You are not logged in.
Pages: 1
The subject line pretty much says it all. When my physical RAM gets full, my machine becomes slow and then unresponsive just as if it were locked up in a VM swapfest, with disk activity pegged and all other IO (including the keyboard) starved. What's weird is that I don't have swap enabled, and this state will persist arbitrarily long - I've tried leaving the machine for hours this way and the lockup never clears.
Some research indicated that I was basically experiencing how linux performs without any disk cache (there being no free RAM to use for this purpose), so I set vm.min_free_kbytes to 65536, but there hasn't been any noticeable effect from that. In any case, once RAM gets this exhausted, shouldn't oomkill be running? It doesn't seem to be - no processes ever die, and the lockup never clears.
So, yeah. WTF is actually going on here? Obviously I don't expect to run into the RAM wall without some serious breakage, but having to hard-restart (IO is so starved the kernel can't even hear ctrl-alt-printscreen-reisub) every time this happens seems a bit extreme.
Thanks...
Offline
Pages: 1