On Tue, Aug 13, 2024 at 5:47 AM Oleg Nesterov <oleg@xxxxxxxxxx> wrote: > > On 08/13, Liao, Chang wrote: > > > > > > Oleg, your explaination is more accurate. So I will reword the commit log and > > quote some of your note like this: > > Oh, please don't. I just tried to explain the history of this spin_lock(siglock). > > > Since we already have the lockless user of clear_thread_flag(TIF_SIGPENDING). > > And for uprobe singlestep case, it doesn't break the rule of "the state of > > TIF_SIGPENDING of every thread is stable with sighand->siglock held". > > It obviously does break the rule above. Please keep your changelog as is. > > Oleg. > Liao, Can you please rebase and resend your patches now that the first part of my uprobe patches landed in perf/core? Seems like there is some tiny merge conflict or something. Thanks!