Hi there, By coincidence, I found this log message in my kernel logs: Mär 02 17:23:19 sinistra kernel: The swapaccount= commandline option is deprecated. Please report your usecase to linux-mm@xxxxxxxxx if you depend on this functionality. My usecase does depend on this in the following way: I use LXC extensively to isolate workloads from one another. Kind of like docker, but with full operating systems inside. Before I found out about swapaccount, I often ran into the issue that one misbehaving workload from one of those containers would bring the entire machine to a halt because it occupied lots of swap, and thus triggered significant slowdown. With swapaccount, I limit swap to about 10% of the RAM assigned to the containers. This allows them to swap out unused stuff, but invokes the OOM killer before any significant slowdown happens. The alternative would be to turn off swap for the system entirely, but it is running fairly efficiently thanks to swapping stuff out. I'd be interested to hear about alternatives. Thanks for hearing me, anyway. kind regards, Jonas Schäfer
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