On Wed, 19 Sep 2018 08:07:06 +0200 Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > On Tue, Sep 18, 2018 at 07:14:13PM -0400, Steven Rostedt wrote: > > > > Linus (aka Greg), > > > > Vaibhav Nagarnaik found that modifying the ring buffer size could cause > > a huge latency in the system because it does a while loop to free pages > > without releasing the CPU (on non preempt kernels). In a case where there > > are hundreds of thousands of pages to free it could actually cause a system > > stall. A properly place cond_resched() solves this issue. > > > > > > Please pull the latest trace-v4.19-rc4 tree, which can be found at: > > > > > > git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git > > trace-v4.19-rc4 > > Ick, line wrapping makes it hard to cut/paste :( ?? That's the way I have always posted pull requests. I place the branch on the second line. It's not line wrapped, it's a hard coded new line. Long ago I was told to do it that way. Should that be changed? It would be trivial to update my scripts. > > Anyway, now pulled and pushed out. Thanks, -- Steve
