Messages in this thread | | | Date | Mon, 14 Jan 2013 22:20:42 -0500 | From | Steven Rostedt <> | Subject | [PATCH 0/2] [GIT PULL] tracing: A couple more regression fixes |
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Linus,
The clean up patch commit 0fb9656d "tracing: Make tracing_enabled be equal to tracing_on" caused two regressions.
1) The irqs off latency tracer no longer starts if tracing_on is off when the tracer is set, and then tracing_on is enabled. The tracing_on file needs the hook that tracing_enabled had to enable tracers if they request it (call the tracer's start() method).
2) That commit had a separate change that really should have been a separate patch, but it must have been added accidently with the -a option of git commit. But as the change is still related to the commit it wasn't noticed in review. That change, changed the way blocking is done by the trace_pipe file with respect to the tracing_on settings. I've been told that this change breaks current userspace, and this specific change is being reverted.
Please pull trace-3.8-rc3-regression-fix, which can be found at:
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git trace-3.8-rc3-regression-fix
Head SHA1: 84c630600dc007d2fbd307088b87c9be85b40a97
Liu Bo (1): tracing: Fix regression of trace_pipe
Steven Rostedt (1): tracing: Fix regression with irqsoff tracer and tracing_on file
---- kernel/trace/trace.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) [unhandled content-type:application/pgp-signature]
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