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Frequently Asked Questions

Does DieHard prevent all crashes? If not, what does it prevent?

Emery Berger - DieHard FAQs
No, although that would be nice. DieHard completely prevents particular memory management errors from having any effect (these are "double frees" and "invalid frees"). It dramatically reduces the likelihood of another kind of error known as "dangling pointer" errors, and lowers the odds that moderate buffer overflows will have any effect. It prevents certain library-based heap overflows (e.g., through strcpy), and all but eliminates another problem known as "heap corruption."
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What does DieHard do?

Emery Berger - DieHard FAQs
DieHard prevents some nasty errors - ones that crash programs and lead to security vulnerabilities. These are memory errors, including double-frees & heap corruption (which DieHard eliminates), and dangling pointer errors (or stale pointers) and heap buffer overflows (which DieHard makes unlikely to have any effect).
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Does DieHard protect only programs launched after it is activated?

Emery Berger - DieHard FAQs
I see that DieHard runs multiple copies of a program and "votes". How many copies of a program are running at the same time? There is a version of DieHard for Linux that runs multiple replicas simultaneously, and then you can choose how many replicas you would like to run. However, the Windows version runs just one copy of your program.
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What versions of Windows (& Firefox) does DieHard support?

Emery Berger - DieHard FAQs
In addition to supporting nearly any application for Linux and Solaris, DieHard currently protects Firefox on Windows XP and 2003. DieHard works with Firefox versions 1.5.0.9 and higher, as well as version 2.0.0.1.
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How does DieHard differ from Vista's, OpenBSD's, and Linux's "address space randomization"?

Emery Berger - DieHard FAQs
Address space randomization places large chunks of memory (obtained via mmap / VirtualAlloc) at different places in memory, but leaves unchanged the relative position of heap objects. Linux adds some checks for particular memory management errors (and then aborts the program). Long technical answer: OpenBSD (a variant of PHKmalloc) does some of what DieHard's allocator does, but DieHard does much more.
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Can DieHard protect any other application than Mozilla?

Emery Berger - DieHard FAQs
On Windows, the DieHard protection system currently supports Mozilla only; we plan to add more applications soon. On Linux, DieHard can protect any application. In addition, programmers using DieHard (on Windows or Linux) can protect any application they are developing. My security program claims that the DieHard zip file contains a virus - can that be true? Absolutely not.
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My computer crashes when I try to attach the contents of certain CDs. How can I prevent this?

Untitled Document
This is a bug in version 1.0. This bug is only triggered by empty folders at least two levels down from the root folder. To avoid these crashes upgrade to version 1.01, or avoid attaching the contents of CDs with empty folders.
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What can be done about System Crashes?

What sorts of technical problems should I expect?
Ideally, there should be someone around 24 hours a day to make sure the system is put back up when it dies. A reasonable compromise for companies that aren't large enough to do this is to be sure someone's on the system during peak usage hours, to make sure the system is reset when it goes down.
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What if everything crashes?

Index Marketing Group | F.A.Q.
Indexed annuities do carry a guaranteed minimum return, but only if you keep the policy until its maturity date. The guaranteed return is usually 3%, but that may not be 3% of what you paid into the policy in the first place. Some companies guarantee you'll get at least 3% of 90% of what you spent. Also make sure you check on how that minimum return is computed. If, for example, you get at least 3% compounded annually, that works out to a little more than a 10% gain after seven years.
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What about computer crashes?

Tripaddiction
To ensure that the site performs well, we've designed Tripaddiction.com with very few bells and whistles. The same can't be said for the web sites of some of our recommended hotels. To reduce the risk of "crashing," limit the number of foreign web sites you visit per session. Quit and restart frequently. And if a site is taking too long to load, hit "stop" on your browser menu bar and try again later.
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If my system crashes and I have no back-up, what can I do?

Frequently Asked Questions - Education - Microsoft UK
If you have bought from one of the large OEMs (e.g. Dell, HP, Research Machines), they will have supplied one of the following: If you have bought from any other PC reseller or manufacturer, they will have supplied a CD with a Microsoft Operating System (OS). If you lose your recovery CD or your Microsoft OS CD and your system crashes, you will have to buy the OS again. If you bought your PC from an OEM (for example, Dell or HP), you may be able to get another recovery CD direct from them.
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Does bed rest help prevent preterm labor? What should a mother do to prevent it?

Patients' Frequently Asked Questions (PFAQ) - Parenting & In...
All evidence shows us that there are absolutely no certain means to prevent preterm labor. When patients are diagnosed with preterm labor, it is controversial whether bed rest is helpful. We recommend to all our patients to limit activity and sometimes to be on strict bed rest, but we tell them at the same time that we are not sure it is any more effective than not doing it.
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How does fluoride prevent tooth decay?

The Canadian Dental Association - Your Oral Health - FAQs & ...
Fluoride works by making the outer layer of teeth (called tooth enamel) stronger. When the outer layer is strong, teeth are less likely to get cavities.
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What does the school do to prevent the spread of head lice?

Henrico County Public Schools :: Your Administration :: Admi...
When a child in elementary school is found to have head lice, or a parent calls us to tell us their child had head lice, all students in the classroom are immediately screened for head lice. Letters are sent home to parents so they can check their child's head for signs of lice for the next several days. Children who have had head lice are re-screened upon return to school before they are allowed back into class to ensure that the treatment has been properly administered.
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Why does the bot crash sometimes? What can I do to reduce the crashes?

Yamb FAQ
The d2jsp core crashes sometimes due to a number of reasons. You can help to reduce the chance of a crash by running off a fresh reboot of your system, terminating unneeded background processes (e.g. MSN Messenger), and making sure that your computer has enough available RAM memory, while the bot is running. You can also try disabling features. I have been trying hard to add config vars to features so you can turn them on or off.
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The code in CVS crashes/does not work, why?

faq :topic 'Langband)
The code in CVS is development code, and might not even compile, and much less work. Please use releases if you want things to "work". The CVS-version is bleeding edge though and may have bug-fixes and features missing in releases. CVS is also where exciting things happen and where you can track day-to-day development.
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What is Talkback, and why does it appear after Camino crashes?

Camino. Documentation. FAQ
If Camino crashes, you???ll see a program called Talkback appear, asking you to send information about the crash. Asa Dotzler of mozilla.org has written a good explanation of what Talkback is: Talkback is a client application and server (plus server infrastructure and development/administration people) contributed to mozilla.org by Netscape [in the 1990s]. mozilla.
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Q6. How does drinking coffee help prevent liver cancer?

Positively Coffee: > topics > Coffee and Cancer > F...
A.Various components of coffee have been related to such a positive effect, including caffeine, coffee oils kahweol of cafestol, and antioxidant substances from coffee, but no definite evidence is available. However most scientists agree that it is probably the antioxidants in coffee, working in conjunction with caffeine, which results in this positive effect.
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Why does Medifast Plus for Coronary Health help prevent CHD?

Medifast Frequently Asked Questions. (FAQ's)
Medifast Plus for Coronary Health contains Coenzyme Q10. This nutrient has been shown in studies to reduce plaque deposits in the arteries and reduce the incidences of plaque rupture, both of which are precursors to heart attacks. Amino acids are vital to maintaining heart health. Medifast Plus for Coronary Health contains amino acids that have been shown in studies to prevent fatty build-up in the heart and liver.
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How well does rotavirus vaccine work to prevent rotavirus disease?

Vaccines: VPD-VAC/Rotavirus/Vaccine FAQs
Overall, approximately 72,000 healthy infants were studied worldwide in randomized placebo-controlled studies to look at both the safety of RotaTeq® and how well it works. The data showing how well RotaTeq® prevents rotavirus gastroenteritis comes from almost 7,000 of these infants from the United States and Finland. In these studies, RotaTeq® prevented 74 percent of all rotavirus gastroenteritis cases and 98 percent of the severe cases.
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If the JMU Web Manager crashes, does that mean no one can reach my site?

JMU - JMU Web Manager: Frequently Asked Questions
No. Since the JMU Web Manager produces static HTML pages and places them on your Web site, your Web visitors are not affected by the status of the JMU Web Manager.
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Does CADVANCE have any drawing recovery methods in case my computer crashes while I'm drawing?

FAQ - D
Yes, in Options/Miscellaneous you will find the "Values" tab containing an entry for 'AutoSavePeriod (min)' in v99 and v2000. (under 'SaveDrawingPeriod' in v7 and v8). Set this value to an integer X greater than zero, and then save to the Cadvance.ini. This will AutoSave your working drawing every X minutes in the VWF format with the same name as the drawing and with the extension of the User ID, but will be deleted upon exiting the current drawing session.
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The screen goes blank and the game does not run or it crashes. What should I do?

Jolly Bear Games: Frequently Asked Questions
This problem is often caused by incompatibilities between your computer's display drivers and the game you are trying to run. You should perform the following steps to try and resolve the problem: Upgrade your computer's video card drivers by identifying the driver type and following instructions on the manufacturer's website. See if Microsoft has any updated drivers available by running Windows Update, which can be found under your 'START' menu, or under 'START / All Programs'.
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soon as I do something with Subclipse on Windows, Eclipse just crashes. Why does this happen?

Subclipse FAQ
This is a fairly recent problem that is caused by a DLL incompatibility. Subversion uses a library called APR or the Apache Portable Runtime. This library has a component called APR-ICONV which is used for translating characters in path and file names to/from UTF8 and the local character set. The release of Apache 2.2 brought with it new releases of APR and APR-ICONV and these are not binary compatible with previous releases. Subclipse ships with the Apache 2.0 version of these libraries.
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Does PowerKey Pro work even if the system crashes, or if the computer is turned off?

Sophisticated Circuits FAQ
PowerKey Pro is a combination of both hardware and software. While the system is running normally, the PowerKey software takes care of everything that PowerKey Pro is programmed to do, and periodically signals the PowerKey Pro hardware to maintain communication. When you shut down your Mac, the PowerKey software signals the PowerKey Pro hardware that the system is shutting down, turning over control to the hardware.
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Why does Coccinella crashes when run from sources?

Frequently Asked Questions
If you run Coccinella from sources and a Tcl/Tk installation and it crashes just when the splash screen is finished it is likely the buggy Img package in the Tcl/Tk installation. Find the package typically at:
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