Messages in this thread | | | Date | Fri, 6 Jul 2012 11:16:19 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH 0/2] [GIT PULL][v3.5] ring-buffer: Fixes for the changes in the last merge window |
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* Steven Rostedt <rostedt@goodmis.org> wrote:
> Ingo, > > This patch series has a couple of fixes for bugs that snuck > into the last merge window. The first is a crash that can > happen because of an uninitialized list, and failing to > allocate the requested amount. This can happen by changing the > buffer_size_kb to a huge amount as the first change that is > done to it after booting up (note, the bug does not happen if > a successful change happens first). > > The second patch can cause the ring buffer accounting (which > is used by the infrastructure of the ring buffer) to get out > of sync. This happens if you fill the buffer and then remove a > few pages from it while it is full. > > The fixes are pretty simple, and should go into the 3.5-rc. > > Please pull the latest tip/perf/urgent tree, which can be found at: > > git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git > tip/perf/urgent > > Head SHA1: 48fdc72f23ad9a9956e524a47843135d0bbc3317 > > > Vaibhav Nagarnaik (2): > ring-buffer: Fix crash due to uninitialized new_pages list head > ring-buffer: Fix accounting of entries when removing pages > > ---- > kernel/trace/ring_buffer.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-)
Pulled, thanks!
Ingo
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