Windows error 0x00000028, 40

is a jpeg with a bogus huffman table recoverable?

I have a JPEG that is un-openable in any program: Opening in Ubuntu Image Viewer yields: could not load image. bogus huffman table definition [https://i.stack.imgur.com/goymc.png] Passing the photo through convert yields similar results: $ convert corrupt.jpg out.jpg convert.im6: Bogus Huffman table definition `corrupt.jpg' @ error/jpeg.c/JPEGErrorHandler/316. convert.im6: no images defined `out.jpg' [...] read more

iOS UIWebView crashes randomly on WebCore::FrameTree::top

I have an iOS app that randomly seems to crash on a screen that has a UIWebView. It looks like the crash happens mostly on iPhone 5C devices (74% of the time) and 100% of the time on iOS 10.X. The exception message is: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at [...] read more

Debug a crashing IE11

I have some Javascript code which makes IE11 to crash. How can I find out the offending code? (function name, line number, stack trace, whatever) The only option I see is > debug with VS2015 but this goes to far telling me the hex offset in the DLL (mshtml.dll) where [...] read more

"Anomaly" in signed integer in C

I'm currently writing a lecture on ARM optimization, specifically on vector machines such as NEON as the final target. And since vector machines don't fare well with if-else slaloms, I'm trying to demonstrate how to get rid of them by bit-hacking. I picked the "saturating absolute" function as an example [...] read more

Occasionally ios MKMapView Crashes when going to other screen and comeback to MapScreen

In my IOS App I declared Map contained view controller as a shared instance. Exception Type: EXC_BAD_ACCESS (SIG SEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x00000028 Crashed Thread: 0 Thread 0 name: Dispatch queue: com.apple.main-thread Thread 0 Crashed: 0 VectorKit 0x37058b86 __64-[VKMapCanvas animateToMapRegion:pitch:yaw:duration:completion:]_block_invoke_0168 + 50 1 VectorKit 0x37003bee -[VKAnimation _stopAnimation:] + 38 [...] read more

watchOS2 Notification Simulator

I encountered a strange bug from simulator of watchOS2 on XCode. I handled a notification using UILocalNotification and modified storyboard of static notification. But when I check a value "Wants Sash Blur" and build, It makes an error related with "Carousel.app"(like an unexpectedly stopped.) However, When I turn off that [...] read more

How to stop GNU GCC from mangling dll import function names

GNU GCC is mangling my imported function names even though I'm using extern "C" in the declarations. I just started using Code::Blocks and GNU GCC for migrating existing projects off of Borland C++ Builder 6.0 Pro and developing some future projects. Long term, I will 1) be making .dlls that [...] read more

xorriso: boot.catalog and -eltorito-catalog not working

I've been trying to create a bootable CD with xorriso by using a custom boot.catalog file in order to - that was my goal - specify the LBA my boot sector should be placed at. However, the xorriso option -eltorito-catalog does not seem to use my custom boot.catalog, instead, it [...] read more

Difference between OUTPUT_ARCH(arm) and OUTPUT_ARCH(armv4) in linker script

Among other things I am trying to understand the difference between OUTPUT_ARCH(arm) and OUTPUT_ARCH(armv4). Assume we have next files (I have used linker script example from here as a basis): main.c: int main(void) { test_1(); test_2(); return 0; } main.lds: OUTPUT_ARCH(arm) SECTIONS { . = 0x10000; .text : { *(.text) [...] read more

Stream from IP Camera very jittery on VLC

This question is a prologue to the one I previously asked here. I'm working on an IP camera project that is based on TI OMAP-L138. All in all, the H264 encoded video is streamed via live555 libraries over RTSP. For Live555 I'm using deviceSource based framed source. However, when I [...] read more

Change display format of DirectX "Object Table"

While debugging with VS 2012 Graphic's Debugger, I want to look at an index buffer, but the format that is showing it in is as float. This means the numbers are different than they would be with an int or short format. Does somebody know how to change this? Here [...] read more

Connecting with SSH.NET to OpenSSH 7.4p1 fails with "The server response contains a null character at position" but works in WinSCP

I am trying to connect to an SFTP server using SSH.NET (2020.0.0). My code looks as simple as this: try { var x = new ConnectionInfo(FtpIpAddress, 22, FtpUser, new PasswordAuthenticationMethod(FtpUser, FtpPw)); using (var sftpClient = new SftpClient(x)) { sftpClient.Connect(); sftpClient.Disconnect(); } } catch (Exception e) { Console.WriteLine(e.Message); } But when [...] read more

Understand assembly code in a C function on x86

Let's say I have a C function: char* func(char* cp1, int i1, char* cp2, int* ip1); Questions: 1. the address cp1 pointing is passed in in RDI, value of i1 in RSI, address cp2 pointing in RDX, and address of ip1 in RCX? 2. if it is true that RDX [...] read more

Disable .rodata indirection for local constants

When i have local data defined inside a function, it gets placed into .rodata section. This means that .text section will contain relative reference (//1) to an absolute address (//2) inside the .text, which in turn points to the data (//3) inside .rodata. int function() { int a[] = {97, [...] read more

D3 function crashes IE11

I'm using a D3 function to draw some text on screen I narrowed down the problem to this function: .append("text") when I call that function many times, IE11 crashes with: > Unhandled exception at 0x62E06A9C (mshtml.dll) in iexplore.exe: 0xC0000005: > Access violation reading location 0x00000028. offending function is: CSVGTextElement::GetBoundingRectImpl here [...] read more

display multiple images in single window OPENCV

I found this code on the internet, and it seems it works fine with others. But I always get something like this: Unhandled exception at 0x012c1073 in examplexx.exe: 0xC0000005: Access violation reading location 0x00000028. Have anybody idea what might be a problem? #include <opencv2/imgproc/imgproc.hpp> #include <opencv2/core/core.hpp> #include <opencv2/highgui/highgui.hpp> #include <iostream> [...] read more

mspgcc-size ROM/RAM usage in percentage

With mspgcc-size I can get an output like this: text data bss dec hex 13072 236 65296 78604 1330c We know that: Flash = data + text RAM = data + bss How can I extract the size of ROM/RAM from the selected -mmcu=msp430g2553 with the toolchain? e.g. ROM: 8192 [...] read more

Hyper-V Core Server 2019 ignoring power plan thresholds

I am attempting to tweak Hyper-V Core Server 2019 (host) power thresholds, however my attempts have failed so far. Scenario The newly created Hyper-V 2019 Server (part of Workgroup, not yet a Domain) has been attached to an external UPS. Battery status is provided through a USB cable. The UPS [...] read more

Disassemble instruction set for 8051 microcontroller

I have the following hex opcode sequence for a 8051 microcontroller 785679107A247BFD7C347D407E51745568F869F96AFA6BFB6CFC6DFD6EFE I found this repo that converts hex to instruction sequences https://github.com/anarcheuz/8051-disassembler. Using that I was able to get the following assembly instructions x00000000: 37 38 MOV 38 (R0,#immed) 0x00000002: 35 ANL A,@R0 0x00000004: 37 39 MOV 39 (R1,#immed) [...] read more

Android Application crashing on Lg G2 but not on other phones

So, I have an aplication that executes asynk task and on post execute it generates a listview. After the json is recieved the app crashes on a LG G2 but not on other phones. My Log cat is giving this report: 10-09 13:45:47.066: E/Entity Response :(16241): [{"id":"440","name":"Amici's East Coast Pizzeria","address":"226 [...] read more

Assembly Code mapping with source code

I am trying to map source code to object code. I am creating new constructs, building these constructs in Code Composer for Different code Optimization levels and comparing them with the source code. The issue I am facing is, when the DSP generated the assembly code, it has inserted a [...] read more

Incorrect wav header generated by sox

I'm was using sox to convert a 2 channels,48000Hz,24bits wav file(new.wav) to a mono wav file(post.wav). Here are the related commands and outputs: [Farmer@Ubuntu recording]$ soxi new.wav Input File : 'new.wav' Channels : 2 Sample Rate : 48000 Precision : 24-bit Duration : 00:00:01.52 = 72901 samples ~ 113.908 CDDA [...] read more

C - Get File Bytes as Unsigned Int

I need the bytes of a BIN file converted to a unsigned int, in this format (JavaScript): p.write4(shellcode.add32(0x00000000), 0x00000be9); p.write4(shellcode.add32(0x00000004), 0x90909000); p.write4(shellcode.add32(0x00000008), 0x90909090); p.write4(shellcode.add32(0x0000000c), 0x90909090); p.write4(shellcode.add32(0x00000010), 0x0082b955); p.write4(shellcode.add32(0x00000014), 0x8948c000); p.write4(shellcode.add32(0x00000018), 0x415741e5); p.write4(shellcode.add32(0x0000001c), 0x41554156); p.write4(shellcode.add32(0x00000020), 0x83485354); p.write4(shellcode.add32(0x00000024), 0x320f18ec); p.write4(shellcode.add32(0x00000028), 0x89d58949); p.write4(shellcode.add32(0x0000002c), 0x64b948c0); p.write4(shellcode.add32(0x00000030), 0x77737069); p.write4(shellcode.add32(0x00000034), 0x49000000); p.write4(shellcode.add32(0x00000038), 0x4120e5c1); p.write4(shellcode.add32(0x0000003c), 0x000200bc); p.write4(shellcode.add32(0x00000040), [...] read more

Python C API: WindowsError after creating some number of PyObjects

I've been having an issue getting the Python C API to not give me errors. Background: I've been using ctypes to run native code (C++) for a while, but until now I had never actually done anything specific with the Python C API. I had mostly just been passing in [...] read more

Python callback invocation from C++ fails on native site

I have a shared library (DLL) in C++ with some C-style API which I use from Python. There is a function which takes a C callback as an argument. As far as I understood, Python extension module (a separate DLL) is required to do that. This module shall pass a [...] read more

C++ "Unable to read memory" when accessing pointer object from inherited class

I have this error: Exception thrown at 0x0108C6E9 in myprojectname.exe: 0xC0000005: Access violation reading location 0x00000028. However, this only happens when I call a function from the base class via the derived class. derived class: #pragma once #include "Player.h" class Space; class Enemy : public Player{ public: void init(Space * [...] read more

uPP Device Driver is dropping data from buffer

I have written code for a uPP device driver to be used with an OMAPL138 based custom board for data acquisition through a camera lens. The code for my device driver is: /* * A device driver for the Texas Instruments * Universal Paralllel Port (UPP) * * Modified by: [...] read more

Gtkmm Gdk::Pixbuf::create_from_file() crashes

I'm trying to load a Pixbuf from a file but Gdk::Pixbuf::create_from_file() crashes. Here is my code : try { Glib::RefPtr<Gdk::Pixbuf> pix = Gdk::Pixbuf::create_from_file("a.png"); } catch(...) { /* never reached */ } > Unhandled exception at 0x65343566 (libgdk_pixbuf-2.0-0.dll) in myprog.exe: > 0xC0000005: Access violation writing location 0x00000028. I also tried to [...] read more

Application crashes very rarely with UI update on secondary thread

It is really very strange for me as my app is working fine at debug mode & when tried by tester with release build RARELY it gives crash. What I have understood from console log & crash log is that somewhere UI is trying to update from secondary thread but [...] read more

How to get returned values from C# to Java using JNI

I need to get the value returned by the method inside C# to a variable inside java class so I used JNI. It worked well for just calling a method inside C# but it is not working while I modify the same method and those corresponding calls to pass a [...] read more

Dell desktop falls asleep in a couple minutes, ignores power/screen saver settings

My parents' Dell Inspiron tower goes to sleep within ~3 minutes of inactivity, despite every power setting in Windows (screen saver, turn off screen, go to sleep, turn off hard-disk, etc.) either turned off or set to 60 minutes. This answer claims that Dell has been known to bundle their [...] read more

Recieved BSOD after restart

When i start my laptop i get this error "DPC_WATCHDOG_VIOLATION" i really donyt know what is the issue... can some one help.... -------------------------------------------------------------------------------- DUMP FILE Microsoft (R) Windows Debugger Version 6.3.9600.17336 AMD64 Copyright (c) Microsoft Corporation. All rights reserved. Loading Dump File [I:\121115-55411-01.dmp] Mini Kernel Dump File: Only registers and [...] read more

Issue in java hot spot when more than user request for services

I am working with jboss AS6 also developed some services using jbossws, when multiple user request for services , i am getting error as follows A fatal error has been detected by the Java Runtime Environment How to detect root and cause of this error , is that with kind [...] read more

workqueue hung during process blk_mq_run_work_fn

workqueue hung on my board(ARM-Linux).At the beginning, board can be connected with ssh.then, connection is ok, but it cannot enter prompt.and I catch some information with sysrq, sysrq info(partial) like this: kworker/0:2H R running task 0 19783 2 0x00000028 Workqueue: kblockd blk_mq_run_work_fn Call trace: __switch_to+0xf4/0x120 __schedule+0x248/0x460 preempt_schedule_common+0x24/0x4c preempt_schedule+0x28/0x30 _raw_spin_unlock_irqrestore+0x30/0x4c __wake_up_common_lock+0x88/0xc4 [...] read more

According to the standard PCI bus scan but the result is abnormal

This is scanning code uint32_t pci_read_configd(uint8_t bus, uint8_t dev, uint8_t func, uint8_t offset) { uint32_t address; uint32_t lbus = (uint32_t)bus; uint32_t ldev = (uint32_t)dev; uint32_t lfunc = (uint32_t)func; address = (uint32_t)((lbus << 16) | (ldev << 11) | (lfunc << 8) | (offset & 0xfc) | ((uint32_t)1 << 31)); out_port32(0xcf8, [...] read more

IBM-MQ PCF using to get subscriber count with a particular Topic

I'm using IBM-MQ, and I want to get the number of subscribers for a specific topic using PCFMessage MQQueueManager qmgr = null; PCFMessageAgent agent = null; Hashtable<String, Object> hashtable = new Hashtable<String,Object>(); hashtable.put(MQConstants.HOST_NAME_PROPERTY,"HOST NAME"); hashtable.put(MQConstants.PORT_PROPERTY,1414); hashtable.put(MQConstants.CHANNEL_PROPERTY,"CHANNEL NAME"); hashtable.put(MQConstants.USER_ID_PROPERTY, "USER_ID"); hashtable.put(MQConstants.PASSWORD_PROPERTY, "PASSWORD"); agent = new PCFMessageAgent(qmgr); PCFMessage request = new PCFMessage(MQConstants.MQCMD_INQUIRE_TOPIC_STATUS); [...] read more

i have problem when run c# and c++ program

i have source code like this one namespace TrialCheck { class Program { static void Main(string[] args) { string[] urls = new string[] { "http://localhost:9900" }; if (File.Exists("urls.txt")) urls = File.ReadAllLines("urls.txt"); var webHost = new WebHostBuilder() .UseKestrel() .UseUrls(urls) .UseStartup<Program>() .Build(); webHost.Run(); } public void ConfigureServices(IServiceCollection services) { services.AddMvc(); } public [...] read more

Is there any way to use pyswip and Flask?

I have an python application whose interface is implemented in Flask and i have a module in backend that use pyswip library. The module works perfectly when i run it separately from the application. As i searched, it seems that pyswip is not thread safe. I get this error on [...] read more

MIPS Exception 6 [Bad instruction address] for Newton's Method of finding Square Roots

I'm trying to implement Newton's Method for calculating integer square roots of a given k ($a0 here). I get the correct output but it is followed by an infinite series of Exception 6 errors like the following: sqrt(32) = 5 sqrt(33) = 5 sqrt(34) = 5 sqrt(35) = 6 sqrt(36) [...] read more

How to solve gfortran compilation and linking error?

I have trying to compile a collection of old fortran and C codes with gfortran. They compile fine on a linux workstation but this fails in a Mac. Any idea on how to solve this ? The Makefile in the Linux version has one extra flag in CFLAGS and FFLAGS [...] read more

How to implement poll function into Linux kernel module?

I'm trying to implement polling functionality into my simple Linux kernel module called gpio_driver for my Raspberry Pi which should notify the user space poll function about the change of state of one of the GPIO pins (button push). What I did in my gpio_driver is set the internal pull [...] read more

pyglet Player.seek() causes unexpected results

I am trying to create a video player using the Pyglet for Python 3.4. The current code I have is very basic, and will simply play a file such as this math gif. I want to loop the video until the window is closed, however trying to use player.seek() with [...] read more

When I open a scene my Unity crashes. How do I fix this?

Error logs. Unity is not running. > Unity.exe caused an Access Violation (0xc0000005) in module Unity.exe at > 0033:41ac1fd9. Full log: Unity Editor [version: Unity 2017.2.3p1_b4bae9093154] Unity.exe caused an Access Violation (0xc0000005) in module Unity.exe at 0033:41ac1fd9. Error occurred at 2018-06-12_191314. C:\Program Files\Unity\Editor\Unity.exe, run by Hemal Dedhia. 23% memory in [...] read more

Reading BPF Assembly

I'm trying to read some BPF syntax for a filter to try and figure out what it does. One thing I cannot find is where the "byte offset starts". Meaning, that if we have the following assembler code: 0000: 0x28 0x00 0x00 0x00000004 ldh $data[4] 0001: 0x15 0x00 0x61 0x00000028 [...] read more

GDB ARM assembler directives are compiled in a way I don't understand

I have ARM assembly source code: .global _start .text entry: b _start array: .byte 10, 20, 25 eoa: .align _start: ldr r0, =eoa ldr r1, =array mov r3, #0 loop: ldrb r2, [r1], #1 add r3, r2, r3 cmp r1, r0 bne loop stop: b stop Which is a simple [...] read more

BPF: Tyring to map out memory to sock_filter struct

I have a binary file which runs a bpf server. The BPF is "loosely" defined as follows: struct bpf{ length = 0x64 code = &c } A snippet of the code portion is: 0x00000028 0x00000004 0x61000015 0x00000028 I am looking at this through GDB. How can I look at the [...] read more

Python-Pandas Parser for Text Records arranged in non-uniform number of Rows-Lines

I'm very new to Python and pandas and I would like to parse a very big text file (200-500 MB) which has the information displayed as Records, with each record containing data fields as rows/lines rather than columns, and such Records having different number of lines (as they provide different [...] read more

32-bit pointer overflow in 64-bit gcc code - fails in compile

I am compiling a very large legacy Fortran 90 code (screamer) with gFortran on a Mac (2.2 GHz Intel Core i7) running Yosemite. (gFortran V5.1.0) I have 16 GB of RAM. The code is memory intensive and I am trying to increase array sizes to solve larger problems. I have [...] read more

A program built with makefile (mingw32) runs, but when built in IDE it crashes

I used msys64 - mingw32 (on Windows 7, 64 bit) to build a 3rd party library (libosmscout) using a supplied makefile. I was primarily interested in one particular example from the library (Demos/src/DrawMapCairo). With makefile complete library was built successfuly, including demos. Example console application of interest works fine. My [...] read more

C++ “Unable to read memory” when accessing pointer object from inherited class

I have this error: Exception thrown at 0x0108C6E9 in myprojectname.exe: 0xC0000005: Access violation reading location 0x00000028. However, this only happens when I call a function from the base class via the derived class. I need a pointer to the space object because my base class also needs that. I am [...] read more

Python ctypes: WindowsError: exception: access violation reading 0x00000028

I'm trying to create a simple MessageBox function, similar to ESRI's 'pythonaddins.MessageBox()' function by invoking the 'MessageboxA' function in the user32.dll. The difference is that my function should work regardless of whether or not it's being leveraged inside of the ArcGIS environment. I found this post and just expanded on [...] read more

GraphicsMagick - Identify and remove attached color profile

I have some tiff images that have an embedded color profile (the example one is Canon EOS-1Ds flash). When I convert them to jpeg (gm convert source.tif target.jpeg) the resulting jpeg colours are distorted in browsers (Chrome,Firefox, but not IE) but not in system image viewers. If I open the [...] read more

Embedded C compile size is bigger with int16's than with int32's. Why?

I am working on embedded C firmware for Freescale Coldfire processors. After writing some code, I began to look at ways to reduce the size of the build. We are limited on space, so this is important for me to consider. I realized I had several int32's in my code, [...] read more

OpenCV Android image processing on frame in AsyncTask

Evening, I`m trying to create an Augmented Reality application by detecting markers in a scene. In order to do that, I need to do heavy processing on an image. I do that in onCameraFrame() method at every frame, but the image processing holds up the thread and camera feels laggy [...] read more

Windows Phone app exception: System.Windows.Markup.XamlParseException

I have a windows phone app which works fine in the emulator and on my test device (Lumia 520), but when published to the store it appears everyone is having issues with it. In my crash logs I see lots of the same error: Problem Function: MS.Internal.XcpImports.TileHostV2_SetNativeContentProvider Exception Type: System.Windows.Markup.XamlParseException [...] read more

Using Files in JNI

i want working with files in JNI. I have this simple code: JNIEXPORT jchar JNICALL Java_com_sistoleaudiocapture_Processing_prueba_1nativa( JNIEnv * env, jclass, jlong retorno, jbyteArray data, jint lenbytes) { FILE * cap_trig; fopen("/sdcard/SISTOLE_Audio/prueba.pcm","rb"); fseek(cap_trig, 0L, SEEK_END); rewind(cap_trig); fclose(cap_trig); } When I only open a file and close it but the app crashes [...] read more

iphone - App crash while starting - Xcode 4

I have a crash when starting the app in iOS 3.0 (the app works fine with iOS 3.1 and above). The app has Three20 v1.0.5 and is compiled with Xcode 4.0.2 Below is the crash report: Incident Identifier: 3E43A69E-2546-4FF5-B0F0-87A2C839E909 CrashReporter Key: 24f9d24e6874aa655c34a1243e66a2fa839fdaea Process: MyApp [1109] Path: /var/mobile/Applications/A09581D8-1464-4A8C-B1EC-E366C0E67126/MyApp.app/MyApp Identifier: MyApp Version: [...] read more