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-rw-r--r--etc/PROBLEMS6
1 files changed, 6 insertions, 0 deletions
diff --git a/etc/PROBLEMS b/etc/PROBLEMS
index 7934976896d..7be0e34397c 100644
--- a/etc/PROBLEMS
+++ b/etc/PROBLEMS
@@ -1833,6 +1833,12 @@ term/xterm.el) for more details.
** GNU/Linux
+*** GNU/Linux: profiler-report outputs nothing.
+
+A few versions of the Linux kernel have timer bugs that break CPU
+profiling; see Bug#34235. To fix the problem, upgrade to kernel
+versions 4.19.19 or 4.20.6, or later.
+
*** GNU/Linux: Process output is corrupted.
There is a bug in Linux kernel 2.6.10 PTYs that can cause emacs to