Red Hat Bugzilla – Bug 182080
2GB as swap partition's size limit for FC4 i386/x86_64?
Last modified: 2015-01-04 17:25:30 EST
Description of problem: What's the size limit for a swap partition for FC4? Is the 2GB limit useful size per swap partition still in effect or not? from mkswap manual it says that the limit is lift off. But really need to confirm that for i386 arch. And for x86_64 arch, what's the maximum useful size per swap area? The following is cut from mkswap manual: The maximum useful size of a swap area depends on the architecture and kernel version. It is roughly 2GiB on i386, PPC, m68k, ARM, 1GiB on sparc, 512MiB on mips, 128GiB on alpha and 3TiB on sparc64. For kernels after 2.3.3 there is no that limitation. Version-Release number of selected component (if applicable): util-linux-2.12p-9.13 kernel-2.6.13-1.1532_FC4 kernel-2.6.15-1.1831_FC4 How reproducible: Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info:
It's more than 2GB for i386 and x86_64. I think the real limit is max size of block device (probably 32bit - 16Tb, 64bit - 8Exabyte). Reassingning to kernel team -- maybe they know more exact numbers.
iirc, you can have up to 32 64GB swaps active at the same time. Posting such questions to linux-kernel is a better bet for such queries. Bugzilla is for tracking bugs.