diff --git a/remotefilelog/remotefilectx.py b/remotefilelog/remotefilectx.py
--- a/remotefilelog/remotefilectx.py
+++ b/remotefilelog/remotefilectx.py
@@ -9,6 +9,7 @@
 from mercurial.i18n import _
 from mercurial.node import bin, hex, nullid, nullrev
 from mercurial import context, util, error, ancestor, phases, extensions
+from . import shallowutil
 
 propertycache = util.propertycache
 conduit = None
@@ -240,6 +241,16 @@
         if self._verifylinknode(revs, linknode):
             return linknode
 
+        commonlogkwargs = {
+            'revs': ' '.join([hex(cl.node(rev)) for rev in revs]),
+            'fnode': hex(fnode),
+            'filepath': path,
+            'user': shallowutil.getusername(repo.ui),
+            'reponame': shallowutil.getreponame(repo.ui),
+        }
+
+        repo.ui.log('linkrevfixup', 'adjusting linknode', **commonlogkwargs)
+
         pc = repo._phasecache
         seenpublic = False
         iteranc = cl.ancestors(revs, inclusive=inclusive)
@@ -296,7 +307,7 @@
                 # commits
                 if repo.ui.configbool('fastlog', 'enabled'):
                     lnode = self._linknodeviafastlog(repo, path, ancrev, fnode,
-                                                     cl, mfl)
+                                                     cl, mfl, commonlogkwargs)
                     if lnode:
                         return lnode
                 seenpublic = True
@@ -320,7 +331,8 @@
 
         return linknode
 
-    def _linknodeviafastlog(self, repo, path, srcrev, fnode, cl, mfl):
+    def _linknodeviafastlog(self, repo, path, srcrev, fnode, cl, mfl,
+                            commonlogkwargs):
         reponame = repo.ui.config('fbconduit', 'reponame')
         logmsg = ''
         if self._conduit is None:
@@ -351,7 +363,7 @@
             logmsg = 'fastlog failed (%s)' % e
             return None
         finally:
-            repo.ui.log('linkrevfixup', logmsg)
+            repo.ui.log('linkrevfixup', logmsg, **commonlogkwargs)
 
 
     def _verifylinknode(self, revs, linknode):
diff --git a/remotefilelog/shallowutil.py b/remotefilelog/shallowutil.py
--- a/remotefilelog/shallowutil.py
+++ b/remotefilelog/shallowutil.py
@@ -477,3 +477,15 @@
 def peercapabilities(peer):
     """return capabilities of a peer"""
     return trygetattr(peer, ('_capabilities', 'capabilities'))()
+
+def getusername(ui):
+    try:
+        return util.shortuser(ui.username())
+    except Exception:
+        return 'unknown'
+
+def getreponame(ui):
+    reponame = ui.config('paths', 'default')
+    if reponame:
+        return os.path.basename(reponame)
+    return "unknown"