On Wed, Jan 29, 2020 at 10:11 PM Sandipan Das sandipan@linux.ibm.com wrote:
Hi David,
On 30/01/20 2:30 am, David Rientjes wrote:
On Thu, 23 Jan 2020, Sandipan Das wrote:
For powerpc64, either 16MB/16GB or 2MB/1GB huge pages are supported depending on the MMU type (Hash or Radix). I was just running these tests on a powerpc64 system with Hash MMU and ran into problems because the tests assume that the hugepage size is always 2MB. Can you determine the huge page size at runtime?
I assume this is only testing failures of the tools/testing/selftests additions that hardcode 2MB paths and not a kernel problem? In other words, you can still boot, reserve, alloc, and free hugetlb pages on ppc after this patchset without using the selftests?
Yes, its just the hardcoded paths. I didn't run into any kernel problems.
Sandipan, I updated the tests to not assume 2MB page size, but I'm having trouble getting a setup with a non-2MB default size to test with. I'm uploading v11 of the series shortly, please let me know if the problem persists.
- Sandipan