Re: vector space exhaustion on 4.14 LTS kernels

2018-11-21 Thread Thomas Gleixner
Josh, On Mon, 19 Nov 2018, Josh Hunt wrote: > We have a class of machines that appear to be exhausting the vector space on > cpus 0 and 1 which causes some breakage later on when trying to set the > affinity. The boxes are running the 4.14 LTS kernel. > > [ 39.531385] __assign_irq_vector: irq:5

vector space exhaustion on 4.14 LTS kernels

2018-11-19 Thread Josh Hunt
Hi Thomas We have a class of machines that appear to be exhausting the vector space on cpus 0 and 1 which causes some breakage later on when trying to set the affinity. The boxes are running the 4.14 LTS kernel. I instrumented 4.14 and here's what I see: [ 28.328849] __assign_irq_vector: i