https://git.reactos.org/?p=reactos.git;a=commitdiff;h=fb07802956b5d10363b43d0d0e2ea4427764779f
commit fb07802956b5d10363b43d0d0e2ea4427764779f Author: Jérôme Gardou <[email protected]> AuthorDate: Mon Dec 7 09:55:12 2020 +0100 Commit: Jérôme Gardou <[email protected]> CommitDate: Wed Feb 3 09:41:22 2021 +0100 [NTOS:MM] Make the situation about dirty pages in image map a bit clearer --- ntoskrnl/mm/section.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/ntoskrnl/mm/section.c b/ntoskrnl/mm/section.c index b38dc0bfc4a..d71bc490934 100644 --- a/ntoskrnl/mm/section.c +++ b/ntoskrnl/mm/section.c @@ -1082,7 +1082,7 @@ MmUnsharePageEntrySectionSegment(PMEMORY_AREA MemoryArea, return FALSE; } - if (IS_DIRTY_SSE(Entry) && !(Segment->Image.Characteristics & IMAGE_SCN_MEM_SHARED)) + if (Dirty && (MemoryArea->VadNode.u.VadFlags.VadType != VadImageMap)) { ASSERT(!Segment->WriteCopy); ASSERT(MmGetSavedSwapEntryPage(Page) == 0); @@ -1092,6 +1092,9 @@ MmUnsharePageEntrySectionSegment(PMEMORY_AREA MemoryArea, return FALSE; } + /* Only valid case for shared dirty pages is shared image section */ + ASSERT(!Dirty || (Segment->Image.Characteristics & IMAGE_SCN_MEM_SHARED)); + SwapEntry = MmGetSavedSwapEntryPage(Page); if (Dirty && !SwapEntry) {
