Replying to this old thread because I have questions regarding the patch, in the context of problems I had downstream, in git-cinnabar. On Thu, Nov 01, 2018 at 01:46:22PM +0000, Derrick Stolee wrote: > static void init_topo_walk(struct rev_info *revs) > { > struct topo_walk_info *info; > + struct commit_list *list; > revs->topo_walk_info = xmalloc(sizeof(struct topo_walk_info)); Not directly from this patch, but there's nothing that frees this memory AFAICS, but then, that's also true for most of the things in struct rev_info. > diff --git a/revision.h b/revision.h > index fd4154ff75..b0b3bb8025 100644 > --- a/revision.h > +++ b/revision.h > @@ -24,6 +24,8 @@ > #define USER_GIVEN (1u<<25) /* given directly by the user */ > #define TRACK_LINEAR (1u<<26) > #define ALL_REV_FLAGS (((1u<<11)-1) | USER_GIVEN | TRACK_LINEAR) > +#define TOPO_WALK_EXPLORED (1u<<27) > +#define TOPO_WALK_INDEGREE (1u<<28) Should these two flags be included in ALL_REV_FLAGS? Should they be reset by reset_revision_walk? At least for the latter, I'd say yes, otherwise you can end up with missing revs in a subsequent topo-order revwalk. Mike