https://git.reactos.org/?p=reactos.git;a=commitdiff;h=7d0d14965ee8547d94ff7ce483c097543f53e505
commit 7d0d14965ee8547d94ff7ce483c097543f53e505 Author: Jérôme Gardou <[email protected]> AuthorDate: Wed May 19 22:20:38 2021 +0200 Commit: Jérôme Gardou <[email protected]> CommitDate: Wed May 19 23:17:27 2021 +0200 [NTOS:MM] Do not map Process Working Set List in kernel space This is not needed anymore and causes havoc on amd64 --- ntoskrnl/mm/ARM3/procsup.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) diff --git a/ntoskrnl/mm/ARM3/procsup.c b/ntoskrnl/mm/ARM3/procsup.c index 5f24a8a0b95..c7abed0c794 100644 --- a/ntoskrnl/mm/ARM3/procsup.c +++ b/ntoskrnl/mm/ARM3/procsup.c @@ -916,7 +916,7 @@ MmInitializeProcessAddressSpace(IN PEPROCESS Process, PWCHAR Source; PCHAR Destination; USHORT Length = 0; - MMPTE TempPte; + #if (_MI_PAGING_LEVELS >= 3) PMMPPE PointerPpe; #endif @@ -1003,13 +1003,6 @@ MmInitializeProcessAddressSpace(IN PEPROCESS Process, /* Now initialize the working set list */ MiInitializeWorkingSetList(&Process->Vm); - /* Map the process working set in kernel space */ - /* FIXME: there should be no need */ - PointerPte = MiReserveSystemPtes(1, SystemPteSpace); - MI_MAKE_HARDWARE_PTE_KERNEL(&TempPte, PointerPte, MM_READWRITE, Process->WorkingSetPage); - MI_WRITE_VALID_PTE(PointerPte, TempPte); - Process->Vm.VmWorkingSetList = MiPteToAddress(PointerPte); - /* The rule is that the owner process is always in the FLINK of the PDE's PFN entry */ Pfn = MiGetPfnEntry(Process->Pcb.DirectoryTableBase[0] >> PAGE_SHIFT); ASSERT(Pfn->u4.PteFrame == MiGetPfnEntryIndex(Pfn)); @@ -1361,7 +1354,6 @@ MmDeleteProcessAddressSpace2(IN PEPROCESS Process) MiDecrementShareCount(Pfn2, Pfn1->u4.PteFrame); MiDecrementShareCount(Pfn1, Process->WorkingSetPage); ASSERT((Pfn1->u3.e2.ReferenceCount == 0) || (Pfn1->u3.e1.WriteInProgress)); - MiReleaseSystemPtes(MiAddressToPte(Process->Vm.VmWorkingSetList), 1, SystemPteSpace); /* Now map hyperspace and its page table */ PageFrameIndex = Process->Pcb.DirectoryTableBase[1] >> PAGE_SHIFT;
