ftrace updates for 2.6.28
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- v1 Latest2 patches 6 repliesIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/2 | ftrace: disable tracing on resizekernel/ | +16 | 4 replies | |
| 2/2 | ring-buffer: prevent infinite looping on time stampingkernel/ | +1 | 0 replies |
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Cover letter [PATCH 0/2] ftrace updates for 2.6.28
Stephen and Ingo,
The following patches are needed for 2.6.28. The first one solves a bug where the resizing of the buffer array was not protected against modifications by ftrace.
The second patch solves an issue tha Thomas Gleixner was seeing where the tracer would detect the infinite recursion too easily by tracing the timer code. This patch prevents the loop from happening and still does not lose any trace entries.
The changes caused by these patches are low in risk, but I would still like to put them through linux-next before passing them off to Linus.
Note, these changes are based against Linus's mainline and not tip. Also note that the branch in this tree is "devel" and not "tip/devel".
The following patches are in:
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace.git
branch: devel
Steven Rostedt (2):
ftrace: disable tracing on resize
ring-buffer: prevent infinite looping on time stamping
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kernel/trace/ring_buffer.c | 2 +- kernel/trace/trace.c | 17 ++++++++++++++++- 2 files changed, 17 insertions(+), 2 deletions(-)