Ros-dev April 2012

ros-dev@reactos.org

20 participants
14 discussions

by Pierre Schweitzer

Hi, after having finished its 11405th build, the last official RBuild builder has gone offline, forever. The Linux CMake builder has now turned as being the official builder. Thanks RBuild, you served us well :-). Also, the other RBuild builder, the release builder has also gone offline forever. Its hardware was not able to properly handle a ReactOS build, and was hardly upgradable. Daily release builds should replace it any time soon. With my best regards, -- Pierre Schweitzer <pierre(a)reactos.org> Systems Administrator ReactOS Foundation

12 years, 8 months

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by none ofyourbussines

My email was hacked so I got a new one reinstalled my computer operating system and got AVG® it will never happen again

13 years

Re: [ros-dev] [ros-diffs] [tkreuzer] 56442: [PSEH] Fix a serious bug in PSEH that could lead to stack corruption and was causing CSRSS to crash, when large amounts of text were output on the console. Background: PSEH used _...

by Alex Ionescu

Runner-up to Arty's patch of the year. Best regards, Alex Ionescu On Sun, Apr 29, 2012 at 3:00 AM, <tkreuzer(a)svn.reactos.org> wrote: > Author: tkreuzer > Date: Sat Apr 28 20:00:09 2012 > New Revision: 56442 > > URL: http://svn.reactos.org/svn/reactos?rev=56442&view=rev > Log: > [PSEH] > Fix a serious bug in PSEH that could lead to stack corruption and was causing CSRSS to crash, when large amounts of text were output on the console. > Background: PSEH used __builtin_alloca to allocate an SEH registration frame on the stack on demand, ie only for the first try level. But there are some nasty things with __builtin_alloca: First it DOES NOT - as one might think - free the allocated memory, once the allocation "goes out of scope", like with local variables, but only on function exit. Therefore it cannot normally be used inside a loop. The trick that PSEH used to "fix" this problem, was to save the stack pointer and reset it back at the end. This is quite problematic, since the rest of the code might assume that the stack pointer is still where it was left off after the allocation. The other thing is that __builtin_alloca() can allocate the memory whenever it likes to. It can allocate everything on function entry or not allocate anything at all, when other stack variables that went out of scope have left enough space to be reused. In csrss it now happened that the allocation was done before the stack pointer was saved, > so the memory could not be freed by restoring the old stack pointer value. That lead to slowly eating up the stack since the code was inside a loop. > The allocation is now replaced with a variable sized array. The variable stays in scope until the _SEH2_END and will be automaticall cleaned up by the compiler. This also makes saving and restoring the stack pointer obsolete. > Reliability++ > > Modified: > trunk/reactos/include/reactos/libs/pseh/pseh2.h > > Modified: trunk/reactos/include/reactos/libs/pseh/pseh2.h > URL: http://svn.reactos.org/svn/reactos/trunk/reactos/include/reactos/libs/pseh/… > ============================================================================== > --- trunk/reactos/include/reactos/libs/pseh/pseh2.h [iso-8859-1] (original) > +++ trunk/reactos/include/reactos/libs/pseh/pseh2.h [iso-8859-1] Sat Apr 28 20:00:09 2012 > @@ -192,7 +192,6 @@ > if(_SEHTopTryLevel) \ > { \ > _SEH2LeaveFrame(); \ > - __asm__ __volatile__("mov %0, %%esp" : : "g" (_SEHStackPointer)); \ > } > > #define __SEH_END_SCOPE_CHAIN \ > @@ -219,16 +218,14 @@ > static const int _SEH2ScopeKind = 0; \ > volatile _SEH2TryLevel_t _SEHTryLevel; \ > volatile _SEH2HandleTryLevel_t _SEHHandleTryLevel; \ > - void * _SEHStackPointer; \ > + _SEH2Frame_t _SEH2Frame[_SEHTopTryLevel ? 1 : 0]; \ > volatile _SEH2TryLevel_t * _SEH2TryLevelP; \ > _SEH2Frame_t * const _SEH2FrameP = _SEHTopTryLevel ? \ > - ({ __asm__ __volatile__("mov %%esp, %0" : "=g" (_SEHStackPointer)); __builtin_alloca(sizeof(_SEH2Frame_t)); }) : \ > - _SEHCurFrameP; \ > + _SEH2Frame : _SEHCurFrameP; \ > \ > (void)_SEH2ScopeKind; \ > (void)_SEHTryLevel; \ > (void)_SEHHandleTryLevel; \ > - (void)_SEHStackPointer; \ > (void)_SEH2FrameP; \ > (void)_SEH2TryLevelP; \ > \ > >

13 years

Re: [ros-dev] [ros-diffs] [arty] 56441: [NTOSKRNL] Remove PAGEOPs and use the argument to pass relevant information where needed, including generally a section page table entry or a PFN_NUMBER. In its place, the code looks ...

by Alex Ionescu

Patch of the Year. Best regards, Alex Ionescu On Sat, Apr 28, 2012 at 10:56 AM, <arty(a)svn.reactos.org> wrote: > Author: arty > Date: Sat Apr 28 02:56:31 2012 > New Revision: 56441 > > URL: http://svn.reactos.org/svn/reactos?rev=56441&view=rev > Log: > [NTOSKRNL] > Remove PAGEOPs and use the argument to pass relevant information where > needed, > including generally a section page table entry or a PFN_NUMBER. > > In its place, the code looks for an MM_WAIT_ENTRY in the appropriate place > and > waits, returning STATUS_MM_RESTART_OPERATION. Rather than copying the > pagein > and CoW operations in the PAGEOP contention case, we just punt back and > restart > the operation, resulting in simpler code. > > Modified: > trunk/reactos/ntoskrnl/CMakeLists.txt > trunk/reactos/ntoskrnl/cache/section/sptab.c > trunk/reactos/ntoskrnl/include/internal/mm.h > trunk/reactos/ntoskrnl/mm/mminit.c > trunk/reactos/ntoskrnl/mm/rmap.c > trunk/reactos/ntoskrnl/mm/section.c > > Modified: trunk/reactos/ntoskrnl/CMakeLists.txt > URL: > http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/CMakeLists.txt?re… > > ============================================================================== > --- trunk/reactos/ntoskrnl/CMakeLists.txt [iso-8859-1] (original) > +++ trunk/reactos/ntoskrnl/CMakeLists.txt [iso-8859-1] Sat Apr 28 02:56:31 > 2012 > @@ -229,7 +229,6 @@ > mm/mmfault.c > mm/mminit.c > mm/pagefile.c > - mm/pageop.c > mm/region.c > mm/rmap.c > mm/section.c > > Modified: trunk/reactos/ntoskrnl/cache/section/sptab.c > URL: > http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/cache/section/spt… > > ============================================================================== > --- trunk/reactos/ntoskrnl/cache/section/sptab.c [iso-8859-1] (original) > +++ trunk/reactos/ntoskrnl/cache/section/sptab.c [iso-8859-1] Sat Apr 28 > 02:56:31 2012 > @@ -215,8 +215,9 @@ > ASSERT(!Entry || IS_SWAP_FROM_SSE(Entry)); > MmDeleteSectionAssociation(PFN_FROM_SSE(OldEntry)); > } else if (IS_SWAP_FROM_SSE(Entry)) { > - ASSERT(!IS_SWAP_FROM_SSE(OldEntry)); > - if (OldEntry) > + ASSERT(!IS_SWAP_FROM_SSE(OldEntry) || > + SWAPENTRY_FROM_SSE(OldEntry) == MM_WAIT_ENTRY); > + if (OldEntry && SWAPENTRY_FROM_SSE(OldEntry) != MM_WAIT_ENTRY) > MmDeleteSectionAssociation(PFN_FROM_SSE(OldEntry)); > } else if (IS_SWAP_FROM_SSE(OldEntry)) { > ASSERT(!IS_SWAP_FROM_SSE(Entry)); > > Modified: trunk/reactos/ntoskrnl/include/internal/mm.h > URL: > http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/include/internal/… > > ============================================================================== > --- trunk/reactos/ntoskrnl/include/internal/mm.h [iso-8859-1] (original) > +++ trunk/reactos/ntoskrnl/include/internal/mm.h [iso-8859-1] Sat Apr 28 > 02:56:31 2012 > @@ -49,7 +49,6 @@ > struct _KTRAP_FRAME; > struct _EPROCESS; > struct _MM_RMAP_ENTRY; > -struct _MM_PAGEOP; > typedef ULONG_PTR SWAPENTRY; > > // > @@ -83,12 +82,6 @@ > #define MM_CORE_DUMP_TYPE_NONE (0x0) > #define MM_CORE_DUMP_TYPE_MINIMAL (0x1) > #define MM_CORE_DUMP_TYPE_FULL (0x2) > - > -#define MM_PAGEOP_PAGEIN (1) > -#define MM_PAGEOP_PAGEOUT (2) > -#define MM_PAGEOP_PAGESYNCH (3) > -#define MM_PAGEOP_ACCESSFAULT (4) > -#define MM_PAGEOP_CHANGEPROTECT (5) > > /* Number of list heads to use */ > #define MI_FREE_POOL_LISTS 4 > @@ -415,37 +408,6 @@ > extern MMPFNLIST MmModifiedPageListHead; > extern MMPFNLIST MmModifiedNoWritePageListHead; > > -typedef struct _MM_PAGEOP > -{ > - /* Type of operation. */ > - ULONG OpType; > - /* Number of threads interested in this operation. */ > - ULONG ReferenceCount; > - /* Event that will be set when the operation is completed. */ > - KEVENT CompletionEvent; > - /* Status of the operation once it is completed. */ > - NTSTATUS Status; > - /* TRUE if the operation was abandoned. */ > - BOOLEAN Abandoned; > - /* The memory area to be affected by the operation. */ > - PMEMORY_AREA MArea; > - ULONG Hash; > - struct _MM_PAGEOP* Next; > - struct _ETHREAD* Thread; > - /* > - * These fields are used to identify the operation if it is against a > - * virtual memory area. > - */ > - HANDLE Pid; > - PVOID Address; > - /* > - * These fields are used to identify the operation if it is against a > - * section mapping. > - */ > - PMM_SECTION_SEGMENT Segment; > - ULONGLONG Offset; > -} MM_PAGEOP, *PMM_PAGEOP; > - > typedef struct _MM_MEMORY_CONSUMER > { > ULONG PagesUsed; > @@ -937,7 +899,7 @@ > PMMSUPPORT AddressSpace, > PMEMORY_AREA MemoryArea, > PVOID Address, > - struct _MM_PAGEOP* PageOp > + PFN_NUMBER Page > ); > > NTSTATUS > @@ -973,7 +935,7 @@ > PMMSUPPORT AddressSpace, > PMEMORY_AREA MArea, > PVOID Address, > - PMM_PAGEOP PageOp > + PFN_NUMBER Page > ); > > /* kmap.c > ********************************************************************/ > @@ -1006,38 +968,6 @@ > PVOID > FASTCALL > MmSafeReadPtr(PVOID Source); > - > -/* pageop.c > ******************************************************************/ > - > -VOID > -NTAPI > -MmReleasePageOp(PMM_PAGEOP PageOp); > - > -PMM_PAGEOP > -NTAPI > -MmGetPageOp( > - PMEMORY_AREA MArea, > - HANDLE Pid, > - PVOID Address, > - PMM_SECTION_SEGMENT Segment, > - ULONGLONG Offset, > - ULONG OpType, > - BOOLEAN First > -); > - > -PMM_PAGEOP > -NTAPI > -MmCheckForPageOp( > - PMEMORY_AREA MArea, > - HANDLE Pid, > - PVOID Address, > - PMM_SECTION_SEGMENT Segment, > - ULONGLONG Offset > -); > - > -VOID > -NTAPI > -MmInitializePageOp(VOID); > > /* process.c > *****************************************************************/ > > @@ -1657,7 +1587,7 @@ > PMMSUPPORT AddressSpace, > PMEMORY_AREA MemoryArea, > PVOID Address, > - struct _MM_PAGEOP *PageOp > + ULONG_PTR Entry > ); > > NTSTATUS > > Modified: trunk/reactos/ntoskrnl/mm/mminit.c > URL: > http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/mminit.c?rev=5… > > ============================================================================== > --- trunk/reactos/ntoskrnl/mm/mminit.c [iso-8859-1] (original) > +++ trunk/reactos/ntoskrnl/mm/mminit.c [iso-8859-1] Sat Apr 28 02:56:31 > 2012 > @@ -419,7 +419,6 @@ > MiInitializeUserPfnBitmap(); > MmInitializeMemoryConsumer(MC_USER, MmTrimUserMemory); > MmInitializeRmapList(); > - MmInitializePageOp(); > MmInitSectionImplementation(); > MmInitPagingFile(); > > > Modified: trunk/reactos/ntoskrnl/mm/rmap.c > URL: > http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/rmap.c?rev=564… > > ============================================================================== > --- trunk/reactos/ntoskrnl/mm/rmap.c [iso-8859-1] (original) > +++ trunk/reactos/ntoskrnl/mm/rmap.c [iso-8859-1] Sat Apr 28 02:56:31 2012 > @@ -52,7 +52,6 @@ > ULONG Type; > PVOID Address; > PEPROCESS Process; > - PMM_PAGEOP PageOp; > ULONGLONG Offset; > NTSTATUS Status = STATUS_SUCCESS; > > @@ -126,17 +125,20 @@ > Type = MemoryArea->Type; > if (Type == MEMORY_AREA_SECTION_VIEW) > { > + ULONG Entry; > Offset = MemoryArea->Data.SectionData.ViewOffset.QuadPart + > ((ULONG_PTR)Address - > (ULONG_PTR)MemoryArea->StartingAddress); > + > + MmLockSectionSegment(MemoryArea->Data.SectionData.Segment); > > /* > * Get or create a pageop > */ > - PageOp = MmGetPageOp(MemoryArea, NULL, 0, > - MemoryArea->Data.SectionData.Segment, > - Offset, MM_PAGEOP_PAGEOUT, TRUE); > - if (PageOp == NULL) > - { > + Entry = MmGetPageEntrySectionSegment > + (MemoryArea->Data.SectionData.Segment, (PLARGE_INTEGER)&Offset); > + if (Entry && IS_SWAP_FROM_SSE(Entry) && SWAPENTRY_FROM_SSE(Entry) > == MM_WAIT_ENTRY) > + { > + MmUnlockSectionSegment(MemoryArea->Data.SectionData.Segment); > MmUnlockAddressSpace(AddressSpace); > if (Address < MmSystemRangeStart) > { > @@ -145,17 +147,19 @@ > } > return(STATUS_UNSUCCESSFUL); > } > + > + MmSetPageEntrySectionSegment(MemoryArea->Data.SectionData.Segment, > (PLARGE_INTEGER)&Offset, MAKE_SWAP_SSE(MM_WAIT_ENTRY)); > > /* > * Release locks now we have a page op. > */ > + MmUnlockSectionSegment(MemoryArea->Data.SectionData.Segment); > MmUnlockAddressSpace(AddressSpace); > > /* > * Do the actual page out work. > */ > - Status = MmPageOutSectionView(AddressSpace, MemoryArea, > - Address, PageOp); > + Status = MmPageOutSectionView(AddressSpace, MemoryArea, Address, > Entry); > } > else if (Type == MEMORY_AREA_CACHE) > { > > Modified: trunk/reactos/ntoskrnl/mm/section.c > URL: > http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/section.c?rev=… > > ============================================================================== > --- trunk/reactos/ntoskrnl/mm/section.c [iso-8859-1] (original) > +++ trunk/reactos/ntoskrnl/mm/section.c [iso-8859-1] Sat Apr 28 02:56:31 > 2012 > @@ -127,6 +127,7 @@ > BOOLEAN WasDirty; > BOOLEAN Private; > PEPROCESS CallingProcess; > + ULONG_PTR SectionEntry; > } > MM_SECTION_PAGEOUT_CONTEXT; > > @@ -704,43 +705,6 @@ > return nStatus; > } > > -/* Note: Mmsp prefix denotes "Memory Manager Section Private". */ > - > -/* > - * FUNCTION: Waits in kernel mode up to ten seconds for an MM_PAGEOP > event. > - * ARGUMENTS: PMM_PAGEOP which event we should wait for. > - * RETURNS: Status of the wait. > - */ > -static NTSTATUS > -MmspWaitForPageOpCompletionEvent(PMM_PAGEOP PageOp) > -{ > - LARGE_INTEGER Timeout; > -#ifdef __GNUC__ /* TODO: Use other macro to check for suffix to use? */ > - > - Timeout.QuadPart = -100000000LL; // 10 sec > -#else > - > - Timeout.QuadPart = -100000000; // 10 sec > -#endif > - > - return KeWaitForSingleObject(&PageOp->CompletionEvent, 0, KernelMode, > FALSE, &Timeout); > -} > - > - > -/* > - * FUNCTION: Sets the page op completion event and releases the page op. > - * ARGUMENTS: PMM_PAGEOP. > - * RETURNS: In shorter time than it takes you to even read this > - * description, so don't even think about geting a mug of > coffee. > - */ > -static void > -MmspCompleteAndReleasePageOp(PMM_PAGEOP PageOp) > -{ > - KeSetEvent(&PageOp->CompletionEvent, IO_NO_INCREMENT, FALSE); > - MmReleasePageOp(PageOp); > -} > - > - > /* > * FUNCTION: Waits in kernel mode indefinitely for a file object lock. > * ARGUMENTS: PFILE_OBJECT to wait for. > @@ -831,12 +795,12 @@ > PMM_SECTION_SEGMENT Segment, > PLARGE_INTEGER Offset, > BOOLEAN Dirty, > - BOOLEAN PageOut) > -{ > - ULONG_PTR Entry; > + BOOLEAN PageOut, > + ULONG_PTR *InEntry) > +{ > + ULONG_PTR Entry = InEntry ? *InEntry : > MmGetPageEntrySectionSegment(Segment, Offset); > BOOLEAN IsDirectMapped = FALSE; > > - Entry = MmGetPageEntrySectionSegment(Segment, Offset); > if (Entry == 0) > { > DPRINT1("Entry == 0 for MmUnsharePageEntrySectionSegment\n"); > @@ -844,7 +808,7 @@ > } > if (SHARE_COUNT_FROM_SSE(Entry) == 0) > { > - DPRINT1("Zero share count for unshare\n"); > + DPRINT1("Zero share count for unshare (Seg %p Offset %x Page > %x)\n", Segment, Offset->LowPart, PFN_FROM_SSE(Entry)); > KeBugCheck(MEMORY_MANAGEMENT); > } > if (IS_SWAP_FROM_SSE(Entry)) > @@ -913,10 +877,14 @@ > * page without a rmap entry. > */ > MmSetPageEntrySectionSegment(Segment, Offset, Entry); > + if (InEntry) *InEntry = Entry; > + MiSetPageEvent(NULL, NULL); > } > else > { > MmSetPageEntrySectionSegment(Segment, Offset, 0); > + if (InEntry) *InEntry = 0; > + MiSetPageEvent(NULL, NULL); > if (!IsDirectMapped) > { > MmReleasePageMemoryConsumer(MC_USER, Page); > @@ -946,7 +914,9 @@ > } > } > MmSetPageEntrySectionSegment(Segment, Offset, > MAKE_SWAP_SSE(SavedSwapEntry)); > + if (InEntry) *InEntry = MAKE_SWAP_SSE(SavedSwapEntry); > MmSetSavedSwapEntryPage(Page, 0); > + MiSetPageEvent(NULL, NULL); > } > MmReleasePageMemoryConsumer(MC_USER, Page); > } > @@ -959,7 +929,10 @@ > } > else > { > - MmSetPageEntrySectionSegment(Segment, Offset, Entry); > + if (InEntry) > + *InEntry = Entry; > + else > + MmSetPageEntrySectionSegment(Segment, Offset, Entry); > } > return(SHARE_COUNT_FROM_SSE(Entry) > 0); > } > @@ -1232,7 +1205,6 @@ > ULONG_PTR Entry; > ULONG_PTR Entry1; > ULONG Attributes; > - PMM_PAGEOP PageOp; > PMM_REGION Region; > BOOLEAN HasSwapEntry; > PVOID PAddress; > @@ -1270,7 +1242,7 @@ > * Lock the segment > */ > MmLockSectionSegment(Segment); > - > + Entry = MmGetPageEntrySectionSegment(Segment, &Offset); > /* > * Check if this page needs to be mapped COW > */ > @@ -1286,111 +1258,41 @@ > } > > /* > - * Get or create a page operation descriptor > - */ > - PageOp = MmGetPageOp(MemoryArea, NULL, 0, Segment, Offset.LowPart, > MM_PAGEOP_PAGEIN, FALSE); > - if (PageOp == NULL) > - { > - DPRINT1("MmGetPageOp failed\n"); > - KeBugCheck(MEMORY_MANAGEMENT); > - } > - > - /* > * Check if someone else is already handling this fault, if so wait > * for them > */ > - if (PageOp->Thread != PsGetCurrentThread()) > + if (Entry && IS_SWAP_FROM_SSE(Entry) && SWAPENTRY_FROM_SSE(Entry) == > MM_WAIT_ENTRY) > { > MmUnlockSectionSegment(Segment); > MmUnlockAddressSpace(AddressSpace); > - Status = MmspWaitForPageOpCompletionEvent(PageOp); > + MiWaitForPageEvent(NULL, NULL); > + MmLockAddressSpace(AddressSpace); > + DPRINT("Address 0x%.8X\n", Address); > + return(STATUS_MM_RESTART_OPERATION); > + } > + > + HasSwapEntry = MmIsPageSwapEntry(Process, Address); > + > + if (HasSwapEntry) > + { > + SWAPENTRY SwapEntry; > /* > - * Check for various strange conditions > + * Is it a wait entry? > */ > - if (Status != STATUS_SUCCESS) > - { > - DPRINT1("Failed to wait for page op, status = %x\n", Status); > - KeBugCheck(MEMORY_MANAGEMENT); > - } > - if (PageOp->Status == STATUS_PENDING) > - { > - DPRINT1("Woke for page op before completion\n"); > - KeBugCheck(MEMORY_MANAGEMENT); > - } > - MmLockAddressSpace(AddressSpace); > - /* > - * If this wasn't a pagein then restart the operation > - */ > - if (PageOp->OpType != MM_PAGEOP_PAGEIN) > - { > - MmspCompleteAndReleasePageOp(PageOp); > - DPRINT("Address 0x%.8X\n", Address); > - return(STATUS_MM_RESTART_OPERATION); > - } > - > - /* > - * If the thread handling this fault has failed then we don't retry > - */ > - if (!NT_SUCCESS(PageOp->Status)) > - { > - Status = PageOp->Status; > - MmspCompleteAndReleasePageOp(PageOp); > - DPRINT("Address 0x%.8X\n", Address); > - return(Status); > - } > - MmLockSectionSegment(Segment); > - /* > - * If the completed fault was for another address space then set the > - * page in this one. > - */ > - if (!MmIsPagePresent(Process, Address)) > - { > - Entry = MmGetPageEntrySectionSegment(Segment, &Offset); > - HasSwapEntry = MmIsPageSwapEntry(Process, (PVOID)PAddress); > - > - if (PAGE_FROM_SSE(Entry) == 0 || HasSwapEntry) > - { > - /* > - * The page was a private page in another or in our address > space > - */ > - MmUnlockSectionSegment(Segment); > - MmspCompleteAndReleasePageOp(PageOp); > - return(STATUS_MM_RESTART_OPERATION); > - } > - > - Page = PFN_FROM_SSE(Entry); > - > - MmSharePageEntrySectionSegment(Segment, &Offset); > - > - /* FIXME: Should we call MmCreateVirtualMappingUnsafe if > - * (Section->AllocationAttributes & SEC_PHYSICALMEMORY) is true? > - */ > - Status = MmCreateVirtualMapping(Process, > - PAddress, > - Attributes, > - &Page, > - 1); > - if (!NT_SUCCESS(Status)) > - { > - DPRINT1("Unable to create virtual mapping\n"); > - KeBugCheck(MEMORY_MANAGEMENT); > - } > - MmInsertRmap(Page, Process, Address); > - } > - MmUnlockSectionSegment(Segment); > - PageOp->Status = STATUS_SUCCESS; > - MmspCompleteAndReleasePageOp(PageOp); > - DPRINT("Address 0x%.8X\n", Address); > - return(STATUS_SUCCESS); > - } > - > - HasSwapEntry = MmIsPageSwapEntry(Process, Address); > - if (HasSwapEntry) > - { > + MmGetPageFileMapping(Process, Address, &SwapEntry); > + > + if (SwapEntry == MM_WAIT_ENTRY) > + { > + MmUnlockSectionSegment(Segment); > + MmUnlockAddressSpace(AddressSpace); > + MiWaitForPageEvent(NULL, NULL); > + MmLockAddressSpace(AddressSpace); > + return STATUS_MM_RESTART_OPERATION; > + } > + > /* > * Must be private page we have swapped out. > */ > - SWAPENTRY SwapEntry; > > /* > * Sanity check > @@ -1445,8 +1347,7 @@ > /* > * Finish the operation > */ > - PageOp->Status = STATUS_SUCCESS; > - MmspCompleteAndReleasePageOp(PageOp); > + MiSetPageEvent(Process, Address); > DPRINT("Address 0x%.8X\n", Address); > return(STATUS_SUCCESS); > } > @@ -1476,8 +1377,7 @@ > /* > * Cleanup and release locks > */ > - PageOp->Status = STATUS_SUCCESS; > - MmspCompleteAndReleasePageOp(PageOp); > + MiSetPageEvent(Process, Address); > DPRINT("Address 0x%.8X\n", Address); > return(STATUS_SUCCESS); > } > @@ -1518,8 +1418,7 @@ > /* > * Cleanup and release locks > */ > - PageOp->Status = STATUS_SUCCESS; > - MmspCompleteAndReleasePageOp(PageOp); > + MiSetPageEvent(Process, Address); > DPRINT("Address 0x%.8X\n", Address); > return(STATUS_SUCCESS); > } > @@ -1539,6 +1438,7 @@ > /* > * Release all our locks and read in the page from disk > */ > + MmSetPageEntrySectionSegment(Segment, &Offset, > MAKE_SWAP_SSE(MM_WAIT_ENTRY)); > MmUnlockSectionSegment(Segment); > MmUnlockAddressSpace(AddressSpace); > > @@ -1573,11 +1473,64 @@ > * Cleanup and release locks > */ > MmLockAddressSpace(AddressSpace); > - PageOp->Status = Status; > - MmspCompleteAndReleasePageOp(PageOp); > + MiSetPageEvent(Process, Address); > DPRINT("Address 0x%.8X\n", Address); > return(Status); > } > + > + /* > + * Mark the offset within the section as having valid, in-memory > + * data > + */ > + MmLockAddressSpace(AddressSpace); > + MmLockSectionSegment(Segment); > + Entry = MAKE_SSE(Page << PAGE_SHIFT, 1); > + MmSetPageEntrySectionSegment(Segment, &Offset, Entry); > + MmUnlockSectionSegment(Segment); > + > + Status = MmCreateVirtualMapping(Process, > + PAddress, > + Attributes, > + &Page, > + 1); > + if (!NT_SUCCESS(Status)) > + { > + DPRINT1("Unable to create virtual mapping\n"); > + KeBugCheck(MEMORY_MANAGEMENT); > + } > + MmInsertRmap(Page, Process, Address); > + > + MiSetPageEvent(Process, Address); > + DPRINT("Address 0x%.8X\n", Address); > + return(STATUS_SUCCESS); > + } > + else if (IS_SWAP_FROM_SSE(Entry)) > + { > + SWAPENTRY SwapEntry; > + > + SwapEntry = SWAPENTRY_FROM_SSE(Entry); > + > + /* > + * Release all our locks and read in the page from disk > + */ > + MmUnlockSectionSegment(Segment); > + > + MmUnlockAddressSpace(AddressSpace); > + MI_SET_USAGE(MI_USAGE_SECTION); > + if (Process) MI_SET_PROCESS2(Process->ImageFileName); > + if (!Process) MI_SET_PROCESS2("Kernel Section"); > + Status = MmRequestPageMemoryConsumer(MC_USER, TRUE, &Page); > + if (!NT_SUCCESS(Status)) > + { > + KeBugCheck(MEMORY_MANAGEMENT); > + } > + > + Status = MmReadFromSwapPage(SwapEntry, Page); > + if (!NT_SUCCESS(Status)) > + { > + KeBugCheck(MEMORY_MANAGEMENT); > + } > + > /* > * Relock the address space and segment > */ > @@ -1591,76 +1544,7 @@ > Entry1 = MmGetPageEntrySectionSegment(Segment, &Offset); > if (Entry != Entry1) > { > - DPRINT1("Someone changed ppte entry while we slept\n"); > - KeBugCheck(MEMORY_MANAGEMENT); > - } > - > - /* > - * Mark the offset within the section as having valid, in-memory > - * data > - */ > - Entry = MAKE_SSE(Page << PAGE_SHIFT, 1); > - MmSetPageEntrySectionSegment(Segment, &Offset, Entry); > - MmUnlockSectionSegment(Segment); > - > - Status = MmCreateVirtualMapping(Process, > - PAddress, > - Attributes, > - &Page, > - 1); > - if (!NT_SUCCESS(Status)) > - { > - DPRINT1("Unable to create virtual mapping\n"); > - KeBugCheck(MEMORY_MANAGEMENT); > - } > - MmInsertRmap(Page, Process, Address); > - > - PageOp->Status = STATUS_SUCCESS; > - MmspCompleteAndReleasePageOp(PageOp); > - DPRINT("Address 0x%.8X\n", Address); > - return(STATUS_SUCCESS); > - } > - else if (IS_SWAP_FROM_SSE(Entry)) > - { > - SWAPENTRY SwapEntry; > - > - SwapEntry = SWAPENTRY_FROM_SSE(Entry); > - > - /* > - * Release all our locks and read in the page from disk > - */ > - MmUnlockSectionSegment(Segment); > - > - MmUnlockAddressSpace(AddressSpace); > - MI_SET_USAGE(MI_USAGE_SECTION); > - if (Process) MI_SET_PROCESS2(Process->ImageFileName); > - if (!Process) MI_SET_PROCESS2("Kernel Section"); > - Status = MmRequestPageMemoryConsumer(MC_USER, TRUE, &Page); > - if (!NT_SUCCESS(Status)) > - { > - KeBugCheck(MEMORY_MANAGEMENT); > - } > - > - Status = MmReadFromSwapPage(SwapEntry, Page); > - if (!NT_SUCCESS(Status)) > - { > - KeBugCheck(MEMORY_MANAGEMENT); > - } > - > - /* > - * Relock the address space and segment > - */ > - MmLockAddressSpace(AddressSpace); > - MmLockSectionSegment(Segment); > - > - /* > - * Check the entry. No one should change the status of a page > - * that has a pending page-in. > - */ > - Entry1 = MmGetPageEntrySectionSegment(Segment, &Offset); > - if (Entry != Entry1) > - { > - DPRINT1("Someone changed ppte entry while we slept\n"); > + DPRINT1("Someone changed ppte entry while we slept (%x vs > %x)\n", Entry, Entry1); > KeBugCheck(MEMORY_MANAGEMENT); > } > > @@ -1687,8 +1571,7 @@ > KeBugCheck(MEMORY_MANAGEMENT); > } > MmInsertRmap(Page, Process, Address); > - PageOp->Status = STATUS_SUCCESS; > - MmspCompleteAndReleasePageOp(PageOp); > + MiSetPageEvent(Process, Address); > DPRINT("Address 0x%.8X\n", Address); > return(STATUS_SUCCESS); > } > @@ -1715,8 +1598,7 @@ > KeBugCheck(MEMORY_MANAGEMENT); > } > MmInsertRmap(Page, Process, Address); > - PageOp->Status = STATUS_SUCCESS; > - MmspCompleteAndReleasePageOp(PageOp); > + MiSetPageEvent(Process, Address); > DPRINT("Address 0x%.8X\n", Address); > return(STATUS_SUCCESS); > } > @@ -1735,7 +1617,6 @@ > NTSTATUS Status; > PVOID PAddress; > LARGE_INTEGER Offset; > - PMM_PAGEOP PageOp; > PMM_REGION Region; > ULONG_PTR Entry; > PEPROCESS Process = MmGetAddressSpaceOwner(AddressSpace); > @@ -1799,46 +1680,29 @@ > /* > * Get or create a pageop > */ > - PageOp = MmGetPageOp(MemoryArea, NULL, 0, Segment, Offset.LowPart, > - MM_PAGEOP_ACCESSFAULT, FALSE); > - if (PageOp == NULL) > - { > - DPRINT1("MmGetPageOp failed\n"); > - KeBugCheck(MEMORY_MANAGEMENT); > - } > - > + MmLockSectionSegment(Segment); > + Entry = MmGetPageEntrySectionSegment(Segment, &Offset); > + > /* > * Wait for any other operations to complete > */ > - if (PageOp->Thread != PsGetCurrentThread()) > - { > - MmUnlockAddressSpace(AddressSpace); > - Status = MmspWaitForPageOpCompletionEvent(PageOp); > - /* > - * Check for various strange conditions > - */ > - if (Status == STATUS_TIMEOUT) > - { > - DPRINT1("Failed to wait for page op, status = %x\n", Status); > - KeBugCheck(MEMORY_MANAGEMENT); > - } > - if (PageOp->Status == STATUS_PENDING) > - { > - DPRINT1("Woke for page op before completion\n"); > - KeBugCheck(MEMORY_MANAGEMENT); > - } > - /* > - * Restart the operation > - */ > - MmLockAddressSpace(AddressSpace); > - MmspCompleteAndReleasePageOp(PageOp); > - DPRINT("Address 0x%.8X\n", Address); > - return(STATUS_MM_RESTART_OPERATION); > + if (Entry == SWAPENTRY_FROM_SSE(MM_WAIT_ENTRY)) > + { > + MmUnlockSectionSegment(Segment); > + MmUnlockAddressSpace(AddressSpace); > + MiWaitForPageEvent(NULL, NULL); > + /* > + * Restart the operation > + */ > + MmLockAddressSpace(AddressSpace); > + DPRINT("Address 0x%.8X\n", Address); > + return(STATUS_MM_RESTART_OPERATION); > } > > /* > * Release locks now we have the pageop > */ > + MmUnlockSectionSegment(Segment); > MmUnlockAddressSpace(AddressSpace); > > /* > @@ -1890,11 +1754,10 @@ > MmDeleteRmap(OldPage, Process, PAddress); > MmInsertRmap(NewPage, Process, PAddress); > MmLockSectionSegment(Segment); > - MmUnsharePageEntrySectionSegment(Section, Segment, &Offset, FALSE, > FALSE); > + MmUnsharePageEntrySectionSegment(Section, Segment, &Offset, FALSE, > FALSE, NULL); > MmUnlockSectionSegment(Segment); > > - PageOp->Status = STATUS_SUCCESS; > - MmspCompleteAndReleasePageOp(PageOp); > + MiSetPageEvent(Process, Address); > DPRINT("Address 0x%.8X\n", Address); > return(STATUS_SUCCESS); > } > @@ -1904,7 +1767,7 @@ > { > MM_SECTION_PAGEOUT_CONTEXT* PageOutContext; > BOOLEAN WasDirty; > - PFN_NUMBER Page; > + PFN_NUMBER Page = 0; > > PageOutContext = (MM_SECTION_PAGEOUT_CONTEXT*)Context; > if (Process) > @@ -1928,7 +1791,8 @@ > PageOutContext->Segment, > &PageOutContext->Offset, > PageOutContext->WasDirty, > - TRUE); > + TRUE, > + &PageOutContext->SectionEntry); > MmUnlockSectionSegment(PageOutContext->Segment); > } > if (Process) > @@ -1940,21 +1804,17 @@ > { > MmReleasePageMemoryConsumer(MC_USER, Page); > } > - > - DPRINT("PhysicalAddress %x, Address %x\n", Page << PAGE_SHIFT, > Address); > } > > NTSTATUS > NTAPI > MmPageOutSectionView(PMMSUPPORT AddressSpace, > MEMORY_AREA* MemoryArea, > - PVOID Address, > - PMM_PAGEOP PageOp) > + PVOID Address, ULONG_PTR Entry) > { > PFN_NUMBER Page; > MM_SECTION_PAGEOUT_CONTEXT Context; > SWAPENTRY SwapEntry; > - ULONG_PTR Entry; > ULONGLONG FileOffset; > NTSTATUS Status; > PFILE_OBJECT FileObject; > @@ -1973,6 +1833,7 @@ > */ > Context.Segment = MemoryArea->Data.SectionData.Segment; > Context.Section = MemoryArea->Data.SectionData.Section; > + Context.SectionEntry = Entry; > Context.CallingProcess = Process; > > Context.Offset.QuadPart = (ULONG_PTR)Address - > (ULONG_PTR)MemoryArea->StartingAddress > @@ -1983,6 +1844,8 @@ > > FileObject = Context.Section->FileObject; > DirectMapped = FALSE; > + > + MmLockSectionSegment(Context.Segment); > > #ifndef NEWCC > if (FileObject != NULL && > @@ -2035,16 +1898,14 @@ > { > DPRINT("Cannot page out locked section page: 0x%p (RefCount: %d)\n", > Page, MmGetReferenceCountPage(Page)); > - PageOp->Status = STATUS_UNSUCCESSFUL; > - MmspCompleteAndReleasePageOp(PageOp); > + MmSetPageEntrySectionSegment(Context.Segment, &Context.Offset, > Entry); > + MmUnlockSectionSegment(Context.Segment); > return STATUS_UNSUCCESSFUL; > } > > /* > * Prepare the context structure for the rmap delete call. > */ > - MmLockSectionSegment(Context.Segment); > - Entry = MmGetPageEntrySectionSegment(Context.Segment, &Context.Offset); > MmUnlockSectionSegment(Context.Segment); > Context.WasDirty = FALSE; > if (Context.Segment->Image.Characteristics & > IMAGE_SCN_CNT_UNINITIALIZED_DATA || > @@ -2077,9 +1938,12 @@ > } > > MmDeleteAllRmaps(Page, (PVOID)&Context, MmPageOutDeleteMapping); > - MmLockSectionSegment(Context.Segment); > - Entry = MmGetPageEntrySectionSegment(Context.Segment, &Context.Offset); > - MmUnlockSectionSegment(Context.Segment); > + > + /* Since we passed in a surrogate, we'll get back the page entry > + * state in our context. This is intended to make intermediate > + * decrements of share count not release the wait entry. > + */ > + Entry = Context.SectionEntry; > > /* > * If this wasn't a private page then we should have reduced the entry > to > @@ -2117,8 +1981,7 @@ > MmSetPageEntrySectionSegment(Context.Segment, &Context.Offset, > MAKE_SWAP_SSE(SwapEntry)); > MmUnlockSectionSegment(Context.Segment); > MmReleasePageMemoryConsumer(MC_USER, Page); > - PageOp->Status = STATUS_SUCCESS; > - MmspCompleteAndReleasePageOp(PageOp); > + MiSetPageEvent(NULL, NULL); > return(STATUS_SUCCESS); > } > } > @@ -2140,8 +2003,7 @@ > MmUnlockSectionSegment(Context.Segment); > } > MmReleasePageMemoryConsumer(MC_USER, Page); > - PageOp->Status = STATUS_SUCCESS; > - MmspCompleteAndReleasePageOp(PageOp); > + MiSetPageEvent(NULL, NULL); > return(STATUS_SUCCESS); > } > } > @@ -2165,8 +2027,7 @@ > KeBugCheckEx(MEMORY_MANAGEMENT, Status, (ULONG_PTR)Bcb, > (ULONG_PTR)FileOffset, (ULONG_PTR)Address); > } > #endif > - PageOp->Status = STATUS_SUCCESS; > - MmspCompleteAndReleasePageOp(PageOp); > + MiSetPageEvent(NULL, NULL); > return(STATUS_SUCCESS); > } > else if (!Context.WasDirty && !DirectMapped && !Context.Private) > @@ -2178,13 +2039,12 @@ > KeBugCheckEx(MEMORY_MANAGEMENT, SwapEntry, Page, > (ULONG_PTR)Process, (ULONG_PTR)Address); > } > MmReleasePageMemoryConsumer(MC_USER, Page); > - PageOp->Status = STATUS_SUCCESS; > - MmspCompleteAndReleasePageOp(PageOp); > + MiSetPageEvent(NULL, NULL); > return(STATUS_SUCCESS); > } > else if (!Context.WasDirty && Context.Private && SwapEntry != 0) > { > - DPRINT1("Not dirty and private and not swapped (%p:%p)\n", Process, > Address); > + DPRINT("Not dirty and private and not swapped (%p:%p)\n", Process, > Address); > MmSetSavedSwapEntryPage(Page, 0); > MmLockAddressSpace(AddressSpace); > Status = MmCreatePageFileMapping(Process, > @@ -2197,8 +2057,7 @@ > KeBugCheckEx(MEMORY_MANAGEMENT, Status, (ULONG_PTR)Process, > (ULONG_PTR)Address, SwapEntry); > } > MmReleasePageMemoryConsumer(MC_USER, Page); > - PageOp->Status = STATUS_SUCCESS; > - MmspCompleteAndReleasePageOp(PageOp); > + MiSetPageEvent(NULL, NULL); > return(STATUS_SUCCESS); > } > > @@ -2253,8 +2112,7 @@ > MmUnlockSectionSegment(Context.Segment); > } > MmUnlockAddressSpace(AddressSpace); > - PageOp->Status = STATUS_UNSUCCESSFUL; > - MmspCompleteAndReleasePageOp(PageOp); > + MiSetPageEvent(NULL, NULL); > return(STATUS_PAGEFILE_QUOTA); > } > } > @@ -2299,8 +2157,7 @@ > MmSetPageEntrySectionSegment(Context.Segment, &Context.Offset, > Entry); > } > MmUnlockAddressSpace(AddressSpace); > - PageOp->Status = STATUS_UNSUCCESSFUL; > - MmspCompleteAndReleasePageOp(PageOp); > + MiSetPageEvent(NULL, NULL); > return(STATUS_UNSUCCESSFUL); > } > > @@ -2308,12 +2165,13 @@ > * Otherwise we have succeeded. > */ > DPRINT("MM: Wrote section page 0x%.8X to swap!\n", Page << PAGE_SHIFT); > - MmLockSectionSegment(Context.Segment); > MmSetSavedSwapEntryPage(Page, 0); > if (Context.Segment->Flags & MM_PAGEFILE_SEGMENT || > Context.Segment->Image.Characteristics & IMAGE_SCN_MEM_SHARED) > { > + MmLockSectionSegment(Context.Segment); > MmSetPageEntrySectionSegment(Context.Segment, &Context.Offset, > MAKE_SWAP_SSE(SwapEntry)); > + MmUnlockSectionSegment(Context.Segment); > } > else > { > @@ -2323,9 +2181,11 @@ > if (Context.Private) > { > MmLockAddressSpace(AddressSpace); > + MmLockSectionSegment(Context.Segment); > Status = MmCreatePageFileMapping(Process, > Address, > SwapEntry); > + MmUnlockSectionSegment(Context.Segment); > MmUnlockAddressSpace(AddressSpace); > if (!NT_SUCCESS(Status)) > { > @@ -2335,13 +2195,15 @@ > } > else > { > + MmLockAddressSpace(AddressSpace); > + MmLockSectionSegment(Context.Segment); > Entry = MAKE_SWAP_SSE(SwapEntry); > MmSetPageEntrySectionSegment(Context.Segment, &Context.Offset, > Entry); > - } > - > - MmUnlockSectionSegment(Context.Segment); > - PageOp->Status = STATUS_SUCCESS; > - MmspCompleteAndReleasePageOp(PageOp); > + MmUnlockSectionSegment(Context.Segment); > + MmUnlockAddressSpace(AddressSpace); > + } > + > + MiSetPageEvent(NULL, NULL); > return(STATUS_SUCCESS); > } > > @@ -2350,7 +2212,7 @@ > MmWritePageSectionView(PMMSUPPORT AddressSpace, > PMEMORY_AREA MemoryArea, > PVOID Address, > - PMM_PAGEOP PageOp) > + ULONG PageEntry) > { > LARGE_INTEGER Offset; > PROS_SECTION_OBJECT Section; > @@ -2447,12 +2309,16 @@ > */ > if (DirectMapped && !Private) > { > + LARGE_INTEGER SOffset; > ASSERT(SwapEntry == 0); > + SOffset.QuadPart = Offset.QuadPart + Segment->Image.FileOffset; > #ifndef NEWCC > - CcRosMarkDirtyCacheSegment(Bcb, (ULONG)(Offset.QuadPart + > Segment->Image.FileOffset)); > + CcRosMarkDirtyCacheSegment(Bcb, Offset.LowPart); > #endif > - PageOp->Status = STATUS_SUCCESS; > - MmspCompleteAndReleasePageOp(PageOp); > + MmLockSectionSegment(Segment); > + MmSetPageEntrySectionSegment(Segment, &Offset, PageEntry); > + MmUnlockSectionSegment(Segment); > + MiSetPageEvent(NULL, NULL); > return(STATUS_SUCCESS); > } > > @@ -2465,8 +2331,7 @@ > if (SwapEntry == 0) > { > MmSetDirtyAllRmaps(Page); > - PageOp->Status = STATUS_UNSUCCESSFUL; > - MmspCompleteAndReleasePageOp(PageOp); > + MiSetPageEvent(NULL, NULL); > return(STATUS_PAGEFILE_QUOTA); > } > MmSetSavedSwapEntryPage(Page, SwapEntry); > @@ -2481,8 +2346,7 @@ > DPRINT1("MM: Failed to write to swap page (Status was 0x%.8X)\n", > Status); > MmSetDirtyAllRmaps(Page); > - PageOp->Status = STATUS_UNSUCCESSFUL; > - MmspCompleteAndReleasePageOp(PageOp); > + MiSetPageEvent(NULL, NULL); > return(STATUS_UNSUCCESSFUL); > } > > @@ -2490,8 +2354,7 @@ > * Otherwise we have succeeded. > */ > DPRINT("MM: Wrote section page 0x%.8X to swap!\n", Page << PAGE_SHIFT); > - PageOp->Status = STATUS_SUCCESS; > - MmspCompleteAndReleasePageOp(PageOp); > + MiSetPageEvent(NULL, NULL); > return(STATUS_SUCCESS); > } > > @@ -4039,8 +3902,6 @@ > PBCB Bcb; > LARGE_INTEGER Offset; > SWAPENTRY SavedSwapEntry; > - PMM_PAGEOP PageOp; > - NTSTATUS Status; > PROS_SECTION_OBJECT Section; > PMM_SECTION_SEGMENT Segment; > PMMSUPPORT AddressSpace; > @@ -4057,27 +3918,18 @@ > Section = MemoryArea->Data.SectionData.Section; > Segment = MemoryArea->Data.SectionData.Segment; > > - PageOp = MmCheckForPageOp(MemoryArea, NULL, NULL, Segment, > Offset.LowPart); > - > - while (PageOp) > + Entry = MmGetPageEntrySectionSegment(Segment, &Offset); > + while (Entry && IS_SWAP_FROM_SSE(Entry) && SWAPENTRY_FROM_SSE(Entry) > == MM_WAIT_ENTRY) > { > MmUnlockSectionSegment(Segment); > MmUnlockAddressSpace(AddressSpace); > > - Status = MmspWaitForPageOpCompletionEvent(PageOp); > - if (Status != STATUS_SUCCESS) > - { > - DPRINT1("Failed to wait for page op, status = %x\n", Status); > - KeBugCheck(MEMORY_MANAGEMENT); > - } > + MiWaitForPageEvent(NULL, NULL); > > MmLockAddressSpace(AddressSpace); > MmLockSectionSegment(Segment); > - MmspCompleteAndReleasePageOp(PageOp); > - PageOp = MmCheckForPageOp(MemoryArea, NULL, NULL, Segment, > Offset.LowPart); > - } > - > - Entry = MmGetPageEntrySectionSegment(Segment, &Offset); > + Entry = MmGetPageEntrySectionSegment(Segment, &Offset); > + } > > /* > * For a dirty, datafile, non-private page mark it as dirty in the > @@ -4136,7 +3988,7 @@ > else > { > MmDeleteRmap(Page, Process, Address); > - MmUnsharePageEntrySectionSegment(Section, Segment, &Offset, > Dirty, FALSE); > + MmUnsharePageEntrySectionSegment(Section, Segment, &Offset, > Dirty, FALSE, NULL); > } > } > } > @@ -4208,9 +4060,7 @@ > PMEMORY_AREA MemoryArea; > PMMSUPPORT AddressSpace; > PROS_SECTION_OBJECT Section; > - PMM_PAGEOP PageOp; > - ULONG_PTR Offset; > - PVOID ImageBaseAddress = 0; > + PVOID ImageBaseAddress = 0; > > DPRINT("Opening memory area Process %x BaseAddress %x\n", > Process, BaseAddress); > @@ -4232,40 +4082,6 @@ > } > > MemoryArea->DeleteInProgress = TRUE; > - > - while (MemoryArea->PageOpCount) > - { > - Offset = PAGE_ROUND_UP((ULONG_PTR)MemoryArea->EndingAddress - > (ULONG_PTR)MemoryArea->StartingAddress); > - > - while (Offset) > - { > - Offset -= PAGE_SIZE; > - PageOp = MmCheckForPageOp(MemoryArea, NULL, NULL, > - MemoryArea->Data.SectionData.Segment, > - Offset + > MemoryArea->Data.SectionData.ViewOffset.QuadPart); > - if (PageOp) > - { > - MmUnlockAddressSpace(AddressSpace); > - Status = MmspWaitForPageOpCompletionEvent(PageOp); > - if (Status != STATUS_SUCCESS) > - { > - DPRINT1("Failed to wait for page op, status = %x\n", > Status); > - KeBugCheck(MEMORY_MANAGEMENT); > - } > - MmLockAddressSpace(AddressSpace); > - MmspCompleteAndReleasePageOp(PageOp); > - MemoryArea = MmLocateMemoryAreaByAddress(AddressSpace, > - BaseAddress); > - if (MemoryArea == NULL || > - MemoryArea->Type != MEMORY_AREA_SECTION_VIEW) > - { > - MmUnlockAddressSpace(AddressSpace); > - return STATUS_NOT_MAPPED_VIEW; > - } > - break; > - } > - } > - } > > Section = MemoryArea->Data.SectionData.Section; > > > >

13 years

mail

by none ofyourbussines

To project admin: My email you said post was annoying The I looked at email records I was not online then it w as job of a hacker but it is fixed now

13 years

Monthly meeting - April 2012

by Aleksey Bragin

Hello, Let me invite you to the monthly status meeting taking place last Thursday of this month, 26th of April, 19:00 UTC. The meeting will be at irc://fezile.reactos.org (Port 6667, no SSL) in the channel #meeting. Note that the IRC service will only be started shortly before the meeting. Your participation passwords will be emailed to you shortly before the meeting starts. If someone still is not getting passwords sent before a meeting - please email Colin or Pierre before the meeting started to get one. In order to save time, let's choose who is going to be the minute taker on the upcoming meeting. Volunteers welcome. An agenda for the meeting will be posted when the meeting starts. Please email me your suggestions before the meeting so that the resulting agenda could be compiled beforehand. With the best regards, Aleksey Bragin.

13 years

April 2012 Meeting Minutes

by Amine Khaldi

April 2012 Meeting Minutes 2012-04-26 19:00 UTC Fezile, #meeting Proceedings =========== * Meeting started at 19:20 UTC by Amine Khaldi. * Point 1: The state of Trunk ----------------------------- * Amine Khaldi mentioned that we still have several regressions to get fixed. Olaf Siejka stressed the fact that developers should actually look into these regressions and fix them, and wondered about the optimal selection process to ensure this. * Timo Kreuzer suggested that we should assign these regressions, to increase the possibility of having them fixed. He explained that the selection should be by the guilty revision first (the revision that triggers the regression), and the author of that revision should at least take a look, and if it's *really* not his fault and he can't fix it, then he can assign it back to ros-bugs. * Amine Khaldi mentioned that at the moment there is no way to know what developers are working on exactly, until they commit, and suggested using bug reports to document the development, so that commits will mention them at the end. * Amine also suggested the following process for the regressions: We assign those regressions to the author of the guilty revision, the developer investigates the regression. If he's able to fix the bug, he changes the bug status to "Assigned" which means he now owns this bug. If he can't fix it, he will document his finding so far (a comment in the bug report) and he assigns the bug to any other developer that he thinks he can fix this, and so on. * Everyone agreed, as a result, that we should assign regressions, and that developers should look at what's assigned to them. * Point 2: Overview of the Atlassian tools ------------------------------------------ * Amine Khaldi gave an overview of what we plan to do with Atlassian products (Jira, FishEye, Crucible, Bamboo..etc) in case people didn't go to their website to read about them and watch their videos (http://www.atlassian.com/). * Olaf Siejka asked about an ETA for the Atlassian tools adoption. Aleksey Bragin mentioned that this will happen in the coming two weeks. * Point 3: Discussing a possible change in the release cycle ------------------------------------------------------------ * Alexander Rechitskiy presented some links from the KDE project about their svn guidelines, commit policy, release schedule, minor point releases...etc. * After a lengthy discussion, the team decided to continue the already started efforts to improve efficiency and minimize regressions (like leveraging Patchbot, the recent major Testman improvements...etc). * Meeting closed at 21:26 UTC by Amine Khaldi. * Minutes written by Amine Khaldi.

13 years

2nd Boot Regional Settings Crash

by James Tabor

Hi! Did anyone notices this? I think someone on IRC tried to point this out to me..... Tested: rundll32.exe shell32.dll,Control_RunDLL input.dll from the cmd line and it works. user32/windows/message.c:1441) CallWindowProcW Unicode Failed! Msg 273 WndProc 71C25AC8 Entered debugger on first-chance exception (Exception Code: 0xc0000005) (Page Fault) Memory at 0x71C2D810 could not be written: Page protection violation. kdb:> bt Eip: <kernel32.dll:ea7f> client/proc.c:2709 (CreateProcessInternalW@48) Frames: <kernel32.dll:fbd8> client/proc.c:3299 (CreateProcessW@40) <syssetup.DLL:4a9c> syssetup/wizard.c:837 (RunControlPanelApplet) <syssetup.DLL:5c4e> syssetup/wizard.c:914 (LocalePageDlgProc@16) RunControlPanelApplet(hwndDlg, L"rundll32.exe shell32.dll,Control_RunDLL input.dll,@1"); <user32.dll:4dfdc> windows/message.c:1407 (@IntCallWindowProcW@28) <user32.dll:4fd7e> windows/message.c:1747 (CallWindowProcW@20) <user32.dll:36184> windows/dialog.c:1701 (DefDlgProcW@16) <user32.dll:4dfdc> windows/message.c:1407 (@IntCallWindowProcW@28) <user32.dll:4e735> windows/message.c:1667 (IntCallMessageProc@24) <user32.dll:4ea2f> windows/message.c:2266 (SendMessageW@16) <user32.dll:3b57> controls/button.c:424 (ButtonWndProc_common@20) <user32.dll:42a2> controls/button.c:612 (ButtonWndProcW@16) <user32.dll:4dfdc> windows/message.c:1407 (@IntCallWindowProcW@28) <user32.dll:4e735> windows/message.c:1667 (IntCallMessageProc@24) <user32.dll:4fa2b> windows/message.c:1916 (DispatchMessageW@4) <user32.dll:35a65> windows/dialog.c:2591 (IsDialogMessageW@8) <syssetup.DLL:6612> syssetup/wizard.c:2408 (InstallWizard) <syssetup.DLL:2448> syssetup/install.c:957 (InstallReactOS@4) <setup.exe:10cc> <setup.exe:21dc> <setup.exe:149b>--- Press q to abort, any other key to continue --- <setup.exe:14fd> <kernel32.dll:fc4a> <00000000>

13 years

Re: [ros-dev] [ros-diffs] [tkreuzer] 56356: [NTOSKRNL] Fix SepGet*FromDescriptor, returning NULL, when the relative offset is 0. Fixes VMware tools installer.

by Ged Murphy

> Author: tkreuzer > [NTOSKRNL] > Fix SepGet*FromDescriptor, returning NULL, when the relative offset is 0. > Fixes VMware tools installer. Someone buy that man a beer!

13 years

Does CMake take longer than rbuild

by Marvin Zhang

Hi guys, I have compiled the whole project and just want to copy ntoskrnl. Here is what I execute: --------------------------------------------------------------------- D:\ReactOS\src\ReactOS-0.3.14-CLT2012>make ntoskrnl_install [COPY] Z:\ReactOS\system32\ntoskrnl.exe Total Build Time: 00:02:04 --------------------------------------------------------------------- I don't know why it takes more than 2 minutes. Is it correct? Thanks.

13 years

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Ros-dev April 2012