工具/软件:
您好、
参考资料: 3.2.2.19.看门狗—适用于 AM62L 的 Linux SDK 文档
使用命令 echo c >/proc/sysrq-trigger 触发崩溃后、系统不会重新引导。
root@am62lxx-EVM:~# lsmod | grep RTI
RTI_WDT 12288 0
Root@am62lxx-EVM:~# rmmod RTI_WDT
Root@am62lxx-EVM:~# modprobe RTI_WDT heartbeat=30
root@am62lxx-EVM:~# echo c >/proc/sysrq-trigger
[201.279618] sysrq:触发崩溃
[ 2011.283045]内核紧急-未同步: SysRq 触发崩溃
[201.288783] CPU: 1 UID: 0 PID: 504 Comm: sh tainted: G O 6.12.13-ti-g1a2d611ee02d #1.
[201.297900]已污染:[O]=OOT_MODULE
[ 201.301376]硬件名称:Texas Instruments AM62L3 EVM (DT)
[201.307020]呼叫跟踪:
[201.309456] dump_backtrace+0x90/0xe8
[ 201313123] SHOW_STACK+0x18/0x24
[201316432] dump_stack_lvl+0x34/0x8c
[ 201.320088] dump_stack+0x18/0x24
[201.32394] panic+0x390/0x3a4
[ 201.326444] sysrq_reset_seq_param_set+0x0/0x98
[ 201.330971]__handle_sysrq+0xe4/0x1cc
[ 201.334715] write_sysrq_trigger+0xc0/0xd0
[ 201.338803] proc_reg_write+0x9C/0xf0
[ 201.342458] vfs_write+0xd4/0x378
[ 201.345768] ksys_write+0x74/0x10c
[ 201.349161]__arm64_sys_write+0x1c/0x28
[ 201.353075] invoke_syscall+0x48/0x10c
[201.356817] el0_Svc_common.constprop.0+0xc0/0xe0
[ 2011.361511] do_el0_svc+0x1c/0x28
[201.364819] el0_Svc+0x28/0x98
[ 201.367867] el0t_64_SYNC_HANDLER+0x120/0x12c
[ 201.372214] el0t_64_SYNC+0x190/0x194
[201.375870] SMP:停止辅助 CPU
[ 201.379790]内核偏移:已禁用
[201.383265] CPU 特性:0x00,00000080,00200000,4200420b</s>080,002 00,000,420
[201.388651]内存限制:无
[201.391700]--[结束内核恐慌-未同步:SysRq 触发崩溃]---