Hi all, I haven't tried bisecting precisely, but somewhere along the way git cherry-pick -x regressed between 2.9.3 and 2.12.2. Looking at upstream linux.git, I can do: git fetch git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git next git cherry-pick -x 7b309aef0463340d3ad5449d1f605d14e10a4225 And see the following ending to the new commit: Acked-by: Arnd Bergmann <arnd@xxxxxxxx>(cherry picked from commit 7b309aef0463340d3ad5449d1f605d14e10a4225) On 2.9.3, this worked fine: Acked-by: Arnd Bergmann <arnd@xxxxxxxx> (cherry picked from commit 7b309aef0463340d3ad5449d1f605d14e10a4225) This issue doesn't happen on all commits; maybe it's bad parsing looking at 'Signed-off' and the like? Regards, Brian