Messages in this thread | | | Date | Fri, 15 May 2020 09:15:13 -0400 | From | Steven Rostedt <> | Subject | Re: [PATCH] ftrace: show debugging information when panic_on_warn set |
| |
On Fri, 15 May 2020 10:08:28 +0000 Cheng Jian <cj.chengjian@huawei.com> wrote:
> When an anomaly is detected in the function call modification > code, ftrace_bug() is called to disable function tracing as well > as give some warn and information that may help debug the problem. > > But currently, we call FTRACE_WARN_ON_ONCE() first in ftrace_bug(), > so when panic_on_warn is set, we can't see the debugging information > here. Call FTRACE_WARN_ON_ONCE() at the end of ftrace_bug() to ensure > that the debugging information is displayed first. > > after this patch, the dmesg looks like: >
Thanks, I'll add this to my queue.
-- Steve
| |