On Wed, Jul 20, 2022 at 08:19:11AM +0100, Marc Zyngier wrote: > Hi Paul, > > On Tue, 19 Jul 2022 18:15:47 +0100, > "Paul E. McKenney" <paulmck@xxxxxxxxxx> wrote: > > > > On Tue, Jul 19, 2022 at 09:25:56AM +0100, Marc Zyngier wrote: > > > > > > Is there any chance for this fix to make it into 5.19? The regression > > > is significant enough on low-end systems, and I'd rather see it > > > addressed. > > > > I wasn't planning on it, based on my (possibly quite flawed) assumption > > that it affected only embedded systems running in a virtual environment. > > Not quite. This affects any system running virtual machines based on > KVM and using QEMU as the VMM (the machines I run this on don't quite > qualify as "embedded"). > > > My plan was to send it in my pull request for the next merge window > > next week. My pull request is next week, yes, the merge window opens > > the following Sunday. ;-) > > > > It has a Fixes tag, so it will be backported. > > > > But if it is important to get it into v5.19 rather than v5.19.x for small > > "x", please let me know and I will see what Linus does with the resulting > > v5.19-rc7 pull request. > > I think that the sooner we address this in an upstream kernel, the > better, and I'd definitely support you sending this to Linus for -rc7! Given your and Zhangfei's Tested-by, if testing continues to go well, I will send a pull request to Linus before the end of this week. Thanx, Paul > Thanks, > > M. > > -- > Without deviation from the norm, progress is not possible.