Comment # 2
on bug 1183824
from Ang
This is the dmesg output with kernel 5.11.6-3. Because this happens with both
kernels, I now feel as though it may not be specifically a kernel problem. To
be clear, the system boots up all the way to the graphical interface and
appears to function, although greatly reduced performance with only one CPU
online.
[ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[ 0.000000] Linux version 5.11.6-3-default (geeko@buildhost) (gcc (SUSE
Linux) 10.2.1 20210303 [revision 85977f624a34eac309f9d77a58164553dfc82975], GNU
ld (GNU Binutils; openSUSE Tumbleweed) 2.36.1.20210301-2) #1 SMP Thu Mar 11
16:11:36 UTC 2021 (7358b30)
[ 0.000000] Machine model: Raspberry Pi 3 Model B Rev 1.2
[ 0.000000] efi: EFI v2.80 by Das U-Boot
[ 0.000000] efi: RTPROP=0x3cb28040 SMBIOS=0x3cb24000 MEMRESERVE=0x2a803040
[ 0.000000] Reserved memory: created CMA memory pool at 0x0000000038800000,
size 64 MiB
[ 0.000000] OF: reserved mem: initialized node linux,cma, compatible id
shared-dma-pool
[ 0.000000] NUMA: No NUMA configuration found
[ 0.000000] NUMA: Faking a node at [mem
0x0000000000000000-0x000000003dffffff]
[ 0.000000] NUMA: NODE_DATA [mem 0x3ddd7480-0x3dddbfff]
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x0000000000000000-0x000000003dffffff]
[ 0.000000] DMA32 empty
[ 0.000000] Normal empty
[ 0.000000] Device empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000000000000-0x000000003cb1bfff]
[ 0.000000] node 0: [mem 0x000000003cb1c000-0x000000003cb22fff]
[ 0.000000] node 0: [mem 0x000000003cb23000-0x000000003cb23fff]
[ 0.000000] node 0: [mem 0x000000003cb24000-0x000000003cb24fff]
[ 0.000000] node 0: [mem 0x000000003cb25000-0x000000003cb26fff]
[ 0.000000] node 0: [mem 0x000000003cb27000-0x000000003cb2afff]
[ 0.000000] node 0: [mem 0x000000003cb2b000-0x000000003cb2bfff]
[ 0.000000] node 0: [mem 0x000000003cb2c000-0x000000003cb30fff]
[ 0.000000] node 0: [mem 0x000000003cb31000-0x000000003cb31fff]
[ 0.000000] node 0: [mem 0x000000003cb32000-0x000000003cb32fff]
[ 0.000000] node 0: [mem 0x000000003cb33000-0x000000003cb33fff]
[ 0.000000] node 0: [mem 0x000000003cb34000-0x000000003cb34fff]
[ 0.000000] node 0: [mem 0x000000003cb35000-0x000000003cb35fff]
[ 0.000000] node 0: [mem 0x000000003cb36000-0x000000003cb36fff]
[ 0.000000] node 0: [mem 0x000000003cb37000-0x000000003cb38fff]
[ 0.000000] node 0: [mem 0x000000003cb39000-0x000000003cb39fff]
[ 0.000000] node 0: [mem 0x000000003cb3a000-0x000000003df3ffff]
[ 0.000000] node 0: [mem 0x000000003df40000-0x000000003df4ffff]
[ 0.000000] node 0: [mem 0x000000003df50000-0x000000003dffffff]
[ 0.000000] Zeroed struct page in unavailable ranges: 37 pages
[ 0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x000000003dffffff]
[ 0.000000] On node 0 totalpages: 253952
[ 0.000000] DMA zone: 3968 pages used for memmap
[ 0.000000] DMA zone: 0 pages reserved
[ 0.000000] DMA zone: 253952 pages, LIFO batch:63
[ 0.000000] percpu: Embedded 33 pages/cpu s95512 r8192 d31464 u135168
[ 0.000000] pcpu-alloc: s95512 r8192 d31464 u135168 alloc=33*4096
[ 0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3
[ 0.000000] Detected VIPT I-cache on CPU0
[ 0.000000] CPU features: detected: ARM erratum 845719
[ 0.000000] CPU features: kernel page table isolation forced ON by KASLR
[ 0.000000] CPU features: detected: Kernel page table isolation (KPTI)
[ 0.000000] CPU features: detected: ARM erratum 843419
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 249984
[ 0.000000] Policy zone: DMA
[ 0.000000] Kernel command line: BOOT_IMAGE=/boot/Image-5.11.6-3-default
root=UUID=9662fa64-c149-4230-97a1-b6855c52cdc6 splash=silent mitigations=auto
quiet
[ 0.000000] Dentry cache hash table entries: 131072 (order: 8, 1048576
bytes, linear)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 7, 524288 bytes,
linear)
[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[ 0.000000] Memory: 871492K/1015808K available (13824K kernel code, 3346K
rwdata, 10036K rodata, 6720K init, 9513K bss, 78780K reserved, 65536K
cma-reserved)
[ 0.000000] random: get_random_u64 called from
__kmem_cache_create+0x3c/0x5fc with crng_init=0
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[ 0.000000] ftrace: allocating 44230 entries in 173 pages
[ 0.000000] ftrace: allocated 173 pages with 5 groups
[ 0.000000] rcu: Hierarchical RCU implementation.
[ 0.000000] rcu: RCU event tracing is enabled.
[ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=480 to nr_cpu_ids=4.
[ 0.000000] Trampoline variant of Tasks RCU enabled.
[ 0.000000] Rude variant of Tasks RCU enabled.
[ 0.000000] Tracing variant of Tasks RCU enabled.
[ 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=4
[ 0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[ 0.000000] arch_timer: cp15 timer(s) running at 19.20MHz (phys).
[ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff
max_cycles: 0x46d987e47, max_idle_ns: 440795202767 ns
[ 0.000001] sched_clock: 56 bits at 19MHz, resolution 52ns, wraps every
4398046511078ns
[ 0.000512] Console: colour dummy device 80x25
[ 0.000585] printk: console [tty0] enabled
[ 0.000735] Calibrating delay loop (skipped), value calculated using timer
frequency.. 38.40 BogoMIPS (lpj=192000)
[ 0.000762] pid_max: default: 32768 minimum: 301
[ 0.000915] LSM: Security Framework initializing
[ 0.001059] AppArmor: AppArmor initialized
[ 0.001287] Mount-cache hash table entries: 2048 (order: 2, 16384 bytes,
linear)
[ 0.001320] Mountpoint-cache hash table entries: 2048 (order: 2, 16384
bytes, linear)
[ 0.004442] rcu: Hierarchical SRCU implementation.
[ 0.008278] Remapping and enabling EFI services.
[ 0.008972] smp: Bringing up secondary CPUs ...
[ 5.042494] CPU1: failed to come online
[ 5.042525] CPU1: failed in unknown state : 0x0
[ 10.085063] CPU2: failed to come online
[ 10.085091] CPU2: failed in unknown state : 0x0
[ 15.127622] CPU3: failed to come online
[ 15.127648] CPU3: failed in unknown state : 0x0
[ 15.127739] smp: Brought up 1 node, 1 CPU
[ 15.127753] SMP: Total of 1 processors activated.
[ 15.127769] CPU features: detected: 32-bit EL0 Support
[ 15.127784] CPU features: detected: CRC32 instructions
[ 15.127799] CPU features: detected: 32-bit EL1 Support
[ 15.128009] CPU features: emulated: Privileged Access Never (PAN) using
TTBR0_EL1 switching
[ 15.145726] CPU: All CPU(s) started at EL2
[ 15.145837] alternatives: patching kernel code
[ 15.148546] devtmpfs: initialized
[ 15.160204] Registered cp15_barrier emulation handler
[ 15.160236] Registered setend emulation handler
[ 15.160252] KASLR enabled
[ 15.160675] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff,
max_idle_ns: 19112604462750000 ns
[ 15.160715] futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
[ 15.165650] pinctrl core: initialized pinctrl subsystem
[ 15.167488] SMBIOS 3.0 present.
[ 15.167513] DMI: /, BIOS 2021.01 03/04/2021
lscpu reports:
Architecture: aarch64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 4
On-line CPU(s) list: 0
Off-line CPU(s) list: 1-3
Thread(s) per core: 1
Core(s) per socket: 1
Socket(s): 1
NUMA node(s): 1
Vendor ID: ARM
Model: 4
Model name: Cortex-A53
Stepping: r0p4
CPU max MHz: 1200.0000
CPU min MHz: 600.0000
BogoMIPS: 38.40
NUMA node0 CPU(s): 0
Vulnerability Itlb multihit: Not affected
Vulnerability L1tf: Not affected
Vulnerability Mds: Not affected
Vulnerability Meltdown: Not affected
Vulnerability Spec store bypass: Not affected
Vulnerability Spectre v1: Mitigation; __user pointer sanitization
Vulnerability Spectre v2: Not affected
Vulnerability Srbds: Not affected
Vulnerability Tsx async abort: Not affected
Flags: fp asimd evtstrm crc32 cpuid