Commits
Alexey Kuznetsov authored and Alexey Dobriyan committed 0bc6aca1873
CPT: SMP race in detecting state of ptraced processes When suspending VE, we test state of processes while they are still running. It is not a bug: we have to verify for invalid state before checkpointing, real state is saved after processes are scheduled out. The impact is that we can see process in a bad state, f.e. stopped without any reasons. It is also not a bug, but this rersults in random failures of checkpointing. The only way to fix this is to order updates of state variables. The order is correct almost everywhere.