On Fri, Dec 22, 2017 at 08:18:10AM -0600, Dan Rue wrote: > On Fri, Dec 22, 2017 at 09:45:08AM +0100, Greg Kroah-Hartman wrote: > > 4.14-stable review patch. If anyone has any objections, please let me know. > > > > ------------------ > > > > From: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> > > > > commit 83e3c48729d9ebb7af5a31a504f3fd6aff0348c4 upstream. > > > > Size of the mem_section[] array depends on the size of the physical address space. > > > > In preparation for boot-time switching between paging modes on x86-64 > > we need to make the allocation of mem_section[] dynamic, because otherwise > > we waste a lot of RAM: with CONFIG_NODE_SHIFT=10, mem_section[] size is 32kB > > for 4-level paging and 2MB for 5-level paging mode. > > > > The patch allocates the array on the first call to sparse_memory_present_with_active_regions(). > > > > Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> > > Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> > > Cc: Andy Lutomirski <luto@xxxxxxxxxxxxxx> > > Cc: Borislav Petkov <bp@xxxxxxx> > > Cc: Cyrill Gorcunov <gorcunov@xxxxxxxxxx> > > Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> > > Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> > > Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> > > Cc: linux-mm@xxxxxxxxx > > Link: http://lkml.kernel.org/r/20170929140821.37654-2-kirill.shutemov@xxxxxxxxxxxxxxx > > Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> > > Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > > This patch causes a boot failure on arm64. > > Please drop this patch, or pick up the fix in: > > commit 629a359bdb0e0652a8227b4ff3125431995fec6e > Author: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> > Date: Tue Nov 7 11:33:37 2017 +0300 > > mm/sparsemem: Fix ARM64 boot crash when CONFIG_SPARSEMEM_EXTREME=y > > See https://www.mail-archive.com/linux-kernel@xxxxxxxxxxxxxxx/msg1527427.html Now added, thanks. greg k-h -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
