"Scott Marlowe" <scott.marlowe@xxxxxxxxx> writes: > I'm load testing a machine, and i'm seeing idle in transaction > processes that are no longer hooked to any outside client, that pull > 100% CPU and can't be kill -9ed. To my knowledge, the only way a process can't be kill -9'd is if it's stuck inside the kernel (typically, doing I/O to a nonresponsive disk). There's certainly no way for a userland process to defend itself against kill -9. So my immediate response would have been to look for a hardware problem, or failing that a kernel bug. I see from the subsequent thread that indeed hardware failure looks to be the answer, but that should have been your first assumption. regards, tom lane
