------------[ cut here ]------------
[   84.917562] WARNING: CPU: 0 PID: 3885 at kernel/trace/trace_functions_graph.c:927 print_graph_entry+0x4d0/0x4e8
[   84.917604] Modules linked in: brcmfmac brcmutil cfg80211 snd_soc_hdmi_codec dw_hdmi_i2s_audio dw_hdmi_cec rockchipdrm hci_uart hantro_vpu dw_hdmi_qp btqca analogix_dp btbcm dw_mipi_dsi v4l2_vp9 drm_dp_aux_bus v4l2_h264 panfrost snd_soc_audio_graph_card snd_soc_spdif_tx bluetooth reset_gpio snd_soc_simple_card v4l2_jpeg dw_hdmi rtc_rk808 v4l2_mem2mem drm_shmem_helper snd_soc_simple_card_utils cec gpu_sched videobuf2_dma_contig rfkill drm_display_helper snd_soc_rockchip_i2s phy_rockchip_pcie videobuf2_memops drm_client_lib pwrseq_core rockchip_saradc videobuf2_v4l2 drm_dma_helper videobuf2_common industrialio_triggered_buffer snd_soc_es8316 drm_kms_helper rockchip_thermal kfifo_buf pcie_rockchip_host coresight_cpu_debug fuse drm backlight ip_tables x_tables
[   84.918560] CPU: 0 UID: 0 PID: 3885 Comm: cat Not tainted 6.15.0-rc6-next-20250515 #1 PREEMPT_RT 
[   84.918585] Hardware name: Radxa ROCK Pi 4B (DT)
[   84.918607] pstate: a0000005 (NzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[   84.918630] pc : print_graph_entry+0x4d0/0x4e8
[   84.918663] lr : print_graph_entry+0x140/0x4e8
[   84.918694] sp : ffff80008815baf0
[   84.918713] x29: ffff80008815bb50 x28: ffff00000afad480 x27: ffff00000afad4a0
[   84.918779] x26: 00000000fffffff8 x25: 0000000000000004 x24: ffff00000afad480
[   84.918845] x23: 0000000000000004 x22: 00000000000006b6 x21: 00000000fefefefe
[   84.918910] x20: ffff0000088b0000 x19: ffff0000088b2090 x18: 0000000000000000
[   84.918976] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000
[   84.919042] x14: 0000000000000001 x13: 0000000000000001 x12: 2d2d2d2d2d2d2d2d
[   84.919107] x11: 2d2d2d2d2d2d2d2d x10: 0000000000000020 x9 : 00000000000d9b2e
[   84.919172] x8 : 0000000000000020 x7 : 0000000000000001 x6 : 0000000000000029
[   84.919237] x5 : 00000013c3f07582 x4 : ffff800074da5000 x3 : 00000000fefefefd
[   84.919302] x2 : ffff80008299e138 x1 : fffffdffbf7d6200 x0 : 00000013c3f0733b
[   84.919368] Call trace:
[   84.919388]  print_graph_entry+0x4d0/0x4e8 (P)
[   84.919422]  print_graph_function_flags+0x280/0x4b8
[   84.919455]  print_graph_function+0x18/0x28
[   84.919487]  print_trace_line+0xc8/0x5d0
[   84.919519]  tracing_read_pipe+0x1b4/0x358
[   84.919550]  vfs_read+0xcc/0x340
[   84.919586]  ksys_read+0x7c/0x120
[   84.919619]  __arm64_sys_read+0x24/0x38
[   84.919652]  invoke_syscall+0x50/0x120
[   84.919684]  el0_svc_common.constprop.0+0xc8/0xf0
[   84.919714]  do_el0_svc+0x24/0x38
[   84.919744]  el0_svc+0x3c/0x130
[   84.919778]  el0t_64_sync_handler+0x10c/0x138
[   84.919810]  el0t_64_sync+0x198/0x1a0
[   84.919843] ---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
[   85.075793] WARNING: CPU: 4 PID: 3885 at kernel/trace/trace_functions_graph.c:985 print_graph_entry+0x4b8/0x4e8
[   85.075802] Modules linked in: brcmfmac brcmutil cfg80211 snd_soc_hdmi_codec dw_hdmi_i2s_audio dw_hdmi_cec rockchipdrm hci_uart hantro_vpu dw_hdmi_qp btqca analogix_dp btbcm dw_mipi_dsi v4l2_vp9 drm_dp_aux_bus v4l2_h264 panfrost snd_soc_audio_graph_card snd_soc_spdif_tx bluetooth reset_gpio snd_soc_simple_card v4l2_jpeg dw_hdmi rtc_rk808 v4l2_mem2mem drm_shmem_helper snd_soc_simple_card_utils cec gpu_sched videobuf2_dma_contig rfkill drm_display_helper snd_soc_rockchip_i2s phy_rockchip_pcie videobuf2_memops drm_client_lib pwrseq_core rockchip_saradc videobuf2_v4l2 drm_dma_helper videobuf2_common industrialio_triggered_buffer snd_soc_es8316 drm_kms_helper rockchip_thermal kfifo_buf pcie_rockchip_host coresight_cpu_debug fuse drm backlight ip_tables x_tables
[   85.075900] CPU: 4 UID: 0 PID: 3885 Comm: cat Tainted: G        W           6.15.0-rc6-next-20250515 #1 PREEMPT_RT 
[   85.075907] Tainted: [W]=WARN
[   85.075909] Hardware name: Radxa ROCK Pi 4B (DT)
[   85.075911] pstate: a0000005 (NzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[   85.075916] pc : print_graph_entry+0x4b8/0x4e8
[   85.075921] lr : print_graph_entry+0x140/0x4e8
[   85.075925] sp : ffff80008815baf0
[   85.075927] x29: ffff80008815bb50 x28: ffff00000afad480 x27: ffff00000afad4a0
[   85.075934] x26: ffff8000800fba8c x25: 0000000000000004 x24: ffff00000afad480
[   85.075941] x23: ffff0000088b4000 x22: 00000000000006b6 x21: 00000000fefefefe
[   85.075947] x20: ffff0000088b0000 x19: ffff0000088b2090 x18: 0000000000000000
[   85.075954] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000
[   85.075960] x14: 0000000000000001 x13: 0000000000000001 x12: 000004870100000b
[   85.075967] x11: ffff80008299f468 x10: 0000000000000020 x9 : 00000000000da020
[   85.075973] x8 : 0000000000000020 x7 : 0000000000000001 x6 : 0000000000000029
[   85.075979] x5 : ffff0000088b20a4 x4 : ffff800082184ac6 x3 : 0000000000000004
[   85.075985] x2 : ffff80008299e138 x1 : ffff800074da5000 x0 : fffffdffbf7d6200
[   85.075992] Call trace:
[   85.075996]  print_graph_entry+0x4b8/0x4e8 (P)
[   85.076002]  print_graph_function_flags+0x280/0x4b8
[   85.076007]  print_graph_function+0x18/0x28
[   85.076012]  print_trace_line+0xc8/0x5d0
[   85.076016]  tracing_read_pipe+0x1b4/0x358
[   85.076020]  vfs_read+0xcc/0x340
[   85.076026]  ksys_read+0x7c/0x120
[   85.076032]  __arm64_sys_read+0x24/0x38
[   85.076037]  invoke_syscall+0x50/0x120
[   85.076040]  el0_svc_common.constprop.0+0x48/0xf0
[   85.076045]  do_el0_svc+0x24/0x38
[   85.076048]  el0_svc+0x3c/0x130
[   85.076053]  el0t_64_sync_handler+0x10c/0x138
[   85.076057]  el0t_64_sync+0x198/0x1a0
[   85.076063] ---[ end trace 0000000000000000 ]---

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