On 03.05.21 08:26, Mike Rapoport wrote:
On Fri, Apr 30, 2021 at 07:24:37PM +0800, Kefeng Wang wrote:
On 2021/4/30 17:51, Mike Rapoport wrote:
On Thu, Apr 29, 2021 at 06:22:55PM +0800, Kefeng Wang wrote:
On 2021/4/29 14:57, Mike Rapoport wrote:
Do you use SPARSMEM? If yes, what is your section size?
What is the value if CONFIG_FORCE_MAX_ZONEORDER in your configuration?
Yes,
CONFIG_SPARSEMEM=y
CONFIG_SPARSEMEM_STATIC=y
CONFIG_FORCE_MAX_ZONEORDER = 11
CONFIG_PAGE_OFFSET=0xC0000000
CONFIG_HAVE_ARCH_PFN_VALID=y
CONFIG_HIGHMEM=y
#define SECTION_SIZE_BITS 26
#define MAX_PHYSADDR_BITS 32
#define MAX_PHYSMEM_BITS 32
With the patch, the addr is aligned, but the panic still occurred,
Is this the same panic at move_freepages() for range [de600, de7ff]?
Do you enable CONFIG_ARM_LPAE?
no, the CONFIG_ARM_LPAE is not set, and yes with same panic at
move_freepages at
start_pfn/end_pfn [de600, de7ff], [de600000, de7ff000] : pfn =de600, page
=ef3cc000, page-flags = ffffffff, pfn2phy = de600000
__free_memory_core, range: 0xb0200000 - 0xc0000000, pfn: b0200 - b0200
__free_memory_core, range: 0xcc000000 - 0xdca00000, pfn: cc000 - b0200
__free_memory_core, range: 0xde700000 - 0xdea00000, pfn: de700 - b0200
Hmm, [de600, de7ff] is not added to the free lists which is correct. But
then it's unclear how the page for de600 gets to move_freepages()...
Can't say I have any bright ideas to try here...
Are we missing some checks (e.g., PageReserved()) that
pfn_valid_within() would have "caught" before?
--
Thanks,
David / dhildenb
