Page Fault on locked memory

TheMSsForum.com: The Microsoft Software Forum

The MSS Forum ‹ Drivers
- Archive
  - Biz
  - MCSE
  - CRM
  - Drivers
  - Framework
  - ADO
  - ASP
  - Compact
  - Forms
  - Dotnet
  - C#
  - VB
  - FontpageGen
  - Excel
  - WorkSheet
  - Exchange
  - Setup
  - Fox
  - Fontpage
  - ASP
  - IIS
  - Entourage
  - Money
  - Messanger
  - PocketPC
  - Powerpoint
  - Project
  - Publisher
  - Excel
  - VB
  - Security
  - Portal
  - Services
  - SQLServerDev
  - SVCS
  - SQLServer
  - VB
  - VC
  - MFC
  - ExcelGen

- Previous
  - 1
    - Printer Driver Serial communication Question I'm writing a printer driver. I modified the pjlmon.c from the WINDDK. When the printer is not printing a job, I want to send a command to the printer via Serial communication and be able to read back the answer (so I could get the printer status). I have no problem sending the command, I used the RawDataToPrinter() function that I found as an example in the MSDN library. But I can't find a way to read from the printer. I always get an invalid handle. I tried with ReadCommand() and ReadPrinter(). I understand that the com port should always be open. But how can I get the right handle to read from it Mike Tag: Page Fault on locked memory Tag: 46132
  - 2
    - AVStream: Do we need to KsEdit the AllocatorFraming member? HI, I noticed that the AVSHWS sample driver KsEdit the AllocatorFraming member of KSPIN_DESCRIPTOR_EX during Pin->Create(). Do we need to do this? Why? Thanks Tag: Page Fault on locked memory Tag: 46128
  - 3
    - complete list of driver stack in windbg when i use !devstack for example for nv device known from !arbiter 4 i got only 3 devices nv,viaagp1 and pci, i want to know all drivers that irp to nv are going through, filters , is this complete stack and no filters are etc ? Tag: Page Fault on locked memory Tag: 46123
  - 4
    - How to setting KSTOPOLOGY_CONNECTION structures ?? Hi all if I have a figure like this input--> [node] --->output input--> How to setting KSTOPOLOGY_CONNECTION structures ?? and when should I need to setting a TOPOLOGY?? Thanks a lot Tag: Page Fault on locked memory Tag: 46120
  - 5
    - IRP never return? help! It should be a simple problem to you. One switch of the DEVICE_IO_CONTROL_CODE in my IRP_MJ_DEVICE_CONTROL dispatch routine , i use UsbBuildVendorRequest marco like this . Inside the BulkUsb_CallUSBD ,The status returned by IoCallDriver is IRP pending , the USB trasfer between driver and firware had been completed,but KeWaitForSingleObject function in BulkUsb_CallUSBD is never return.. ??? in dispatch routine: PURB OutputPinURB; USHORT URBsiz; USHORT OutputPin; URBsiz=sizeof(struct _URB_CONTROL_VENDOR_OR_CLASS_REQUEST); OutputPinURB=ExAllocatePool(NonPagedPool,URBsiz); OutputPin=Extension->OutputPin; UsbBuildVendorRequest(OutputPinURB, URB_FUNCTION_CLASS_INTERFACE , URBsiz, 0,//FLAG 0, 0x22, OutputPin, 0, NULL, //BUFFER NULL, 0, NULL); //then , call the BulkUsb function , to pass the urb done Status= BulkUsb_CallUSBD(DeviceObject,OutputPinURB); BulkUsb_CallUSBD : there is almode no any modification of sample code "BulkUSB" , except "deviceExtension->TopDeviceObject" changed as "deviceExtension->LowerDeviceObject" . NTSTATUS BulkUsb_CallUSBD( IN PDEVICE_OBJECT DeviceObject, IN PURB Urb ) /*++ Routine Description: Passes a URB to the USBD class driver The client device driver passes USB request block (URB) structures to the class driver as a parameter in an IRP with Irp->MajorFunction set to IRP_MJ_INTERNAL_DEVICE_CONTROL and the next IRP stack location Parameters.DeviceIoControl.IoControlCode field set to IOCTL_INTERNAL_USB_SUBMIT_URB. Arguments: DeviceObject - pointer to the physical device object (PDO) Urb - pointer to an already-formatted Urb request block Return Value: STATUS_SUCCESS if successful, STATUS_UNSUCCESSFUL otherwise --*/ { NTSTATUS ntStatus, status = STATUS_SUCCESS; PSERIAL_DEVICE_EXTENSION deviceExtension; PIRP irp; KEVENT event; IO_STATUS_BLOCK ioStatus; PIO_STACK_LOCATION nextStack; SerialDump(SERIRPPATH,("enter BulkUsb_CallUSBD\n")); deviceExtension = DeviceObject->DeviceExtension; // // issue a synchronous request // KeInitializeEvent(&event, NotificationEvent, FALSE); irp = IoBuildDeviceIoControlRequest( IOCTL_INTERNAL_USB_SUBMIT_URB, deviceExtension->LowerDeviceObject, //Points to the next-lower driver's device object NULL, // optional input bufer; none needed here 0, // input buffer len if used NULL, // optional output bufer; none needed here 0, // output buffer len if used TRUE, // If InternalDeviceControl is TRUE the target driver's Dispatch // outine for IRP_MJ_INTERNAL_DEVICE_CONTROL or IRP_MJ_SCSI // is called; otherwise, the Dispatch routine for // IRP_MJ_DEVICE_CONTROL is called. &event, // event to be signalled on completion &ioStatus); // Specifies an I/O status block to be set when the request is completed the lower driver. // // As an alternative, we could call KeDelayExecutionThread, wait for some // period of time, and try again....but we keep it simple for right now // if (!irp) { return STATUS_INSUFFICIENT_RESOURCES; } // // Call the class driver to perform the operation. If the returned status // is PENDING, wait for the request to complete. // nextStack = IoGetNextIrpStackLocation(irp); BULKUSB_ASSERT(nextStack != NULL); // // pass the URB to the USB driver stack // nextStack->Parameters.Others.Argument1 = Urb; ntStatus = IoCallDriver(deviceExtension->LowerDeviceObject, irp); SerialDump(SERIRPPATH,("BulkUsb_CallUSBD() return from IoCallDriver USBD %x\n", ntStatus)); if (ntStatus == STATUS_PENDING) { status = KeWaitForSingleObject( &event, Suspended, KernelMode, FALSE, NULL); } else { ioStatus.Status = ntStatus; } SerialDump(SERIRPPATH,("BulkUsb_CallUSBD() URB status = %x status = %x irp status %x\n", Urb->UrbHeader.Status, status, ioStatus.Status)); // // USBD maps the error code for us // ntStatus = ioStatus.Status; SerialDump(SERIRPPATH,("exit BulkUsb_CallUSBD (%x)\n", ntStatus)); return ntStatus; } Tag: Page Fault on locked memory Tag: 46119
  - 6
    - File Transfer stopped while system entered standby in Windows XP H I have a question, is it normal for File Transfer stopped while system entered standby mode in WinXP or Win2K if it is abnormal, does Microsoft has any document described related to this Benajmi Tag: Page Fault on locked memory Tag: 46117
  - 7
    - Get the USB host controller speed within miniport driver Hi, Is there anyone can tell me how to get the USB host controller speed (High/Full speed) connected within NDIS-WDM miniport driver?? Thanks, George Tag: Page Fault on locked memory Tag: 46116
  - 8
    - doc about EAP Hi, I have created a client that can associate a wireless adapter to a WPA-PSK-tkip network. Now I have been setting up the wired network to use a radius server too (IAS) and I monitored what the wzc send and noticed it starts sending EAP messages instead of EAPOL (in the pairwise handshake and group handshake) Now the 802.11i draft describes more the EAPOL messages, where can I read how the EAP messages are structured and used, at the moment I have set it up to use PEAP-MS-CHAP v2, but also EAP-TLS is interesting. thanks /Niklas Tag: Page Fault on locked memory Tag: 46106
  - 9
    - AVStream : how to assign my device extension? Dear All How could I assign my defined DeviceExtension to an AVStream device object? PS : I use KsInitializeDriver to initialize my AVStream driver Does AVStream assign a default DeviceExtension Best Regards Edward Tag: Page Fault on locked memory Tag: 46105
  - 10
    - Virtual Device Driver Basics Good Day I was wondering where to get information on Virtual devices on windows 2K/XP I want to make a driver that detects if any of our products are connected (Serial/USB) and then acts as a generic PCSC driver to any of these devices. Our clients do not want to layer the driver atop the HID/Serial driver because they also want direct access to the hardware from user mode.. Can anybody help me with this With Best Regards StreaX Tag: Page Fault on locked memory Tag: 46103
  - 11
    - NdisGetReceivedPacket in IM driver Hi all Can I just omit the call to NdisGetReceivedPacket in Ptreceive Handler? Can I just use the NdisTransferData call to get the packet in my IM driver? (I am currently using both of above) Are there any NIC’s which will only send the packet in response to NdisGetReceivedPacket and not to NdisTransferData? Thanks in advance Hardeep Tag: Page Fault on locked memory Tag: 46102
  - 12
    - To Microsoft Guys Hi all I was installing a Proxy server which uses an IM driver on windows 2003 server. It was an old version. (It woks pretty good on 2000) The system generated error message telling that the driver would not be loaded because it can make the system unstable ………but it allowed the bindings to be changed. This caused all the Network communication to stop. Even when I uninstalled the proxy program the bindings and the registry data for the drivers were still there.( I changed the registry entry in driver to make the miniport’s manually un-installable). My question is if Windows determines that the drivers will make the system unstable and will not load them, then why during installation it allows the bindings to be changed …….or why doesn’t it reverts back to the old bindings? Regards Hardeep Tag: Page Fault on locked memory Tag: 46101
  - 13
    - compilation errors in rpcdce.h i am trying to build drivers using win2003 ddk. i get compilation erros when including rpcdce.h. are there any fixes or patches for this? thanks Tag: Page Fault on locked memory Tag: 46099
  - 14
    - 'This is your chance to... Hi, ..finally, at last, you have made it to the answers to your questions." If I had an endorsement from you to your client base, it will prove to be beneficial for all involved. More importantly, you are sure to genuinely help those clients. We provide an education that takes you through all of the steps required. This is your chance to help people that really deserve to succeed. A chance to make a difference, a chance to change people's lives. This is not only a course, or a system, or an innovation or an evolution, it is THE START of what will be the next generation of webmasters...and you'll reap-the-rewards as an affiliate. I don't send this letter to make sales, I send this to change lives, real human beings lives! Do it Now! Take Action Today! Julie Barkley Check this out to get your ad copy with customized affiliate: http://freeadguru.com/cgi-bin/i.pl?c=r&i=20802 http://www.freeadguru.com/cgi-bin/o.pl?o=16718 http://www.freeadguru.com/cgi-bin/o.pl?o=16719 http://moneyhome.com/cgi-bin/read.pl?choice=read&file=in&id=20802 http://www.emailmarketingleads.com/pem/irepsonline http://www.aweber.com/?202896 --- MAF Anti-Spam ID: 20040527130128C1n4RsV8 Tag: Page Fault on locked memory Tag: 46097
  - 15
    - How to turn off dithering in (RDP) display driver When an application uses more colors that the video device can generate, the device driver (and/or GDI subsystem ?) for line objects (like text) approximates requested color to the nearest color device can generate or for solid brushes - simulates requested color by dithering (mixing colors in a pattern). In common situations the color simulation is a very useful but sometimes it gives unexpected effects when color of written text is the same as (or similar to) one of dithered colors of the background plane. The lowest color depth of the video device the worse visual effects we get - e.g. for 256 colors video driver for Win 2K Terminal server (based on RDP 5.0 protocol). In such case it could be very interesting to observe how display quality would improve (if any) when dithering will be turned off. But how to disable this function of RDP display driver? Is that any dedicated registry key which controls dithering? Or perhaps is any other way to disable dithering? Thanks in advance A. Tag: Page Fault on locked memory Tag: 46095
  - 16
    - wan intermediate driver problem Hi, I am writing a wan intermediate driver with TAPI support for Windows98 SE. When i install the driver, the installation goes on fine. But tapi calls do not happen. OID_TAPI_PROVIDER_INITIALIZE and ..SHUTDOWN gets called. But no other tapi oid's are getting called. Also, from a tapi application like tapi browser, lineInitialize returns success, but lineOpen fails. Any idea what is the problem, & where should i be looking for? Anand. Tag: Page Fault on locked memory Tag: 46087
  - 17
    - general printer driver question Hi Does someone have a solution how to implement a fax-printer driver that provides a virtual printer that you can share in the network? Today the problem is, that fax-drivers show the "enter fax number"-dialogs on the server and not on the computer that sends the fax. Now, this doesn't work... and I don't know if it's possible to solve this. MR Tag: Page Fault on locked memory Tag: 46085
  - 18
    - NETBIOS Name resolution request inside TDI filter Hi I have to get the remote machine name from NETBIOS request. Inside TDI filter, I wanted to know which remote p.c the user is trying to acccces, if it is not in the domain, I have to redirect the request Is there anyway I can do this, ie Netbios name resolution (UDP,137 I can get TDI_SEND_DATAGRAM request if the following is tru DNS Suffix Search List. . . . . . : xyz.com Connection-specific DNS Suffix . : xyz.com then I can intercept DNS query and can take appropriate action. But if there is no connection specific suffix associated, how can I get the remote machine name Please help me ASAP ThanX in advance Tag: Page Fault on locked memory Tag: 46076
  - 19
    - override FILE_FLAG_OVERLAPPED Hi, I'm working on a device driver which supports asynchronous (overlapped) I/O. However, overlapped I/O doesn't work if the user didn't set FILE_FLAG_OVERLAPPED when calling CreateFile(). I want to override this and "reopen" the file with FILE_FLAG_OVERLAPPED set. ReOpenFile() can solve this, but requires Windows Server 2003. Is there a solution for Windows 2000 / NT 4.0 ? TIA, Yair Tag: Page Fault on locked memory Tag: 46075
  - 20
    - Removing inf using SetupUninstallOEMInf Hi all I have written a uninstaller which uninstalls the driver first using SetupDi calls, then tries to remove the .inf and .pnf files through "SetupUninstallOEMInf". I get the installed oem* file name during installation using "SetupCopyOEMInf" My problem is "SetupUninstallOEMInf" fails with error 259(no more data is available). If I delete the oem*.inf and oem*.pnf files using "Deletefile" API, it deletes successfuly but GetLastError() gives error 259. This method successfully uninstalls the driver. Is this a proper method of removing inf files ? Can anybody please tell me the cause of error 259 Any help would be grealty appreciated Thanks in advanc Regard Prashanth Sheno Tag: Page Fault on locked memory Tag: 46073
  - 21
    - USB Port resets after S3 standby Hi, I have an application that automatically brings my computer out of standby and immediately issues a command to my USB-based (1.1) infrared blaster. The problem is that it seems Windows XP likes to "reset" the USB ports as it comes out of standby, which takes about 5-10 seconds. I know this, because I can hear the generic USB plug-in sound. And while the reset is happening, the command to the infrared device takes place and fails (because Windows doesn't think the device is present until the "reset" is complete). By the way, the USB device stays on all through the S3 standby (enabled with the correct motherboard jumper settings). So, this "reset" seems somewhat useless to me. Does anyone know how to stop Windows from re-registering the USB port after S3 standby? I'm sorry that this is more of a configuration question than a development one, but I'm not having any success elsewhere. Thanks, Aaron Tag: Page Fault on locked memory Tag: 46072
  - 22
    - Unidrv - Printable Area Hi All I've tried crazy values for the *CursorOrigin attribute in the GPD, but can't find any difference in the command stream that is generated. Does the *CursorOrigin attribute make sense only for the application or Unidrv adds commands in the stream for this attribute Regards Naresh Tag: Page Fault on locked memory Tag: 46071
  - 23
    - unable to load NDIS miniport driver hi all In the BSP under PLATFORM I have included a folder of the miniport driver under DRIVER and taken care of make, source and .def fil The project.reg and project.bib file is taken care too Query When I build the platform I am facing a build error saying "Don't Know How TO make <xxx>.def File Could u help me on that so that I am able to load the driver .dll file successfully Your views could be of great help to me Thanks in advanc Vivek B. Tag: Page Fault on locked memory Tag: 46066
  - 24
    - DIFxApp and Ndis IM driver install miniport problem I download DIFX and check DpInst.exe with Samples\Network.Intermediate (I simply put this exe file to driver root directory). DpInst incomplete install this driver - protocol part only The similar problem is observed with use DIFxApp in msi package. Tag: Page Fault on locked memory Tag: 46065
  - 25
    - ZwOpenFile helppppppppp Hi all ! I must Open a file in my Driver , The fragment code as below . But it always can not be opened .. Pls tell me why ?? Thanks in advance ! HANDLE fileOpen; OBJECT_ATTRIBUTES objAttr; UNICODE_STRING sLinkName; #define FILE_NAME L"C:\\test.out" RtlInitUnicodeString( &sLinkName, FILE_NAME); KIRQL oldIrql, newIrql = PASSIVE_LEVEL; KeRaiseIrql(newIrql,&oldIrql); InitializeObjectAttributes( &objAttr, &sLinkName, OBJ_KERNEL_HANDLE, NULL, NULL); LARGE_INTEGER nSize; IO_STATUS_BLOCK ioStat; NTSTATUS statusOpen = ZwOpenFile( OUT &fileOpen, IN FILE_READ_DATA | FILE_WRITE_DATA, IN &objAttr, OUT &ioStat, IN FILE_SHARE_READ, IN FILE_NON_DIRECTORY_FILE ); Tag: Page Fault on locked memory Tag: 46064
- Next
  - 1
    - DeviceIOControl I want to send IRP_MJ_DEVICEIOCONTROL to the stream driver from kernel mode. Is there function similar to DeviceIOControl or I have to send IRP to driver directrly? Tag: Page Fault on locked memory Tag: 46058
  - 2
    - Driver Chain Manager Hi, all! Did anybody write driver, compatible with DCM? Task is to write magnifier. I think, this will require tapping video driver. DCM establishes a set of rules, governing display driver interception. First of all, I should estimate complexity and volume of work. Now, I am trying to write test chain driver, intercepting DDI calls. Questions: 1) I can't compile driver, using WinDDK. Linker can't resolve DCM calls. I have dcmkrnl.dll, dcmuser.dll installed. I do not have any .lib files.(Do I need them or I can manege with .dll files?) What should me adjust? 2) Documention, that I have found, is insufficient. I don't have samples, that I can modify. Does anybody have samples or detailed documentation? 3) DCM is a relatively new component. Is it reliable enough? Yuri Tag: Page Fault on locked memory Tag: 46051
  - 3
    - NIC again How can I access registers on a NIC (RTL8029AS), specyfication gives me registers , but where are they, in some structure to write directly to NIC memory or what?? I'm workig and writing for win2k. Do I have to worry about PHY in my miniport driver?? Living it alone without managing would cause errors?? Tag: Page Fault on locked memory Tag: 46050
  - 4
    - Thread in driver ?? Hi All ! Anyone has worked with Numega Studio to write a Driver ? I must write a Driver filter for Com Port and synchronize system time between 2 computer via Com port ( call them Server and Client ). In the server side , there is one User application to active the driver and User can click on a Button in application to tell the Driver to implement synchronization time with the Client . In the Client side , There is no application , only Install Driver . And the Driver in the client side must use a Thread to detect when the Signal from server has come . SO, My task now is that I must create a Thread in Driver in order to detect when the signal has come to the Port . Pls explain , how can i do this work? I have create a Thread and put it in the DispatchCreate ( I use Numega to write driver ) . So now , How can I detect the Signal came to the Port by this Thread? Pls explain the Mechanism ! Thanks in advance ! Tag: Page Fault on locked memory Tag: 46043
  - 5
    - play sound How can I play some sound from WDM driver? I suppose to use KsCreatePin to open sound stream. But I could not set its parameters properly. At the moment I obtain a handle to sound driver (1st parameter) but the socond one cause a problem. Could anybody provide me with example of how to call this function. I want to play PCM/44.1kHz/stereo sound. Tag: Page Fault on locked memory Tag: 46042
  - 6
    - Generic Device Identifier I am attempting to create a program that will inspect our companies machines and determine any drivers needed for devices based on the hardwareID, DeviceID, etc. One problem that I have encountered is a case where the mouse hardware ID is a generic ID. For example, the hardware ID on a Dell laptop is listed with the generic identifier of: ACPI\PNP0F13,*PNP0F13 This could match any number of mouse drivers, i.e. Alps touchpad driver or Synaptic, etc. The correct driver, or at least the driver shipped with the unit is an Alps touchpad driver. Do cases where a generic hardware ID is listed (and I'm sure there must be others --USB drivers come to mind) mean that any driver/INF matching that ID --whether it is Alps or Synaptic-- will work properly? Secondly, is there a way to determine which is the proper manufacturer/driver to install? Many thanks! JW Tag: Page Fault on locked memory Tag: 46030
  - 7
    - Strange Shutdown Problem I'm writing a driver for a PCI-Express device, although the "-Express" part should be irrelevant for this discussion. I started the driver from Walter Oney's driver wizard, and the power management code is essentially unchanged from the wizard code. Windows XP SP1a Checked. (I haven't tried Free; I suppose I should...) I can load, unload, and restart the driver to my heart's content. On a system restart, power state goes to D3, driver unloads, everything is happy. But when I try to do a system shutdown, most of the time it gets everything shut down, my power state goes to D3, my driver (apparently) unloads, the kernel debugger disconnects and waits for a reconnect, the screen goes to blue, and that's it. The power doesn't go off. SOMETIMES a shutdown works fine, but most of the time, I get this hang. If our device is not plugged in, it shuts down OK. Anybody have any wild ideas for me to try? I don't THINK it is a driver issue; I don't think the debugger would disconnect if my driver were still running. Any "I saw this once and here's what I did" stories welcome. -- - Tim Roberts, timr@probo.com Providenza & Boekelheide, Inc Tag: Page Fault on locked memory Tag: 46028
  - 8
    - unable to load the NDIS miniport driver to my platform hi all i am developing a miniport driver.have created a dir named DRIVERS under PLATFORM of my BSP have included the make,source and .def file too.(the configuration selected is Tiny Kernel and have exported required features from catalog to support my driver)when i build the platform i get a build error saying don't know how to make .def file can anyone help me on that issue. the necessary details to be put in project.reg and project.bib file is also taken care off is there anything i am missing necessary to build the miniport driver thanks in advanc regards Vivek B. Tag: Page Fault on locked memory Tag: 46023
  - 9
    - How to get "LowerDeviceObject" in NDIS-WDM driver? Hi all, If I want to send a URB, followed by Oney's book : Chapter12 - "Working with the Bus Driver" - function SendAwaitUrb(), I should call IoBuildDeviceIoControlRequest (IOCTL_INTERNAL_USB_SUBMIT_URB, pdx -> LowerDeviceObject, ...). But now I want to send URB from a NDIS-WDM miniport driver, actually, I'm trying to modify the DDK sample "ndiswdm" which made by Eliyas, how can I get the "LowerDeviceObject" in the ndis miniport driver? Many thanks in advance, Barry Tag: Page Fault on locked memory Tag: 46015
  - 10
    - Windows test logo for Blackberry 6280 Software can't pass the indows test logo for my Blackberry. Tag: Page Fault on locked memory Tag: 46012
  - 11
    - ... what do they mean? Hi I'm using CPSUI and I've a question about the documentation... for TVOT_EDITBOX they write pOptParam[1]->IconID is used for specifying the size, in bytes, of both the edit box and the buffer pointed to by pSel in the OPTITEM structure. ... now, what does this mean? What's the "size of the edit box" ?? They size of the pSel-Buffer is clear... but the edit box size? thanks for help MR Tag: Page Fault on locked memory Tag: 46008
  - 12
    - TSENG ET3000 driver for Win98 (or win95) SVGA800x600, 256 colors, download where? Hi, I am searching a driver for TSENG ET3000 video card, for Win 98 (or Win95), that supports SVGA 800x600 resolution, and 256 colors. Does anybody knows where can I download it from? Thanks. Sorin. Tag: Page Fault on locked memory Tag: 46006
  - 13
    - Wheel tab on mouse control panel Does anyone know how the mouse control panel decides whether to show the "Wheel" tab? Our experiments seem to be indicating that, rather than using some kind of IOCTL_MOUSE_QUERY_ATTRIBUTES call, it may be looking at the PNP ID of the currently installed mouse (at least for PS/2). The symptom is that if we install our driver using a compatible ID (PNP0F13) the tab shows up, but if we install the exact same driver on a device/platform specific PNP (e.g. SYN0010) the tab goes away, with no other changes. If this guess is correct, is there some kind of registry key or something that would cause the Wheel tab to come back? Some of our customers are complaining about it going away. -- ../ray\.. Tag: Page Fault on locked memory Tag: 45989
  - 14
    - Driver for Enhanced Parallel Port? I am designing a widget that needs to send and receive data on the parallel port. I have designed it to be compatible with an EPP mode. I plan to use an Advantech PCM-937x running XPe to talk to it. On CE 3.0, using a PCM-5820, I was able to simply read and write to the port registers, but something tells me it will be harder on XPe. Does someone know how to do this? I plan to use a .NET framework, so C#, C++ or VB.NET are the programming environments I want to use Tag: Page Fault on locked memory Tag: 45987
  - 15
    - Loading two IM driver on PPC2003 Hi, I am trying to load two IM derivers on my PPC2003 (i-mate). Currently I am working with sample 'passthru' code given. I made a two copies of passthru one named as IMDRIVER it's miniport section named as IMDRV1 and second one is PASSTHRU and it's miniport section is PASS1. Now, I load IMDRIVER first and have seen that it works fine. than i load PASSTHRU , I found that in the protocolBindAdapter function of the PASSTHRU ,the miniport secion of IMDRIVER (i.e.IMDRV1) is not comming and therefore PASSTHRU does'nt load successfully over IMDRIVER. Can any body shade light on it ?? Any suggesstion will be a great help for me. Thanks Niraj Tag: Page Fault on locked memory Tag: 45967
  - 16
    - assigning USB device drive letters I have a problem with a bunch of newer computers running 2000/XP where USB removable devices take mapped drive letter F: (used for a legacy application). Is there a way to in XP to start assigning letters for removable devices at a certain letter (say U:). The removable devices can change so permanently changing the device letter in disk management only works until they plug in a new device (that has not yet been permanently assigned a letter) Tag: Page Fault on locked memory Tag: 45957
  - 17
    - Behavior of AVStream after returning STATUS_PENDING from Process routine Hi there, I am writing a filter-centric avstream mini-driver. However, I discover that the filter's process routine is kept entering even I have returned STATUS_PENDING. I have no other AttempProcess statement elsewhere in my code. What's wrong? I have tried to comment out the SetTimer statement of the AVStream avssamp sample... however, it still works by keep entering the Process routine... Thanks for your kindest help. Regards, Panda Tag: Page Fault on locked memory Tag: 45956
  - 18
    - _kernel_ is _WIN32 under windows equivalent to _KERNEL_ flag in linux? Tag: Page Fault on locked memory Tag: 45952
  - 19
    - Hel pn Wait_semaphore IFSMGR READ Hi all I am writing a VxD in 98. I am hooking to the IFSMGR functions. The requirement i Whenevr a File read happens The VxD will block the call and inform the ring 3 application. Then the ring3 app will decide whether to allow or deny the request. For communication between the ring0 and ring 3 i am using a shared event When i am blocking the Read request in the IFSMGR read I am using a Wait_Semaphore( Once the response comes We will signal the semaphore It is working for some files and system hangs for other Here is the pseudo code of what iam doin IFS_MGR REa Get The File Nam Copy the file name to a structur structure.SemaphoreHandle = Create_Semaphore(0) Put structure in Queu _VWin32_SignalEvent( shared event) Wait_Semaphore(structure.SemaphoreHandle) Allow/deny the reques End IFMGR REA whenever the ring 3 issues an ioctl to read the request Read from queu Whenevr the ring 3 is giving a respons Signal_Semaphore(structure.SemaphoreHandle This works fine with notepad But when i am accessign anything in c:\windows, All dll it is hanging Is the code is reentrant as in case of 2000 Thank Jone Tag: Page Fault on locked memory Tag: 45949
  - 20
    - How to getdrive letter of the USB flash drive Is it possible to know the Drive letter assigned the flash drive, after its plugged in, I know the vid/pid of the device, I just want to save some data to the flash drive, but need to know whats the drive letter, as it can be different on different machines. Waz Tag: Page Fault on locked memory Tag: 45948
  - 21
    - Does NTFS suitable for removable device such as SD (Security Digital) or MMC ? Hi Does NTFS suitable for removable device such as SD (Security Digital) or MMC ? Tag: Page Fault on locked memory Tag: 45947
  - 22
    - How to setting KSDATAFORMAT tructures for MPEG4?? Hi all For the datarange ,we can find KS_DATARANGE_MPEG1_VIDEO KS_DATARANGE_MPEG2_VIDEO for MPEG1 and MPEG2,how about MPEG4?? another members of KSDATAFORMAT what value should I set?? Thanks a lot Tag: Page Fault on locked memory Tag: 45945
  - 23
    - TDI_EVENT_DISCONNECT When ClientEventDisconnect() is called I know how to get the address object but how do I get the connection object? Tag: Page Fault on locked memory Tag: 45943
  - 24
    - How to let FAT and FAT32 available only, for Formatting SD in windows XP Hi I am writting a SD (Security Digital) driver for WinXP/Win2000, after SD driver was installed. I wish that when I format the SD, there are only FAT and FAT32 available for choosing. How to do that Is it possible to do that by adding something in driver By the way, my SD driver was written in SCSI miniport. Thank you anyone who can give me a help Tag: Page Fault on locked memory Tag: 45941
  - 25
    - conditional compilation hi i do have a scenario in which certain portions of the file are to be included for a driver and others for user mode programs. i want to carry on a conditional compilation. does windows 2003 ddk build generate some env variables or flags to say if its a driver thanks. Tag: Page Fault on locked memory Tag: 45939

(Win 2000)

From the user app, I'm calling my kernel driver to fill the given
buffer with some data. The IOCTL is of type METHOD_OUT_DIRECT. The
buffer size can be from 128K to about 2MB. From the driver, I use
MmGetSystemAddressForMdlSafe() to get the address of the buffer. The
DDK doc says that the address is valid because it has been locked by
the manager already.

This has been working well for almost all the cases, but when I run
the app/driver together with a test program that creates a lot of
threads and takes up almost all of the system memory, I get a page
fault on the user buffer (without Soft-Ice, the sytem just reboots).
I've been told that when the OS is low on resources and experiences a
lot of page stealing, my "safe" buffer address may no longer be valid.

How can I be sure that the address MmGetSystemAddressForMdlSafe()
returns is valid? Would it help calling MmProbeAndLockPages()? I
don't mind if the OS fails to give me a valid address while the system
is very busy and low on memory, I'm just trying to avoid the reboot.

Re: Page Fault on locked memory by Maxim

Maxim
Tue Jun 01 12:37:57 CDT 2004

> How can I be sure that the address MmGetSystemAddressForMdlSafe()
> returns is valid?

It just returns NULL on failure.

--
Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
maxim@storagecraft.com
http://www.storagecraft.com

Re: Page Fault on locked memory by ppp_l_qqq

ppp_l_qqq
Thu Jun 03 11:19:15 CDT 2004

Well, the problem is that it didn't return NULL.

"Maxim S. Shatskih" <maxim@storagecraft.com> wrote in message news:<O#oVT7$REHA.2976@TK2MSFTNGP10.phx.gbl>...
> > How can I be sure that the address MmGetSystemAddressForMdlSafe()
> > returns is valid?
>
> It just returns NULL on failure.

Re: Page Fault on locked memory by Alexander

Alexander
Thu Jun 03 15:02:12 CDT 2004

Are you touching system address or user-space address?

"the veloper" <ppp_l_qqq@yahoo.com> wrote in message
news:de0ced42.0406030819.4fdbf7ad@posting.google.com...
> Well, the problem is that it didn't return NULL.
>
> "Maxim S. Shatskih" <maxim@storagecraft.com> wrote in message
news:<O#oVT7$REHA.2976@TK2MSFTNGP10.phx.gbl>...
> > > How can I be sure that the address MmGetSystemAddressForMdlSafe()
> > > returns is valid?
> >
> > It just returns NULL on failure.