Merge branch 'master' into tcp-matchers-submit

1 files changed, 3 insertions, 1 deletions

diff --git a/test/syscalls/linux/readv.cc b/test/syscalls/linux/readv.cc
index 4069cbc7e..baaf9f757 100644
--- a/test/syscalls/linux/readv.cc
+++ b/test/syscalls/linux/readv.cc
@@ -254,7 +254,9 @@ TEST_F(ReadvTest, IovecOutsideTaskAddressRangeInNonemptyArray) {
 // This test depends on the maximum extent of a single readv() syscall, so
 // we can't tolerate interruption from saving.
 TEST(ReadvTestNoFixture, TruncatedAtMax_NoRandomSave) {
-  // Ensure that we won't be interrupted by ITIMER_PROF.
+  // Ensure that we won't be interrupted by ITIMER_PROF. This is particularly
+  // important in environments where automated profiling tools may start
+  // ITIMER_PROF automatically.
   struct itimerval itv = {};
   auto const cleanup_itimer =
       ASSERT_NO_ERRNO_AND_VALUE(ScopedItimer(ITIMER_PROF, itv));