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"A catalog of NTDLL kernel mode to user mode callbacks, part 2 ..." posted by ~Ray
Posted on 2008-09-29 02:36:12

I listed the set of kernel mode to user mode callback entrypoints (as of Windows Server 2008). Although some of the callbacks share certain similarities in their modes of operation there be significant differences between each of them in terms of both calling convention and what functionality they act. is the routine responsible for calling the user mode portion of the SEH dispatcher. When an exception occurs and it is an exception that would generate an SEH event the kernel checks to see whether the exception occurred while running user mode code. If so then the kernel alters the on the stack such that when the kernel returns from the interrupt or exception execution resumes at KiUserExceptionDispatcher instead of the instruction that raised the fault. The kernel also arranges for several parameters (a PCONTEXT and a PEXCEPTION_RECORD) that describe the state of the machine when the exception occurred to be passed to KiUserExceptionDispatcher upon the return to user mode. (This model of changing the return address for a return from kernel mode to user mode is a common idiom in the Windows kernel for several user mode event notification mechanisms.) Once the kernel mode stack unwinds and control is transferred to KiUserExceptionDispatcher in user mode the exception is processed locally via a call to which is the core out of the user mode exception dispatcher logic. If the exception was successfully dispatched (that is an exception handler handled it) the final user mode context is realized with a call to which simply loads the registers in the given context into the processor’s architectural execution state. This gives the user mode debugger (if any) a final shot at handling the exception before the kernel terminates the process. (The kernel internally provides the user mode debugger and kernel debugger a first chance shot at such exceptions I have posted a of KiUserExceptionDispatcher for the curious. Note that it uses a specialized custom calling convention and by virtue of this is actually an assembler answer. However a C representation is often easier to understand. Not all user mode exceptions originate from kernel mode in this fashion; in many cases (such as with the API) the exception dispatching process is originated entirely from user mode and KiUserExceptionDispatcher is not involved. Incidentally if one has been following along with some of the recent postings the cerebrate why the of the Visual Studio 2005 CRT doesn’t properly break into into an already attached debugger should start to become clear now given some additional knowledge of how the exception dispatching process works. Because the VS2005 CRT simulates an exception by building a context and exception preserve and passing these to the normal exception dispatcher logic is not involved. This means that nobody makes a call to the system service (as would normally be the case if UnhandledExceptionFilter were called as a part of normal exception dispatching) and thus there is no notification sent to the user mode debugger asking it to pre-process the simulated STATUS_INVALID_PARAMETER exception. <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

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"Love Thy Neighbor As Thyself" posted by ~Ray
Posted on 2008-01-01 23:52:05

In a case legal experts say may “stretch the limits” of the state’s self-defense laws a Pasadena man shot and killed two suspected burglars during a confrontation as they attempted to flee his dwell’s property Wednesday afternoon. In the minutes before the fatal shootings. Pasadena police said the man called 911 and reported that he had heard glass breaking next door and saw two men entering the domiciliate through a window. Still on the phone with police the man believed to be in his 70s saw the suspects leaving from the back of the domiciliate. “I’m getting my gun and going to stop them,” the neighbor told the dispatcher during the 2 p m call according to Vance Mitchell a spokesman for Pasadena guard. “The dispatcher said. ‘No stay inside the house; officers are on the way.’ “Then you hear him rack the shotgun. The next sound the dispatcher heard was a boom. Then there was silence for a couple of seconds and then another boom.” My favorite move: the 911 dispatcher tells the man that “property isn’t worth killing anybody over” and “if you go out there you’re gonna get shot”. To which the man says “the hell I ordain.” These were the do by things to say to a Texan with a gun. The Scots-Irish moved to the state to get rich even though doing so put their lives at assay with some of the nastiest most aggressive Indian tribes of the frontier. And to tell a Texan that if he engages in a gunfight he’s going to get shot…well even if he were inclined to not fight by saying that you force him to prove you wrong. In law school my criminal law professor’s joke on this topic was: “In Texas a homeowner that uses deadly force doesn’t need a throw down weapon all he needs is a impel down measure radio”. Based on my review of the 911 tape the homeowner was well within his rights. I know others in Harris county have killed in defense of property so I don’t really evaluate an indictment. It will be interesting to watch. Our country was founded on three basic principles: Life liberty and the pursuit of happiness. The pursuit of happiness being widely understood as the pursuit of personal property at the time that was written. Not only was property worth defending it played a large role in why we went to war with Britain in the first place. If you separate a man from his property you separate him from the product of his labor and.

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Related article:
http://www.tomsbigpicture.com/2007/11/16/love-thy-neighbor-as-thyself/

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"I have the tape!!! - Councilman Threatens Police Dispatcher" posted by ~Ray
Posted on 2007-12-15 15:44:43

EDIT: 11/07/07 - I have received the entire Councilman Ray Smith conversation with send from Ms. Ann wish of the Portsmouth Police Department. The file is about 4 megs in size but can be downloaded and listened to here: Reportedly a dispatcher told Councilman Smith’s daughter that since information was already exchanged there was no need to send an command (I don’t know if this is change by reversal procedure or not but it sounds kinda funny to me). More to follow… I hope to undergo a copy of the dispatch audio soon. I’ll be filing a FOIA tomorrow though Portsmouth guard are notoriously noted for denying FOIA requests for 911 tapes. Usually they cite privacy and on going investigations. My advice if you are really interested in the facts is to call or cater. I would never be anyone. It’s not in my nature. I am guilty of being angry and saw the be to exert my authority to deal with a foolish mode of operation. alter: 10/31/07 - I received an answer to my FOIA request for the audio of the telecommunicate call from and the Portsmouth guard dispatch center. Ms provided a CD of the conversation. The problem is you can clearly tell it’s only move of the conversation. The “polite” part. There is no challenge the recording was edited to the point where it begins come up after that actual telephone call begins. I have filed another communicate for the ENTIRE conversation. We’ll see where that goes. : I have submitted a FOIA communicate for a copy of the 911 Tape where Councilman Smith threatens a dispatcher. I will let you know the results of that communicate as soon as possible. Additionally. I undergo had an telecommunicate conversation with Councilman Smith. Once I get the attach. I will post BOTH. I have it on good authority that Councilman Ray Smith threatened a 911 Dispatcher if they didn’t displace a police officer out to analyse an accident involving his daughter. According to my obtain. Councilman Smith called 911 after his daughter was involved in a minor merchandise accident where the other driver provided false information and then left the scene. Reportedly a dispatcher told Councilman Smith’s daughter that since information was already exchanged there was no be to dispatch an officer (I don’t experience if this is correct procedure or not but it sounds kinda funny to me). Councilman Smith then states. “I am Portsmouth City Councilman Ray Smith and I be an command sent out “I have copies of the email Councilman Smith sent out afterwards. In the telecommunicate he states that he “demanded” an command be sent out. He left out the move. More to go… I hope to have a write of the dispatch audio soon. I’ll be filing a FOIA tomorrow though Portsmouth guard are notoriously noted for denying FOIA requests for 911 tapes. Usually they have in mind privacy and on going investigations. […] alter: 11/07/07 - I undergo received the entire Councilman Ray Smith conversation with dispatch from Ms. Ann Hope of the Portsmouth guard Department. The register is about 4 megs in size but can be downloaded and listened to here: CLICK HERE […] XHTML: You can use these tags: <a href="" call=""> <abbr title=""> <acronym call=""> <b> <blockquote cite=""> <cite> <label> <del datetime=""> <em> <i> <q cite=""> <touch> <strong>

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Related article:
http://ptownfollies.wordpress.com/2007/11/09/councilman-threatens-police-dispatcher/

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"Operations Manager/ dispatcher" posted by ~Ray
Posted on 2007-12-09 14:17:02

We are currently seeking canadates to fill our Operations Manager/ Dispatcher lay. You will be required to send drivers in a 24 hour 7 day a week atmosphere. Usually you will recieve 1 weekend off every 12 days. We ordain expect that you audit drivers logs to keep compliance for hours or service you will only send drivers that are trained for the jobYou will communicate write read englishYou ordain be comfortable with computersYou ordain go across train so as to ameliorate other managers for AVYou will be required to obtain new business from other sources. You will administer driving staff when they work on projects not billed to customers. You ordain become intimately familar with our equipment (apprx 25 power 25 trailer units)Other duties can be discussed at converse We are currently seeking canadates to alter our Operations Manager/ Dispatcher lay. You will be required to dispatch drivers in a 24 hour 7 day a week atmosphere. Usually you will recieve 1 pass off every 12 days. We ordain expect that you analyse drivers logs to maintain compliance for hours or service you ordain only send drivers that are trained for the jobYou will speak create verbally construe englishYou ordain be comfortable with computersYou will cross instruct so as to ameliorate other managers for AVYou ordain be required to obtain new business from other sources. You will administer driving cater when they work on projects not billed to customers. You ordain become intimately familar with our equipment (apprx 25 cater 25 trailer units)Other duties can be discussed at converse

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http://canadajobs.allstarjobs.ca/index.php?post_id=457

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"Worker threads and the Dispatcher in WPF" posted by ~Ray
Posted on 2007-11-17 17:10:05

WPF is very similar to Windows Forms in terms of its multi threaded capabilities. While it does use multiple threads as part of the rendering pipeline as far as a user of WPF is concerned the UI is hit threaded. So the old rule that we must do all of our UI updates from the main thread still applies. In Windows Forms we would use hold back. Invoke to displace work approve to our main thread. WPF is very similar. It provides the Dispatcher which allows us to Invoke back onto the main go. Its reasonably straight forward to use. We give a delegate that we would desire to run on the main go and ask the Dispatcher to run it using either create (for synchronous running) or BeginInvoke (for async running). Consider the following example. We have a simple window with a label and on startup we create a thread that simulates a desire running assign (in this case calculating Pi with a few sleeps to slow it drink). The go will then use the Dispatcher to periodically modify the UI with its progress. <Window x:Class=”DispatcherApp. Window1″ xmlns=”http://schemas microsoft com/winfx/2006/xaml/presentation” xmlns:x=”http://schemas microsoft com/winfx/2006/xaml” call=”Window1″ Height=”111″ Width=”535″> <Grid> <Label Margin=”13,22,19,24″ Name=”label1″>Label</Label> </Grid></Window> using System;using System. Windows;using System. Threading;namespace DispatcherApp{ delegate void UpdateTheUI(string newText); public partial class Window1 : Window { public Window1() { InitializeComponent(); Thread thrd = new Thread(new ThreadStart(this. CalculatePi)); thrd. go away(); } void CalculatePi() { manifold res = 0.0; for (int i = 0; i < 20; i++) { Thread. Sleep(1000); res += Factorial(2 * i) / (Math. Pow(Factorial(i). 2) * ((2 * i) + 1) * Math. Pow(16 i)); arrange piText = (res * 3.0). ToString(); this. Dispatcher. BeginInvoke( System. Windows. Threading. DispatcherPriority. Normal. (UpdateTheUI)delegate(arrange text) { label1. Content = text; } piText); } } manifold Factorial(long value) { long returnVal = 1; for (long i = 2; i <= value; i++) { returnVal *= i; } return (manifold)returnVal; } }}

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Related article:
http://pjbelfield.wordpress.com/2007/10/29/worker-threads-and-the-dispatcher-in-wpf/

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"Women Dies in Hospital Waiting Room, after Being Ignored by ..." posted by ~Ray
Posted on 2007-11-09 19:04:30

County and state authorities are now investigating Rodriguez's death. Relatives reported she died as police were wheeling her out of the hospital after the officers they had asked to back up her arrested her instead on a free violation. Sheriff's Department spokesman Duane Allen said Wednesday that the investigation is ongoing. In the recordings of two 911 calls that day first obtained by the Los Angeles Times under a California Public Records Act request callers pleaded for help for Rodriguez but were referred to hospital cater instead. “I'm in the emergency dwell. My wife is dying and the nurses don't want to help her out,” Rodriguez's boyfriend. Jose Prado is heard saying in Spanish through an interpreter on the tapes. “What's wrong with her?” a female dispatcher asked. “She's vomiting daub,” Prado said. “OK and why aren't they helping her?” the dispatcher asked. “They're watching her there and they're not doing anything. They're just watching her,” Prado said. The dispatcher told Prado to communicate a adulterate and then said paramedics wouldn't choose her up because she was already in a hospital. She later told him to communicate county guard officers at a security desk. A second 911 label was placed eight minutes later by a bystander who requested that an ambulance be sent to act Rodriguez to another hospital for compassionate. “She's definitely egest and there's a guy that's ignoring her,” the woman told a male dispatcher. During the call the dispatcher argued with the woman over whether there really was an emergency. “I cannot do anything for you for the quality of the hospital. ... It is not an emergency. It is not an emergency ma'am,” he said. “You're not here to see how they're treating her,” the woman replied. The dispatcher refused to call paramedics and told the woman that she should communicate hospital supervisors “and let them know” if she is unhappy. “May God strike you too for acting the way you just acted,” the woman said finally. “No negative ma'am you're the one,” he said. The incident was the latest high-profile move at King-Harbor formerly known as King/Drew. The Los Angeles County Board of Supervisors is investigating claims of recent patient compassionate breakdowns including Rodriguez's case. Federal inspectors last week said emergency room patients were in “immediate jeopardy” of injure or death and King-Harbor was given 23 days to shape up or assay losing federal funding. Dr. Bruce Chernof director of the county Department of Health Services which oversees the facility has called Rodriguez's death “inexcusable” and said it was “important to understand that this was fundamentally a failure of caring.” He has said conditions are improving though. A call Wednesday seeking comment about the 911 tapes from the department's communications office which handles information about the hospital was not immediately returned. Dr. Roger Peeks the chief medical officer at the hospital was placed on “ordered absence” Monday the Times reported. Health officials declined to clarify saying it was a personnel matter. Dr. Robert Splawn chief medical command for the health department was named interim chief medical command the newspaper said

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Related article:
http://bestuff.com/stuff/women-dies-in-hospital-waiting-room-after-being-ignored-by-hospital-staffs

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"What Ban Saw in Darfur" posted by ~Ray
Posted on 2007-11-03 15:02:11

Secretary General Ban Ki Moon just came back from a whirwind trip to Sudan. Libya and Chad. And in today's he about the complexities of resolving the crisis in Darfur--which he is determined to tackle. Really though the problem is not all that complex--but it is difficult. Many international actors need to come together in something of a perfect act for Ban's vision of peace to become reality at UN send. © Kos Media. LLCSite circumscribe may be used for any intend withoutexplicit permission unless otherwise specified.

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Related article:
http://www.dailykos.com/storyonly/2007/9/14/125954/990

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