From: Matthew Wilcox > Sent: 17 March 2023 17:53 ... > My understanding is that for a normal app (like, say, 'cat'), we'll > allow up to an 8MB stack, but we only create a VMA that is 4kB in size > and set the VM_GROWSDOWN flag on it (to allow it to magically grow). > Therefore we won't create a 2MB page because the VMA is too small. Is there anyway that glibc (or anything else) could request that for a thread stack? It would make the process 'memory size' reported by ps/top much more meaningful for programs with threads. I've noticed some (what should be) small programs having a size (rss?) of 277m. I'm sure a lot of it is thread stack. David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)
