I remember old versions of AIX which would do that. It was surprising given the expense and almost exclusively corporate nature of it. They eventually fixed i

I remember old versions of AIX which would do that. It was surprising given the expense and almost exclusively corporate nature of it. They eventually fixed it, but the way a lot of them were used, they could sit years waiting for an update. I saw one (not ours, thankfully) with ~1200+ days uptime. I bet there are still a few out there that haven't been upgraded sinced they fixed it in 2007.