On Tue, Nov 14, 2017 at 07:53:31PM +0100, David Sterba wrote: > On Mon, Nov 13, 2017 at 11:50:46PM +0100, David Sterba wrote: > > Up to now, there are no bootloaders supporting ZSTD. > > I've tried to implement the support to GRUB, still incomplete and hacky > but most of the code is there. The ZSTD implementation is copied from > kernel. The allocators need to be properly set up, as it needs to use > grub_malloc/grub_free for the workspace thats called from some ZSTD_* > functions. > > https://github.com/kdave/grub/tree/btrfs-zstd The branch is now in a state that can be tested. Turns out the memory requirements are too much for grub, so the boot fails with "not enough memory". The calculated value ZSTD_BTRFS_MAX_INPUT: 131072 ZSTD_DStreamWorkspaceBound with ZSTD_BTRFS_MAX_INPUT: 549424 This is not something I could fix easily, we'd probalby need a tuned version of ZSTD for grub constraints. Adding Nick to CC. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
