Re: 4.19 dwarf unwinding broken

2019-10-03 Thread Arnaldo Carvalho de Melo
Em Thu, Oct 03, 2019 at 08:17:38AM -0700, Josh Hunt escreveu: > On 10/3/19 3:03 AM, Jiri Olsa wrote: > >On Thu, Oct 03, 2019 at 12:54:09AM -0700, Josh Hunt wrote: > >>The following commit is breaking dwarf unwinding on 4.19 kernels: > > > >how? > > When doing something like: > perf record -p $(cat

Re: 4.19 dwarf unwinding broken

2019-10-03 Thread Josh Hunt
On 10/3/19 3:03 AM, Jiri Olsa wrote: On Thu, Oct 03, 2019 at 12:54:09AM -0700, Josh Hunt wrote: The following commit is breaking dwarf unwinding on 4.19 kernels: how? When doing something like: perf record -p $(cat /var/run/app.pid) -g --call-graph dwarf -F 999 -- sleep 3 with 4.19.75 per

Re: 4.19 dwarf unwinding broken

2019-10-03 Thread Jiri Olsa
On Thu, Oct 03, 2019 at 12:54:09AM -0700, Josh Hunt wrote: > The following commit is breaking dwarf unwinding on 4.19 kernels: how? jirka > > commit e5adfc3e7e774ba86f7bb725c6eef5f32df8630e > Author: Konstantin Khlebnikov > Date: Tue Aug 7 12:09:01 2018 +0300 > > perf map: Synthesize ma

4.19 dwarf unwinding broken

2019-10-03 Thread Josh Hunt
The following commit is breaking dwarf unwinding on 4.19 kernels: commit e5adfc3e7e774ba86f7bb725c6eef5f32df8630e Author: Konstantin Khlebnikov Date: Tue Aug 7 12:09:01 2018 +0300 perf map: Synthesize maps only for thread group leader It looks like this was fixed later by: commit e8ba29