Make alldefconfig isn't producing passing results on amd64 for me
either.

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https://bugs.launchpad.net/bugs/1893024

Title:
  failing ftrace self tests from 5.7+ onwards

Status in Linux:
  Confirmed
Status in ubuntu-kernel-tests:
  New
Status in linux package in Ubuntu:
  New
Status in linux source package in Groovy:
  New

Bug description:
  Ftrace regression tests in tools/testing/selftests/ftrace are picking
  up regressions in 5.7+ - not sure if these are kernel regressions or
  bugs in ftrace selftests.

  I'm seeing the following ftrace test regresions:

  5.9-rc2 test failures with ARM64 in a 4GM VM + 8 CPUs

  Test 12, "Generic dynamic event - selective clear (compatibility)"
  Test 39, "Kprobe event with comm arguments"
  Test 40, "Kprobe event string type argument"
  Test 41, "Kprobe event symbol argument"
  Test 43, "Kprobe dynamic event with arguments"
  Test 44, "Kprobes event arguments with types"
  Test 45, "Kprobe event user-memory access"
  Test 47, "Kprobe dynamic event with function tracer" 
  Test 48, "Kprobe dynamic event - probing module"
  Test 51, "Kretprobe dynamic event with arguments"

  5.8.3, 5.7.17 test failures:
  Test 45, "Kprobe event user-memory access"
  Test 48, "Kprobe dynamic event - probing module"
  Test 51, "Kretprobe dynamic event with arguments"

  These tests were working fine when I tested with 5.4.60, 5.5.19,
  5.6.19, so these are definite regressions

  Attached is a spreadsheet of the full set of test results

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