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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2014-07-21 13:35:10 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2014-09-07 16:24:45 -0700 |
| commit | ae867ff03d09c2aec56b0443b8b04e5a3fa1e336 (patch) | |
| tree | 5dcf8666e614728446264aee38f3e4265c8e549b /tools/testing/selftests/rcutorture/configs | |
| parent | 9e62b0efdcead5b66c0c006df2f19a449b22cf08 (diff) | |
| download | linux-ae867ff03d09c2aec56b0443b8b04e5a3fa1e336.tar.bz2 | |
rcutorture: Specify MAXSMP=y for TREE01
Setting CONFIG_MAXSMP=y causes cpumasks to be moved offstack, which
introduces the possibility of NULL cpumask_var_t pointers. This commit
therefore enables CONFIG_MAXSMP=y in TREE01 to increase test coverage.
However, because CONFIG_MAXSMP=y implies 8192 CPUs, we need to use
the maxcpus= boot parameter to limit the number of CPUs to something
reasonable, which in turn requires updating the scripts to handle this.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Pranith Kumar <bobby.prani@gmail.com>
Diffstat (limited to 'tools/testing/selftests/rcutorture/configs')
| -rw-r--r-- | tools/testing/selftests/rcutorture/configs/rcu/TREE01 | 4 | ||||
| -rw-r--r-- | tools/testing/selftests/rcutorture/configs/rcu/TREE01.boot | 2 |
2 files changed, 2 insertions, 4 deletions
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE01 b/tools/testing/selftests/rcutorture/configs/rcu/TREE01 index 063b7079c621..38e3895759dd 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/TREE01 +++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE01 @@ -1,5 +1,4 @@ CONFIG_SMP=y -CONFIG_NR_CPUS=8 CONFIG_PREEMPT_NONE=n CONFIG_PREEMPT_VOLUNTARY=n CONFIG_PREEMPT=y @@ -10,8 +9,7 @@ CONFIG_NO_HZ_FULL=n CONFIG_RCU_FAST_NO_HZ=y CONFIG_RCU_TRACE=y CONFIG_HOTPLUG_CPU=y -CONFIG_RCU_FANOUT=8 -CONFIG_RCU_FANOUT_EXACT=n +CONFIG_MAXSMP=y CONFIG_RCU_NOCB_CPU=y CONFIG_RCU_NOCB_CPU_ZERO=y CONFIG_DEBUG_LOCK_ALLOC=n diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE01.boot b/tools/testing/selftests/rcutorture/configs/rcu/TREE01.boot index 0fc8a3428938..adc3abc82fb8 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/TREE01.boot +++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE01.boot @@ -1 +1 @@ -rcutorture.torture_type=rcu_bh +rcutorture.torture_type=rcu_bh maxcpus=8 |