src/runtime/proc.go | 9 ++++++++-

diff --git a/src/runtime/proc.go b/src/runtime/proc.go
index 7bc2a92590755ee3b1c40255d00c760fa30e927b..a144b36ec80b75cea5a41c7dabadceeaa18e9fcb 100644
--- a/src/runtime/proc.go
+++ b/src/runtime/proc.go
@@ -4686,7 +4686,7 @@ 	if mp != nil && mp.profilehz == 0 {
 		return
 	}
 
-	// On mips{,le}, 64bit atomics are emulated with spinlocks, in
+	// On mips{,le}/arm, 64bit atomics are emulated with spinlocks, in
 	// runtime/internal/atomic. If SIGPROF arrives while the program is inside
 	// the critical section, it creates a deadlock (when writing the sample).
 	// As a workaround, create a counter of SIGPROFs while in critical section
@@ -4698,6 +4698,13 @@ 			if hasPrefix(funcname(f), "runtime/internal/atomic") {
 				cpuprof.lostAtomic++
 				return
 			}
+		}
+		if GOARCH == "arm" && goarm < 7 && GOOS == "linux" && pc&0xffff0000 == 0xffff0000 {
+			// runtime/internal/atomic functions call into kernel
+			// helpers on arm < 7. See
+			// runtime/internal/atomic/sys_linux_arm.s.
+			cpuprof.lostAtomic++
+			return
 		}
 	}