[ion] 24413: - Get rid of the completely convoluted way that Phase 1 initialization was being ended, with umpteen events and waits and timeouts all synchronized from user-mode and do a simple 5-second wait to determine if smss started OK or not. - Promote the Phase 1 initialization thread by jumping directly into the zero-page thread, and remove manual zero-page thread initialization code since we simply jump into its main routine. - 100 less lines of code :)
5 Oct
2006
5 Oct
'06
4:14 p.m.
Author: ion
Date: Thu Oct 5 20:14:28 2006
New Revision: 24413
URL: http://svn.reactos.org/svn/reactos?rev=24413&view=rev
Log:
- Get rid of the completely convoluted way that Phase 1 initialization was being ended,
with umpteen events and waits and timeouts all synchronized from user-mode and do a simple
5-second wait to determine if smss started OK or not.
- Promote the Phase 1 initialization thread by jumping directly into the zero-page thread,
and remove manual zero-page thread initialization code since we simply jump into its main
routine.
- 100 less lines of code :)
Modified:
trunk/reactos/ntoskrnl/ex/init.c
trunk/reactos/ntoskrnl/include/internal/mm.h
trunk/reactos/ntoskrnl/mm/freelist.c
trunk/reactos/ntoskrnl/mm/mminit.c
Modified: trunk/reactos/ntoskrnl/ex/init.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ex/init.c?rev=244…
==============================================================================
--- trunk/reactos/ntoskrnl/ex/init.c (original)
+++ trunk/reactos/ntoskrnl/ex/init.c Thu Oct 5 20:14:28 2006
@@ -853,9 +853,6 @@
NTAPI
ExPhase2Init(PVOID Context)
{
- UNICODE_STRING EventName;
- HANDLE InitDoneEventHandle;
- OBJECT_ATTRIBUTES ObjectAttributes;
LARGE_INTEGER Timeout;
HANDLE ProcessHandle;
HANDLE ThreadHandle;
@@ -949,113 +946,37 @@
/* Initialize shared user page. Set dos system path, dos device map, etc. */
InitSystemSharedUserPage(KeLoaderBlock);
- /* Create 'ReactOSInitDone' event */
- RtlInitUnicodeString(&EventName, L"\\ReactOSInitDone");
- InitializeObjectAttributes(&ObjectAttributes,
- &EventName,
- 0,
- NULL,
- NULL);
- Status = ZwCreateEvent(&InitDoneEventHandle,
- EVENT_ALL_ACCESS,
- &ObjectAttributes,
- SynchronizationEvent,
- FALSE);
-
- /* Check for Success */
- if (!NT_SUCCESS(Status)) {
-
- DPRINT1("Failed to create 'ReactOSInitDone' event (Status
0x%x)\n", Status);
- InitDoneEventHandle = INVALID_HANDLE_VALUE;
- }
-
/* Launch initial process */
Status = ExpLoadInitialProcess(&ProcessHandle,
&ThreadHandle);
- /* Check for success, Bugcheck if we failed */
- if (!NT_SUCCESS(Status)) {
-
- KEBUGCHECKEX(SESSION4_INITIALIZATION_FAILED, Status, 0, 0, 0);
- }
-
- /* Wait on the Completion Event */
- if (InitDoneEventHandle != INVALID_HANDLE_VALUE) {
-
- HANDLE Handles[2]; /* Init event, Initial process */
-
- /* Setup the Handles to wait on */
- Handles[0] = InitDoneEventHandle;
- Handles[1] = ProcessHandle;
-
- /* Wait for the system to be initialized */
- Timeout.QuadPart = (LONGLONG)-1200000000; /* 120 second timeout */
- Status = ZwWaitForMultipleObjects(2,
- Handles,
- WaitAny,
- FALSE,
- &Timeout);
- if (!NT_SUCCESS(Status)) {
-
- DPRINT1("NtWaitForMultipleObjects failed with status 0x%x!\n",
Status);
-
- } else if (Status == STATUS_TIMEOUT) {
-
- DPRINT1("WARNING: System not initialized after 120 seconds.\n");
-
- } else if (Status == STATUS_WAIT_0 + 1) {
-
- /* Crash the system if the initial process was terminated. */
- KEBUGCHECKEX(SESSION5_INITIALIZATION_FAILED, Status, 0, 0, 0);
- }
+ /* Wait 5 seconds for it to initialize */
+ Timeout.QuadPart = Int32x32To64(5, -10000000);
+ Status = ZwWaitForSingleObject(ProcessHandle, FALSE, &Timeout);
+ if (Status == STATUS_SUCCESS)
+ {
+ /* Bugcheck the system if SMSS couldn't initialize */
+ KeBugCheck(SESSION5_INITIALIZATION_FAILED);
+ }
+ else
+ {
+ /* Close process handles */
+ ZwClose(ThreadHandle);
+ ZwClose(ProcessHandle);
/*
- * FIXME: FILIP!
- * Disable the Boot Logo
- */
+ * FIXME: FILIP!
+ * Disable the Boot Logo
+ */
if (!NoGuiBoot) InbvEnableBootDriver(FALSE);
- /* Signal the Event and close the handle */
- ZwSetEvent(InitDoneEventHandle, NULL);
- ZwClose(InitDoneEventHandle);
-
- } else {
-
- /* On failure to create 'ReactOSInitDone' event, go to text mode ASAP */
- if (!NoGuiBoot) InbvEnableBootDriver(FALSE);
-
- /* Crash the system if the initial process terminates within 5 seconds. */
- Timeout.QuadPart = (LONGLONG)-50000000; /* 5 second timeout */
- Status = ZwWaitForSingleObject(ProcessHandle,
- FALSE,
- &Timeout);
-
- /* Check for timeout, crash if the initial process didn't initalize */
- if (Status != STATUS_TIMEOUT) KEBUGCHECKEX(SESSION5_INITIALIZATION_FAILED,
Status, 1, 0, 0);
- }
-
- /* Enable the Clock, close remaining handles */
- ZwClose(ThreadHandle);
- ZwClose(ProcessHandle);
-
- DPRINT1("System initialization complete\n");
- {
- /* FIXME: We should instead jump to zero-page thread */
- /* Free initial kernel memory */
- MiFreeInitMemory();
-
- /* Set our priority to 0 */
- KeGetCurrentThread()->BasePriority = 0;
- KeSetPriorityThread(KeGetCurrentThread(), 0);
-
- /* Wait ad-infinitum */
- for (;;)
- {
- LARGE_INTEGER Timeout;
- Timeout.QuadPart = 0x7fffffffffffffffLL;
- KeDelayExecutionThread(KernelMode, FALSE, &Timeout);
- }
- }
-}
-
+ /* FIXME: We should free the initial process' memory!*/
+
+ /* Increase init phase */
+ ExpInitializationPhase += 1;
+
+ /* Jump into zero page thread */
+ MmZeroPageThreadMain(NULL);
+ }
+}
/* EOF */
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 (original)
+++ trunk/reactos/ntoskrnl/include/internal/mm.h Thu Oct 5 20:14:28 2006
@@ -974,7 +974,9 @@
NTSTATUS
NTAPI
-MmInitZeroPageThread(VOID);
+MmZeroPageThreadMain(
+ PVOID Context
+);
/* i386/page.c *********************************************************/
Modified: trunk/reactos/ntoskrnl/mm/freelist.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/freelist.c?rev…
==============================================================================
--- trunk/reactos/ntoskrnl/mm/freelist.c (original)
+++ trunk/reactos/ntoskrnl/mm/freelist.c Thu Oct 5 20:14:28 2006
@@ -17,7 +17,6 @@
#if defined (ALLOC_PRAGMA)
#pragma alloc_text(INIT, MmInitializePageList)
-#pragma alloc_text(INIT, MmInitZeroPageThread)
#endif
@@ -62,8 +61,6 @@
static LIST_ENTRY FreeUnzeroedPageListHead;
static LIST_ENTRY BiosPageListHead;
-static PETHREAD ZeroPageThread;
-static CLIENT_ID ZeroPageThreadId;
static KEVENT ZeroPageThreadEvent;
static BOOLEAN ZeroPageThreadShouldTerminate = FALSE;
@@ -1139,7 +1136,8 @@
return NumberOfPagesFound;
}
-VOID STDCALL
+NTSTATUS
+NTAPI
MmZeroPageThreadMain(PVOID Ignored)
{
NTSTATUS Status;
@@ -1148,6 +1146,13 @@
PPHYSICAL_PAGE PageDescriptor;
PFN_TYPE Pfn;
ULONG Count;
+
+ /* Free initial kernel memory */
+ MiFreeInitMemory();
+
+ /* Set our priority to 0 */
+ KeGetCurrentThread()->BasePriority = 0;
+ KeSetPriorityThread(KeGetCurrentThread(), 0);
while(1)
{
@@ -1160,13 +1165,12 @@
{
DbgPrint("ZeroPageThread: Wait failed\n");
KEBUGCHECK(0);
- return;
}
if (ZeroPageThreadShouldTerminate)
{
DbgPrint("ZeroPageThread: Terminating\n");
- return;
+ return STATUS_SUCCESS;
}
Count = 0;
KeAcquireSpinLock(&PageListLock, &oldIrql);
@@ -1201,46 +1205,11 @@
}
}
- DPRINT("Zeroed %d pages.\n", Count);
+ DPRINT1("Zeroed %d pages.\n", Count);
KeResetEvent(&ZeroPageThreadEvent);
KeReleaseSpinLock(&PageListLock, oldIrql);
}
-}
-
-NTSTATUS
-INIT_FUNCTION
-NTAPI
-MmInitZeroPageThread(VOID)
-{
- NTSTATUS Status;
- HANDLE ThreadHandle;
-
- ZeroPageThreadShouldTerminate = FALSE;
- Status = PsCreateSystemThread(&ThreadHandle,
- THREAD_ALL_ACCESS,
- NULL,
- NULL,
- &ZeroPageThreadId,
- MmZeroPageThreadMain,
- NULL);
- if (!NT_SUCCESS(Status))
- {
- KEBUGCHECK(0);
- }
-
- Status = ObReferenceObjectByHandle(ThreadHandle,
- THREAD_ALL_ACCESS,
- PsThreadType,
- KernelMode,
- (PVOID*)&ZeroPageThread,
- NULL);
- if (!NT_SUCCESS(Status))
- {
- KEBUGCHECK(0);
- }
-
- KeSetPriorityThread(&ZeroPageThread->Tcb, LOW_PRIORITY);
- NtClose(ThreadHandle);
+
return STATUS_SUCCESS;
}
Modified: trunk/reactos/ntoskrnl/mm/mminit.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/mminit.c?rev=2…
==============================================================================
--- trunk/reactos/ntoskrnl/mm/mminit.c (original)
+++ trunk/reactos/ntoskrnl/mm/mminit.c Thu Oct 5 20:14:28 2006
@@ -455,7 +455,6 @@
MmDeletePageTable(NULL, 0);
#endif
- MmInitZeroPageThread();
MmCreatePhysicalMemorySection();
MiInitBalancerThread();
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