Re: old version of trace-cmd broken on 3.10 kernel

From: Shawn Bohrer
Date: Fri May 31 2013 - 13:10:21 EST


On Fri, May 31, 2013 at 01:05:35PM -0400, Steven Rostedt wrote:
> On Fri, 2013-05-31 at 11:50 -0500, Shawn Bohrer wrote:
> > Not sure if this is a big deal or not. I've got an old version of
> > trace-cmd. It was built from git on 2012-09-12 but sadly I didn't
> > stash away the exact commit hash. Anyway this version works fine on a
> > 3.4 kernel but on a 3.10-rc3 kernel it no longer works. I just pulled
> > the latest trace-cmd from git and it works fine on the 3.10 kernel so
> > maybe this isn't an issue, but I don't typically expect applications
> > to break with a kernel upgrade.
> >
> > When I run the old version on 3.10.0-rc3 I get the following output:
>
> Yep, in 3.10 I fixed a long standing bug in the splice code, that when
> fixed, the old trace-cmd would fail.
>
> I made a fix to all the stable releases of trace-cmd and posted it to
> LKML back on March 1st.
>
> https://lkml.org/lkml/2013/3/1/596

Thanks Steve,

I'll just update my trace-cmd version. It is about time for an update
anyway.

Thanks,
Shawn
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