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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Sat, 14 Mar 2020 08:10:12 -0000 Received: from d06av24.portsmouth.uk.ibm.com (mk.ibm.com [9.149.105.60]) by b06cxnps4074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 02E8ABjo30933202 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sat, 14 Mar 2020 08:10:11 GMT Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 7297E42041; Sat, 14 Mar 2020 08:10:11 +0000 (GMT) Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id EA7E142049; Sat, 14 Mar 2020 08:10:06 +0000 (GMT) Received: from [9.85.72.41] (unknown [9.85.72.41]) by d06av24.portsmouth.uk.ibm.com (Postfix) with ESMTP; Sat, 14 Mar 2020 08:10:06 +0000 (GMT) From: Sachin Sant Content-Type: multipart/mixed; boundary="Apple-Mail=_4D8EC7C3-2942-4D63-9380-D3F40A3E8B3E" Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.11\)) Subject: Re: [5.6.0-rc2-next-20200218/powerpc] Boot failure on POWER9 Date: Sat, 14 Mar 2020 13:40:05 +0530 In-Reply-To: <11e69587-8b64-6088-cb5c-d7d719842535@suse.cz> To: Vlastimil Babka , Michael Ellerman References: <20200227121214.GE3771@dhcp22.suse.cz> <52EF4673-7292-4C4C-B459-AF583951BA48@linux.vnet.ibm.com> <9a86f865-50b5-7483-9257-dbb08fecd62b@suse.cz> <20200227182650.GG3771@dhcp22.suse.cz> <20200310150114.GO8447@dhcp22.suse.cz> <87a74lix5p.fsf@mpe.ellerman.id.au> <875zf8y1i1.fsf@mpe.ellerman.id.au> <20200313111246.GB25144@linux.vnet.ibm.com> <11e69587-8b64-6088-cb5c-d7d719842535@suse.cz> X-Mailer: Apple Mail (2.3445.104.11) X-TM-AS-GCONF: 00 x-cbid: 20031408-4275-0000-0000-000003AC15D4 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 20031408-4276-0000-0000-000038C138BA Message-Id: <252C8513-60A6-43CC-B61D-E286909F88C3@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.572 definitions=2020-03-14_02:2020-03-12, 2020-03-14 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 priorityscore=1501 bulkscore=0 spamscore=0 lowpriorityscore=0 mlxscore=0 clxscore=1011 phishscore=0 malwarescore=0 suspectscore=0 mlxlogscore=785 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2003140041 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Srikar Dronamraju , Michal Hocko , Pekka Enberg , Linux-Next Mailing List , Paul Mackerras , David Rientjes , Christopher Lameter , linuxppc-dev@lists.ozlabs.org, Joonsoo Kim , Kirill Tkhai Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" --Apple-Mail=_4D8EC7C3-2942-4D63-9380-D3F40A3E8B3E Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii > On 13-Mar-2020, at 5:05 PM, Vlastimil Babka wrote: >=20 > On 3/13/20 12:12 PM, Srikar Dronamraju wrote: >> * Michael Ellerman [2020-03-13 21:48:06]: >>=20 >>> Sachin Sant writes: >>>>> The patch below might work. Sachin can you test this? I tried = faking up >>>>> a system with a memoryless node zero but couldn't get it to even = start >>>>> booting. >>>>>=20 >>>> The patch did not help. The kernel crashed during >>>> the boot with the same call trace. >>>>=20 >>>> BUG_ON() introduced with the patch was not triggered. >>>=20 >>> OK, that's weird. >>>=20 >>> I eventually managed to get a memoryless node going in sim, and it >>> appears to work there. >>>=20 >>> eg in dmesg: >>>=20 >>> [ 0.000000][ T0] numa: NODE_DATA [mem = 0x2000fffa2f80-0x2000fffa7fff] >>> [ 0.000000][ T0] numa: NODE_DATA(0) on node 1 >>> [ 0.000000][ T0] numa: NODE_DATA [mem = 0x2000fff9df00-0x2000fffa2f7f] >>> ... >>> [ 0.000000][ T0] Early memory node ranges >>> [ 0.000000][ T0] node 1: [mem = 0x0000000000000000-0x00000000ffffffff] >>> [ 0.000000][ T0] node 1: [mem = 0x0000200000000000-0x00002000ffffffff] >>> [ 0.000000][ T0] Could not find start_pfn for node 0 >>> [ 0.000000][ T0] Initmem setup node 0 [mem = 0x0000000000000000-0x0000000000000000] >>> [ 0.000000][ T0] On node 0 totalpages: 0 >>> [ 0.000000][ T0] Initmem setup node 1 [mem = 0x0000000000000000-0x00002000ffffffff] >>> [ 0.000000][ T0] On node 1 totalpages: 131072 >>>=20 >>> # dmesg | grep set_numa >>> [ 0.000000][ T0] set_numa_mem: mem node for 0 =3D 1 >>> [ 0.005654][ T0] set_numa_mem: mem node for 1 =3D 1 >>>=20 >>> So is the problem more than just node zero having no memory? >>>=20 I tried with just the patch Michael suggested on top of March 13 next = tree. I still see the same failure. Here is a snippet from the log [ 0.000000] numa: NODE_DATA [mem 0x8bfedc900-0x8bfee3fff] [ 0.000000] numa: NODE_DATA(0) on node 1 [ 0.000000] numa: NODE_DATA [mem 0x8bfed5200-0x8bfedc8ff] [ 0.000000] rfi-flush: fallback displacement flush available [ 0.000000] rfi-flush: mttrig type flush available [ 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] 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] Zone ranges: [ 0.000000] Normal [mem 0x0000000000000000-0x00000008bfffffff] [ 0.000000] Device empty [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 1: [mem 0x0000000000000000-0x00000008bfffffff] [ 0.000000] Could not find start_pfn for node 0 [ 0.000000] Initmem setup node 0 [mem = 0x0000000000000000-0x0000000000000000] [ 0.000000] Initmem setup node 1 [mem = 0x0000000000000000-0x00000008bfffffff] [ 0.000000] percpu: Embedded 11 pages/cpu s624024 r0 d96872 u1048576 [ 0.000000] Built 2 zonelists, mobility grouping on. Total pages: = 572880 Have attached the complete boot log. Thanks -Sachin --Apple-Mail=_4D8EC7C3-2942-4D63-9380-D3F40A3E8B3E Content-Disposition: attachment; filename=kernel-boot.log Content-Type: application/octet-stream; x-unix-mode=0644; name="kernel-boot.log" Content-Transfer-Encoding: 7bit [ 1076.006474] kexec_core: Starting new kernel [ 1076.026510] kexec: waiting for cpu 2 (physical 2) to enter 1 state [ 1076.026522] kexec: waiting for cpu 27 (physical 27) to enter 1 state [ 1076.026531] kexec: waiting for cpu 1 (physical 1) to enter 2 state [ 1076.026580] kexec: waiting for cpu 2 (physical 2) to enter 2 state [ 1076.026594] kexec: waiting for cpu 3 (physical 3) to enter 2 state [ 1076.026602] kexec: waiting for cpu 4 (physical 4) to enter 2 state [ 1076.026609] kexec: waiting for cpu 6 (physical 6) to enter 2 state [ 1076.026617] kexec: waiting for cpu 11 (physical 11) to enter 2 state [ 1076.026625] kexec: waiting for cpu 12 (physical 12) to enter 2 state [ 1076.026632] kexec: waiting for cpu 13 (physical 13) to enter 2 state [ 1076.190318] 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 5.6.0-rc5-next-20200313-autotest+ (root@ltc-zzci-2.aus.stglabs.ibm.com) (gcc version 8.3.1 20190507 (Red Hat 8.3.1-4) (GCC)) #2 SMP Sat Mar 14 02:57:33 CDT 2020 [ 0.000000] Found initrd at 0xc000000003350000:0xc000000004d9bd2d [ 0.000000] Using pSeries machine description [ 0.000000] printk: bootconsole [udbg0] enabled [ 0.000000] Partition configured for 32 cpus. [ 0.000000] CPU maps initialized for 8 threads per core [ 0.000000] ----------------------------------------------------- [ 0.000000] phys_mem_size = 0x8c0000000 [ 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 0x8bfedc900-0x8bfee3fff] [ 0.000000] numa: NODE_DATA(0) on node 1 [ 0.000000] numa: NODE_DATA [mem 0x8bfed5200-0x8bfedc8ff] [ 0.000000] rfi-flush: fallback displacement flush available [ 0.000000] rfi-flush: mttrig type flush available [ 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] 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] Zone ranges: [ 0.000000] Normal [mem 0x0000000000000000-0x00000008bfffffff] [ 0.000000] Device empty [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 1: [mem 0x0000000000000000-0x00000008bfffffff] [ 0.000000] Could not find start_pfn for node 0 [ 0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000000000000] [ 0.000000] Initmem setup node 1 [mem 0x0000000000000000-0x00000008bfffffff] [ 0.000000] percpu: Embedded 11 pages/cpu s624024 r0 d96872 u1048576 [ 0.000000] Built 2 zonelists, mobility grouping on. Total pages: 572880 [ 0.000000] Policy zone: Normal [ 0.000000] Kernel command line: root=UUID=681ebf25-b7c8-49b9-b247-35a96bc8183f [ 0.000000] Dentry cache hash table entries: 8388608 (order: 10, 67108864 bytes, linear) [ 0.000000] Inode-cache hash table entries: 4194304 (order: 9, 33554432 bytes, linear) [ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off [ 0.000000] Memory: 36388416K/36700160K available (11840K kernel code, 1728K rwdata, 3712K rodata, 4992K init, 2847K bss, 311744K reserved, 0K cma-reserved) [ 0.000000] SLUB: HWalign=128, Order=0-3, MinObjects=0, CPUs=32, Nodes=32 [ 0.000000] ftrace: allocating 29850 entries in 11 pages [ 0.000000] ftrace: allocated 11 pages with 3 groups [ 0.000000] rcu: Hierarchical RCU implementation. [ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=2048 to nr_cpu_ids=32. [ 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=32 [ 0.000000] NR_IRQS: 512, nr_irqs: 512, preallocated irqs: 16 [ 0.000000] xive: Using IRQ range [94000-9401f] [ 0.000000] xive: Interrupt handling initialized with spapr backend [ 0.000000] xive: Using priority 7 for all interrupts [ 0.000000] xive: Using 64kB queues [ 0.000000] rcu: Offload RCU callbacks from CPUs: (none). [ 0.000000] random: get_random_u64 called from start_kernel+0x748/0x9a4 with crng_init=0 [ 0.000001] time_init: 56 bit decrementer (max: 7fffffffffffff) [ 0.000064] clocksource: timebase: mask: 0xffffffffffffffff max_cycles: 0x761537d007, max_idle_ns: 440795202126 ns [ 0.000172] clocksource: timebase mult[1f40000] shift[24] registered [ 0.000299] Console: colour dummy device 80x25 [ 0.000349] printk: console [hvc0] enabled [ 0.000349] printk: console [hvc0] enabled [ 0.000395] printk: bootconsole [udbg0] disabled [ 0.000395] printk: bootconsole [udbg0] disabled [ 0.000472] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 0.000486] pid_max: default: 32768 minimum: 301 [ 0.000645] Mount-cache hash table entries: 131072 (order: 4, 1048576 bytes, linear) [ 0.000716] Mountpoint-cache hash table entries: 131072 (order: 4, 1048576 bytes, linear) [ 0.001517] EEH: pSeries platform initialized [ 0.001525] POWER9 performance monitor hardware support registered [ 0.001558] rcu: Hierarchical SRCU implementation. [ 0.002269] smp: Bringing up secondary CPUs ... [ 0.011609] smp: Brought up 2 nodes, 32 CPUs [ 0.011617] numa: Node 0 CPUs: [ 0.011620] numa: Node 1 CPUs: 0-31 [ 0.011624] Using small cores at SMT level [ 0.011627] Using shared cache scheduler topology [ 0.012586] devtmpfs: initialized [ 0.015708] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.015720] futex hash table entries: 8192 (order: 4, 1048576 bytes, linear) [ 0.015945] thermal_sys: Registered thermal governor 'fair_share' [ 0.015946] thermal_sys: Registered thermal governor 'step_wise' [ 0.016053] NET: Registered protocol family 16 [ 0.016196] audit: initializing netlink subsys (disabled) [ 0.016247] audit: type=2000 audit(1584172954.010:1): state=initialized audit_enabled=0 res=1 [ 0.016358] cpuidle: using governor menu [ 0.016532] pstore: Registered nvram as persistent store backend [ 0.021111] PCI: Probing PCI hardware [ 0.021118] EEH: No capable adapters found: recovery disabled. [ 0.021183] pseries-rng: Registering arch random hook. [ 0.022869] HugeTLB registered 16.0 MiB page size, pre-allocated 0 pages [ 0.022876] HugeTLB registered 16.0 GiB page size, pre-allocated 0 pages [ 0.263654] random: fast init done [ 0.264788] iommu: Default domain type: Translated [ 0.264827] vgaarb: loaded [ 0.264909] SCSI subsystem initialized [ 0.264939] usbcore: registered new interface driver usbfs [ 0.264949] usbcore: registered new interface driver hub [ 0.265029] usbcore: registered new device driver usb [ 0.265148] EDAC MC: Ver: 3.0.0 [ 0.265428] clocksource: Switched to clocksource timebase [ 0.276297] VFS: Disk quotas dquot_6.6.0 [ 0.276323] VFS: Dquot-cache hash table entries: 8192 (order 0, 65536 bytes) [ 0.277822] NET: Registered protocol family 2 [ 0.277997] tcp_listen_portaddr_hash hash table entries: 32768 (order: 3, 524288 bytes, linear) [ 0.278051] TCP established hash table entries: 524288 (order: 6, 4194304 bytes, linear) [ 0.278910] TCP bind hash table entries: 65536 (order: 4, 1048576 bytes, linear) [ 0.279002] TCP: Hash tables configured (established 524288 bind 65536) [ 0.279041] UDP hash table entries: 32768 (order: 4, 1048576 bytes, linear) [ 0.279142] UDP-Lite hash table entries: 32768 (order: 4, 1048576 bytes, linear) [ 0.279300] NET: Registered protocol family 1 [ 0.279309] PCI: CLS 0 bytes, default 128 [ 0.279345] Trying to unpack rootfs image as initramfs... [ 0.691840] Freeing initrd memory: 26880K [ 0.694449] IOMMU table initialized, virtual merging enabled [ 0.715112] hv-24x7: read 1530 catalog entries, created 537 event attrs (0 failures), 275 descs [ 0.716123] workingset: timestamp_bits=38 max_order=20 bucket_order=0 [ 0.717188] zbud: loaded [ 0.725830] NET: Registered protocol family 38 [ 0.725837] Key type asymmetric registered [ 0.725841] Asymmetric key parser 'x509' registered [ 0.725851] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249) [ 0.725934] io scheduler mq-deadline registered [ 0.725939] io scheduler kyber registered [ 0.726367] atomic64_test: passed [ 0.726400] PowerPC PowerNV PCI Hotplug Driver version: 0.1 [ 0.726708] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 0.726934] Non-volatile memory driver v1.3 [ 0.726961] Linux agpgart interface v0.103 [ 6.005618] tpm_ibmvtpm 30000003: CRQ initialization completed [ 6.005625] tpm_ibmvtpm 30000003: ibmvtpm device is not ready [ 6.005633] tpm_ibmvtpm 30000003: ibmvtpm device is not ready [ 6.005859] rdac: device handler registered [ 6.005900] hp_sw: device handler registered [ 6.005904] emc: device handler registered [ 6.005969] alua: device handler registered [ 6.006050] libphy: Fixed MDIO Bus: probed [ 6.006087] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 6.006097] ehci-pci: EHCI PCI platform driver [ 6.006105] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 6.006114] ohci-pci: OHCI PCI platform driver [ 6.006122] uhci_hcd: USB Universal Host Controller Interface driver [ 6.006151] usbcore: registered new interface driver usbserial_generic [ 6.006159] usbserial: USB Serial support registered for generic [ 6.006211] mousedev: PS/2 mouse device common for all mice [ 6.006305] rtc-generic rtc-generic: registered as rtc0 [ 6.006636] nx_compress_pseries ibm,compression-v1: nx842_OF_upd: max_sync_size new:65536 old:0 [ 6.006646] nx_compress_pseries ibm,compression-v1: nx842_OF_upd: max_sync_sg new:510 old:0 [ 6.006652] nx_compress_pseries ibm,compression-v1: nx842_OF_upd: max_sg_len new:4080 old:0 [ 6.006699] alg: No test for 842 (842-nx) [ 6.007796] hid: raw HID events driver (C) Jiri Kosina [ 6.007883] usbcore: registered new interface driver usbhid [ 6.007886] usbhid: USB HID core driver [ 6.007932] drop_monitor: Initializing network drop monitor service [ 6.008011] Initializing XFRM netlink socket [ 6.008150] NET: Registered protocol family 10 [ 6.008417] Segment Routing with IPv6 [ 6.008434] NET: Registered protocol family 17 [ 6.008976] registered taskstats version 1 [ 6.009008] zswap: loaded using pool lzo/zbud [ 6.009141] pstore: Using crash dump compression: deflate [ 6.013169] Key type big_key registered [ 6.013328] rtc-generic rtc-generic: setting system clock to 2020-03-14T08:02:40 UTC (1584172960) [ 6.014708] Freeing unused kernel memory: 4992K [ 6.014713] Kernel memory protection not selected by kernel config. [ 6.014718] Run /init as init process [ 6.023848] 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) [ 6.024035] systemd[1]: Detected architecture ppc64-le. [ 6.024041] systemd[1]: Running in initial RAM disk. Welcome to Red Hat Enterprise Linux 8.1 Beta (Ootpa) dracut-049-26.git20190806.el8 (Initramfs)! [ 6.075728] systemd[1]: Set hostname to . [ 6.128043] random: systemd: uninitialized urandom read (16 bytes read) [ 6.128067] systemd[1]: Reached target Timers. [ OK ] Reached target Timers. [ 6.128205] random: systemd: uninitialized urandom read (16 bytes read) [ 6.128261] systemd[1]: Listening on udev Kernel Socket. [ OK ] Listening on udev Kernel Socket. [ 6.128324] random: systemd: uninitialized urandom read (16 bytes read) [ 6.128391] systemd[1]: Listening on udev Control Socket. [ OK ] Listening on udev Control Socket. [ 6.128524] systemd[1]: Listening on Journal Socket. [ OK ] Listening on Journal Socket. [ 6.129551] BUG: Kernel NULL pointer dereference on read at 0x000073b0 [ 6.129557] Faulting instruction address: 0xc0000000003d5d44 [ 6.129562] Oops: Kernel access of bad area, sig: 11 [#1] [ 6.129567] LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA pSeries [ 6.129571] Modules linked in: [ 6.129576] CPU: 10 PID: 1 Comm: systemd Not tainted 5.6.0-rc5-next-20200313-autotest+ #2 [ 6.129581] NIP: c0000000003d5d44 LR: c0000000003d62e4 CTR: 0000000000000000 [ 6.129587] REGS: c0000008b37836d0 TRAP: 0300 Not tainted (5.6.0-rc5-next-20200313-autotest+) [ 6.129593] MSR: 8000000000009033 CR: 24004844 XER: 00000000 [ 6.129600] CFAR: c00000000000dec4 DAR: 00000000000073b0 DSISR: 40000000 IRQMASK: 1 [ 6.129600] GPR00: c0000000003d62e4 c0000008b3783960 c00000000155e300 c0000008b301f500 [ 6.129600] GPR04: 0000000000000dc0 0000000000000002 c000000000343938 c0000008baa98620 [ 6.129600] GPR08: 00000008b99f0000 0000000000000001 0000000000000000 0000000000000000 [ 6.129600] GPR12: 0000000024004844 c00000001eca1a00 0000000000000000 0000000000000000 [ 6.129600] GPR16: c0000008a3f62048 c000000001595818 c000000001750ca8 0000000000000002 [ 6.129600] GPR20: c000000001750cb8 c000000001624478 0000000fffffffe0 5deadbeef0000122 [ 6.129600] GPR24: 0000000000000001 0000000000000dc0 0000000000000002 c000000000343938 [ 6.129600] GPR28: c0000008b301f500 c0000008baa98620 0000000000000000 c00c00000000d100 [ 6.129647] NIP [c0000000003d5d44] ___slab_alloc+0x1f4/0x760 [ 6.129652] LR [c0000000003d62e4] __slab_alloc+0x34/0x60 [ 6.129656] Call Trace: [ 6.129659] [c0000008b3783960] [c0000000003d5e84] ___slab_alloc+0x334/0x760 (unreliable) [ 6.129666] [c0000008b3783a40] [c0000000003d62e4] __slab_alloc+0x34/0x60 [ 6.129671] [c0000008b3783a70] [c0000000003d76f0] __kmalloc_node+0x110/0x490 [ 6.129677] [c0000008b3783af0] [c000000000343938] kvmalloc_node+0x58/0x110 [ 6.129683] [c0000008b3783b30] [c0000000003ffb84] mem_cgroup_css_online+0x104/0x270 [ 6.129689] [c0000008b3783b90] [c000000000234d88] online_css+0x48/0xd0 [ 6.129695] [c0000008b3783bc0] [c00000000023de5c] cgroup_apply_control_enable+0x2ec/0x4d0 [ 6.129701] [c0000008b3783ca0] [c000000000241678] cgroup_mkdir+0x228/0x5f0 [ 6.129706] [c0000008b3783d10] [c0000000005201a0] kernfs_iop_mkdir+0x90/0xf0 [ 6.129713] [c0000008b3783d50] [c00000000043e240] vfs_mkdir+0x110/0x230 [ 6.129718] [c0000008b3783da0] [c000000000441d20] do_mkdirat+0xb0/0x1a0 [ 6.129724] [c0000008b3783e20] [c00000000000b278] system_call+0x5c/0x68 [ 6.129728] Instruction dump: [ 6.129731] 7c421378 e95f0000 714a0001 4082fff0 4bffff64 60000000 60000000 faa10088 [ 6.129738] 3ea2000c 3ab56178 7b4a1f24 7d55502a 2faa0000 409e0394 3d02002a [ 6.129746] ---[ end trace fb1a7e13ad04058f ]--- [ 6.131789] [ 7.131801] Kernel panic - not syncing: Fatal exception [ 7.138925] ------------[ cut here ]------------ [ 7.138935] WARNING: CPU: 10 PID: 1 at drivers/tty/vt/vt.c:4266 do_unblank_screen+0x190/0x250 [ 7.138943] Modules linked in: [ 7.138949] CPU: 10 PID: 1 Comm: systemd Tainted: G D 5.6.0-rc5-next-20200313-autotest+ #2 [ 7.138958] NIP: c0000000006ec1c0 LR: c0000000006ec1ac CTR: c000000000b7d410 [ 7.138966] REGS: c0000008b37831b0 TRAP: 0700 Tainted: G D (5.6.0-rc5-next-20200313-autotest+) [ 7.138975] MSR: 8000000000021033 CR: 28002242 XER: 2004000c [ 7.138986] CFAR: c0000000001c67d8 IRQMASK: 3 [ 7.138986] GPR00: c0000000006ec1ac c0000008b3783440 c00000000155e300 0000000000000000 [ 7.138986] GPR04: 0000000000000003 c0000008aea8a00e 0000000000001dd7 c0000008b3783380 [ 7.138986] GPR08: c0000000014234e0 0000000000000000 0000000000000000 c0000008b37831ff [ 7.138986] GPR12: 0000000028002448 c00000001eca1a00 0000000000000000 0000000000000000 [ 7.138986] GPR16: c0000008a3f62048 c000000001595818 c000000001750ca8 0000000000000002 [ 7.138986] GPR20: c000000001750cb8 c000000001624478 0000000fffffffe0 5deadbeef0000122 [ 7.138986] GPR24: 0000000000000001 0000000000000dc0 c00000000142c5b0 c000000000343938 [ 7.138986] GPR28: c000000001636f58 c000000001636f80 0000000000000000 c000000001745a88 [ 7.139053] NIP [c0000000006ec1c0] do_unblank_screen+0x190/0x250 [ 7.139060] LR [c0000000006ec1ac] do_unblank_screen+0x17c/0x250 [ 7.139067] Call Trace: [ 7.139071] [c0000008b3783440] [c0000000006ec1dc] do_unblank_screen+0x1ac/0x250 (unreliable) [ 7.139082] [c0000008b37834c0] [c00000000013caa4] panic+0x1e8/0x414 [ 7.139091] [c0000008b3783560] [c00000000002a70c] oops_end+0x1ac/0x1b0 [ 7.139099] [c0000008b37835e0] [c0000000000848a0] bad_page_fault+0x190/0x1e0 [ 7.139108] [c0000008b3783660] [c00000000000a8a4] handle_page_fault+0x2c/0x30 [ 7.139118] --- interrupt: 300 at ___slab_alloc+0x1f4/0x760 [ 7.139118] LR = __slab_alloc+0x34/0x60 [ 7.139128] [c0000008b3783960] [c0000000003d5e84] ___slab_alloc+0x334/0x760 (unreliable) [ 7.139137] [c0000008b3783a40] [c0000000003d62e4] __slab_alloc+0x34/0x60 [ 7.139145] [c0000008b3783a70] [c0000000003d76f0] __kmalloc_node+0x110/0x490 [ 7.139153] [c0000008b3783af0] [c000000000343938] kvmalloc_node+0x58/0x110 [ 7.139162] [c0000008b3783b30] [c0000000003ffb84] mem_cgroup_css_online+0x104/0x270 [ 7.139171] [c0000008b3783b90] [c000000000234d88] online_css+0x48/0xd0 [ 7.139178] [c0000008b3783bc0] [c00000000023de5c] cgroup_apply_control_enable+0x2ec/0x4d0 [ 7.139187] [c0000008b3783ca0] [c000000000241678] cgroup_mkdir+0x228/0x5f0 [ 7.139196] [c0000008b3783d10] [c0000000005201a0] kernfs_iop_mkdir+0x90/0xf0 [ 7.139205] [c0000008b3783d50] [c00000000043e240] vfs_mkdir+0x110/0x230 [ 7.139213] [c0000008b3783da0] [c000000000441d20] do_mkdirat+0xb0/0x1a0 [ 7.139221] [c0000008b3783e20] [c00000000000b278] system_call+0x5c/0x68 [ 7.139227] Instruction dump: [ 7.139232] 4e800020 60000000 60000000 60000000 7c0802a6 f8010090 4bada621 60000000 [ 7.139243] 813f0000 7d231b78 2f830000 409e0034 <0fe00000> e8010090 7c0803a6 4bfffeac [ 7.139254] ---[ end trace fb1a7e13ad040590 ]--- [ 7.139260] Rebooting in 10 seconds.. --Apple-Mail=_4D8EC7C3-2942-4D63-9380-D3F40A3E8B3E--