20 tests failing on 5.7.0: vsyscall_reverse_next and so on

On bare metal Intel(R) Core(TM) i9-10900 CPU @ 2.80GHz with Linux kernel v6.5.7 there are 20 test failures:

0% tests passed, 20 tests failed out of 20

Total Test time (real) = 2759.49 sec

The following tests FAILED:
        1236 - vsyscall_reverse_next (Failed)
        1237 - vsyscall_reverse_next-no-syscallbuf (Failed)
        1242 - watchpoint_at_sched (Failed)
        1243 - watchpoint_at_sched-no-syscallbuf (Failed)
        1244 - watchpoint_before_signal (Failed)
        1245 - watchpoint_before_signal-no-syscallbuf (Failed)
        1370 - replay_serve_files (Failed)
        1371 - replay_serve_files-no-syscallbuf (Failed)
        1392 - reverse_step_signal (Failed)
        1393 - reverse_step_signal-no-syscallbuf (Failed)
        1396 - reverse_watchpoint (Failed)
        1397 - reverse_watchpoint-no-syscallbuf (Failed)
        1430 - step_signal (Failed)
        1431 - step_signal-no-syscallbuf (Failed)
        1442 - tick0 (Failed)
        1443 - tick0-no-syscallbuf (Failed)
        1444 - tick0_less (Failed)
        1445 - tick0_less-no-syscallbuf (Failed)
        1470 - watchpoint_unaligned2 (Failed)
        1471 - watchpoint_unaligned2-no-syscallbuf (Failed)
Errors while running CTest
Output from these tests are in: /usr/lib64/rr/testsuite/obj/Testing/Temporary/LastTest.log
Use "--rerun-failed --output-on-failure" to re-run the failed cases verbosely.

I run ctest -VV -vv first and then ctest --rerun-failed -VV -vv as requested in #3625.
Generated LastTest.log is there LastTest.9.log

Start with LastTest.9.log and rerun the listed failures using ctest --rerun-failed -VV -vv in the rr test build. Compare the paired syscallbuf and non-syscallbuf cases, beginning with the first failing test, vsyscall_reverse_next. Done means identifying the common cause and restoring the affected tests on the reported Linux kernel and CPU.