diff --git a/lld/ELF/OutputSections.cpp b/lld/ELF/OutputSections.cpp
--- a/lld/ELF/OutputSections.cpp
+++ b/lld/ELF/OutputSections.cpp
@@ -353,7 +353,7 @@
   if (nonZeroFiller)
     fill(buf, sections.empty() ? size : sections[0]->outSecOff, filler);
 
-  parallelForEachN(0, sections.size(), [&](size_t i) {
+  for (size_t i = 0, end = sections.size(); i != end; ++i) {
     InputSection *isec = sections[i];
     isec->writeTo<ELFT>(buf);
 
@@ -371,7 +371,7 @@
       } else
         fill(start, end - start, filler);
     }
-  });
+  }
 
   // Linker scripts may have BYTE()-family commands with which you
   // can write arbitrary bytes to the output. Process them if any.
diff --git a/lld/ELF/Writer.cpp b/lld/ELF/Writer.cpp
--- a/lld/ELF/Writer.cpp
+++ b/lld/ELF/Writer.cpp
@@ -2881,17 +2881,31 @@
 // Write section contents to a mmap'ed file.
 template <class ELFT> void Writer<ELFT>::writeSections() {
   llvm::TimeTraceScope timeScope("Write sections");
+  SmallVector<OutputSection *, 0> vec;
 
   // In -r or --emit-relocs mode, write the relocation sections first as in
   // ELf_Rel targets we might find out that we need to modify the relocated
   // section while doing it.
   for (OutputSection *sec : outputSections)
     if (sec->type == SHT_REL || sec->type == SHT_RELA)
-      sec->writeTo<ELFT>(Out::bufferStart + sec->offset);
+      vec.push_back(sec);
+  llvm::sort(vec, [](OutputSection *a, OutputSection *b) {
+    return a->size > b->size;
+  });
+  parallelForEach(vec, [](OutputSection *sec) {
+    sec->writeTo<ELFT>(Out::bufferStart + sec->offset);
+  });
 
+  vec.clear();
   for (OutputSection *sec : outputSections)
     if (sec->type != SHT_REL && sec->type != SHT_RELA)
-      sec->writeTo<ELFT>(Out::bufferStart + sec->offset);
+      vec.push_back(sec);
+  llvm::sort(vec, [](OutputSection *a, OutputSection *b) {
+    return a->size > b->size;
+  });
+  parallelForEach(vec, [](OutputSection *sec) {
+    sec->writeTo<ELFT>(Out::bufferStart + sec->offset);
+  });
 
   // Finally, check that all dynamic relocation addends were written correctly.
   if (config->checkDynamicRelocs && config->writeAddends) {