Index: compiler-rt/lib/lsan/lsan.cc
===================================================================
--- compiler-rt/lib/lsan/lsan.cc
+++ compiler-rt/lib/lsan/lsan.cc
@@ -65,6 +65,21 @@
   if (common_flags()->help) parser.PrintFlagDescriptions();
 }
 
+static void OnStackUnwind(const SignalContext &sig, const void *,
+                          BufferedStackTrace *stack) {
+  GetStackTraceWithPcBpAndContext(stack, kStackTraceMax, sig.pc, sig.bp,
+                                  sig.context,
+                                  common_flags()->fast_unwind_on_fatal);
+}
+
+void LsanOnDeadlySignal(int signo, void *siginfo, void *context) {
+  StartReportDeadlySignal();
+  SpinMutexLock l(&CommonSanitizerReportMutex);
+  SignalContext sig(siginfo, context);
+  ReportDeadlySignal(sig, GetCurrentThread(), &OnStackUnwind, nullptr);
+  Die();
+}
+
 extern "C" void __lsan_init() {
   CHECK(!lsan_init_is_running);
   if (lsan_inited)
@@ -80,6 +95,7 @@
   InitTlsSize();
   InitializeInterceptors();
   InitializeThreadRegistry();
+  InstallDeadlySignalHandlers(LsanOnDeadlySignal);
   u32 tid = ThreadCreate(0, 0, true);
   CHECK_EQ(tid, 0);
   ThreadStart(tid, GetTid());
Index: compiler-rt/lib/lsan/lsan_interceptors.cc
===================================================================
--- compiler-rt/lib/lsan/lsan_interceptors.cc
+++ compiler-rt/lib/lsan/lsan_interceptors.cc
@@ -401,9 +401,14 @@
   REAL(_exit)(status);
 }
 
+#define COMMON_INTERCEPT_FUNCTION(name) INTERCEPT_FUNCTION(name)
+#include "sanitizer_common/sanitizer_signal_interceptors.inc"
+
 namespace __lsan {
 
 void InitializeInterceptors() {
+  InitializeSignalInterceptors();
+
   INTERCEPT_FUNCTION(malloc);
   INTERCEPT_FUNCTION(free);
   LSAN_MAYBE_INTERCEPT_CFREE;
Index: compiler-rt/test/sanitizer_common/TestCases/Linux/allow_user_segv.cc
===================================================================
--- compiler-rt/test/sanitizer_common/TestCases/Linux/allow_user_segv.cc
+++ compiler-rt/test/sanitizer_common/TestCases/Linux/allow_user_segv.cc
@@ -18,7 +18,6 @@
 // clang-format on
 
 // Remove when fixed: https://github.com/google/sanitizers/issues/637
-// XFAIL: lsan
 // XFAIL: msan
 // XFAIL: tsan
 // XFAIL: ubsan
Index: compiler-rt/test/sanitizer_common/TestCases/Linux/assert.cc
===================================================================
--- compiler-rt/test/sanitizer_common/TestCases/Linux/assert.cc
+++ compiler-rt/test/sanitizer_common/TestCases/Linux/assert.cc
@@ -7,11 +7,11 @@
 // RUN: %env_tool_opts=handle_abort=1 not         %run %t 2>&1 | FileCheck --check-prefix=CHECK1 %s
 // clang-format on
 
-// FIXME: implement in other sanitizers, not just asan.
+// FIXME: implement in other sanitizers.
 // XFAIL: msan
-// XFAIL: lsan
 // XFAIL: tsan
 // XFAIL: ubsan
+
 #include <assert.h>
 #include <stdio.h>
 #include <sanitizer/asan_interface.h>
Index: compiler-rt/test/sanitizer_common/TestCases/Linux/ill.cc
===================================================================
--- compiler-rt/test/sanitizer_common/TestCases/Linux/ill.cc
+++ compiler-rt/test/sanitizer_common/TestCases/Linux/ill.cc
@@ -7,9 +7,8 @@
 // RUN: %env_tool_opts=handle_sigill=1 not         %run %t 2>&1 | FileCheck --check-prefix=CHECK1 %s
 // clang-format on
 
-// FIXME: implement in other sanitizers, not just asan.
+// FIXME: implement in other sanitizers.
 // XFAIL: msan
-// XFAIL: lsan
 // XFAIL: tsan
 // XFAIL: ubsan
 //
Index: compiler-rt/test/sanitizer_common/TestCases/Posix/dedup_token_length_test.cc
===================================================================
--- compiler-rt/test/sanitizer_common/TestCases/Posix/dedup_token_length_test.cc
+++ compiler-rt/test/sanitizer_common/TestCases/Posix/dedup_token_length_test.cc
@@ -9,7 +9,6 @@
 // REQUIRES: stable-runtime
 // FIXME: implement SEGV handler in other sanitizers, not just asan.
 // XFAIL: msan
-// XFAIL: lsan
 // XFAIL: tsan
 // XFAIL: ubsan
 
Index: compiler-rt/test/sanitizer_common/TestCases/Posix/dump_instruction_bytes.cc
===================================================================
--- compiler-rt/test/sanitizer_common/TestCases/Posix/dump_instruction_bytes.cc
+++ compiler-rt/test/sanitizer_common/TestCases/Posix/dump_instruction_bytes.cc
@@ -8,7 +8,10 @@
 // clang-format on
 
 // REQUIRES: x86-target-arch
-// XFAIL: lsan, msan, tsan, ubsan
+// FIXME: implement in other sanitizers.
+// XFAIL: msan
+// XFAIL: tsan
+// XFAIL: ubsan
 
 int main() {
 #if defined(__x86_64__)
Index: compiler-rt/test/sanitizer_common/TestCases/Posix/fpe.cc
===================================================================
--- compiler-rt/test/sanitizer_common/TestCases/Posix/fpe.cc
+++ compiler-rt/test/sanitizer_common/TestCases/Posix/fpe.cc
@@ -5,7 +5,6 @@
 // RUN: %env_tool_opts=handle_sigfpe=1 not         %run %t 2>&1 | FileCheck --check-prefix=CHECK1 %s
 // FIXME: implement in other sanitizers, not just asan.
 // XFAIL: msan
-// XFAIL: lsan
 // XFAIL: tsan
 // XFAIL: ubsan
 //
Index: compiler-rt/test/sanitizer_common/TestCases/Posix/sanitizer_set_report_fd_test.cc
===================================================================
--- compiler-rt/test/sanitizer_common/TestCases/Posix/sanitizer_set_report_fd_test.cc
+++ compiler-rt/test/sanitizer_common/TestCases/Posix/sanitizer_set_report_fd_test.cc
@@ -7,7 +7,6 @@
 // REQUIRES: stable-runtime
 // FIXME: implement SEGV handler in other sanitizers, not just asan.
 // XFAIL: msan
-// XFAIL: lsan
 // XFAIL: tsan
 // XFAIL: ubsan