Re: BUG: Kprobe smoke test: 2 out of 6 tests failed

[Steven Rostedt]

On Fri, 2012-08-24 at 09:41 -0400, Steven Rostedt wrote:

> On Fri, 2012-08-24 at 15:15 +0800, Fengguang Wu wrote:
> > Hi Steven,
> > 
> > The following test fails are mostly due to this commit, or one of the
> > last 4 commits in
> > 
> > tree:   git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git tip/perf/core
> > head:   d57c5d51a30152f3175d2344cb6395f08bf8ee0c
> > commit: d57c5d51a30152f3175d2344cb6395f08bf8ee0c [100/100] ftrace/x86: Add support for -mfentry to x86_64
> > 
> > [    9.084881] Kprobe smoke test failed: register_jprobe returned -22
> > [    9.086786] Kprobe smoke test failed: register_jprobes returned -22

Masami,

Seems that when we use fentry, we break jprobes. I thought the patches
that we added would just move the call to the next op, not fail totally?

Are jprobes deprecated?

-- Steve

> > [    9.121281] BUG: Kprobe smoke test: 2 out of 6 tests failed
> > [    9.171132] Testing tracer function: PASSED
> > [    9.408938] Testing dynamic ftrace: PASSED
> > 
> > Thanks,
> > Fengguang
> 


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