2009-12-09 05:17:16

by Jon Masters

[permalink] [raw]
Subject: CONFIG_FTRACE_STARTUP_TEST in 2.6.32

Steven,

FYI I built a Linus tree yesterday with CONFIG_FTRACE_STARTUP_TEST
enabled (as well as *all* other debug options, per usual setup) on a KVM
instance running F12 userspace with otherwise "make localmodconfig".

The kernel stalls at the ftrace tester and I eventually rebooted it. I
didn't have any time to poke further, but I can do so if you don't
already know about this problem.

Jon.


2009-12-09 05:31:59

by Steven Rostedt

[permalink] [raw]
Subject: Re: CONFIG_FTRACE_STARTUP_TEST in 2.6.32

On Wed, 2009-12-09 at 00:17 -0500, Jon Masters wrote:
> Steven,
>
> FYI I built a Linus tree yesterday with CONFIG_FTRACE_STARTUP_TEST
> enabled (as well as *all* other debug options, per usual setup) on a KVM
> instance running F12 userspace with otherwise "make localmodconfig".
>
> The kernel stalls at the ftrace tester and I eventually rebooted it. I
> didn't have any time to poke further, but I can do so if you don't
> already know about this problem.

Nope, I don't know of this. Although someone did tell me that they had a
bug with KVM and tracing. I got side tracked from debugging that. (still
kind of low priority).

But where exactly did it get stuck?

-- Steve