On Tue, Dec 06, 2016 at 08:31:01AM -0500, Jan Stancek wrote: > Starting with 4.9-rc8 / commit 8ab2ae655b ("default exported asm symbols to > zero") > I'm running into issue with kernel built with CONFIG_MODVERSIONS=y > and (older) binutils (binutils-2.25.1-20.base.el7.ppc64le). > > Modules fail to load, for example: > > [ 3.163646] Found checksum 0 vs module 4829A47E > [ 3.163787] dm_mod: disagrees about version of symbol memcpy > [ 3.163862] dm_mod: Unknown symbol memcpy (err -22) > > Bisect led me to 8ab2ae655b, reverting it allows boot to > progress as before.
powerpc happens to be the only arch that actually followed the plan and implemented asm-prototypes.h (not including Debian which applied my patch to do so on x86, that patch is not in mainline). Could you try reverting commits that add exports to that file? -- u-boot problems can be solved with the help of your old SCSI manuals, the parts that deal with goat termination. You need a black-handled knife, and an appropriate set of candles (number and color matters). Or was it a silver-handled knife? Crap, need to look that up.