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DEBUG Add debug prints to find problems on KVM x64

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This commit is contained in:
Timo Kreuzer
2025-04-12 13:51:47 +03:00
parent 8ca5625f24
commit b7e7b71ede
1 changed files with 23 additions and 3 deletions
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26
ntoskrnl/io/iomgr/driver.c
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@@ -11,7 +11,7 @@
/* INCLUDES *******************************************************************/ /* INCLUDES *******************************************************************/
#include <ntoskrnl.h> #include <ntoskrnl.h>
#define NDEBUG //#define NDEBUG
#include <debug.h> #include <debug.h>
#include <mm/ARM3/miarm.h> #include <mm/ARM3/miarm.h>
@@ -463,7 +463,7 @@ IopInitializeDriverModule(
return Status; return Status;
} }
DPRINT("Driver name: '%wZ'\n", &DriverName); DPRINT1("IopInitializeDriverModule: '%wZ'\n", &DriverName);
/* /*
* Retrieve the driver's PE image NT header and perform some sanity checks. * Retrieve the driver's PE image NT header and perform some sanity checks.
@@ -513,6 +513,7 @@ IopInitializeDriverModule(
if (!NT_SUCCESS(Status)) if (!NT_SUCCESS(Status))
{ {
DPRINT1("IopInitializeDriverModule failed to get info: 0x%lx\n", Status);
RtlFreeUnicodeString(&ServiceName); RtlFreeUnicodeString(&ServiceName);
RtlFreeUnicodeString(&DriverName); RtlFreeUnicodeString(&DriverName);
MmUnloadSystemImage(ModuleObject); MmUnloadSystemImage(ModuleObject);
@@ -578,6 +579,7 @@ IopInitializeDriverModule(
Status = ObInsertObject(driverObject, NULL, FILE_READ_DATA, 0, NULL, &hDriver); Status = ObInsertObject(driverObject, NULL, FILE_READ_DATA, 0, NULL, &hDriver);
if (!NT_SUCCESS(Status)) if (!NT_SUCCESS(Status))
{ {
DPRINT1("Error while inserting driver object \"%wZ\" status %x\n", &DriverName, Status);
ExFreePoolWithTag(nameInfo, TAG_IO); ExFreePoolWithTag(nameInfo, TAG_IO);
RtlFreeUnicodeString(&ServiceName); RtlFreeUnicodeString(&ServiceName);
RtlFreeUnicodeString(&DriverName); RtlFreeUnicodeString(&DriverName);
@@ -597,6 +599,7 @@ IopInitializeDriverModule(
if (!NT_SUCCESS(Status)) if (!NT_SUCCESS(Status))
{ {
DPRINT1("Error while referencing driver object \"%wZ\" status %x\n", &DriverName, Status);
ExFreePoolWithTag(nameInfo, TAG_IO); // container for RegistryPath ExFreePoolWithTag(nameInfo, TAG_IO); // container for RegistryPath
RtlFreeUnicodeString(&ServiceName); RtlFreeUnicodeString(&ServiceName);
RtlFreeUnicodeString(&DriverName); RtlFreeUnicodeString(&DriverName);
@@ -613,6 +616,7 @@ IopInitializeDriverModule(
TAG_IO); TAG_IO);
if (!serviceKeyName.Buffer) if (!serviceKeyName.Buffer)
{ {
DPRINT1("Error while allocating service key name buffer \"%wZ\" status %x\n", &DriverName, Status);
ObMakeTemporaryObject(driverObject); ObMakeTemporaryObject(driverObject);
ObDereferenceObject(driverObject); ObDereferenceObject(driverObject);
ExFreePoolWithTag(nameInfo, TAG_IO); // container for RegistryPath ExFreePoolWithTag(nameInfo, TAG_IO); // container for RegistryPath
@@ -636,6 +640,7 @@ IopInitializeDriverModule(
TAG_IO); TAG_IO);
if (!driverNamePaged.Buffer) if (!driverNamePaged.Buffer)
{ {
DPRINT1("Error while allocating driver name buffer \"%wZ\" status %x\n", &DriverName, Status);
ObMakeTemporaryObject(driverObject); ObMakeTemporaryObject(driverObject);
ObDereferenceObject(driverObject); ObDereferenceObject(driverObject);
ExFreePoolWithTag(nameInfo, TAG_IO); // container for RegistryPath ExFreePoolWithTag(nameInfo, TAG_IO); // container for RegistryPath
@@ -691,6 +696,7 @@ IopInitializeDriverModule(
if (!NT_SUCCESS(Status)) if (!NT_SUCCESS(Status))
{ {
DPRINT1("Driver <%wZ> failed to initialize, unloading it\n", &driverObject->DriverName);
// if the driver entry has been failed, clear the object // if the driver entry has been failed, clear the object
ObMakeTemporaryObject(driverObject); ObMakeTemporaryObject(driverObject);
ObDereferenceObject(driverObject); ObDereferenceObject(driverObject);
@@ -699,12 +705,20 @@ IopInitializeDriverModule(
*OutDriverObject = driverObject; *OutDriverObject = driverObject;
DPRINT1("Calling MmFreeDriverInitialization\n");
MmFreeDriverInitialization((PLDR_DATA_TABLE_ENTRY)driverObject->DriverSection); MmFreeDriverInitialization((PLDR_DATA_TABLE_ENTRY)driverObject->DriverSection);
/* Set the driver as initialized */ /* Set the driver as initialized */
DPRINT1("Calling IopReadyDeviceObjects\n");
IopReadyDeviceObjects(driverObject); IopReadyDeviceObjects(driverObject);
if (PnpSystemInit) IopReinitializeDrivers(); if (PnpSystemInit)
{
DPRINT("Calling IopReinitializeDrivers\n");
IopReinitializeDrivers();
}
DPRINT1("IopInitializeDriverModule: success\n");
return STATUS_SUCCESS; return STATUS_SUCCESS;
} }
@@ -821,6 +835,8 @@ IopInitializeBuiltinDriver(IN PLDR_DATA_TABLE_ENTRY BootLdrEntry)
UNICODE_STRING ServiceName; UNICODE_STRING ServiceName;
BOOLEAN Success; BOOLEAN Success;
DPRINT1("IopInitializeBuiltinDriver: '%wZ'\n", ModuleName);
/* /*
* Display 'Loading XXX...' message * Display 'Loading XXX...' message
*/ */
@@ -1013,6 +1029,7 @@ Cleanup:
/* Remove extra reference from IopInitializeDriverModule */ /* Remove extra reference from IopInitializeDriverModule */
ObDereferenceObject(DriverObject); ObDereferenceObject(DriverObject);
DPRINT1("IopInitializeBuiltinDriver done: %u\n", deviceAdded);
return deviceAdded; return deviceAdded;
} }
@@ -1049,6 +1066,7 @@ IopInitializeBootDrivers(VOID)
if (!NT_SUCCESS(Status)) if (!NT_SUCCESS(Status))
{ {
/* Fail */ /* Fail */
DPRINT1("IoCreateDriver failed: 0x%lx\n", Status);
return; return;
} }
@@ -1086,7 +1104,9 @@ IopInitializeBootDrivers(VOID)
if (LdrEntry->Flags & LDRP_DRIVER_DEPENDENT_DLL) if (LdrEntry->Flags & LDRP_DRIVER_DEPENDENT_DLL)
{ {
/* Call its entrypoint */ /* Call its entrypoint */
DPRINT("calling DllInit for '%wZ'\n", &LdrEntry->BaseDllName);
MmCallDllInitialize(LdrEntry, NULL); MmCallDllInitialize(LdrEntry, NULL);
DPRINT("DllInit for '%wZ' done\n", &LdrEntry->BaseDllName);
} }
} }