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charset="utf-8" From: "Paul E. McKenney" Mixing different flavors of RCU readers is forbidden, for example, you should not use srcu_read_lock() and srcu_read_lock_nmisafe() on the same srcu_struct structure. There are checks for this, but these checks are not tested on a regular basis. This commit therefore adds such tests to srcu_lockdep.sh. Signed-off-by: Paul E. McKenney Signed-off-by: Joel Fernandes --- .../selftests/rcutorture/bin/srcu_lockdep.sh | 31 +++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/tools/testing/selftests/rcutorture/bin/srcu_lockdep.sh b/tools= /testing/selftests/rcutorture/bin/srcu_lockdep.sh index b94f6d3445c6..208be7d09a61 100755 --- a/tools/testing/selftests/rcutorture/bin/srcu_lockdep.sh +++ b/tools/testing/selftests/rcutorture/bin/srcu_lockdep.sh @@ -79,6 +79,37 @@ do done done =20 +# Test lockdep-enabled testing of mixed SRCU readers. +for val in 0x1 0xf +do + err=3D + tools/testing/selftests/rcutorture/bin/kvm.sh --allcpus --duration 5s --c= onfigs "SRCU-P" --kconfig "CONFIG_FORCE_NEED_SRCU_NMI_SAFE=3Dy" --bootargs = "rcutorture.reader_flavor=3D$val" --trust-make --datestamp "$ds/$val" > "$T= /kvm.sh.out" 2>&1 + ret=3D$? + mv "$T/kvm.sh.out" "$RCUTORTURE/res/$ds/$val" + if ! grep -q '^CONFIG_PROVE_LOCKING=3Dy' .config + then + echo "rcu_torture_init_srcu_lockdep:Error: CONFIG_PROVE_LOCKING disabled= in rcutorture SRCU-P scenario" + nerrs=3D$((nerrs+1)) + err=3D1 + fi + if test "$val" -eq 0xf && test "$ret" -eq 0 + then + err=3D1 + echo -n Unexpected success for > "$RCUTORTURE/res/$ds/$val/kvm.sh.err" + fi + if test "$val" -eq 0x1 && test "$ret" -ne 0 + then + err=3D1 + echo -n Unexpected failure for > "$RCUTORTURE/res/$ds/$val/kvm.sh.err" + fi + if test -n "$err" + then + grep "rcu_torture_init_srcu_lockdep: test_srcu_lockdep =3D " "$RCUTORTUR= E/res/$ds/$val/SRCU-P/console.log" | sed -e 's/^.*rcu_torture_init_srcu_loc= kdep://' >> "$RCUTORTURE/res/$ds/$val/kvm.sh.err" + cat "$RCUTORTURE/res/$ds/$val/kvm.sh.err" + nerrs=3D$((nerrs+1)) + fi +done + # Set up exit code. if test "$nerrs" -ne 0 then --=20 2.43.0