Ros-dev

ros-dev@reactos.org

5788 discussions

Revision 20911 Boot Problems

by James Tabor

Hi all, WaxDragon gets this, (lib/setupapi/devinst.c:3167) Flags 0x800000 ignored (./lib/advapi32/service/scm.c:2035) dwBufSize: 0 (subsys/system/services/rpcserver.c:1759) ScmrStartServiceW() called (ntoskrnl/ke/i386/v86m.c:678) V86GPF unhandled (was cf) Entered debugger on last-chance exception number 14 (Page Fault) Memory at 0xf000e739 could not be written: Page not present. kdb:> bt Eip: <ntoskrnl.exe:65a69 (ntoskrnl/ke/i386/v86m.c:383 (KeV86GPF))> Frames: <ntoskrnl.exe:65d92 (ntoskrnl/ke/i386/v86m.c:791 (KeV86Exception))> <ntoskrnl.exe:62a1f (ntoskrnl/ke/i386/exp.c:514 (KiTrapHandler))> <ntoskrnl.exe:64cb1 (ntoskrnl/ke/i386/trap.s:151 (KiTrapProlog2))> <00000c33> kdb:> I get this, (lib/ntdll/ldr/utils.c:1190) LdrGetExportByName(): failed to find mxdMessage (lib/ntdll/ldr/utils.c:2015) Failed to create or open dll section of 'msacm.drv' (Status c0000135) (lib/ntdll/ldr/utils.c:2015) Failed to create or open dll section of 'midimap.dr v' (Status c0000135) (./subsys/win32k/ntuser/class.c:137) Failed to lookup class atom (ClassName 'SHE LLDLL_DefView')! (ntoskrnl/ke/i386/v86m.c:678) V86GPF unhandled (was ec) Entered debugger on last-chance exception number 14 (Page Fault) Memory at 0xdeadbeef could not be written: Page not present. kdb:> bt Eip: <ntoskrnl.exe:65aa9 (ntoskrnl/ke/i386/v86m.c:383 (KeV86GPF))> Frames: <ntoskrnl.exe:65dd2 (ntoskrnl/ke/i386/v86m.c:791 (KeV86Exception))> <ntoskrnl.exe:62a5f (ntoskrnl/ke/i386/exp.c:514 (KiTrapHandler))> <ntoskrnl.exe:64cf1 (ntoskrnl/ke/i386/trap.s:151 (KiTrapProlog2))> <00003443> <00000000> kdb:> Second reboot it worked after booting linux than reboot warm, third reboot by power on reset, (ntoskrnl/ke/i386/v86m.c:678) V86GPF unhandled (was ee) Entered debugger on last-chance exception number 14 (Page Fault) Memory at 0xdeadbeef could not be written: Page not present. kdb:> bt Eip: <ntoskrnl.exe:65aa9 (ntoskrnl/ke/i386/v86m.c:383 (KeV86GPF))> Frames: <ntoskrnl.exe:65dd2 (ntoskrnl/ke/i386/v86m.c:791 (KeV86Exception))> <ntoskrnl.exe:62a5f (ntoskrnl/ke/i386/exp.c:514 (KiTrapHandler))> <ntoskrnl.exe:64cf1 (ntoskrnl/ke/i386/trap.s:151 (KiTrapProlog2))> <00002eee> <00000000> kdb:> I can repeat this over and over with real hardware, Thanks, James

19 years

Listing function prototypes

by M Bealby

Hey everyone, just a quick question. Does anyone know of an existing application that will accept a bunch of header files as input and output a list of function prototypes? It would really help with my code auditing as I'm spending a long time assembling them by hand and it takes a long while. Cheers, Martin

19 years

Re: [ros-svn] [weiden] 20891: disable starting lsass.exe for now

by Thomas Weidenmueller

weiden(a)svn.reactos.org wrote: > disable starting lsass.exe for now It seems that rpcrt4.dll has a bug that massively leaks threads in an rpc server. It seems that it leaks one thread per request. - Thomas

19 years

Re: [ros-diffs] [ion] 20887: - Update KeContextToTrapFrame to support separate ContextFlags parameters in the scenario where we want to convert more then the Context's flag specify

by Thomas Weidenmueller

ion(a)svn.reactos.org wrote: > + Context->ContextFlags &= (~CONTEXT_EXTENDED_REGISTERS) | CONTEXT_i386; This looks a bit strange... - Thomas

19 years

Re: [ros-diffs] [weiden] 20864: make the initial kernel_stack large enough to have enough space for the fx savings area

by Hartmut Birr

weiden(a)svn.reactos.org wrote: > make the initial kernel_stack large enough to have enough space for the fx savings area > Modified: trunk/reactos/ntoskrnl/ke/i386/main_asm.S > Modified: trunk/reactos/ntoskrnl/ke/i386/thread.c > Modified: trunk/reactos/ntoskrnl/ke/main.c > > ------------------------------------------------------------------------ > *Modified: trunk/reactos/ntoskrnl/ke/i386/main_asm.S* > --- trunk/reactos/ntoskrnl/ke/i386/main_asm.S 2006-01-14 19:45:50 UTC (rev 20863) > +++ trunk/reactos/ntoskrnl/ke/i386/main_asm.S 2006-01-14 20:36:01 UTC (rev 20864) > @@ -35,7 +35,7 @@ > .m1: > /* Load the initial kernel stack */ > lea _kernel_stack, %eax > > - add $0x1000, %eax > > + add $0x2000, %eax > > and $0xFFFFE000, %eax > add $(0x3000 - SIZEOF_FX_SAVE_AREA), %eax > movl %eax, %esp > > ------------------------------------------------------------------------ I think the change in all 3 files is wrong. There was a bug in main_asm.S. The code to align the stack must be: .m1: lea _kernel_stack, %eax test $0xFFF, %eax jz .m2 and $0xFFFFF000, %eax add $0x1000, %eax .m2: add $(0x3000 - SIZEOF_FX_SAVE_AREA), %eax movl %eax, %esp - Hartmut

19 years

New Diff, adds more debug print outs.

by Jerry

I made a diff to add more debug print outs. I hope this group finds it usefull. Index: ntoskrnl/ldr/loader.c =================================================================== --- ntoskrnl/ldr/loader.c (revision 20851) +++ ntoskrnl/ldr/loader.c (working copy) @@ -331,6 +331,7 @@ /* Hook for KDB on loading a driver. */ KDB_LOADDRIVER_HOOK(Filename, Module); + CPRINT("Driver Load Success: %wZ\n", Filename); return(STATUS_SUCCESS); } Index: drivers/net/ndis/ndis/miniport.c =================================================================== --- drivers/net/ndis/ndis/miniport.c (revision 20851) +++ drivers/net/ndis/ndis/miniport.c (working copy) @@ -1414,7 +1414,8 @@ if (NdisStatus != NDIS_STATUS_SUCCESS || SelectedMediumIndex >= MEDIA_ARRAY_SIZE) { - NDIS_DbgPrint(MIN_TRACE, ("MiniportInitialize() failed for an adapter.\n" )); + NDIS_DbgPrint(MIN_TRACE, ("MiniportInitialize() failed for an adapter. NdisStatus = 0x%00000000x; %d >= %d \n", + NdisStatus, SelectedMediumIndex, MEDIA_ARRAY_SIZE)); return (NTSTATUS)NdisStatus; }

19 years

Re: [ros-svn] [gedmurphy] 20836: some new toolbar icons

by Martin Fuchs

Hello Ged, > some new toolbar icons > > Updated files: > trunk/reactos/subsys/system/explorer/res/toolbar.bmp Please use only toolbar bitmaps with 15 pixels height, not 16 ! Regards, Martin

19 years

internal compiler error

by Hartmut Birr

Hi, Does somebody see this error? - Hartmut gcc -c hal\halx86\mp\processor_mp.c -o .\up\obj-i386\hal\halx86\mp\processor_mp.o -Ihal\halx86\include -Intoskrnl\include -D_DISABLE_TIDENTSSMP -D_NTHAL_ -D__USE_W32API -I. -Iinclude -Iinclude\reactos -Iinclude\libs -Iinclude\drivers -Iinclude\subsys -Iinclude\ndk -Iw32api\includ\include\crt -Iw32api\include\ddk -D_M_IX86 -D_X86_ -D__i386__ -D_REACTOS_ -DDBG -DKDBG -Wall -Wno-strict-aliasing -ftracer -momit-leaf-fram-mpreferred-stack-boundary=2 -Wpointer-arith -g -pipe -Werror -D_SEH_NO_NATIVE_NLG hal\halx86\mp\mpconfig.c: In function `HaliScanForMPConfigTable': hal\halx86\mp\mpconfig.c:563: internal compiler error: in cfg_layout_merge_blocks, at cfgrtl.c:2631 Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://www.mingw.org/bugs.shtml> for instructions. _make: *** [.\up\obj-i386\hal\halx86\mp\mpconfig.o] Error 1 _make: *** Waiting for unfinished jobs.... gcc (GCC) 3.4.2 (mingw-special) Copyright (C) 2004 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

19 years

Screen Shot for Real Hardware Was: [ros-kernel] David Recent Video Card Support Changes

by James Tabor

Hi All! It is time to Implement Screen Shot for real hardware! Who is up to it? 8^D James Oldies but Gold'ies Filip Navara wrote: 03/08/04 20:44 > James Tabor wrote: > >> Filip Navara wrote: >> >>> I cheated, because I used virtual machine with emulated S3 card, but >>> it looks same on real HW. If you need a screenshot feature, I'll try >>> find on of my old patches that saves screenshots to files and adapt >>> it for the current CVS. >>> >>> Regards, >>> Filip >>> >> Ya! A good work around hack is good! If you can do so. >> Thank, >> James > > > Here it is. Few notes: > 1) Beware, it's hack! > 2) It's a not little hack, it's a big hack! > 3) Saves the screenshot to c:\reactos\screenshot.bmp. > 4) Press ALT-PRINTSCREEN in any usual window (not console) to take the > screenshot. > > - Filip > > > ------------------------------------------------------------------------ > > Index: drivers/video/videoprt/videoprt.c > Index: lib/user32/windows/defwnd.c > =================================================================== > RCS file: /CVS/ReactOS/reactos/lib/user32/windows/defwnd.c,v > retrieving revision 1.124 > diff -u -r1.124 defwnd.c > --- lib/user32/windows/defwnd.c 22 Feb 2004 23:40:58 -0000 1.124 > +++ lib/user32/windows/defwnd.c 8 Mar 2004 20:26:40 -0000 > @@ -949,10 +949,205 @@ > return GetSysColorBrush(COLOR_WINDOW); > } > > +/* > + * CreateBitmapInfoStructure > + * > + * Creates a bitmap info structure for saving a bitmap into a file. > + */ > + > +PBITMAPINFO FASTCALL > +CreateBitmapInfoStructure(HDC hDC, HBITMAP hBmp) > +{ > + BITMAP bmp; > + PBITMAPINFO pbmi; > + WORD cClrBits; > + > + /* Get the width, height and the colordepth of the image. */ > + if (!GetObjectW(hBmp, sizeof(BITMAP), (LPSTR)&bmp)) > + { > + return NULL; > + } > + > + /* Convert the color format to a count of bits. */ > + cClrBits = (WORD)(bmp.bmPlanes * bmp.bmBitsPixel); > + > + /* > + * Allocate memory for the BITMAPINFO-structure. This structure > + * contains a BITMAPINFOHEADER-structure and an array of RGBQUAD > + * datastructures. > + */ > + if (cClrBits <= 8) > + pbmi = (PBITMAPINFO)LocalAlloc(LPTR, sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD) * (1 << cClrBits)); > + else > + pbmi = (PBITMAPINFO)LocalAlloc(LPTR, sizeof(BITMAPINFOHEADER)); > + > + > + /* Initialize the fields in the BITMAPINFO-structure. */ > + pbmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER); > + pbmi->bmiHeader.biWidth = bmp.bmWidth; > + pbmi->bmiHeader.biHeight = bmp.bmHeight; > + pbmi->bmiHeader.biPlanes = bmp.bmPlanes; > + pbmi->bmiHeader.biBitCount = bmp.bmBitsPixel; > + > + if (cClrBits <= 8) > + pbmi->bmiHeader.biClrUsed = 1 << cClrBits; > + > + pbmi->bmiHeader.biCompression = BI_RGB; > + > + /* > + * Compute the number of bytes in the array of color indices > + * and store the result in biSizeImage. > + */ > + > + pbmi->bmiHeader.biSizeImage = (pbmi->bmiHeader.biWidth + 7) / 8 * pbmi->bmiHeader.biHeight * cClrBits; > + > + /* > + * Set biClrImportant to 0 to indicate that all of the device > + * colors are important. > + */ > + > + pbmi->bmiHeader.biClrImportant = 0; > + > + /* And finally return the info-structure. */ > + return pbmi; > +} > + > +/* > + * SaveBitmap > + * > + * Saves a bitmap to a specified file. > + */ > + > +HRESULT FASTCALL > +SaveBitmap(PWCHAR strFileName, HDC hDC, HBITMAP hBMP) > +{ > + HANDLE hf; > + BITMAPFILEHEADER hdr; > + PBITMAPINFOHEADER pbih; > + LPBYTE lpBits; > + DWORD dwTotal; > + DWORD cb; > + BYTE *hp; > + DWORD dwTmp; > + PBITMAPINFO pbi; > + > + pbi = CreateBitmapInfoStructure(hDC, hBMP); > + if (pbi == NULL) > + { > + return E_FAIL; > + } > + > + pbih = (PBITMAPINFOHEADER)pbi; > + lpBits = (LPBYTE)GlobalAlloc(GMEM_FIXED, pbih->biSizeImage); > + > + if (!lpBits) > + { > + return E_FAIL; > + } > + > + /* > + * Retrieve the colortable (RGBQUAD-array) and the bits > + * (array of palette indices) from the DIB. > + */ > + > + if (!GetDIBits(hDC, hBMP, 0, (WORD)pbih->biHeight, lpBits, pbi, DIB_RGB_COLORS)) > + { > + return E_FAIL; > + } > + > + > + /* Create the .BMP file. */ > + > + hf = CreateFileW( > + strFileName, > + GENERIC_READ | GENERIC_WRITE, > + (DWORD)0, > + NULL, > + CREATE_ALWAYS, > + FILE_ATTRIBUTE_NORMAL, > + (HANDLE)NULL); > + > + if (hf == INVALID_HANDLE_VALUE) > + { > + return E_FAIL; > + } > + > + hdr.bfType = 0x4D42; /* 0x42 = "B", 0x4D = "M" */ > + > + /* Compute the size of the entire file. */ > + hdr.bfSize = (DWORD)(sizeof(BITMAPFILEHEADER) + pbih->biSize + pbih->biClrUsed * sizeof(RGBQUAD) + pbih->biSizeImage); > + hdr.bfReserved1 = 0; > + hdr.bfReserved2 = 0; > + > + /* Compute the offset to the array of color indices. */ > + hdr.bfOffBits = ( DWORD ) sizeof( BITMAPFILEHEADER ) + pbih->biSize + pbih->biClrUsed * sizeof( RGBQUAD ); > + > + /* Copy the BITMAPFILEHEADER into the .BMP file. */ > + if (!WriteFile(hf, (LPVOID)&hdr, sizeof(BITMAPFILEHEADER), (LPDWORD)&dwTmp, NULL)) > + { > + return E_FAIL; > + } > + > + > + /* Copy the BITMAPINFOHEADER and RGBQUAD array into the file. */ > + if (!WriteFile(hf, > + (LPVOID)pbih, > + sizeof(BITMAPINFOHEADER) + pbih->biClrUsed * sizeof(RGBQUAD), > + (LPDWORD)&dwTmp, NULL)) > + { > + return E_FAIL; > + } > + > + > + /* Copy the array of color indices into the .BMP file. */ > + dwTotal = cb = pbih->biSizeImage; > + hp = lpBits; > + > + if (!WriteFile(hf, (LPSTR)hp, (int)cb, (LPDWORD)&dwTmp, NULL)) > + { > + return E_FAIL; > + } > + > + > + /* Now close the .BMP file. */ > + if (!CloseHandle(hf)) > + { > + return E_FAIL; > + } > + > + /* Free the memory reserved. */ > + GlobalFree((HGLOBAL)lpBits); > + > + return S_OK; > +} > + > VOID FASTCALL > DefWndScreenshot(HWND hWnd) > { > - > + HDC hScreenDC = GetDC(0), hDC; > + HBITMAP hBmp, hSaveBmp; > + > + DbgPrint("Screenshot\n"); > + hBmp = CreateCompatibleBitmap( > + hScreenDC, > + GetSystemMetrics(SM_CXSCREEN), > + GetSystemMetrics(SM_CYSCREEN)); > + hDC = CreateCompatibleDC(hScreenDC); > + hSaveBmp = SelectObject(hDC, hBmp); > + BitBlt( > + hDC, > + 0, > + 0, > + GetSystemMetrics(SM_CXSCREEN), > + GetSystemMetrics(SM_CYSCREEN), > + hScreenDC, > + 0, > + 0, > + SRCCOPY); > + SaveBitmap(L"c:\\reactos\\screenshot.bmp", hDC, hBmp); > + SelectObject(hDC, hSaveBmp); > + DeleteObject(hBmp); > + DeleteDC(hDC); > } > > LRESULT STDCALL > Index: subsys/win32k/objects/dib.c > =================================================================== > RCS file: /CVS/ReactOS/reactos/subsys/win32k/objects/dib.c,v > retrieving revision 1.42 > diff -u -r1.42 dib.c > --- subsys/win32k/objects/dib.c 19 Feb 2004 21:12:10 -0000 1.42 > +++ subsys/win32k/objects/dib.c 8 Mar 2004 20:27:00 -0000 > @@ -23,6 +23,7 @@ > #include <windows.h> > #include <stdlib.h> > #include <win32k/bitmaps.h> > +#include <win32k/color.h> > #include <win32k/debug.h> > #include "../eng/handle.h" > #include <ntos/minmax.h> > @@ -259,7 +260,7 @@ > } > > // Converts a device-dependent bitmap to a DIB > -#if 0 > +#if 1 > INT STDCALL NtGdiGetDIBits(HDC hDC, > HBITMAP hBitmap, > UINT StartScan, > @@ -278,7 +279,7 @@ > UINT coloruse) /* [in] RGB or palette index */ > #endif > { > -#if 0 > +#if 1 > BITMAPINFO Info; > BITMAPCOREHEADER *Core; > PBITMAPOBJ BitmapObj; > @@ -377,8 +378,7 @@ > Info.bmiHeader.biWidth == BitmapObj->bitmap.bmWidth && > Info.bmiHeader.biHeight == BitmapObj->bitmap.bmHeight && > Info.bmiHeader.biPlanes == BitmapObj->bitmap.bmPlanes && > - Info.bmiHeader.biBitCount == BitmapObj->bitmap.bmBitsPixel && > - 8 < Info.bmiHeader.biBitCount) > + Info.bmiHeader.biBitCount == BitmapObj->bitmap.bmBitsPixel) > { > Info.bmiHeader.biSizeImage = BitmapObj->bitmap.bmHeight * BitmapObj->bitmap.bmWidthBytes; > Status = MmCopyToCaller(Bits, BitmapObj->bitmap.bmBits, Info.bmiHeader.biSizeImage); > @@ -390,7 +390,7 @@ > } > RtlZeroMemory(&InfoWithBitFields, sizeof(InfoWithBitFields)); > RtlCopyMemory(&(InfoWithBitFields.Info), &Info, sizeof(BITMAPINFO)); > - if (BI_BITFIELDS == Info.bmiHeader.biCompression) > + if (Info.bmiHeader.biCompression == BI_BITFIELDS) > { > DCObj = DC_LockDc(hDC); > if (NULL == DCObj) > @@ -419,6 +419,22 @@ > BITMAPOBJ_UnlockBitmap(hBitmap); > return 0; > } > + if (Info.bmiHeader.biBitCount <= 8) > + { > + DCObj = DC_LockDc(hDC); > + if (NULL == DCObj) > + { > + SetLastWin32Error(ERROR_INVALID_HANDLE); > + BITMAPOBJ_UnlockBitmap(hBitmap); > + return 0; > + } > + NtGdiGetPaletteEntries( > + DCObj->w.hPalette, > + 0, > + 1 << Info.bmiHeader.biBitCount, > + (LPPALETTEENTRY)&UnsafeInfo->bmiColors); > + DC_UnlockDc(hDC); > + } > } > else > { > @@ -516,7 +532,7 @@ > if (bits && lines) > { > /* If the bitmap object already have a dib section that contains image data, get the bits from it */ > - if(bmp->dib && bmp->dib->dsBm.bmBitsPixel >= 15 && info->bmiHeader.biBitCount >= 15) > + if(bmp->dib) > { > /*FIXME: Only RGB dibs supported for now */ > unsigned int srcwidth = bmp->dib->dsBm.bmWidth, srcwidthb = bmp->dib->dsBm.bmWidthBytes; > @@ -702,6 +718,44 @@ > } > break; > > + case 8: /* 8 bpp dstDIB */ > + { > + switch(bmp->dib->dsBm.bmBitsPixel) { > + case 8: /* 8 bpp srcDIB -> 8 bpp dstDIB */ > + { > + /* FIXME: BI_BITFIELDS not supported yet */ > + for (y = 0; y < lines; y++, dbits+=dstwidthb, sbits+=srcwidthb) > + memcpy(dbits, sbits, srcwidthb); > + } > + break; > + > + default: /* ? bit bmp -> 8 bit DIB */ > + DPRINT1("FIXME: 8 bit DIB %d bit bitmap\n", > + bmp->bitmap.bmBitsPixel); > + break; > + } > + } > + break; > + > + case 4: /* 4 bpp dstDIB */ > + { > + switch(bmp->dib->dsBm.bmBitsPixel) { > + case 4: /* 4 bpp srcDIB -> 4 bpp dstDIB */ > + { > + /* FIXME: BI_BITFIELDS not supported yet */ > + for (y = 0; y < lines; y++, dbits+=dstwidthb, sbits+=srcwidthb) > + memcpy(dbits, sbits, srcwidthb); > + } > + break; > + > + default: /* ? bit bmp -> 4 bit DIB */ > + DPRINT1("FIXME: 4 bit DIB %d bit bitmap\n", > + bmp->bitmap.bmBitsPixel); > + break; > + } > + } > + break; > + > default: /* ? bit DIB */ > DPRINT1("FIXME: Unsupported DIB depth %d\n", info->bmiHeader.biBitCount); > break;

19 years

Re: [ros-dev] Patent on FAT

by James Tabor

Hi all, I think this is important to share to the discussion. From one of the developers with FreeDOS, Eric Auer. Thanks, James -------- Original Message -------- Subject: [Freedos-user] re: FAT and other file systems Date: Fri, 13 Jan 2006 17:16:34 +0100 (MET) From: Eric Auer <eric(a)coli.uni-sb.de> Reply-To: freedos-user(a)lists.sourceforge.net To: freedos-user(a)lists.sourceforge.net Hi James, > > And I think it is not more difficult to write HFS or FFS in the kernel > > of FreeDOS than ReiserFS or XFS or all the other candidates. I would like to comment this as follows: The Linux kernel modules for ext3+jbd take 131+59k of memory. Reiserfs takes 243k (243*1000 bytes, too lazy to convert to units of 1024 bytes). On the other hand, FAT core takes 38k and you use it with either MSDOS (8k) or VFAT (13k) implementations. Only the VFAT (long file name enabled) module of Linux is affected by the 3 MS patents mentioned on the MS homepage. > There is no way around this, unless someone will write a disclaimer, "Before > you install FreeDos, do you want to enable Fat32 Patented Features"? Microsoft WANTS you to believe that they patented FAT32. Actually they patented their clever but twisted way to store short and long filenames in the same directory, in a way which allows LFN-unaware operating systems to use the drive without getting confused by the LFN data and usually also without damaging the LFN data either. But you already point that out yourself: > We are > facing the same issue with Ros. When I use FreeDos, I use the basic 8.3 > file system, so I don't see that as a major problem. The point here is the > patent is about LFN, basic 8.3 is not effected. So the disclaimer would only be displayed when you install the DOSLFN package: "Install DOSLFN, which might have patent issues?". FreeDOS as a DOS operating system itself is not affected by that problem. Plus MS does have a disclaimer about their licensing, too: http://www.microsoft.com/whdc/hwdev/download/hardware/fatgen103.pdf which is more than 5 years old by now... allows you to be compatible to all their FAT (including LFN) stuff for the purpose of booting, OS installation, diagnosis, firmware, similar things. They also tell that making/installing operating systems may use all aspects of FAT. You could see this in a pessimist way (you are allowed to develop and compile your OS on a LFN enabled host system) or in a more optimistic way (your operating system itself is allowed to use LFN because it simply is an operating system). MS is targetting two groups at the moment: Vendors of USB sticks who preinstall files on their sticks, and vendors of cams and mp3 players and similar devices. FreeDOS is neither of those. But I did notice that my hardware mp3 player does not support LFN. It only shows the id3 text, if available, as "long song name", and is limited to showing the SHORT file name as song name otherwise. Looks like the vendor of the player did not want to pay MS for each device. Digicams have similar issues - they usually generate filenames like dsc0815 dot jpg and store all extra "title/name" information inside the file (jpeg comment, EXIF data...?). Eric PS: I assume that you mean ReactOS, the free open WinNT clone, when you mention Ros. ReactOS without LFN would not be the same... ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click _______________________________________________ Freedos-user mailing list Freedos-user(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user

19 years

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