echo is a shell builtin, so your shell is the process that enters the kernel by calling sys_write().Possibly I've given it a wrong parameter, but it shouldn't kill my shell.
There is an Oops, "Unable to handle kernel NULL pointer dereference", four seconds after the Warnings. Following an Oops there is no attempt to return to userspace. The process is killed.
Statistics: Posted by jojopi — Wed Jul 23, 2025 11:57 am