* etc/PROBLEMS: Mention profiler-report bug (Bug#34235).

diff --git a/etc/PROBLEMS b/etc/PROBLEMS
index cab087631c700fcb859172fbf5add0c049b080f0..00583f016d13823b5b7c649f5bd04d06d739c75c 100644 (file)
--- a/etc/PROBLEMS
+++ b/etc/PROBLEMS
@@ -1850,6 +1850,12 @@ 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