What is the meaning of the message "kernel: WARNING: CPU: 0 PID: 0 at arch/x86/kernel/fpu/xstate.c:656 do_extra_xstate_size_checks+0x291/0x44c"

Issue

• What is the meaning of the following message:

kernel: ------------[ cut here ]------------
kernel: XSAVE consistency problem, dumping leaves
kernel: WARNING: CPU: 0 PID: 0 at arch/x86/kernel/fpu/xstate.c:656 do_extra_xstate_size_checks+0x291/0x44c
kernel: Modules linked in:
kernel: CPU: 0 PID: 0 Comm: swapper Not tainted 4.18.0-305.el8.x86_64 #1
kernel: RIP: 0010:do_extra_xstate_size_checks+0x291/0x44c
kernel: Code: 49 1a e2 01 0f 84 a9 01 00 00 80 3d db 1d 7a 01 00 0f 85 8e 01 00 00 48 c7 c7 f0 71 6a b2 c6 05 c7 1d 7a 01 01 e8 54 0d 0b 00 <0f> 0b e9 74 01 00 00 84 c0 0f 84 6c ff ff ff eb 0a 84 c0 0f 84 6b
kernel: RSP: 0000:ffffffffb2c03da8 EFLAGS: 00010086 ORIG_RAX: 0000000000000000
kernel: RAX: 0000000000000000 RBX: 000000000000000b RCX: 0000000000000029
kernel: RDX: 0000000000000009 RSI: ffffffffb34b8f00 RDI: 0000000000000046
kernel: RBP: 0000000000000008 R08: 657661656c20676e R09: 73657661656c2067
kernel: R10: 656c626f72702079 R11: 69706d7564202c6d R12: 0000000000000988
kernel: R13: ffffffffb2c03db0 R14: ffffffffb2c03dac R15: ffffffffb2c03da8
kernel: FS:  0000000000000000(0000) GS:ffffffffb31d3000(0000) knlGS:0000000000000000
kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kernel: CR2: ffff88800e52d000 CR3: 0000000135a7c000 CR4: 00000000000406a0
kernel: Call Trace:
kernel: ? do_clear_cpu_cap+0xf4/0x110
kernel: ? fpu__init_system_xstate+0x1c4/0x597
kernel: ? 0xffffffffb1600000
kernel: ? fpu__init_system+0x208/0x234
kernel: ? 0xffffffffb1600000
kernel: ? early_cpu_init+0x332/0x34f
kernel: ? setup_arch+0xe0/0xde0
kernel: ? printk+0x58/0x6f
kernel: ? start_kernel+0x63/0x538
kernel: ? x86_family+0x5/0x20
kernel: ? load_ucode_bsp+0x42/0x12e
kernel: ? secondary_startup_64_no_verify+0xc2/0xcb
kernel: random: get_random_bytes called from print_oops_end_marker+0x26/0x40 with crng_init=0
kernel: ---[ end trace 8e0744433e4587c7 ]---