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA pSeries
[ 1.130768] Modules linked in: ibmvscsi(+) ibmveth scsi_transport_srp
[ 1.130781] CPU: 23 PID: 127 Comm: kworker/23:0 Not tainted 5.2.0-rc3-next-20190603 #1
[ 1.130796] Workqueue: events do_free_init
[ 1.130803] NIP: c0000000003bcc48 LR: c0000000003bcbc4 CTR: c0000000003bc860
[ 1.130812] REGS: c0000018ec7877e0 TRAP: 0700 Not tainted (5.2.0-rc3-next-20190603)
[ 1.130820] MSR: 800000010282b033 <SF,VEC,VSX,EE,FP,ME,IR,DR,RI,LE,TM[E]> CR: 24008888 XER: 20040005
[ 1.130837] CFAR: c0000000003bcc6c IRQMASK: 0
[ 1.130837] GPR00: c0000000003bd0e4 c0000018ec787a70 c000000001929400 0000000000000001
[ 1.130837] GPR04: c0000018e8d2e8f0 c0000018e8d2e8f0 c008000006570000 c008000006550000
[ 1.130837] GPR08: c008000009670000 c0000018e8d0e098 c0000018e8d0e5f8 c0000018e8ca93f0
[ 1.130837] GPR12: c0000000003bc860 c00000001ec4e200 c000000000160188 c0000018f4044d00
[ 1.130837] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 1.130837] GPR20: 0000000000000000 0000000000000000 c000000001485108 c0000000019620d8
[ 1.130837] GPR24: c000000001962464 0000000000000800 0000000000000001 0000000000001800
[ 1.130837] GPR28: c000000001ccc0a8 c000000001ccc080 c0000018e8d2e8b8 c0000018e8d2e8d8
[ 1.130899] NIP [c0000000003bcc48] __free_vmap_area+0xf8/0x480
[ 1.130906] LR [c0000000003bcbc4] __free_vmap_area+0x74/0x480
[ 1.130912] Call Trace:
[ 1.130916] [c0000018ec787a70] [c0000000003bcf70] __free_vmap_area+0x420/0x480 (unreliable)
[ 1.130924] [c0000018ec787ac0] [c0000000003bd0e4] __purge_vmap_area_lazy+0x114/0x1e0
[ 1.130932] [c0000018ec787b10] [c0000000003bef44] _vm_unmap_aliases+0x1a4/0x210
[ 1.130939] [c0000018ec787b90] [c0000000003c1c48] __vunmap+0xe8/0x220
[ 1.130946] [c0000018ec787c20] [c00000000021102c] module_memfree+0x3c/0x50
[ 1.130953] [c0000018ec787c40] [c0000000002110ac] do_free_init+0x6c/0xa0
[ 1.130964] [c0000018ec787c70] [c000000000156df0] process_one_work+0x260/0x520
[ 1.130976] [c0000018ec787d10] [c000000000157138] worker_thread+0x88/0x5f0
[ 1.130985] [c0000018ec787db0] [c000000000160328] kthread+0x1a8/0x1b0
[ 1.130996] [c0000018ec787e20] [c00000000000ba54] ret_from_kernel_thread+0x5c/0x68
[ 1.131004] Instruction dump:
[ 1.131011] e9292c90 2fa90000 419e0378 e8fe0000 e8de0008 60000000 e909ffe8 e949ffe0
[ 1.131021] 7fa74040 409c0014 7faa3040 409c002c <0fe00000> 60000000 7faa3040 409cfff4
[ 1.131032] ---[ end trace b0b43434aedbb78e ]—

Have attached the boot log for reference.

Thanks
-Sachin


[84348.251113] kexec_core: Starting new kernel
[84348.271197] kexec: waiting for cpu 36 (physical 36) to enter 1 state
[84348.271208] kexec: waiting for cpu 1 (physical 1) to enter 2 state
[84348.272736] kexec: Starting switchover sequence.
I'm in purgatory
[ 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] Using 1TB segments
[ 0.000000] hash-mmu: Initializing hash mmu with SLB
[ 0.000000] Linux version 5.2.0-rc3-next-20190603 (root@ltczep10-lp4.aus.stglabs.ibm.com) (gcc version 8.2.1 20180905 (Red Hat 8.2.1-3) (GCC)) #1 SMP Tue Jun 4 01:04:57 CDT 2019
[ 0.000000] Found initrd at 0xc000000003780000:0xc000000004f31731
[ 0.000000] Using pSeries machine description
[ 0.000000] printk: bootconsole [udbg0] enabled
[ 0.000000] Partition configured for 40 cpus.
[ 0.000000] CPU maps initialized for 8 threads per core
[ 0.000000] -----------------------------------------------------
[ 0.000000] phys_mem_size = 0x1900000000
[ 0.000000] dcache_bsize = 0x80
[ 0.000000] icache_bsize = 0x80
[ 0.000000] cpu_features = 0x0000c07f8f5f91a7
[ 0.000000] possible = 0x0000fbffcf5fb1a7
[ 0.000000] always = 0x00000003800081a1
[ 0.000000] cpu_user_features = 0xdc0065c2 0xefe00000
[ 0.000000] mmu_features = 0x7c006001
[ 0.000000] firmware_features = 0x00000017c45bfc57
[ 0.000000] hash-mmu: ppc64_pft_size = 0x1e
[ 0.000000] hash-mmu: htab_hash_mask = 0x7fffff
[ 0.000000] hash-mmu: kernel vmalloc start = 0xc008000000000000
[ 0.000000] hash-mmu: kernel IO start = 0xc00a000000000000
[ 0.000000] hash-mmu: kernel vmemmap start = 0xc00c000000000000
[ 0.000000] -----------------------------------------------------
[ 0.000000] numa: NODE_DATA [mem 0x18ffe98980-0x18ffe9ffff]
[ 0.000000] rfi-flush: fallback displacement flush available
[ 0.000000] rfi-flush: mttrig type flush available
[ 0.000000] count-cache-flush: full software flush sequence enabled.
[ 0.000000] stf-barrier: eieio barrier available
[ 0.000000] PPC64 nvram contains 15360 bytes
[ 0.000000] barrier-nospec: using ORI speculation barrier
[ 0.000000] Zone ranges:
[ 0.000000] Normal [mem 0x0000000000000000-0x00000018ffffffff]
[ 0.000000] Device empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000000000000-0x00000018ffffffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x00000018ffffffff]
[ 0.000000] percpu: Embedded 11 pages/cpu s629912 r0 d90984 u1048576
[ 0.000000] node[0] zonelist: 0:Normal
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 1636800
[ 0.000000] Policy zone: Normal
[ 0.000000] Kernel command line: root=UUID=8b2c60d2-4da6-4873-b9ac-6b332055a0f2 ro
[ 0.000000] Memory: 104635840K/104857600K available (12416K kernel code, 1792K rwdata, 6976K rodata, 4992K init, 3847K bss, 221760K reserved, 0K cma-reserved)
[ 0.000000] random: get_random_u64 called from cache_random_seq_create+0x98/0x1f0 with crng_init=0
[ 0.000000] SLUB: HWalign=128, Order=0-3, MinObjects=0, CPUs=40, Nodes=32
[ 0.000000] ftrace: allocating 31579 entries in 12 pages
[ 0.000000] rcu: Hierarchical RCU implementation.
[ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=2048 to nr_cpu_ids=40.
[ 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=40
[ 0.000000] NR_IRQS: 512, nr_irqs: 512, preallocated irqs: 16
[ 0.000000] rcu: Offload RCU callbacks from CPUs: (none).
[ 0.000001] time_init: 56 bit decrementer (max: 7fffffffffffff)
[ 0.000066] clocksource: timebase: mask: 0xffffffffffffffff max_cycles: 0x761537d007, max_idle_ns: 440795202126 ns
[ 0.000175] clocksource: timebase mult[1f40000] shift[24] registered
[ 0.000303] Console: colour dummy device 80x25
[ 0.000354] printk: console [hvc0] enabled
[ 0.000354] printk: console [hvc0] enabled
[ 0.000401] printk: bootconsole [udbg0] disabled
[ 0.000401] printk: bootconsole [udbg0] disabled
[ 0.000496] pid_max: default: 40960 minimum: 320
[ 0.000650] LSM: Security Framework initializing
[ 0.000740] Yama: becoming mindful.
[ 0.000762] SELinux: Initializing.
[ 0.000926] *** VALIDATE SELinux ***
[ 0.002919] Dentry cache hash table entries: 8388608 (order: 10, 67108864 bytes)
[ 0.003909] Inode-cache hash table entries: 4194304 (order: 9, 33554432 bytes)
[ 0.003975] Mount-cache hash table entries: 131072 (order: 4, 1048576 bytes)
[ 0.004015] Mountpoint-cache hash table entries: 131072 (order: 4, 1048576 bytes)
[ 0.004330] *** VALIDATE proc ***
[ 0.004590] *** VALIDATE cgroup1 ***
[ 0.004596] *** VALIDATE cgroup2 ***
[ 0.005137] EEH: pSeries platform initialized
[ 0.005147] POWER9 performance monitor hardware support registered
[ 0.005185] rcu: Hierarchical SRCU implementation.
[ 0.005979] smp: Bringing up secondary CPUs ...
[ 0.016355] smp: Brought up 1 node, 40 CPUs
[ 0.016365] numa: Node 0 CPUs: 0-39
[ 0.016369] Using small cores at SMT level
[ 0.016372] Using shared cache scheduler topology
[ 0.018337] devtmpfs: initialized
[ 0.033076] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.033092] futex hash table entries: 16384 (order: 5, 2097152 bytes)
[ 0.033653] NET: Registered protocol family 16
[ 0.033799] audit: initializing netlink subsys (disabled)
[ 0.033864] audit: type=2000 audit(1559629150.030:1): state=initialized audit_enabled=0 res=1
[ 0.034221] Kprobe smoke test: started
[ 0.048644] Kprobe smoke test: passed successfully
[ 0.048730] cpuidle: using governor menu
[ 0.048942] pstore: Registered nvram as persistent store backend
[ 0.055525] PCI: Probing PCI hardware
[ 0.055531] EEH: No capable adapters found
[ 0.055625] pseries-rng: Registering arch random hook.
[ 0.056923] HugeTLB registered 16.0 MiB page size, pre-allocated 0 pages
[ 0.056928] HugeTLB registered 16.0 GiB page size, pre-allocated 0 pages
[ 0.313749] cryptd: max_cpu_qlen set to 1000
[ 0.315681] alg: No test for lzo-rle (lzo-rle-generic)
[ 0.315800] alg: No test for lzo-rle (lzo-rle-scomp)
[ 0.319635] vgaarb: loaded
[ 0.319719] SCSI subsystem initialized
[ 0.319757] usbcore: registered new interface driver usbfs
[ 0.319768] usbcore: registered new interface driver hub
[ 0.319930] usbcore: registered new device driver usb
[ 0.319958] pps_core: LinuxPPS API ver. 1 registered
[ 0.319962] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 0.319970] PTP clock support registered
[ 0.320175] EDAC MC: Ver: 3.0.0
[ 0.320346] NetLabel: Initializing
[ 0.320350] NetLabel: domain hash size = 128
[ 0.320354] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO
[ 0.320368] NetLabel: unlabeled traffic allowed by default
[ 0.320562] clocksource: Switched to clocksource timebase
[ 0.335258] VFS: Disk quotas dquot_6.6.0
[ 0.335289] VFS: Dquot-cache hash table entries: 8192 (order 0, 65536 bytes)
[ 0.335312] *** VALIDATE hugetlbfs ***
[ 0.336931] random: fast init done
[ 0.337531] NET: Registered protocol family 2
[ 0.337722] tcp_listen_portaddr_hash hash table entries: 65536 (order: 4, 1048576 bytes)
[ 0.337849] TCP established hash table entries: 524288 (order: 6, 4194304 bytes)
[ 0.338962] TCP bind hash table entries: 65536 (order: 4, 1048576 bytes)
[ 0.339076] TCP: Hash tables configured (established 524288 bind 65536)
[ 0.339131] UDP hash table entries: 65536 (order: 5, 2097152 bytes)
[ 0.339359] UDP-Lite hash table entries: 65536 (order: 5, 2097152 bytes)
[ 0.339658] NET: Registered protocol family 1
[ 0.339666] NET: Registered protocol family 44
[ 0.339671] PCI: CLS 0 bytes, default 128
[ 0.339705] Trying to unpack rootfs image as initramfs...
[ 0.705596] Freeing initrd memory: 24256K
[ 0.708415] IOMMU table initialized, virtual merging enabled
[ 0.722241] hv-24x7: read 1530 catalog entries, created 537 event attrs (0 failures), 275 descs
[ 0.723581] workingset: timestamp_bits=38 max_order=21 bucket_order=0
[ 0.724976] zbud: loaded
[ 0.726758] NET: Registered protocol family 38
[ 0.726764] Key type asymmetric registered
[ 0.726768] Asymmetric key parser 'x509' registered
[ 0.726777] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246)
[ 0.726922] io scheduler mq-deadline registered
[ 0.726927] io scheduler kyber registered
[ 0.726974] io scheduler bfq registered
[ 0.727705] atomic64_test: passed
[ 0.727771] shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
[ 0.727776] PowerPC PowerNV PCI Hotplug Driver version: 0.1
[ 0.728152] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 0.728431] Non-volatile memory driver v1.3
[ 0.728467] Linux agpgart interface v0.103
[ 0.728754] rdac: device handler registered
[ 0.728802] hp_sw: device handler registered
[ 0.728806] emc: device handler registered
[ 0.728923] alua: device handler registered
[ 0.728957] libphy: Fixed MDIO Bus: probed
[ 0.729019] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 0.729030] ehci-pci: EHCI PCI platform driver
[ 0.729040] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 0.729050] ohci-pci: OHCI PCI platform driver
[ 0.729058] uhci_hcd: USB Universal Host Controller Interface driver
[ 0.729093] usbcore: registered new interface driver usbserial_generic
[ 0.729101] usbserial: USB Serial support registered for generic
[ 0.729160] mousedev: PS/2 mouse device common for all mice
[ 0.729280] rtc-generic rtc-generic: registered as rtc0
[ 0.729745] nx_compress_pseries ibm,compression-v1: nx842_OF_upd: max_sync_size new:65536 old:0
[ 0.729753] nx_compress_pseries ibm,compression-v1: nx842_OF_upd: max_sync_sg new:510 old:0
[ 0.729760] nx_compress_pseries ibm,compression-v1: nx842_OF_upd: max_sg_len new:4080 old:0
[ 0.729830] alg: No test for 842 (842-nx)
[ 0.730811] hidraw: raw HID events driver (C) Jiri Kosina
[ 0.730849] usbcore: registered new interface driver usbhid
[ 0.730853] usbhid: USB HID core driver
[ 0.730946] drop_monitor: Initializing network drop monitor service
[ 0.731047] Initializing XFRM netlink socket
[ 0.731211] NET: Registered protocol family 10
[ 0.731589] Segment Routing with IPv6
[ 0.731613] NET: Registered protocol family 17
[ 0.731680] mpls_gso: MPLS GSO support
[ 0.732435] Running instruction emulation self-tests ...
[ 0.732442] emulate_step_test: ld : PASS
[ 0.732446] emulate_step_test: lwz : PASS
[ 0.732450] emulate_step_test: lwzx : PASS
[ 0.732454] emulate_step_test: std : PASS
[ 0.732459] emulate_step_test: ldarx / stdcx. : PASS
[ 0.732465] emulate_step_test: lfsx : PASS
[ 0.732469] emulate_step_test: stfsx : PASS
[ 0.732473] emulate_step_test: lfdx : PASS
[ 0.732476] emulate_step_test: stfdx : PASS
[ 0.732481] emulate_step_test: lvx : PASS
[ 0.732485] emulate_step_test: stvx : PASS
[ 0.732490] emulate_step_test: lxvd2x : PASS
[ 0.732494] emulate_step_test: stxvd2x : PASS
[ 0.732499] emulate_step_test: nop : R0 = LONG_MAX PASS
[ 0.732505] emulate_step_test: add : RA = LONG_MIN, RB = LONG_MIN PASS
[ 0.732511] emulate_step_test: add : RA = LONG_MIN, RB = LONG_MAX PASS
[ 0.732516] emulate_step_test: add : RA = LONG_MAX, RB = LONG_MAX PASS
[ 0.732522] emulate_step_test: add : RA = ULONG_MAX, RB = ULONG_MAX PASS
[ 0.732528] emulate_step_test: add : RA = ULONG_MAX, RB = 0x1 PASS
[ 0.732533] emulate_step_test: add : RA = INT_MIN, RB = INT_MIN PASS
[ 0.732539] emulate_step_test: add : RA = INT_MIN, RB = INT_MAX PASS
[ 0.732545] emulate_step_test: add : RA = INT_MAX, RB = INT_MAX PASS
[ 0.732550] emulate_step_test: add : RA = UINT_MAX, RB = UINT_MAX PASS
[ 0.732556] emulate_step_test: add : RA = UINT_MAX, RB = 0x1 PASS
[ 0.732562] emulate_step_test: add. : RA = LONG_MIN, RB = LONG_MIN PASS
[ 0.732568] emulate_step_test: add. : RA = LONG_MIN, RB = LONG_MAX PASS
[ 0.732573] emulate_step_test: add. : RA = LONG_MAX, RB = LONG_MAX PASS
[ 0.732579] emulate_step_test: add. : RA = ULONG_MAX, RB = ULONG_MAX PASS
[ 0.732584] emulate_step_test: add. : RA = ULONG_MAX, RB = 0x1 PASS
[ 0.732590] emulate_step_test: add. : RA = INT_MIN, RB = INT_MIN PASS
[ 0.732596] emulate_step_test: add. : RA = INT_MIN, RB = INT_MAX PASS
[ 0.732601] emulate_step_test: add. : RA = INT_MAX, RB = INT_MAX PASS
[ 0.732607] emulate_step_test: add. : RA = UINT_MAX, RB = UINT_MAX PASS
[ 0.732613] emulate_step_test: add. : RA = UINT_MAX, RB = 0x1 PASS
[ 0.732619] emulate_step_test: addc : RA = LONG_MIN, RB = LONG_MIN PASS
[ 0.732624] emulate_step_test: addc : RA = LONG_MIN, RB = LONG_MAX PASS
[ 0.732630] emulate_step_test: addc : RA = LONG_MAX, RB = LONG_MAX PASS
[ 0.732636] emulate_step_test: addc : RA = ULONG_MAX, RB = ULONG_MAX PASS
[ 0.732641] emulate_step_test: addc : RA = ULONG_MAX, RB = 0x1 PASS
[ 0.732647] emulate_step_test: addc : RA = INT_MIN, RB = INT_MIN PASS
[ 0.732652] emulate_step_test: addc : RA = INT_MIN, RB = INT_MAX PASS
[ 0.732658] emulate_step_test: addc : RA = INT_MAX, RB = INT_MAX PASS
[ 0.732664] emulate_step_test: addc : RA = UINT_MAX, RB = UINT_MAX PASS
[ 0.732669] emulate_step_test: addc : RA = UINT_MAX, RB = 0x1 PASS
[ 0.732675] emulate_step_test: addc : RA = LONG_MIN | INT_MIN, RB = LONG_MIN | INT_MIN PASS
[ 0.732680] emulate_step_test: addc. : RA = LONG_MIN, RB = LONG_MIN PASS
[ 0.732686] emulate_step_test: addc. : RA = LONG_MIN, RB = LONG_MAX PASS
[ 0.732692] emulate_step_test: addc. : RA = LONG_MAX, RB = LONG_MAX PASS
[ 0.732697] emulate_step_test: addc. : RA = ULONG_MAX, RB = ULONG_MAX PASS
[ 0.732703] emulate_step_test: addc. : RA = ULONG_MAX, RB = 0x1 PASS
[ 0.732708] emulate_step_test: addc. : RA = INT_MIN, RB = INT_MIN PASS
[ 0.732714] emulate_step_test: addc. : RA = INT_MIN, RB = INT_MAX PASS
[ 0.732720] emulate_step_test: addc. : RA = INT_MAX, RB = INT_MAX PASS
[ 0.732725] emulate_step_test: addc. : RA = UINT_MAX, RB = UINT_MAX PASS
[ 0.732731] emulate_step_test: addc. : RA = UINT_MAX, RB = 0x1 PASS
[ 0.732737] emulate_step_test: addc. : RA = LONG_MIN | INT_MIN, RB = LONG_MIN | INT_MIN PASS
[ 0.732874] registered taskstats version 1
[ 0.732914] zswap: loaded using pool lzo/zbud
[ 0.732960] pstore: Using crash dump compression: deflate
[ 0.736153] Key type big_key registered
[ 0.738681] Key type encrypted registered
[ 0.738700] ima: No TPM chip found, activating TPM-bypass!
[ 0.738705] ima: Allocated hash algorithm: sha256
[ 0.738718] No architecture policies found
[ 0.738731] evm: Initialising EVM extended attributes:
[ 0.738734] evm: security.selinux
[ 0.738737] evm: security.ima
[ 0.738740] evm: security.capability
[ 0.738743] evm: HMAC attrs: 0x1
[ 0.738987] rtc-generic rtc-generic: setting system clock to 2019-06-04T06:19:10 UTC (1559629150)
[ 0.740414] Freeing unused kernel memory: 4992K
[ 0.740419] This architecture does not have kernel memory protection.
[ 0.740424] Run /init as init process
[ 0.754661] systemd[1]: systemd 239 running in system mode. (+PAM +AUDIT +SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD +IDN2 -IDN +PCRE2 default-hierarchy=legacy)
[ 0.754843] systemd[1]: Detected architecture ppc64-le.
[ 0.754849] systemd[1]: Running in initial RAM disk.

Welcome to Red Hat Enterprise Linux 8.0 Beta (Ootpa) dracut-049-10.git20190115.el8 (Initramfs)!

[ 0.764525] systemd[1]: Set hostname to <ltczep10-lp4.aus.stglabs.ibm.com>.
[ 0.813003] random: systemd: uninitialized urandom read (16 bytes read)
[ 0.813105] systemd[1]: Listening on Journal Socket (/dev/log).
[ OK ] Listening on Journal Socket (/dev/log).
[ 0.813308] random: systemd: uninitialized urandom read (16 bytes read)
[ 0.813319] systemd[1]: Reached target Swap.
[ OK ] Reached target Swap.
[ 0.813447] random: systemd: uninitialized urandom read (16 bytes read)
[ 0.813498] systemd[1]: Listening on udev Kernel Socket.
[ OK ] Listening on udev Kernel Socket.
[ 0.813625] systemd[1]: Reached target Local File Systems.
[ OK ] Reached target Local File Systems.
[ 0.813825] systemd[1]: Listening on Journal Socket.
[ OK ] Listening on Journal Socket.
[ 0.815758] systemd[1]: Starting Setup Virtual Console...
Starting Setup Virtual Console...
Starting Create Volatile Files and Directories...
Starting Apply Kernel Variables...
[ OK ] Reached target Timers.
Starting Create list of required st…ce nodes for the current kernel...
[ OK ] Reached target Slices.
Starting Journal Service...
[ OK ] Listening on udev Control Socket.
[ OK ] Reached target Sockets.
[ OK ] Started Create list of required sta…vice nodes for the current kernel.
[ OK ] Started Create Volatile Files and Directories.
[ OK ] Started Apply Kernel Variables.
Starting Create Static Device Nodes in /dev...
[ OK ] Started Create Static Device Nodes in /dev.
[ OK ] Started Journal Service.
[ OK ] Started Setup Virtual Console.
Starting dracut cmdline hook...
[ OK ] Started dracut cmdline hook.
Starting dracut pre-udev hook...
[ OK ] Started dracut pre-udev hook.
Starting udev Kernel Device Manager...
[ OK ] Started udev Kernel Device Manager.
Starting udev Coldplug all Devices...
Mounting Kernel Configuration File System...
[ OK ] Mounted Kernel Configuration File System.
[ 1.046123] synth uevent: /devices/vio: failed to send uevent
[ 1.046134] vio vio: uevent: failed to send synthetic uevent
[ 1.046181] synth uevent: /devices/vio/4000: failed to send uevent
[ 1.046186] vio 4000: uevent: failed to send synthetic uevent
[ 1.046199] synth uevent: /devices/vio/4001: failed to send uevent
[ 1.046204] vio 4001: uevent: failed to send synthetic uevent
[ 1.046220] synth uevent: /devices/vio/4002: failed to send uevent
[ 1.046225] vio 4002: uevent: failed to send synthetic uevent
[ 1.046238] synth uevent: /devices/vio/4004: failed to send uevent
[ 1.046243] vio 4004: uevent: failed to send synthetic uevent
[ OK ] Started udev Coldplug all Devices.
Starting dracut initqueue hook...
[ OK ] Reached target System Initialization.
Starting Show Plymouth Boot Screen...
[ OK ] Started Show Plymouth Boot Screen.
[ OK ] Reached target Paths.
[ OK ] Started Forward Password Requests to Plymouth Directory Watch.
[ OK ] Reached target Basic System.
[ 1.080244] ibmvscsi 30000068: SRP_VERSION: 16.a
[ 1.089914] ibmveth 30000002 env2: renamed from eth0
[ 1.130734] ------------[ cut here ]------------
[ 1.130745] kernel BUG at mm/vmalloc.c:470!
[ 1.130753] Oops: Exception in kernel mode, sig: 5 [#1]
[ 1.130761] LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA pSeries
[ 1.130768] Modules linked in: ibmvscsi(+) ibmveth scsi_transport_srp
[ 1.130781] CPU: 23 PID: 127 Comm: kworker/23:0 Not tainted 5.2.0-rc3-next-20190603 #1
[ 1.130796] Workqueue: events do_free_init
[ 1.130803] NIP: c0000000003bcc48 LR: c0000000003bcbc4 CTR: c0000000003bc860
[ 1.130812] REGS: c0000018ec7877e0 TRAP: 0700 Not tainted (5.2.0-rc3-next-20190603)
[ 1.130820] MSR: 800000010282b033 <SF,VEC,VSX,EE,FP,ME,IR,DR,RI,LE,TM[E]> CR: 24008888 XER: 20040005
[ 1.130837] CFAR: c0000000003bcc6c IRQMASK: 0
[ 1.130837] GPR00: c0000000003bd0e4 c0000018ec787a70 c000000001929400 0000000000000001
[ 1.130837] GPR04: c0000018e8d2e8f0 c0000018e8d2e8f0 c008000006570000 c008000006550000
[ 1.130837] GPR08: c008000009670000 c0000018e8d0e098 c0000018e8d0e5f8 c0000018e8ca93f0
[ 1.130837] GPR12: c0000000003bc860 c00000001ec4e200 c000000000160188 c0000018f4044d00
[ 1.130837] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 1.130837] GPR20: 0000000000000000 0000000000000000 c000000001485108 c0000000019620d8
[ 1.130837] GPR24: c000000001962464 0000000000000800 0000000000000001 0000000000001800
[ 1.130837] GPR28: c000000001ccc0a8 c000000001ccc080 c0000018e8d2e8b8 c0000018e8d2e8d8
[ 1.130899] NIP [c0000000003bcc48] __free_vmap_area+0xf8/0x480
[ 1.130906] LR [c0000000003bcbc4] __free_vmap_area+0x74/0x480
[ 1.130912] Call Trace:
[ 1.130916] [c0000018ec787a70] [c0000000003bcf70] __free_vmap_area+0x420/0x480 (unreliable)
[ 1.130924] [c0000018ec787ac0] [c0000000003bd0e4] __purge_vmap_area_lazy+0x114/0x1e0
[ 1.130932] [c0000018ec787b10] [c0000000003bef44] _vm_unmap_aliases+0x1a4/0x210
[ 1.130939] [c0000018ec787b90] [c0000000003c1c48] __vunmap+0xe8/0x220
[ 1.130946] [c0000018ec787c20] [c00000000021102c] module_memfree+0x3c/0x50
[ 1.130953] [c0000018ec787c40] [c0000000002110ac] do_free_init+0x6c/0xa0
[ 1.130964] [c0000018ec787c70] [c000000000156df0] process_one_work+0x260/0x520
[ 1.130976] [c0000018ec787d10] [c000000000157138] worker_thread+0x88/0x5f0
[ 1.130985] [c0000018ec787db0] [c000000000160328] kthread+0x1a8/0x1b0
[ 1.130996] [c0000018ec787e20] [c00000000000ba54] ret_from_kernel_thread+0x5c/0x68
[ 1.131004] Instruction dump:
[ 1.131011] e9292c90 2fa90000 419e0378 e8fe0000 e8de0008 60000000 e909ffe8 e949ffe0
[ 1.131021] 7fa74040 409c0014 7faa3040 409c002c <0fe00000> 60000000 7faa3040 409cfff4
[ 1.131032] ---[ end trace b0b43434aedbb78e ]---
[ 1.133448]
[ 2.133462] Kernel panic - not syncing: Fatal exception
[ 2.141765] WARNING: CPU: 23 PID: 127 at drivers/tty/vt/vt.c:4234 do_unblank_screen+0x190/0x250
[ 2.141775] Modules linked in: ibmvscsi(+) ibmveth scsi_transport_srp
[ 2.141785] CPU: 23 PID: 127 Comm: kworker/23:0 Tainted: G D 5.2.0-rc3-next-20190603 #1
[ 2.141796] Workqueue: events do_free_init
[ 2.141802] NIP: c0000000007718a0 LR: c00000000077188c CTR: c000000000c06d30
[ 2.141810] REGS: c0000018ec7872c0 TRAP: 0700 Tainted: G D (5.2.0-rc3-next-20190603)
[ 2.141818] MSR: 8000000000021033 <SF,ME,IR,DR,RI,LE> CR: 28002242 XER: 2004000c
[ 2.141830] CFAR: c0000000001b54e8 IRQMASK: 3
[ 2.141830] GPR00: c00000000077188c c0000018ec787550 c000000001929400 0000000000000000
[ 2.141830] GPR04: 0000000000000003 c0000018e392e00e 0000000000001dd7 c0000018ec787490
[ 2.141830] GPR08: c0000000017e3258 0000000000000000 0000000000000000 c0000018ec78730f
[ 2.141830] GPR12: 0000000028002448 c00000001ec4e200 c000000000160188 c0000018f4044d00
[ 2.141830] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 2.141830] GPR20: 0000000000000000 0000000000000000 c000000001485108 c0000000019620d8
[ 2.141830] GPR24: c000000001962464 0000000000000800 c0000000017f3b20 0000000000001800
[ 2.141830] GPR28: c000000001b066c0 c000000001b06698 0000000000000000 c000000001c15100
[ 2.141899] NIP [c0000000007718a0] do_unblank_screen+0x190/0x250
[ 2.141906] LR [c00000000077188c] do_unblank_screen+0x17c/0x250
[ 2.141912] Call Trace:
[ 2.141917] [c0000018ec787550] [c0000000007718bc] do_unblank_screen+0x1ac/0x250 (unreliable)
[ 2.141928] [c0000018ec7875d0] [c00000000012b504] panic+0x1dc/0x408
[ 2.141937] [c0000018ec787670] [c00000000002db70] oops_end+0x1b0/0x1c0
[ 2.141945] [c0000018ec7876f0] [c0000000000307a0] program_check_exception+0x2c0/0x3c0
[ 2.141954] [c0000018ec787770] [c000000000008f54] program_check_common+0x154/0x160
[ 2.141965] --- interrupt: 700 at __free_vmap_area+0xf8/0x480
[ 2.141965] LR = __free_vmap_area+0x74/0x480
[ 2.141976] [c0000018ec787a70] [c0000000003bcf70] __free_vmap_area+0x420/0x480 (unreliable)
[ 2.141985] [c0000018ec787ac0] [c0000000003bd0e4] __purge_vmap_area_lazy+0x114/0x1e0
[ 2.141995] [c0000018ec787b10] [c0000000003bef44] _vm_unmap_aliases+0x1a4/0x210
[ 2.142004] [c0000018ec787b90] [c0000000003c1c48] __vunmap+0xe8/0x220
[ 2.142012] [c0000018ec787c20] [c00000000021102c] module_memfree+0x3c/0x50
[ 2.142020] [c0000018ec787c40] [c0000000002110ac] do_free_init+0x6c/0xa0
[ 2.142029] [c0000018ec787c70] [c000000000156df0] process_one_work+0x260/0x520
[ 2.142038] [c0000018ec787d10] [c000000000157138] worker_thread+0x88/0x5f0
[ 2.142046] [c0000018ec787db0] [c000000000160328] kthread+0x1a8/0x1b0
[ 2.142054] [c0000018ec787e20] [c00000000000ba54] ret_from_kernel_thread+0x5c/0x68
[ 2.142062] Instruction dump:
[ 2.142067] 4e800020 60000000 60000000 60000000 7c0802a6 f8010090 4ba43c51 60000000
[ 2.142078] 813f0000 7d231b78 2f830000 409e0034 <0fe00000> e8010090 7c0803a6 4bfffeac
[ 2.142090] ---[ end trace b0b43434aedbb78f ]---
[ 2.142097] Rebooting in 10 seconds..

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