Messages in this thread | | | Subject | Re: [PATCH] Remove redhat'ism from ftrace selftests. | From | Michael Ellerman <> | Date | Wed, 04 Mar 2015 21:47:47 +1100 |
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On Tue, 2015-03-03 at 17:05 -0700, Shuah Khan wrote: > On 02/27/2015 08:16 PM, Namhyung Kim wrote: > > On Tue, Feb 24, 2015 at 01:24:59PM -0500, Dave Jones wrote: > >> On Tue, Feb 24, 2015 at 11:22:58AM -0700, Shuah Khan wrote: > >> > On 02/24/2015 11:18 AM, Steven Rostedt wrote: > >> > > > >> > > Shuah, > >> > > > >> > > Can you take this in your tree? > >> > > >> > Yes I can do that. This must be the original patch email: > >> > https://lkml.org/lkml/2015/2/24/435 > > > > Please see below links: > > > > https://lkml.org/lkml/2014/12/10/52 > > https://lkml.org/lkml/2014/12/22/556 > > > > I think we can get rid of the (u)sleeps entirely since 'cat trace' > > itself should trigger scheduler events. > > Steve/Dave, > > Still good to take it through. The discussion in the threads > Namhyung Kim pointed to seem to be inconclusive. > > The only difference between the original patch > https://lkml.org/lkml/2014/12/9/780 > and > https://lkml.org/lkml/2015/2/24/435 > > is sleep duration change. I can take through my tree > https://lkml.org/lkml/2015/2/24/435 > > just confirming.
No, the resoultion was that busybox doesn't support fractional sleeps and so using them is not a solution.
I thought /bin/true would work, but never got around to testing it. The other option was to use (echo "forked"):
https://lkml.org/lkml/2014/12/23/447
cheers
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