Viewing profile — rovarma

Leaving aside the vitriol... > The code that deadlocked was entirely written by Superluminal who grabbed a shared lock from a interrupt handler We don't "grab a shared lock". We ca…

Thanks! The new spinlock that the problem is in was introduced in kernel 5.15, which is relatively new, you need to be hooking context switches, and you need to be sampling at a hi…

> Why not have context switches write to ringBuffer1 and sampling events write to ringBuffer2 (i.e. use different ringBuffers) That would work, but at the cost of doubling memory u…

Thanks! > In hindsight, making the sync point be paid for all users was a mistake, and an opt-in flag would have been the better option Yep. It was mentioned on the original patch’…