Re: [RFC] tracepoint: Run tracepoints even after CPU is offline

2018-08-06 Thread Steven Rostedt
On Sun, 5 Aug 2018 20:44:37 -0700 "Joel Fernandes (Google)" wrote: > Commit f37755490fe9 ("tracepoints: Do not trace when cpu is offline") > causes a problem for lockdep using tracepoint code. Once a CPU is > offline, tracepoints donot get called, however this causes a big problem > for lockdep

Re: [RFC] tracepoint: Run tracepoints even after CPU is offline

2018-08-06 Thread Steven Rostedt
On Sun, 5 Aug 2018 20:44:37 -0700 "Joel Fernandes (Google)" wrote: > Commit f37755490fe9 ("tracepoints: Do not trace when cpu is offline") > causes a problem for lockdep using tracepoint code. Once a CPU is > offline, tracepoints donot get called, however this causes a big problem > for lockdep

[RFC] tracepoint: Run tracepoints even after CPU is offline

2018-08-05 Thread Joel Fernandes (Google)
Commit f37755490fe9 ("tracepoints: Do not trace when cpu is offline") causes a problem for lockdep using tracepoint code. Once a CPU is offline, tracepoints donot get called, however this causes a big problem for lockdep probes that need to run so that IRQ annotations are marked correctly. An

[RFC] tracepoint: Run tracepoints even after CPU is offline

2018-08-05 Thread Joel Fernandes (Google)
Commit f37755490fe9 ("tracepoints: Do not trace when cpu is offline") causes a problem for lockdep using tracepoint code. Once a CPU is offline, tracepoints donot get called, however this causes a big problem for lockdep probes that need to run so that IRQ annotations are marked correctly. An