pointer to a user space, the kernel needs to verify:
The memory area pointed to by the pointer belongs to user space
The memory area pointed to by the pointer is in the address space of the process
If it is read, the memory should be marked as readable; if it is write, the memory should be marked writable; if it is executable, the process must not bypass the memory access limit
0x03 How to add a system call
Add system Call Function (/KERNEL/SYS.C)
.
Surfing the web and putting on a sweater on the browser
Computer is one of the most important uses of the Internet, but to tell the truth, now the Internet is not worry, viruses, Trojans and rogue software rampage, even a number of large sites will be hung horse, users are really impossible to guard against. And a lot of malware will tamper with the browser home page or other browser settings, once the recruit, open the browser will pop up a messy
i7-6950x/gtx1080 Computer Configuration evaluation Diagram
i7 6950X with Asus ROG Strix-gtx1080-08g-gaming graphics, plus 509 chassis, can be said to be the most powerful hardware, enough contempt for all other DIY host. Less gossip, the following author will be the ASUS host for all-round evaluation, we look at this host is not your heart the strongest configuration host, take a look at it.
ASUS host detailed configuration is as follows:
Test platform hardware and sof
to 5) devices. But the FCC's decision has drawn opposition from members of the internal and Bluetooth groups, mainly on the basis of frequency conflicts and large power consumption. At the same time, some members of the HomeRF Working Group suggested that the original launch bandwidth from 1MHz to 5MHz, so that the rate can be increased more, but opponents believe that the message was in the narrow signal channel beat, now if the narrow channel widened, it will be like a truck in several lanes
-row, 20-column table using the Insert Table tool on the Standard toolbar. Select the first row, set the text size to 5th, and then through the format--_ paragraph menu, set the line spacing to single spacing and make the grid snap if the document grid is defined This option is unchecked, OK.
The second step is to carefully resize the cells to make them look beautiful (even if each cell is of the same size and basically square).
The third step, the formation of the upper and lower lattice betw
This is a virus rampant, Trojan rampage of the era. Some of the files may have hidden Trojan virus, inadvertently will recruit, become a "chicken". Lurking in the file Trojan virus, light by the naked eye is hard to find, permanent free Jinshan poison PA built-in "cloud Appraiser", you can quickly identify the security of documents within 99 seconds, to ferret out the virus lurking in the file.
Software small File
Software name: Jinshan Poison PA (p
users, you can set access permission permissions on NTFS partitions for shared resources, folders, and files, which are much higher security than fat 32. So, in addition to using FAT32 for compatibility in the primary system partition, it is more appropriate to use NTFS for other partitions. If you are using FAT32 in other partitions, we cannot even image the virtual DVD disc (file size limit) on our hard disk, and we cannot set permissions for folders and partitions, so it's natural to save do
Today, I reconfigured vim and configured it as a complete IDE. Includes auto-completion, file list, function list, etc. Take a picture first: Here is the file configuration:Set Shortmess=ati "does not show that assistance for Ugandan children at startup set Nu" Display line number syntax on "syntax highlighting set ruler" Show Ruler set Showmodeset showcmdset hlsearchset nocompatible "get rid of nasty about VI consistency mode, avoid some bugs and limitations of previous versions set Cursorco
Recently, small code brother encountered a IE6 under the z-index attribute failure problem! Let my humble tangled long time. The heart that uncomfortable ah! Finally, although solved the problem I encountered, but also made the following summary: (hope to " make money on the code " Lennon helped).In fact, the Z-index property in the standard browser whose property values are measured exactly by size to whom. But in this era of various browser rampage,
"How to do the site update, at random is copied, copy copy that copy, only for the site ranking copy." "Feeling in the Internet of serious plagiarism phenomenon, I can actually poetry, of course, is purely fabricated, please do not shoot bricks." Now the internet has changed, the site can be said to be tens of thousands of dead, and a heap of N, but a good site is less and fewer, good article is like milking, half a day to see one.
Website optimization theory has not been widely before, large p
circle, each circle needs moderate protection, not the circle of protectionism, at least let people familiar with this circle come in, a circle once there is no threshold, everyone can participate, Then the circle is not far from the crash, because no circle can hold its members indefinitely. A moderate threshold not only protects the inner circle but also maintains the rules within the circle, and it is not a good thing for some people who do not know the rules to enter the circle.
The lowerin
Although the webmaster do not like to do outside the chain, but you have to admit that the chain is the impact of the decision to determine the ranking of the key factors, so the webmaster can only "involuntarily" to do something do not love to do. In the final analysis, everyone is to eat for a mixed meal, wronged himself is nothing.
Today we talk about the strategic principles of the construction of the chain, that is, some of the macroscopic things. The so-called strategy, it represents you
search results, some words may not match the information competition, then with your current optimization of the main keyword, optimization of this kind of keyword is usually very small, even more difficult than the general long tail keyword is less difficulty.
Summarize
Perhaps now seoer friends have this kind of feeling, do keyword optimization ranking that is more and more difficult, this is mainly because of the current site too much competition, cheating methods, cheating software
In 2011, the search engine adjustment can be described as mutation, Baidu, Google and other search engines on the one hand to consider the site's user experience, on the one hand to combat the station group and so on, how to achieve balance, Baidu is also very helpless, so we are unlucky, now 2011 is about to pass, will attract Chen Yurong to guess the next 201,200 degrees will be done adjustment, is purely personal conjecture, the wrong place, do not make bricks.
I. Adjustment for the statio
Kaspersky Anti-Virus software (Kaspersky Antivirus), formerly known as Antiviral Toolkit Pro (AVP), out of habit and simplicity, is called AVP or Kav.
Learning the significance of the detection of AVP is one aspect of AVP's detection method is a theoretical and practical test of the scientific and reasonable method, another DOS friends over the anti-virus has had such experience: "The machine infected with the virus?" OK, please use the clean and non-toxic system disk to start, and then the who
you go into the dungeon loading scene, the scene does not know that you have a few heroes. So after the scene is loaded you still need to load these models. Whether you are working with a collaborative task or in a method, because Unity does not have multi-threaded, generally in order to faster into the game here the load will choose to sync load, so you will find that most of the game progress bar loaded in the end will be stuck.In order to solve th
Effective C + + ' ning to pass-by-reference-to-const replace Pass-by-value 'By default, C + + passes an object to a function by value (a way that inherits from C). Unless you specify otherwise, the function parameter is the initial value of the actual copy (Dungeon), and the return of the function is also a duplicate of the value returned by the call. These copies (replicas) are produced by the object's copy constructor , which can make pass-by-value
, check WINUSB equipment, complete installation
Four, Xbox one game handle optimization
1, running the Xboxgamepad_1.0app directory of XboxOneDriverApp.exe main program
2, the program will automatically identify the current connected Xbox One game handle
Note: If you encounter a game that does not support the Xbox One handle, you can turn on the Trigger button button function in the tool
Five, Xbox One handle simulation for Xbox 360:
If the player needs to simulate an Xbox One handle as an
masterpiece to the Mac platform, and the introduction of a hardcover version, including two pieces of "slingshot" (Slingshot Pack) And "Elite Fighters" (Elite soldier Pack).
4. Lego: Lord of the Rings (Lego:the Lord of the Rings) | listed, download address: Mac app Store
"One cannot easily enter Mordor." "(Translator note: The movie" Lord of the Rings 1: The Ring of the Rings "in Bo Romil lines.) But it's OK now, because the Mac version of the action adventure game Lego: Lord of t
History of the cache directory
33, Yd_speech: Youdao dictionary word pronunciation of the cache directory.
34, Youmicache: Deleted will be automatically generated, Yau Rice ads cache directory, advertising programs embedded in its program.
35, the Glu:glu series of games of information package storage, such as 3D Deer Hunter, brave two brothers and so on.
36, APADQQ-IMAGES:QQ for pad cache directory.
37, Dundef: Dungeon Keeper's packet.
38, Kuw
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