zvol_swap tests can sometimes fail due to insufficient memory
This bug is to address the failures seen in the zvol_swap tests that led to them being disabled in 7238.
Updated by Igor Kozhukhov about 5 years ago
i have found interest solution.
zvol_swap setup failed if we have 4 or 6 GB RAM, but it is working with 8GB RAM on VM as well.
i have used zfs tests in loop non-stop about 4-5 days - no issues with this test if we have 8GB RAM on VM.
i'm using kvm vm.