run opensuse-Tumbleweed-x86_64-20240514-DVD@64bit-with-ltp.qcow2 with following
qemu parameter.
qemu-system-x86_64 -smp cores=4 -m 1024 -s -nodefaults -device virtio-rng-pci
-nographic -serial mon:stdio -display none \
-drive file=$1,if=virtio \
-device e1000,netdev=net0 -netdev user,id=net0,hostfwd=tcp::5555-:22
susetest:/sys/kernel/debug/tracing # echo function_graph > current_tracer
[ 271.226973][ T0] ------------[ cut here ]------------
[ 271.229804][ T0] RCU not on for: amd_e400_idle+0x4/0x30
[ 271.229804][ T0] WARNING: CPU: 0 PID: 0 at
include/linux/trace_recursion.h:162 prepare_ftrace_return+0x15e/0x170
[ 271.229804][ T0] Modules linked in: joydev st sr_mod cdrom nls_iso8859_1
nls_cp437 exfat vfat fat bcachefs lz4_compress lz4hc_compress xfs ext4 mbcacg
[ 271.229804][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted
6.8.9-1-default #1 openSUSE Tumbleweed bdefa5c8548782cd7f40c96ed6ab2e9359be7133
[ 271.229804][ T0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
BIOS rel-1.15.0-6-gb1b30830-rebuilt.opensuse.org 04/01/2014
[ 271.229804][ T0] RIP: 0010:prepare_ftrace_return+0x15e/0x170
[ 271.229804][ T0] Code: 8b 04 25 40 a1 03 00 48 81 a0 08 23 00 00 ff ff fe
ff eb a2 4c 89 e6 48 c7 c7 57 30 7b 8e c6 05 eb a6 00 02 01 e8 02 36 03 00 0
[ 271.229804][ T0] RSP: 0018:ffffffff8f003d90 EFLAGS: 00000082
[ 271.229804][ T0] RAX: 0000000000000000 RBX: ffffffff8f003e78 RCX:
0000000000000027
[ 271.229804][ T0] RDX: 00000000000a414d RSI: 0000000000000001 RDI:
ffff9b67bea27800
[ 271.229804][ T0] RBP: ffffffff8f003db8 R08: 0000000000000000 R09:
ffffffff8f003c38
[ 271.229804][ T0] R10: ffffffff8f003c30 R11: 0000000000000003 R12:
ffffffff8d2552b4
[ 271.229804][ T0] R13: 0000000000000000 R14: ffffffff8f010980 R15:
0000000000000000
[ 271.229804][ T0] FS: 0000000000000000(0000) GS:ffff9b67bea00000(0000)
knlGS:0000000000000000
[ 271.229804][ T0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 271.229804][ T0] CR2: 000055f646b2ba80 CR3: 0000000004acc000 CR4:
00000000000006f0
[ 271.229804][ T0] Call Trace:
[ 271.229804][ T0] <TASK>
[ 271.229804][ T0] ? prepare_ftrace_return+0x15e/0x170
[ 271.229804][ T0] ? ftrace_stub_direct_tramp+0x20/0x20
[ 271.229804][ T0] ? __warn+0x81/0x130
[ 271.229804][ T0] ? prepare_ftrace_return+0x15e/0x170
[ 271.229804][ T0] ? report_bug+0x171/0x1a0
[ 271.229804][ T0] ? handle_bug+0x3c/0x80
[ 271.229804][ T0] ? exc_invalid_op+0x17/0x70
[ 271.229804][ T0] ? asm_exc_invalid_op+0x1a/0x20
[ 271.229804][ T0] ? amd_e400_idle+0x4/0x30
[ 271.229804][ T0] ? prepare_ftrace_return+0x15e/0x170
[ 271.229804][ T0] joydev_init+0x8b/0xff0 [joydev
0a00000089e2ffff000000002000000000000000]
[ 271.229804][ T0] ? amd_e400_idle+0x9/0x30
[ 271.229804][ T0] amd_e400_idle+0x9/0x30
[ 271.229804][ T0] default_idle_call+0x2c/0xe0
[ 271.229804][ T0] do_idle+0x226/0x270
[ 271.229804][ T0] cpu_startup_entry+0x2a/0x30
[ 271.229804][ T0] rest_init+0xd0/0xd0
[ 271.229804][ T0] arch_call_rest_init+0xe/0x30
[ 271.229804][ T0] start_kernel+0x70b/0xa60
[ 271.229804][ T0] x86_64_start_reservations+0x18/0x30
[ 271.229804][ T0] x86_64_start_kernel+0x96/0xa0
[ 271.229804][ T0] secondary_startup_64_no_verify+0x184/0x18b
[ 271.229804][ T0] </TASK>
[ 271.229804][ T0] ---[ end trace 0000000000000000 ]---