WARNING at lib/percpu-refcount.c:203 __percpu_ref_switch_mode

Issue

• WARNING: CPU: 2 PID: 2991 at lib/percpu-refcount.c:203 __percpu_ref_switch_mode

[   15.080416] WARNING: CPU: 2 PID: 2991 at lib/percpu-refcount.c:203 __percpu_ref_switch_mode+0x2f8/0x320
[   15.080477] CPU: 2 PID: 2991 Comm: mdX_raid1 Not tainted 4.18.0-372.26.1.el8_6.ppc64le #1
[   15.080481] NIP:  c0000000007f6d78 LR: c0000000007f6e84 CTR: c0000000001cab40
[   15.080485] REGS: c00000006c943790 TRAP: 0700   Not tainted  (4.18.0-372.26.1.el8_6.ppc64le)
[   15.080489] MSR:  800000000282b033 <SF,VEC,VSX,EE,FP,ME,IR,DR,RI,LE>  CR: 24000204  XER: 00000000
[   15.080499] CFAR: c0000000007f6c54 IRQMASK: 1 
               GPR00: c0000000007f6e84 c00000006c943a20 c000000002163f00 c0000000031a63a8 
               GPR04: 0000000000000000 c00000006c943aa8 00e10f5d5ab86065 c00000000ffcde80 
               GPR08: 0000000000000000 0000000000000000 0000000000000001 0000000000000001 
               GPR12: 0000000000000000 c00000000ffcde80 c0000000001aaf38 c000000008cf0440 
               GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 
               GPR20: 0000000000000000 0000000000000000 0000000000000000 c0000000023695f8 
               GPR24: c0000000011c6c98 c000000056354800 c000000000b634a0 0000000000000000 
               GPR28: c000000008cba690 0000000000000000 d001f7fa048845c0 c0000000031a63a8 
[   15.080540] NIP [c0000000007f6d78] __percpu_ref_switch_mode+0x2f8/0x320
[   15.080545] LR [c0000000007f6e84] percpu_ref_switch_to_percpu+0x54/0x80
[   15.080549] Call Trace:
[   15.080551] [c00000006c943a20] [c00000006c943a70] 0xc00000006c943a70 (unreliable)
[   15.080556] [c00000006c943aa0] [c0000000007f6e84] percpu_ref_switch_to_percpu+0x54/0x80
[   15.080561] [c00000006c943ae0] [c000000000b616e8] set_in_sync+0x108/0x160
[   15.080567] [c00000006c943b10] [c000000000b71200] md_check_recovery+0x620/0x7a0
[   15.080571] [c00000006c943ba0] [d000000003cb7c9c] raid1d+0x84/0x1e70 [raid1]
[   15.080578] [c00000006c943d30] [c000000000b63584] md_thread+0xe4/0x280
[   15.080582] [c00000006c943db0] [c0000000001ab0c0] kthread+0x190/0x1a0
[   15.080588] [c00000006c943e20] [c00000000000b7d8] ret_from_kernel_thread+0x5c/0x64