A kernel crash
$this->bbcode_second_pass_code('', ' ------------[ cut here ]------------
[ 465.404724] WARNING: CPU: 0 PID: 1 at drivers/i2c/i2c-core.h:39 i2c_transfer+0xe8/0xf4
[ 465.413567] No atomic I2C transfer handler for 'i2c-0'
[ 465.419301] Modules linked in: bnep bluetooth ecdh_generic ecc 8021q garp mrp stp llc joydev snd_soc_hdmi_codec realtek dw_hdmi_cec dw_hdmi_i2s_audio snd_soc_simple_card snd_soc_simple_card_utils evdev snd_soc_rockchip_i2s snd_soc_rockchip_pcm snd_soc_core ac97_bus snd_pcm_dmaengine panfrost rockchip_rga v4l2_mem2mem videobuf2_dma_sg videobuf2_memops gpu_sched videobuf2_v4l2 videobuf2_common dw_wdt rk_crypto r8723bs(C) pwm_rockchip snd_usb_audio snd_usbmidi_lib snd_hwdep snd_rawmidi snd_seq_device snd_pcm snd_timer cfg80211 rfkill dwmac_rk stmmac_platform rockchipdrm stmmac dw_mipi_dsi analogix_dp rockchip_saradc dw_hdmi uio_pdrv_genirq uio sch_fq_codel crypto_user ip_tables x_tables
[ 465.487046] CPU: 0 PID: 1 Comm: shutdown Tainted: G C 5.2.9-3-ARCH #1
[ 465.495694] Hardware name: Rockchip (Device Tree)
[ 465.500954] [<c0311340>] (unwind_backtrace) from [<c030bf60>] (show_stack+0x10/0x14)
[ 465.509609] [<c030bf60>] (show_stack) from [<c0f275ac>] (dump_stack+0xa4/0xb8)
[ 465.517678] [<c0f275ac>] (dump_stack) from [<c034680c>] (__warn+0xd4/0xf0)
[ 465.525360] [<c034680c>] (__warn) from [<c034638c>] (warn_slowpath_fmt+0x48/0x6c)
[ 465.533721] [<c034638c>] (warn_slowpath_fmt) from [<c0c4d0c4>] (i2c_transfer+0xe8/0xf4)
[ 465.542666] [<c0c4d0c4>] (i2c_transfer) from [<c0a83584>] (regmap_i2c_read+0x58/0x88)
[ 465.551418] [<c0a83584>] (regmap_i2c_read) from [<c0a7f834>] (_regmap_raw_read+0xec/0x148)
[ 465.560651] [<c0a7f834>] (_regmap_raw_read) from [<c0a7f8c8>] (_regmap_bus_read+0x38/0x60)
[ 465.569885] [<c0a7f8c8>] (_regmap_bus_read) from [<c0a7ea1c>] (_regmap_read+0x60/0xb8)
[ 465.578730] [<c0a7ea1c>] (_regmap_read) from [<c0a7ee7c>] (_regmap_update_bits+0xb0/0xec)
[ 465.587867] [<c0a7ee7c>] (_regmap_update_bits) from [<c0a7fe14>] (regmap_update_bits_base+0x4c/0x70)
[ 465.598073] [<c0a7fe14>] (regmap_update_bits_base) from [<c0a9e024>] (rk808_device_shutdown+0x44/0x70)
[ 465.608474] [<c0a9e024>] (rk808_device_shutdown) from [<c0368508>] (sys_reboot+0x158/0x218)
[ 465.617806] [<c0368508>] (sys_reboot) from [<c0301000>] (ret_fast_syscall+0x0/0x54)
[ 465.626357] Exception stack(0xea06ffa8 to 0xea06fff0)
[ 465.631996] ffa0: 00000000 00000000 fee1dead 28121969 4321fedc a12dc500
[ 465.641123] ffc0: 00000000 00000000 00000003 00000058 00000000 00000000 00000000 00000000
[ 465.650257] ffe0: 004cde40 bec20cc4 004b7d74 b6bf1420
[ 465.655896] ---[ end trace eca2ec50d2cd0b31 ]---
')
It might be because I've tried to start the bluetooth.