Index: lib/tsan/rtl/tsan_rtl_thread.cc
===================================================================
--- lib/tsan/rtl/tsan_rtl_thread.cc
+++ lib/tsan/rtl/tsan_rtl_thread.cc
@@ -252,14 +252,13 @@
       // Check that the thr object is in tls;
       const uptr thr_beg = (uptr)thr;
       const uptr thr_end = (uptr)thr + sizeof(*thr);
-      CHECK_GE(thr_beg, tls_addr);
-      CHECK_LE(thr_beg, tls_addr + tls_size);
-      CHECK_GE(thr_end, tls_addr);
-      CHECK_LE(thr_end, tls_addr + tls_size);
-      // Since the thr object is huge, skip it.
-      MemoryRangeImitateWrite(thr, /*pc=*/ 2, tls_addr, thr_beg - tls_addr);
-      MemoryRangeImitateWrite(thr, /*pc=*/ 2,
-          thr_end, tls_addr + tls_size - thr_end);
+      if (thr_beg > tls_addr && thr_beg < tls_addr + tls_size &&
+          thr_end < tls_addr && thr_end < tls_addr + tls_size) {
+        // Since the thr object is huge, skip it.
+        MemoryRangeImitateWrite(thr, /*pc=*/2, tls_addr, thr_beg - tls_addr);
+        MemoryRangeImitateWrite(thr, /*pc=*/2, thr_end,
+                                tls_addr + tls_size - thr_end);
+      }
     }
   }
 #endif