Paul Mackerras <paulus@xxxxxxxxxx> writes:
> On Wed, Oct 25, 2017 at 07:39:48AM +0000, Matthew Wilcox wrote:
>> Hang on, don't tell me you found this by inspection. Are you not
>> running the bitmap testcase, enabled by CONFIG_TEST_BITMAP? Either
>> that should be producing an error, or there's a missing test case, or
>> your inspection is wrong ...
Oops.
[ 1.907533] test_bitmap: test 13: input is '0-2047:128/256' OK, Time: 1359
[ 1.907596] set not equal 0 8
[ 1.907640] set not __equal 0 8
[ 1.907684] clear not equal 0 8
[ 1.907728] clear not __equal 0 8
[ 1.907772] set not equal 0 16
[ 1.907816] set not __equal 0 16
[ 1.907861] clear not equal 0 16
[ 1.907905] clear not __equal 0 16
[ 1.907949] set not equal 0 24
[ 1.907993] set not __equal 0 24
[ 1.908038] clear not equal 0 24
[ 1.908082] clear not __equal 0 24
...
[ snip ~30,000 lines ]
...
[ 3.345729] set not equal 1008 8
[ 3.345773] set not __equal 1008 8
[ 3.345818] clear not equal 1008 8
[ 3.345863] clear not __equal 1008 8
[ 3.345909] test_bitmap: all 460506 tests passed
^^^^^^^^^^^^^^^^^^^^^^^
O_o
With the patch:
[ 1.904393] test_bitmap: test 13: input is '0-2047:128/256' OK, Time: 1359
[ 1.916270] test_bitmap: all 460506 tests passed
cheers
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