diff --git a/src/autodep/record.hh b/src/autodep/record.hh
index e028c206..627b0218 100644
--- a/src/autodep/record.hh
+++ b/src/autodep/record.hh
@@ -97,7 +97,7 @@ private :
 		else                 return IMsgBuf().receive<JobExecRpcReply>(report_fd()) ;
 	}
 	//
-	void _report_access( JobExecRpcReq&& jerr                                                 ) const ;
+	void _report_access( JobExecRpcReq&& jerr                                                   ) const ;
 	void _report_access( ::string&& f , FileInfo fi , Accesses a , bool write , ::string&& c={} ) const {
 		_report_access({ Proc::Access , {{::move(f),fi}} , {.write=Maybe&write,.accesses=a} , ::move(c) }) ;
 	}
diff --git a/src/lmakeserver/codec.cc b/src/lmakeserver/codec.cc
index 22144ba5..da308249 100644
--- a/src/lmakeserver/codec.cc
+++ b/src/lmakeserver/codec.cc
@@ -281,8 +281,10 @@ namespace Codec {
 			case JobMngtProc::Decode : jmrr = cc.decode() ; break ;
 			case JobMngtProc::Encode : jmrr = cc.encode() ; break ;
 		DF}
-		jmrr.fd = cc.fd ;                               // seq_id will be filled in by send_reply
-		Backends::send_reply( cc.job , ::move(jmrr) ) ;
+		if (cc.fd) {
+			jmrr.fd = cc.fd ;                               // seq_id will be filled in by send_reply
+			Backends::send_reply( cc.job , ::move(jmrr) ) ;
+		}
 	}
 
 }
diff --git a/src/lmakeserver/job.cc b/src/lmakeserver/job.cc
index abfabe53..43428b09 100644
--- a/src/lmakeserver/job.cc
+++ b/src/lmakeserver/job.cc
@@ -911,6 +911,10 @@ namespace Engine {
 		}
 	Run :
 		trace("run",pre_reason,ri,run_status) ;
+		if ( ri.state.missing_dsk) {
+			ri.reset() ;
+			goto RestartAnalysis ;
+		}
 		SWEAR(!ri.state.missing_dsk) ;                                                          // cant run if we are missing some deps on disk
 		if (rule->n_submits) {
 			if (ri.n_submits>=rule->n_submits) {
diff --git a/src/lmakeserver/job.x.hh b/src/lmakeserver/job.x.hh
index dee94dd4..b8d00421 100644
--- a/src/lmakeserver/job.x.hh
+++ b/src/lmakeserver/job.x.hh
@@ -232,7 +232,7 @@ namespace Engine {
 	private :
 		Step _step:3 = {} ;                                              //          3 bits
 	} ;
-	static_assert(sizeof(JobReqInfo)==48) ;                              // check expected size XXX : optimize size, can be 32
+	static_assert(sizeof(JobReqInfo)==48) ;                              // check expected size, XXX : optimize size, can be 32
 
 }
 
diff --git a/src/lmakeserver/main.cc b/src/lmakeserver/main.cc
index c030e02b..e82607d5 100644
--- a/src/lmakeserver/main.cc
+++ b/src/lmakeserver/main.cc
@@ -376,10 +376,12 @@ bool/*interrupted*/ engine_loop() {
 						::vector<Dep> deps ; deps.reserve(ecjm.deps.size()) ;
 						for( auto const& [dn,dd] : ecjm.deps ) deps.emplace_back(Node(dn),dd) ;
 						JobMngtRpcReply jmrr = je.job_info(ecjm.proc,deps) ;
-						jmrr.fd = ecjm.fd ;                                                // seq_id will be filled in by send_reply
-						//vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
-						Backends::send_reply( +je , ::move(jmrr) ) ;
-						//^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+						if (+ecjm.fd) {
+							jmrr.fd = ecjm.fd ;                                            // seq_id will be filled in by send_reply
+							//vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
+							Backends::send_reply( +je , ::move(jmrr) ) ;
+							//^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+						}
 					} break ;
 				DF}
 			} break ;
diff --git a/src/lmakeserver/node.x.hh b/src/lmakeserver/node.x.hh
index bacf7e64..6a867ff4 100644
--- a/src/lmakeserver/node.x.hh
+++ b/src/lmakeserver/node.x.hh
@@ -212,7 +212,7 @@ namespace Engine {
 		DepsIter& operator++(int) { return ++*this ; }
 		DepsIter& operator++(   ) {
 			if (i_chunk<hdr->hdr.sz)   i_chunk++ ;                         // go to next item in chunk
-			else                     { i_chunk = 0 ; hdr = hdr->next() ; } // go to next chunk }
+			else                     { i_chunk = 0 ; hdr = hdr->next() ; } // go to next chunk
 			return *this ;
 		}
 		// data
diff --git a/src/rpc_job.cc b/src/rpc_job.cc
index e3455d0f..f5538e9a 100644
--- a/src/rpc_job.cc
+++ b/src/rpc_job.cc
@@ -199,7 +199,7 @@ ::ostream& operator<<( ::ostream& os , JobMngtRpcReq const& jmrr ) {
 	return                             os <<')' ;
 }
 
-JobMngtRpcReq::JobMngtRpcReq( SI si , JI j , Fd fd_ , JobExecRpcReq&& jerr ) : seq_id{si} , job{j} , fd{fd_} {
+JobMngtRpcReq::JobMngtRpcReq( SI si , JI j , Fd fd_ , JobExecRpcReq&& jerr ) : seq_id{si} , job{j} , fd{jerr.sync?fd_:Fd()} {
 	switch (jerr.proc) {
 		case JobExecProc::Decode : proc = P::Decode ; ctx = ::move(jerr.ctx) ; file = ::move(jerr.files[0].first) ; txt = ::move(jerr.txt) ;                          break ;
 		case JobExecProc::Encode : proc = P::Encode ; ctx = ::move(jerr.ctx) ; file = ::move(jerr.files[0].first) ; txt = ::move(jerr.txt) ; min_len = jerr.min_len ; break ;