Windows error 0x80000007, -2147483641

papi_avail: No events available

I want to get into PAPI. I have Version 5.3.2.0 on Debian GNU/Linux. papi_avail just tells me that no hardware events are available: $ papi_avail Available events and hardware information. -------------------------------------------------------------------------------- PAPI Version : 5.3.2.0 Vendor string and code : GenuineIntel (1) Model string and code : Intel(R) Core(TM) i3-5010U [...] read more

zlib from C++ to C#(How to convert byte[] to stream and stream to byte[])

My task is to decompress a packet(received) using zlib and then use an algoritm to make a picture from the data The good news is that I have the code in C++,but the task is to do it in C# C++ //Read the first values of the packet received DWORD [...] read more

Diagnosing an app that fails to halt

Our Windows app is often hanging in memory and I'm trying to use windbg to track down the problem. I'm very new to windbg and could use some advice (I have started to read Advanced Windows Debugging though). The app is a mix of C++ and COM objects written in [...] read more

How to send an SMS from Debian command line?

I have a 4G wwan modem (Fibocom L850GL) with a valid SIM card on a Debian PC. I have modem-manager-gui and I can send SMS with it. modem manager gui help send SMS from linux with a GUI [https://i.stack.imgur.com/Rgfy6.png] How can I do the same from the command line? I [...] read more

Android Mediarecorder setNextOutputFile IllegalStateException

I am trying to split my audio recording with android mediarecorder into multiple files, but whenever I set the next output file, I got an illegalstate exception. Here's the code: private void getMediaRecorderReady(String filePath, FileDescriptor nextFile) { bufferSize = 88200; recorder = new MediaRecorder(); recorder.setAudioSource(MediaRecorder.AudioSource.MIC); recorder.setOutputFormat(MediaRecorder.OutputFormat.AAC_ADTS); recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC); recorder.setAudioEncodingBitRate(64000); recorder.setAudioSamplingRate(44100); recorder.setAudioChannels(1); [...] read more

Using grub in floppy image file to start your own kernel inside bochs

Basically I've followed the instructions here http://sig9.com/bochs-grub to create a bare image file which does nothing but lets the BIOS start GRUB. The problems are: * The kernel I am writing will be 32-bit, using http://www.jamesmolloy.co.uk/tutorial_html/index.html for a start, but my host (physical) machine is x86_64 with bochs configured like [...] read more

Second stage bootLoader not loading in bochs, LINUX (ubuntu 16.04), Brokenthorn osdev series

I am following brokenthorn OS development series, until now I am able sucessfully run bootloader stage1 but there is some issue with loading second stage bootloader from FAT12 floppy in bochs emulator on linux machine(ubuntu 16.04) (It works fine in virtual box though). Here is my stage1 boot loader: bits [...] read more

Why is paging not working and getting physical address not available error on Bochs

I have the following assembly code to set up paging for long mode. org 0x7e00 bits 32 mov eax, 0x08000008 mov cr3, eax pml4t: mov dword [0x8000], 0x0900000f mov dword [0x8004], 0x0 pdpt: mov dword [0x9000], 0x0a00000f mov dword [0x9004], 0x0 pdt: mov dword [0xa000], 0x0b00000f mov dword [0xa004], 0x0 [...] read more

Android Things firmware flash on intel edison fails from windows 10 system

I have followed all the steps as given in the google android things page. I am using the latest Intel Platform Flash tool 5.8.3 v for windows. When i try to flash the FlashEdison.json image it runs upto 50% and then fails. my desktop config: Windows 10 Pro - 64 [...] read more

Total Cache misses fewer than data cache misses (PAPI_L1_DCM > PAPI_L1_TCM)

For my application (SpMV) I have more data cache misses (PAPI_L1_DCM) than total cache misses (PAPI_L1_TCM) in level 1 cache. How can that be? For Level 2 the values are ok. That is, what the PAPI counters offer: [PAPI_L1_ICM ][PAPI_L1_DCM ][PAPI_L1_TCM ][PAPI_L2_ICM ][PAPI_L2_DCM ][PAPI_L2_TCM ] 1256 3388225 1442386 1007 2389903 [...] read more

Bootloader crash

I'm currently developing my bootloader, but I have problem. I use Bochs to test bootloader, I compile bootloader and make disk image with: rm disk.bin rm boot.bin rm post.bin nasm bootloader.asm -o boot.bin nasm postmbr.asm -o post.bin cat boot.bin post.bin > disk.bin This is bootloader.asm: [BITS 16] ;Tells the assembler [...] read more

Why does Bochs crash on simple mov instruction

I'm building a small operating system and was using Qemu before which was working properly. Now I'm stuck on a Windows 10 machine and Qemu doesn't work well with GDB on this machine. I thought I'd try Bochs or Virtual box instead. The problem is that with both of these [...] read more

Win dbg Dump OOM exception in IIS

Occasionally, we get an OutOfMemoryException in one of our IIS processes. I tried to analyze the dump but wasn't able to reach concrete conclusions. I also tried looking into MS hotfixes, found similar problems and resolutions, but not sure if its related or not: link Below is the output of [...] read more

Only 14 RAPI events are available on Xeon Phi. Why so few?

I'm trying to use RAPI to monitor the performance of my Xeon Phi code. I just compiled and installed a native version of RAPI follwoing the documentation. And the following list is what I get when I execute "rapi_avail" on my Xeon Phi which shall display all available events. Surprisingly, [...] read more

android - error using multiple instance of VideoView

I want an activity that show two (or more) videoview in a linear layout. Using videoview with local files as datasource all works fine, but using video by stream rtsp I have a Mediaplayer error code like (1,1), usually the first video show correctly and second show error. I try [...] read more

Unable to call COM DLLs from C#

I am trying to call C++ and C# DLLs using COM from a C#(4.0) service. The DLLs have be registered on the same server (win2003) and are currently being called from a C++ service using COM without issue (over 100k times). The DLLs expose an interface "ExecuteTransaction" which takes two [...] read more

PHP SMPP delivery report deliver_sm_resp not receiving?

<?php /* File : smppclass.php Implements : SMPPClass() Description : This class can send messages via the SMPP protocol. Also supports unicode and multi-part messages. License : GNU Lesser Genercal Public License: http://www.gnu.org/licenses/lgpl.html Commercial advertisement: Contact info@chimit.nl for SMS connectivity and more elaborate SMPP libraries in PHP and other languages. [...] read more

papi_avail shows event's, can't access in C

I'm trying to run PAPI on an Odroid-XU4, I've installed PAPI and when I run papi_avail -a I can see 16 events available. I've set perf_event_paranoidto -1. When I try to call PAPI using C, it always says: > Event doesn't exist even though I know the hardware has 16 [...] read more

CryptoJS is not defined at

I am trying to use DES encryption/decryption on Google chrome. In my folder I have three files. 1. tripledes.js 2. mode-ecb.js 3. CryptoJS-DES.html The scripts in my html file is defined as follows :- <script type="text/javascript" src="tripledes.js"></script> <script type="text/javascript" src="mode-ecb.js"></script> and another script file which is :- function encryptByDES(message, key) [...] read more

Visual Studio 2015 cross platform c++ hangs after build in vslog!VSResponsiveness::Detours

I have a Visual Studio 2015 Professional Update 2 crossplatform c++ solution with shared, android and ios projects. It looks like the projects build successfully, but then Visual Studio hangs. I am unable to cancel the build or restart visual studio. I have to kill the devenv process, then open [...] read more

debugging - random error when running the application

Sometimes I run my application, it will show [not responding] and be forced to close. I captured a Dump file and open it in WinDbg. Below is the information I get: Loading unloaded module list . This dump file has an exception of interest stored in it. The stored exception [...] read more

In Windows, what is the meaning of a crash with exception code equal to STATUS_WAKE_SYSTEM_DEBUGGER 0x80000007?

I have a crashdump created by DrWatson, the exception code is 0x80000007 STATUS_WAKE_SYSTEM_DEBUGGER and the message is "{Kernel Debugger Awakened} The system debugger was awakened by an interrupt." (from here: 2.3.1 NTSTATUS values http://msdn.microsoft.com/en-us/library/cc704588(v=prot.10).aspx ) I cannot find any documentation about it. What is its meaning? read more

How to reverse that function

I've asked before about the opposite of Bitwise AND(&) and you told me its impossible to reverse. Well,this is the situation: The server sends an image,which is encoded with the function I want to reverse,then it is encoded with zlib. This is how I get the image from the server: [...] read more