On Mon, Jun 05, 2023 at 08:57:15PM +0200, Michal Hocko wrote: > > Guest initiated I/O, since the host CPU is isolated. > > Make it explicit in the changelog. I think better use of our time would be to focus on https://lkml.iu.edu/hypermail/linux/kernel/2209.1/01263.html 1) Operate in terms of add CPU, remove CPU on sysfs (to avoid races). 2) Don't allow all CPUs to be marked as "block_interf". 3) Remove percpu rwsem lock. > I am just wondering how you can achieve your strict deadlines when IO is > involved but that is another story I guess. IO can be submitted when the ELF binary and libraries are read from the virtual disk, for example.
