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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: LvGGsISfXAMnmaHbggXzBM4ccll325yGWlpNBIhfe2U2ZA9ENI7hkHsfiLOfVeVb1wWyOjCJgWujxhKUYrxTwgY/ElbNtUMSR1A7IIqstZSNRgsozjFXCNIwNWfd5VvjuFW6GnGKrIevrDQ4KCnNkFWwUCaFVdKC94FoAlGIEgQw++M50M2lcLi9311LW56mTLzth5h9Rj1SBhAMyk/3pgd6573jD14R8PFtdC3Rpro04IkxvxOZEiLf9xEqw8B6hsqMUVfxANOoCpN3cTnCD5jEbFocAJg5uIJ5VcpS6bQjc9NGvWXXj5jAkiQRzCKhQX+8NgzJYZVUSbk3y3uelEMiiHvVCKUMT60ElhPwfREta4b8wfI7ZhmQ0OpaL1fK2j5Ghz1rJx4Z2DEaxCsVx/iuyZvQt9+YgiHIb5GiU9gFyI9MdsA28jY+mvvNJySj X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 17 Apr 2026 12:47:25.4906 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 15c2029c-ef28-4b9f-6fa5-08de9c7f7a10 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[4.158.2.129];Helo=[outbound-uk1.az.dlp.m.darktrace.com] X-MS-Exchange-CrossTenant-AuthSource: AM3PEPF0000A792.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS4PR08MB7656 On 4/6/26 7:46 PM, Mike Rapoport wrote: > From: "Mike Rapoport (Microsoft)" > > Access of poisoned memory causes SIGBUS, which terminates the > hugetlb-read-hwpoison test prematurely. > > Add a dummy SIGBUS handler to allow the test to continue regardless of > SIGBUS. > > Signed-off-by: Mike Rapoport (Microsoft) > --- I have tested this patch and it behaves as intended. 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]);