RHEL8/9: WARNING: kernel/sched/fair.c:3350 update_blocked_averages+0x6af

Solution Verified - Updated -

Issue

  • Below warning messages were noticed:
[Thu Nov 10 21:33:12 2022] infiniband mlx5_1: mlx5_ib_post_send:1392:(pid 1832748): Send SMP MADs is not allowed
[Thu Nov 10 21:33:44 2022] Rounding down aligned max_sectors from 4294967295 to 4294967288
[Thu Nov 10 22:27:25 2022] infiniband mlx5_1: mlx5_ib_post_send:1392:(pid 1883144): Send SMP MADs is not allowed
[Fri Nov 11 02:36:53 2022] -----------[ cut here ]-----------
[Fri Nov 11 02:36:53 2022] cfs_rq->avg.load_avg || cfs_rq->avg.util_avg || cfs_rq->avg.runnable_avg
[Fri Nov 11 02:36:53 2022] WARNING: CPU: 1 PID: 2054159 at kernel/sched/fair.c:3350 update_blocked_averages+0x6af/0x6e0
[Fri Nov 11 02:36:53 2022] Modules linked in: iscsi_target_mod target_core_mod binfmt_misc overlay tcp_diag inet_diag rdma_ucm(OE) rdma_cm(OE) iw_cm(OE) ib_ipoib(OE) ib_cm(OE) ib_umad(OE) mlx5_ib(OE) mlx5_core(OE) mlxdevm(OE) ib_uverbs(OE) ib_core(OE) mlx_compat(OE) psample mlxfw(OE) pci_hyperv_intf joydev xt_CHECKSUM ipt_MASQUERADE xt_conntrack ipt_REJECT nf_reject_ipv4 nft_compat nft_counter nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables nfnetlink bridge stp llc uio_pci_generic uio vfio_pci vfio_virqfd vfio_iommu_type1 vfio irqbypass bonding sunrpc vfat fat intel_rapl_msr intel_rapl_common i10nm_edac nfit libnvdimm x86_pkg_temp_thermal intel_powerclamp dell_smbios intel_pmt_crashlog intel_pmt_telemetry coretemp intel_pmt_class iTCO_wdt iTCO_vendor_support wmi_bmof dell_wmi_descriptor crct10dif_pclmul crc32_pclmul ghash_clmulni_intel dcdbas rapl intel_uncore qat_4xxx intel_qat pcspkr intel_th_gth isst_if_mmio isst_if_mbox_pci idxd isst_if_common dh_generic intel_pmt
[Fri Nov 11 02:36:53 2022] intel_th_pci mei_me crc8 ipmi_ssif intel_th i2c_i801 mei i2c_ismt wmi acpi_ipmi ipmi_si acpi_power_meter knem(OE) xfs libcrc32c mgag200 drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops tls ahci nvme libahci nvme_core drm crc32c_intel libata tg3 ice(OE) t10_pi i2c_algo_bit pinctrl_emmitsburg dm_mirror dm_region_hash dm_log dm_mod xpmem(OE) ipmi_devintf ipmi_msghandler fuse [last unloaded: mst_pciconf]
[Fri Nov 11 02:36:53 2022] Red Hat flags: eBPF/rawtrace
[Fri Nov 11 02:36:53 2022] CPU: 1 PID: 2054159 Comm: kworker/u230:0 Kdump: loaded Tainted: G OE --------- - - 4.18.0-372.9.1.el8.x86_64 #1
[Fri Nov 11 02:36:53 2022] Hardware name:Dell
[Fri Nov 11 02:36:53 2022] Workqueue: 0x0 (ib-comp-unb-wq)
[Fri Nov 11 02:36:53 2022] RIP: 0010:update_blocked_averages+0x6af/0x6e0
[Fri Nov 11 02:36:53 2022] Code: 50 a8 2d b2 c6 05 74 01 c3 01 01 e8 44 05 fc ff 0f 0b e9 be f9 ff ff 48 c7 c7 70 ac 2d b2 c6 05 56 01 c3 01 01 e8 2a 05 fc ff <0f> 0b 8b 93 38 01 00 00 e9 04 fc ff ff 80 3d 42 01 c3 01 00 75 93
[Fri Nov 11 02:36:53 2022] RSP: 0018:ff78d7af8decbd68 EFLAGS: 00010086
[Fri Nov 11 02:36:53 2022] RAX: 0000000000000000 RBX: ff4cc37effa6aec0 RCX: 0000000000000007
[Fri Nov 11 02:36:53 2022] RDX: 0000000000000007 RSI: 00000000ffff7fff RDI: ff4cc37effa56750
[Fri Nov 11 02:36:53 2022] RBP: ff4cc37effa6ae40 R08: 0000000000000000 R09: c0000000ffff7fff
[Fri Nov 11 02:36:53 2022] R10: 0000000000000001 R11: ff78d7af8decbb80 R12: ff4cc37effa6b000
[Fri Nov 11 02:36:53 2022] R13: ff4cc37effa6b668 R14: 0000000000000000 R15: 0000000000000000
[Fri Nov 11 02:36:53 2022] FS: 0000000000000000(0000) GS:ff4cc37effa40000(0000) knlGS:0000000000000000
[Fri Nov 11 02:36:53 2022] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[Fri Nov 11 02:36:53 2022] CR2: 00000000000000b0 CR3: 0000000758210003 CR4: 0000000000771ee0
[Fri Nov 11 02:36:53 2022] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[Fri Nov 11 02:36:53 2022] DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400
[Fri Nov 11 02:36:53 2022] PKRU: 55555554
[Fri Nov 11 02:36:53 2022] Call Trace:
[Fri Nov 11 02:36:53 2022] ? entry_SYSCALL_64_after_hwframe+0xb8/0xca
[Fri Nov 11 02:36:53 2022] newidle_balance+0xcb/0x3c0
[Fri Nov 11 02:36:53 2022] ? __switch_to_asm+0x41/0x70
[Fri Nov 11 02:36:53 2022] pick_next_task_fair+0x3e/0x3b0
[Fri Nov 11 02:36:53 2022] __schedule+0x146/0x830
[Fri Nov 11 02:36:53 2022] ? create_worker+0x1a0/0x1a0
[Fri Nov 11 02:36:53 2022] schedule+0x35/0xa0
[Fri Nov 11 02:36:53 2022] worker_thread+0xb7/0x390
[Fri Nov 11 02:36:53 2022] ? create_worker+0x1a0/0x1a0
[Fri Nov 11 02:36:53 2022] kthread+0x10a/0x120
[Fri Nov 11 02:36:53 2022] ? set_kthread_struct+0x40/0x40
[Fri Nov 11 02:36:53 2022] ret_from_fork+0x1f/0x40
[Fri Nov 11 02:36:53 2022] --[ end trace 13d8890bdbff31e3 ]--
[Fri Nov 11 08:28:28 2022] perf: interrupt took too long (6165 > 6160), lowering kernel.perf_event_max_sample_rate to 32000

Environment

  • Red Hat Enterprise Linux 9.0
    • kernel-5.14.0-70.22.1.el9_0
  • Red Hat Enterprise Linux 8.6
    • Kernel 4.18.0-372.9.1.el8

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