Dear Steven,
On 01/17/18 17:25, Steven Rostedt wrote:
On Wed, 17 Jan 2018 11:19:43 -0500 Steven Rostedt <rost...@goodmis.org> wrote:On Wed, 17 Jan 2018 11:10:31 -0500 Steven Rostedt <rost...@goodmis.org> wrote:It's been fixed, and the the patch is in Linus's tree already: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a0e3a18f4baf8e3754ac1e56f0ade924d0c0c721Although I just noticed that the revert, also reverted the required barriers. I'll go add them back in.I take that back. Barriers are not needed, as interrupts do not need to see the updates. And looking at the patch being reverted, I don't think they were needed there either. The update to those bits only need to be done for the current context to prevent recursion at that context. And that was the case with the commit that was reverted.
The problem is indeed fixed in latest Linus’ master with commit a0e3a18f (ring-buffer: Bring back context level recursive checks). Thank you.
Kind regards, Paul
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