Windows error 0x80000005, -2147483643

How to use Intel Westmere 1GB pages on Linux?

Edit: I updated my question with the details of my benchmark For benchmarking purposes, I am trying to setup 1GB pages in a Linux 3.13 system running on top of two Intel Xeon 56xx ("Westmere") processors. For that I modified my boot parameters to add support for 1GB pages (10 [...] read more

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

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

Windows Server 2008 R2 System State backup

Running a member server 2008R2 server. Backups have been running fine for some time but recently ceased to run. We have been using CloudBerry Lab Enterprise Backup to store backups in cloud storage. I started looking at CloudBerry logs and did not get much information. -------------------------------------------------------------------------------- 2015-06-25 08:18:54,230 [UI] [1] [...] 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

OSPF: quagga and HP ProCurve not talking

This question is related to a previous one on OSPF routing. Based on the advice give to the previous question, I have now made myself a network diagram, identified the backbone area and all other areas and started configuring OSPF on the various routers. All the HP ProCurve 7102dl routers [...] 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

How to interpret cpuid's page size information about TLB

I have used the cpuid | grep -i tlb command on the terminal to try to determine the exact number of page table entries (and the corresponding page-sizes) being used by the machine. This is what I've got. cache and TLB information (2): 0x63: data TLB: 1G pages, 4-way, 4 [...] 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

Cleanly analyzing and handling integers

I am reverse engineering an old game format. For their textures, they store display type information in a single integer. I initially though the different bits were boolean flags. For example, if bit 1 was set, the texture is transparent. The more I have worked through the different display types, [...] read more

KANNEL SMPP not able to send message to geturl

We are not able to receive MO on smpp kannel below if the configure smsbox configuration group = smsbox bearerbox-host = 127.0.0.1 sendsms-port = 13013 global-sender = 13013 sms-length = 500 smsbox-id = mysmsc group = sendsms-user username = tester password = foobar #max-messages=3 # http://kannel.machine:13013/cgi-bin/sendsms?username=tester&password=foobar group = sms-service accepted-smsc [...] 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

Error on opening MemoryMappedFile in another process, C# compact framework

I have created a MemoryMappedFile using C#.Net Compact Framework on WinCE7. When I am trying to open the same MemorymappedFile in another process, I am getting a null file handle. Here is the code I am using. namespace MMFWriteDemo { [Serializable] public class FileMapIOException : IOException { private int m_win32Error; [...] read more

How to convert from sign-magnitude to two's complement

How would I convert from sign-magnitude to two's complement. I don't know where to start. Any help would be appreciated. I can only use the following operations:!,~,|,&,^,+,>>,<<. /* * sm2tc - Convert from sign-magnitude to two's complement * where the MSB is the sign bit * Example: sm2tc(0x80000005) = -5. [...] 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

Event ID 521 - Critical Logging Failure on Domain Controllers

I'm tasked with the monitoring and analysis of variious logs via our SIEM solution; LogRhythm. I noticed a few weeks back that we had large volumes of this event originating from all of our domain controllers. The log data is as follows: EventID: 521 Event Data: unable to log events [...] read more

OSPF - default-information originate : multiple routers

basic network [https://i.stack.imgur.com/ibFOc.gif] I receive a default route via iBGP from R1. On both R2 and R3 I have default-information originate configured. On R4 I only see one default route in the OSPF database; either to R2 or R3. When I shutdown one of the links from R2 / R3 [...] read more

Unable to query value of CSDVersion

I followed this C# example and am able to query some registry values, but not all of them: How to obtain a registry value from a remote machine if I don't know its type? (C#) I can reliably get registry keys such as the CurrentVersion, the ProductName, etc. But when [...] 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

Windows IFS: own filesystem VS notepad.exe

Windows 10 x64 - implemented own filesystem, the usual directory traversal, copying, reading, deleting files work in DOS, git bash, and explorer. But can not read files in notepad.exe! I have a "hello world" text file named "a.file.txt" on my filesystem drive E:, and if I try to read it [...] read more

pySMB Windows File Share Buffer Overflow

Hi I have been stuck on an error in python using the pySMB module. While making a script for myself I ran in to some trouble with trying to connect to a Network share. Here is the Python Code from smb.SMBConnection import SMBConnection server_name = 'Server' client_name = 'My Computer' [...] read more

Windows Azure (Phone Factor) Multi-Factor Authentication Issues with Cisco ASA

I have a Cisco ASA security appliance and I am trying to use the Azure MFA Server on a domain member (virtual) server (Windows Server 2012 R2). The MFA server is installed, and configured correctly to the best of my knowledge. When I run an AAA test from the Cisco [...] read more

In binary, convert from signed-magnitude to two’s-complement. All in C

I have an interesting puzzle. I need to convert from a signed number, say -5 (0x80000005) to two’s complement -5 (0xFFFFFFFB). The only operators I can use are, !, ~, &, ^, |, +, <<, >> and at most 15 of them in any combination with as many variables as [...] read more