Hi Conor, Sorry for making such mistakes, it's my git--send-email sending script that does not work well. I'll send v2 and double-check the cc-list ASAP. Regards, Ze On Tue, May 16, 2023 at 1:44 AM Conor Dooley <conor@xxxxxxxxxx> wrote: > > On Mon, May 15, 2023 at 11:13:09AM +0800, Ze Gao wrote: > > Current fprobe and rethook has some pitfalls and may introduce kernel stack recusion, especially in > > massive tracing scenario. > > > > For example, if (DEBUG_PREEMPT | TRACE_PREEMPT_TOGGLE) , preempt_count_{add, sub} can be traced via > > ftrace, if we happens to use fprobe + rethook based on ftrace to hook on those functions, > > recursion is introduced in functions like rethook_trampoline_handler and leads to kernel crash > > because of stack overflow. > > This patch series is a bit confusing. The RISC-V list got 2 cover letters > and 2 patch 4s, but not any of the rest of the series. Please at least > send the whole series to the list so our patchwork automation can be run > against it. And mark it as v2 while you are at it. > > Thanks, > Conor.