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5790 discussions

Page protection ldr change breaks VMware SVGA driver
by Ge van Geldorp 29 Sep '04

29 Sep '04

> From: Hartmut Birr > > Log message: > - Rewrote (copied from ntdll) parts of the relocation > and import fixup code. > - Don't load no-load sections at the end of the driver. > - Don't relocate the relocation section itself. > - Set the correct page protection for section which are > executable. With current CVS, the VMware SVGA driver crashes. It happens in a HwFindAdapter() call. While tracing through the driver, I got this eery "I've been here before" feeling. And sure enough, I fixed this same crash about a year and a half ago. The problem is that vmx_svga.sys has a section alignment of 0x20 instead of the normal 0x1000. So, sections are much smaller than the page size. When setting the page protections you need to take into account all the sections which might be mapped to that page. This was implemented in ntoskrnl/ldr/loader.c rev 1.126. Gé van Geldorp.

3 6

ASSERT_IRQL and unrelated mm/mdl.c
by art yerkes 29 Sep '04

29 Sep '04

I started putting in ASSERT_IRQL in ntoskrnl, hoping that only my own code would break from it. The results are ... interesting. I've put a metabug (426) on bugzilla which is about reactos not honoring documented irql requirements. I fixed a place in win32k.sys, but there are probably more. I think we should clean these up and get the assert_irqls into HEAD, so that people like me won't get bitten over and over by assuming we're in one irql when we're in another. Unrelated, please take a look at the following patch, anyone who's cozy with the mm. The reason why this code is needed is that MmNotPresentFault and MmAccessFault will try to lock the address space as well as MmProbeAndLockPages. Since this is a spin lock, reactos will always bugcheck when MmProbeAndLockPages faults in a page, even if that would be legal otherwise. I'm not sure if this patch fixes it right but it does seem to work this way. If i don't hear too many complaints i'll think about committing something similar. There are a couple of other places where MmNotPresentFault is called (section.c) within a MmLockAddressSpace. Another idea would be to give MmNotPresentFault and MmAccessFault an extra argument so they can ignore locking if the address space is already locked. -- Hey, Adam Smith, keep your invisible hands to yourself!

3 4

ReactOS and Cygwin
by WaxDragon 29 Sep '04

29 Sep '04

Hello! I thought I would try running Cygwin on a ReactOS CVS build, and after talking with some of you on IRC, I went ahead. After setting PATH=c:\cygwin\bin;%PATH%, dd.exe, uniq.exe, bash.exe, and ls.exe all drop ros to the kernel debugger with an exception 14. This is on the now dead Command Prompt: 41 [Main] ? 10 cygheap_user::init: SetTokenInformation (TokenDefaultDacl): Win32 error 1 Here is the debug output leading up to the exection of uniq.exe: (objects/gdiobj.c:401) Can't delete hObj:0x00042d77, type:0x007f0000, flag:0 (objects/gdiobj.c:401) Can't delete hObj:0x00042f72, type:0x007f0000, flag:0 (ntuser/desktop.c:808) RtlQueryRegistryValues failed for PaintDesktopVersion: status=c0000005 (NTDLL:ldr/utils.c:2060) Relocating (10000000 -> 631000) C:\cygwin\bin\cygiconv-2.dll (NTDLL:ldr/utils.c:2060) Relocating (77f00000 -> 941000) C:\ReactOS\system32\KERNEL32.dll (NTDLL:ldr/utils.c:2060) Relocating (77dc0000 -> 9ba000) C:\ReactO(NTDLL:ldr/utils.c:2060) Relocating (61000000 -> 9d0000) C:\cygwin\bin\cygwin1.dll S\system32\advapi32.dll (sec/misc.c:489) GetUserNameA: stub Entered debugger on exception number 14. Entered kernel debugger (type "help" for a list of commands) kdb:> bt Frames: <ntoskrnl.exe: e326c (ob/security.c:311 (NtSetSecurityObject))> <ntoskrnl.exe: 3e5b (:148 (KeUserModeCallback))> <ntdll.dll: 3379 (napi.c:404 (NtSetSecurityObject))> All of the above commands result in the "GetUserNameA: stub" error and the message on the command prompt. Andy -- The cheese stands alone.

1 0

RE: [ros-dev] RE: [ros-kernel] BootCD doesn't boot...
by Richard Campbell 28 Sep '04

28 Sep '04

(io/arcname.c:375) Booting from CD-ROM! (io/arcname.c:319) Could not find ntoskrnl.exe IoCreateSystemRootLink FAILED: (0xc0000001) - %KERNEL-WRN-UNSUCCESSFUL UNSUCCESSFUL KeBugCheck at ke/main.c:687 Bug detected (code 7b param 0 0 0 0) INACCESSIBLE_BOOT_DEVICE Frames: <ntoskrnl.exe: a859> <ntoskrnl.exe: a879> <C0082E12> <ntoskrnl.exe: c0a9> <C0083681> <ntoskrnl.exe: 115c> this is using the livecd, haven't figured out how to mod the bootcd to display that output.

4 7

RE: [ros-kernel] BootCD doesn't boot...
by Hartmut Birr 28 Sep '04

28 Sep '04

Hi, can you disable line #32 (#define NDEBUG)in ntoskrnl\io\arcname.c and try it again? - Hartmut > -----Original Message----- > From: ros-kernel-bounces(a)reactos.com > [mailto:ros-kernel-bounces@reactos.com] On Behalf Of Richard Campbell > Sent: Tuesday, September 28, 2004 7:34 PM > To: ros-kernel(a)reactos.com > Subject: [ros-kernel] BootCD doesn't boot... > > > Hello all > > I'm using a fresh CVS checkout and ROS fails to boot in > either VMWare or > QEMU via the iso built by mingw32-make bootcd. > > Attached is a screen. >

3 4

(no subject)
by Pattersonmpt＠aol.com 28 Sep '04

28 Sep '04

Hi! I e-mailed Brian Palmer, he said it comes down to what I want to do (I asked him if I could help with ReactOS. Anything need done? my email address is either pattersonmpt(a)aol.com or xtreme101(a)btinternet.com Darren,

1 0

userenv license: ekohl, chorns, weiden, kjk
by Steven Edwards 28 Sep '04

28 Sep '04

Hello, The Wine guys are interested in our implementation of userenv.dll. I know you guys dont normally care about releasing the libs as LGPL but I want to check with the four of you before I change the license header(s) and merge attempt to get a patch ready for Winehq. Is this cool with the four of you? Thanks Steven __________________________________ Do you Yahoo!? Take Yahoo! Mail with you! Get it on your mobile phone. http://mobile.yahoo.com/maildemo

2 1

Problem looking up mangled names
by Steven Edwards 27 Sep '04

27 Sep '04

Hello, I have been trying to test Firefox and OpenOffice under ReactOS and it seems to be having trouble looking up mangled names in msvcrt. Firefox fails like this (NTDLL:ldr/utils.c:1205) LdrGetExportByName(): failed to find ??3@YAXPAX@Z and OpenOffice fails to find this name ??1type_info@@UAE@XZ Both of them are implemented and point to code I imported from Wine a long time ago. Anyone have any idea whats up? Thanks Steven __________________________________ Do you Yahoo!? Yahoo! Mail - You care about security. So do we. http://promotions.yahoo.com/new_mail

6 8

VMware driver regression
by Steven Edwards 27 Sep '04

27 Sep '04

Also it seems that using the VMware driver has regressed vs current CVS. DriverBase for \SystemRoot\system32\drivers\vmx_svga.sys: dccfa000 DriverBase for \SystemRoot\system32\drivers\VIDEOPRT.SYS: dcd1a000 KeBugCheckWithTf at ke/catch.c:164 Bug detected (code 1e param 0 0 0 0) KMODE_EXCEPTION_NOT_HANDLED Page Fault Exception: 14(3) Processor: 0 CS:EIP 8:dccfc451 <vmx_svga.sys: 2451> cr2 dccfcc60 cr3 2a4000 Proc: c03ea010 Pid: 1 <SYSTEM> Thrd: c03ead58 Tid: 1 DS 10 ES 10 FS 30 GS 10 EAX: 00000000 EBX: c0454334 ECX: 00000000 EDX: 00000000 EBP: c00aea08 ESI: dccfa4d0 ESP: c00ae8c8 EDI: 0000000b EFLAGS: 00210246 kESP c00ae8c8 kernel stack base c00ac000 Frames: <vmx_svga.sys: 1c0f> <VIDEOPRT.SYS: 2213> <VIDEOPRT.SYS: 10a5> <ntoskrnl.exe: 2c093> <ntoskrnl.exe: 34cef> <ntoskrnl.exe: 34d5e> <ntoskrnl.exe: 343c1> <ntoskrnl.exe: 343f7> <ntoskrnl.exe: 343f7> <ntoskrnl.exe: 3443d> <ntoskrnl.exe: 34dc4> <C0082A0B> _______________________________ Do you Yahoo!? Declare Yourself - Register online to vote today! http://vote.yahoo.com

1 0

Const Error
by James Tabor 26 Sep '04

26 Sep '04

Hi! i386-mingw32-gcc -D_WIN32_IE=0x0600 -D_WIN32_WINNT=0x0501 -I./include -DUNICODE -D_UNICODE -D__REACTOS__ -D__USE_W32API -D_HIDPI_ -D_HIDPI_NO_FUNCTION_MACROS_ -Wall -Werror -fno-builtin -I. -I../../include -I../../w32api/include -pipe -march=i486 -D_M_IX86 -g -c hid.c -o hid.o hid.c: In function `HidD_Hello': hid.c:374: warning: duplicate `const' make: *** [hid.o] Error 1 const PCHAR const HelloString = "Hello\n"; ^ | is that right? I'm back online! James

3 2

Memory Manager problem
by Ge van Geldorp 26 Sep '04

26 Sep '04

Attached is a test program that demonstrates a problem with memory mapped files. Basically, if you try to MapViewOfFile() a part of the file at non-zero file offset, ReactOS will still map the beginning of the file. I think I found the cause of this, the attached .diff fixes it. My fix uncovered another (small) problem, ViewOffset is relative to the start of the segment, not the start of the section. So instead of passing SectionSegments[i].VirtualAddress we need to pass 0. I'd appreciate it if someone who actually understands the Mm stuff can take a look at this. Gé van Geldorp.

1 0

Re: Ros-kernel Digest, Vol 12, Issue 36
by Lucio Diaz 26 Sep '04

26 Sep '04

99% of the windows users consider networking as browsing internet. Give suport for TCP/IP , for a basic browser (wish it were graphical, and most common ethernet cards (kind of realtek or others widely used) and you can say. ¡We have networking!. An extra would be suport for some widely used modems. Noone expect apache or emule working in an alpha OS, even FTP is prescindible in 0.3. Regards, Lucio Diaz. ______________________________________________ Renovamos el Correo Yahoo!: ¡100 MB GRATIS! Nuevos servicios, más seguridad http://correo.yahoo.es

4 3

Re: [ros-cvs] CVS Update: reactos
by eric.kohl＠t-online.de 26 Sep '04

26 Sep '04

"Hartmut Birr" <hbirr(a)cvs.reactos.com> wrote: > CVSROOT: /CVS/ReactOS > Module name: reactos > Repository: reactos/drivers/storage/atapi/ > Changes by: hbirr(a)mok.osexperts.com 04/09/26 02:14:21 > > Modified files: > reactos/drivers/storage/atapi/: atapi.c > > Log message: > - Reselected the drive (master/slave) after a soft reset. This fixes the bug on my machine. All drives are detected. Regards, Eric

1 0

Welcome to ros-dev!
by Jason Filby 26 Sep '04

26 Sep '04

Hi all Ros-dev is now functional. Please refrain from posting to ros-kernel and use this new list instead - I've moved all subscriptions over to this list. Ros-kernel will be discontinued in a few days. Cheers Jason

1 0

(no subject)
by Hanken 26 Sep '04

26 Sep '04

1 0

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