Re: [PATCH v2 1/2] kretprobe: produce sane stack traces

2018-10-31 Thread kbuild test robot
Hi Aleksa, Thank you for the patch! Yet something to improve: [auto build test ERROR on tip/perf/core] [also build test ERROR on v4.19 next-20181031] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/comm

[PATCH v2 1/2] kretprobe: produce sane stack traces

2018-10-31 Thread Aleksa Sarai
Historically, kretprobe has always produced unusable stack traces (kretprobe_trampoline is the only entry in most cases, because of the funky stack pointer overwriting). This has caused quite a few annoyances when using tracing to debug problems[1] -- since return values are only available with kre