On Thu, 28 Nov 2024 19:53:19 +0800 Tao Chen <chen.dyl...@gmail.com> wrote:
> Now, x86_64 kernel not support to trace syscall for ia32 syscall. > As a result, there is no any trace output when tracing a ia32 task. > Like unreg_event_syscall_enter, add a WARN_ON_ONCE judgment for > syscall_nr in perf_syscall_enter and ftrace_syscall_enter to give > some message. So on a system that has "panic_on_warn" set and they trace a 32 bit system call, it will cause their system to crash. Is that the intended behavior? WARN*() is for self testing the kernel to detect real bugs, not to inform users that something isn't supported. BIG NAK! -- Steve
