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Before applying the patch, the HWPOISON test terminated with a Bus error when accessing poisoned memory. After applying the patch, the test catches SIGBUS, reports it and continues execution without terminating prematurely. Tested-by: Sarthak Sharma > tools/testing/selftests/mm/hugetlb-read-hwpoison.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/tools/testing/selftests/mm/hugetlb-read-hwpoison.c b/tools/testing/selftests/mm/hugetlb-read-hwpoison.c > index 46230462ad48..6bbf15f78061 100644 > --- a/tools/testing/selftests/mm/hugetlb-read-hwpoison.c > +++ b/tools/testing/selftests/mm/hugetlb-read-hwpoison.c > @@ -10,6 +10,7 @@ > #include > #include > #include > +#include > > #include "kselftest.h" > > @@ -261,6 +262,11 @@ static int create_hugetlbfs_file(struct statfs *file_stat) > return -1; > } > > +static void sigbus_handler(int sig) > +{ > + printf(PREFIX "received SIGBUS\n"); > +} > + > int main(void) > { > int fd; > @@ -273,6 +279,7 @@ int main(void) > }; > size_t i; > > + signal(SIGBUS, sigbus_handler); > for (i = 0; i < ARRAY_SIZE(wr_chunk_sizes); ++i) { > printf("Write/read chunk size=0x%lx\n", > wr_chunk_sizes[i]);