Comment 0 for bug 2030479

Issue found with 5.15.0-1043-realtime on ARM64 node scobee-kernel

[ 1576.641579] ------------[ cut here ]------------
[ 1576.641590] WARNING: CPU: 1 PID: 29 at kernel/sched/core.c:3109 set_task_cpu+0x168/0x214
[ 1576.641612] Modules linked in: binfmt_misc nls_iso8859_1 arm_spe_pmu ipmi_ssif hisi_sec2 acpi_ipmi hisi_zip hisi_hpre ecdh_generic libcurve25519_generic hisi_qm ipmi_si hns_roce_hw_v2 ecc authenc uacce ipmi_devintf ipmi_msghandler hisi_trng_v2 hisi_uncore_hha_pmu hisi_uncore_ddrc_pmu hisi_uncore_l3c_pmu hisi_uncore_pmu cppc_cpufreq sch_fq_codel dm_multipath scsi_dh_rdac scsi_dh_emc scsi_dh_alua ramoops reed_solomon pstore_blk pstore_zone efi_pstore ip_tables x_tables autofs4 btrfs blake2b_generic zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor xor_neon raid6_pq libcrc32c raid1 raid0 multipath linear ses enclosure mlx5_ib ib_uverbs ib_core hibmc_drm drm_vram_helper drm_ttm_helper ttm i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops realtek crct10dif_ce ghash_ce sha2_ce sha256_arm64 sha1_ce mlx5_core cec mlxfw hisi_sas_v3_hw rc_core hns3 psample hisi_sas_main tls hclge drm libsas xhci_pci hnae3 xhci_pci_renesas ahci
[ 1576.641818] scsi_transport_sas spi_dw_mmio gpio_dwapb spi_dw aes_neon_bs aes_neon_blk aes_ce_blk crypto_simd cryptd aes_ce_cipher
[ 1576.641841] CPU: 1 PID: 29 Comm: ksoftirqd/1 Not tainted 5.15.0-1043-realtime #48-Ubuntu
[ 1576.641848] Hardware name: Huawei TaiShan 2280 V2/BC82AMDC, BIOS 2280-V2 CS V3.B160.01 01/15/2020
[ 1576.641852] pstate: 604000c9 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 1576.641858] pc : set_task_cpu+0x168/0x214
[ 1576.641866] lr : detach_tasks+0x138/0x4b0
[ 1576.641873] sp : ffff8000090aba20
[ 1576.641876] x29: ffff8000090aba20 x28: ffff202052e653c0 x27: ffffadf444f2a920
[ 1576.641885] x26: ffffadf4447994c0 x25: ffffadf4447994c0 x24: ffff203f7fb7ffb0
[ 1576.641893] x23: 0000000000000001 x22: ffff203f7fb7f4c0 x21: ffffadf444f27a18
[ 1576.641901] x20: 000000000000004a x19: ffff202052e653c0 x18: 0000000000000000
[ 1576.641909] x17: 0000000000000000 x16: ffffadf443558ad0 x15: 0000000000000000
[ 1576.641916] x14: ffffadf444f5a658 x13: ffffadf444f5a128 x12: 000000000000004a
[ 1576.641924] x11: 0000000000000004 x10: ffffadf444f27b50 x9 : ffffadf44294fdd8
[ 1576.641931] x8 : 000000000000004a x7 : fffffffffffffc00 x6 : 000000000000004a
[ 1576.641939] x5 : 00000000000005ee x4 : 0000000000000400 x3 : 000000000000b67e
[ 1576.641946] x2 : 0000000000000000 x1 : ffffadf443f569b8 x0 : 0000000000000001
[ 1576.641954] Call trace:
[ 1576.641956] set_task_cpu+0x168/0x214
[ 1576.641964] detach_tasks+0x138/0x4b0
[ 1576.641969] load_balance+0x260/0x834
[ 1576.641977] rebalance_domains+0x280/0x3f4
[ 1576.641983] _nohz_idle_balance.constprop.0.isra.0+0x1ec/0x34c
[ 1576.641990] run_rebalance_domains+0x84/0xb0
[ 1576.641997] __do_softirq+0x170/0x468
[ 1576.642003] run_ksoftirqd+0x80/0x150
[ 1576.642008] smpboot_thread_fn+0x260/0x2e4
[ 1576.642015] kthread+0x158/0x16c
[ 1576.642025] ret_from_fork+0x10/0x20
[ 1576.642033] ---[ end trace 0000000000000002 ]---