On Tue, Jan 03, 2023 at 09:39:37AM +0000, Mel Gorman wrote:
On Mon, Jan 02, 2023 at 11:34:44AM +0100, gregkh@linuxfoundation.org wrote:
The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
Possible dependencies:
1c0908d8e441 ("rtmutex: Add acquire semantics for rtmutex lock acquisition slow path") ee042be16cb4 ("locking: Apply contention tracepoints in the slow path") d257cc8cb8d5 ("locking/rwsem: Make handoff bit handling more consistent") 7cdacc5f52d6 ("locking/rwsem: Disable preemption for spinning region")
thanks,
greg k-h
Hi Greg,
I don't plan to backport this to -stable. It's PREEMPT_RT-specific so anyone how needs it are managing their own OOT patches. The prerequisites are not -stable material so ideally anyone backporting would be functionally verifying their target workloads still works ok and meets deadlines. Normal users of stable kernels are not impacted by the bug this patch fixes.
Thanks for the info!