NMI watchdog: BUG: soft lockup - CPU#19 stuck for 22s! [ll_cfg_requeue:3896]
Modules linked in: tcp_diag udp_diag inet_diag osc(OE) mgc(OE) lustre(OE) lmv(OE) fld(OE) mdc(OE) fid(OE) lov(OE) ko2iblnd(OE) ptlrpc(OE) obdclass(OE) lnet(OE) sha512_ssse3 sha512_generic nfs_layout_nfsv41_files crypto_null libcfs(OE) dell_rbu rpcsec_gss_krb5 nfsv4 dns_resolver nfs fscache rpcrdma ib_isert iscsi_target_mod target_core_mod ib_iser libiscsi scsi_transport_iscsi ib_ipoib rdma_ucm ib_ucm ib_uverbs ib_umad rdma_cm ib_cm iw_cm ipmi_devintf iTCO_wdt iTCO_vendor_support dcdbas intel_powerclamp coretemp intel_rapl iosf_mbi kvm_intel kvm irqbypass pcspkr sg mei_me sb_edac mei edac_core lpc_ich shpchp ipmi_si ipmi_msghandler acpi_power_meter nfsd auth_rpcgss nfs_acl lockd grace ip_tables ext4 mbcache jbd2 sd_mod crc_t10dif crct10dif_generic mxm_wmi crct10dif_pclmul crct10dif_common
crc32_pclmul crc32c_intel ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper drm_kms_helper cryptd syscopyarea sysfillrect sysimgblt fb_sys_fops hfi1(OE) ttm rdmavt(OE) ib_core drm ahci i2c_algo_bit dca libahci tg3 i2c_core libata ptp megaraid_sas pps_core fjes wmi cdc_ether usbnet mii sunrpc dm_mirror dm_region_hash dm_log dm_mod
CPU: 19 PID: 3896 Comm: ll_cfg_requeue Tainted: G           OEL ------------   3.10.0-514.10.2.el7.x86_64 #1
Hardware name: Dell Inc. PowerEdge R630/0CNCJW, BIOS 2.13.0 05/14/2021
task: ffff88181bbfde20 ti: ffff88181b6a0000 task.ti: ffff88181b6a0000
RIP: 0010:[<ffffffff8168de57>]  [<ffffffff8168de57>] _raw_spin_lock+0x37/0x50
RSP: 0018:ffff88181b6a3c18  EFLAGS: 00000202
RAX: 0000000000001e91 RBX: 0000000000000000 RCX: 0000000000002e50
RDX: 0000000000002e56 RSI: 0000000000002e56 RDI: ffff88301c9ed2b0
RBP: ffff88181b6a3c18 R08: 0000000000000066 R09: 0000000000000000
R10: ffff88301e059ae0 R11: ffffea00620c1b00 R12: ffff8827b4fec500
R13: 0000000000000000 R14: ffff8827b4fec500 R15: ffff8827b4fec500
FS:  0000000000000000(0000) GS:ffff88301e040000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8e7e8f28f0 CR3: 0000002ecefc8000 CR4: 00000000001407e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Stack:
ffff88181b6a3c40 ffffffffa0c4eeb8 ffffffffa0a24887 000000000000000d
ffff882e98998000 ffff88181b6a3c90 ffffffffa0d3abdc ffff88181b6a3c98
ffffffffa09aeca0 0000000000000000 0000000000000003 ffff882e8121ad90
Call Trace:
[<ffffffffa0c4eeb8>] sptlrpc_conf_client_adapt+0x78/0x260 [ptlrpc]
[<ffffffffa0d3abdc>] mdc_set_info_async+0x43c/0x820 [mdc]
[<ffffffffa09aeca0>] ? llog_open+0x260/0x3f0 [obdclass]
[<ffffffffa09ce806>] class_notify_sptlrpc_conf+0x246/0x4e0 [obdclass]
[<ffffffffa0d65faa>] mgc_process_cfg_log+0x64a/0xd30 [mgc]
[<ffffffffa0d6bd70>] mgc_process_log+0x320/0xca0 [mgc]
[<ffffffffa0d69a00>] ? mgc_setup+0x620/0x620 [mgc]
[<ffffffffa0beb930>] ? ldlm_expired_completion_wait+0x370/0x370 [ptlrpc]
[<ffffffffa0d6e648>] mgc_requeue_thread+0x2b8/0x890 [mgc]
[<ffffffff810c5080>] ? wake_up_state+0x20/0x20
[<ffffffffa0d6e390>] ? mgc_process_config+0x12e0/0x12e0 [mgc]
[<ffffffff810b06ff>] kthread+0xcf/0xe0
[<ffffffff810b0630>] ? kthread_create_on_node+0x140/0x140
[<ffffffff81696a58>] ret_from_fork+0x58/0x90
[<ffffffff810b0630>] ? kthread_create_on_node+0x140/0x140
Code: c1 07 89 c2 c1 ea 10 66 39 c2 75 01 c3 55 83 e2 fe 0f b7 f2 48 89 e5 b8 00 80 00 00 eb 0d 66 0f 1f 44 00 00 f3 90 83 e8 01 74 0a <0f> b7 0f 66 39 ca 75 f1 5d c3 0f 1f 80 00 00 00 00 eb d9 66 0f