Tool/software:
Hi,
Reference: 3.2.2.19. Watchdog — Linux SDK for AM62L Documentation
After triggering a crash with the command echo c > /proc/sysrq-trigger, the system does not reboot.
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: Trigger a crash
[ 201.283045] Kernel panic - not syncing: sysrq triggered crash
[ 201.288783] CPU: 1 UID: 0 PID: 504 Comm: sh Tainted: G O 6.12.13-ti-g1a2d611ee02d #1
[ 201.297900] Tainted: [O]=OOT_MODULE
[ 201.301376] Hardware name: Texas Instruments AM62L3 EVM (DT)
[ 201.307020] Call trace:
[ 201.309456] dump_backtrace+0x90/0xe8
[ 201.313123] show_stack+0x18/0x24
[ 201.316432] dump_stack_lvl+0x34/0x8c
[ 201.320088] dump_stack+0x18/0x24
[ 201.323394] 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
[ 201.361511] 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: stopping secondary CPUs
[ 201.379790] Kernel Offset: disabled
[ 201.383265] CPU features: 0x00,00000080,00200000,4200420b
[ 201.388651] Memory Limit: none
[ 201.391700] ---[ end Kernel panic - not syncing: sysrq triggered crash ]---