--- wikisrc/zfs.mdwn 2020/03/02 20:50:56 1.25 +++ wikisrc/zfs.mdwn 2020/06/24 15:19:56 1.26 @@ -198,6 +198,11 @@ is cleanly enough. For now, a good guess is that a 4G system with only 1T of disk is probably ok, and that 1G is very likely not ok. +Besides RAM, zfs requires that architecture kernel stack size is at least 12KB or more - some +operations cause stack overflow with 8KB kernel stack. On NetBSD, the architectures +with 16KB kernel stack are amd64, sparc64, powerpc, and experimental ia64, hppa. mac68k and sh3 have 12KB kernel +stack. All others use only 8KB stack, which is not enough to run zfs. + FreeBSD has some documentation about memory use. There is a notion of a minimum of 1G (used for ZFS), and using 1G for 1T of storage, and more if deduplication is enabled. FreeBSD considers all i386 systems