#kexec -p ./Imaeg --append=“root=/dev/mmcblk2p6 maxcpus=1”
#echo c > /proc/sysrq-trigger
console disply :
[ 545.531798] sysrq: Trigger a crash
[ 545.531841] Kernel panic - not syncing: sysrq triggered crash
[ 545.531841]
[ 545.542460] CPU: 5 PID: 2208 Comm: bash Kdump: loaded Tainted: G O 4.19.172 #13
[ 545.551073] Hardware name: Rockchip RK3399 Excavator Board (Linux Opensource) (DT)
[ 545.558637] Call trace:
[ 545.561110] dump_backtrace+0x0/0x188
[ 545.564786] show_stack+0x24/0x30
[ 545.568117] dump_stack+0x8c/0xb4
[ 545.571442] panic+0x160/0x2f0
[ 545.574507] sysrq_handle_reboot+0x0/0x20
[ 545.578526] __handle_sysrq+0x98/0x148
[ 545.582283] write_sysrq_trigger+0xa8/0xb0
[ 545.586395] proc_reg_write+0x7c/0xbc
[ 545.590069] __vfs_write+0x60/0x178
[ 545.593567] vfs_write+0xd0/0x18c
[ 545.596892] ksys_write+0x74/0xe4
[ 545.600216] __arm64_sys_write+0x24/0x30
[ 545.604153] el0_svc_common.constprop.0+0xe8/0x168
[ 545.608947] el0_svc_handler+0x70/0x8c
[ 545.612705] el0_svc+0x8/0xc
[ 545.615613] SMP: stopping secondary CPUs
kernel stuck and no response. how to I can debug.