RHEL 7.7: perf does not report kernel symbols

Solution Verified - Updated -

Issue

  • perf does not report kernel symbols in kernel-3.10.0-1062.el7.
# uname -a
Linux localhost 3.10.0-1062.12.1.el7.x86_64 #1 SMP Thu Dec 12 06:44:49 EST 2019 x86_64 x86_64 x86_64 GNU/Linux

# perf report
  Children      Self  Command         Shared Object                  Symbol                                                                         
+   22.07%     0.00%  swapper         [unknown]                      [k] 0xffffffff844000d5                                                         
+   21.06%     0.00%  swapper         [unknown]                      [k] 0xffffffff8450158a                                                         
+   21.06%     0.00%  swapper         [unknown]                      [k] 0xffffffff84437c6e                                                         
+   20.75%     0.00%  swapper         [unknown]                      [k] 0xffffffff849c1b5e                                                         
+   18.71%     0.00%  swapper         [unknown]                      [k] 0xffffffff849c19f5                                                         
+   18.07%    18.07%  swapper         [kernel.kallsyms]              [k] intel_idle                                                                 
+   18.00%     0.00%  swapper         [unknown]                      [k] 0xffffffff84b82d94                                                         
+   14.10%     0.00%  swapper         [unknown]                      [k] 0xffffffff8445a0b7                                                         
+    8.68%     0.00%  qemu-kvm        [unknown]                      [.] 0xffffffff84b8dede                                                         
+    7.97%     0.00%  swapper         [unknown]                      [k] 0xffffffff85188885                                                         
+    7.97%     0.00%  swapper         [unknown]                      [k] 0xffffffff8518872f                                                         
+    7.97%     0.00%  swapper         [unknown]                      [k] 0xffffffff851891cb                                                         
+    7.97%     0.00%  swapper         [unknown]                      [k] 0xffffffff84b69b77                                                        

Environment

  • Red Hat Enterprise Linux 7.7
  • kernel-3.10.0-1062.el7

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