In the debugging process, found a problem, compiled to generate a KO file, insmod load after the error:
Unknown symbol Var_set_integer (err 0)
Unknown symbol Parse_arg_eq (err 0)
Problem Analysis Ideas:
First, use the command to see if the kernel has this kernel symbol ,
For example, to see if there is a kernel symbol for Var_set_integer, enter the command:
#cat/proc/kallsyms | grep "Var_set_integer"
There
1. The phenomenon of problems
Host name (hostname) is displayed as unknown
2. How to Solve
My environment is for unknown, one is not set host name, two are using DHCP assigned IP mode
The workaround steps are described below:
First procedure: Modifying the hostname configuration file and creating a new node file
Vi/etc/hosts
bash-3.00# cat/etc/hosts## Internet Host Table#:: 1 localhost127.0.0.1 localho
Samsung A5 mobile Phone with this function we only need to refer to the following methods to solve the specific opening of the unfamiliar Caller ID function steps are shown below.
1. We now click the "Phone" icon on the phone and open the entry details below.2. Click the "more" option and then click on it to enter.3. Click "Settings" and then we'll find the interface.4. Slide up the screen and click on "Unknown Caller ID".5. Click the "Off" right sli
According to the relevant information on the Internet, ITunes prompts "Unknown error 50" (Figure 1), mostly due to the related configuration document parameter errors, and the easiest way to solve this problem is to reset the configuration document. Note that there are different paths for saving the itunes parameter configuration document itunesprefs in Windows XP and Windows 7 or higher systems:
If the XP system, we need to enter the C:\Docu
Many fans who use the Mac app Store to update/download software may have been plagued by "unknown errors" and how to solve them. However, after a period of time do not know what to do and their own good. Today we offer two ways to solve this problem and you can try it the next time you encounter this problem.
1, first confirm that the Mac app Store and ITunes are logged in with the same Apple ID account. Some fans may have two or more Apple IDs,
Despite the vertical-align features of CSS, it does not effectively solve the problem of vertical centering of unknown heights (in the case of a DIV tag with an unknown height of text or a picture).
Standard browsers such as Mozilla, Opera, Safari, etc., you can set the parent element display to table (display:table;), the inner child element is Table-cell (Display:table-cell), It is centered vertically by
This is an example of the horizontal and vertical centering of an unknown size picture in a known sized container, in the original title: "Centering an image of unknown size in a outer container of known size", Author: Stu Nic Holls form:http://www.cssplay.co.uk/menu/centered.html , Release date: 15th October 2006.
This article was published by Forestgan in 2006-10-17 for more articles.
This horizontal a
Today, when compiling code, I was prompted with an error: ' Sem_union ' storage size is unknown
Problem reason: in the new 2.6 kernel about Union sem_union This consortium has been annotated and needs to write the consortium itself .
Solution: First define in C file:
Union Semun
{
int val;
struct Semid_ds *buf;
unsigned short *array;
} Sem_union;
It will then be able to find a pre-defined sem_union consortium at compile time.
Tomcat application container for WebLogic The pit encountered by the application container:
Caused by:error loading configuration file Struts.xml-[unknown location] at Com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadDocuments (Xmlconfigurationprovider.java : 147) at Com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.init ( xmlconfigurationprovider.java:110) at Com.opensymphony.xwork2.config.impl.DefaultConfig
I. BACKGROUND
An error occurred while mounting a large hard drive (9TB) on a hard disk (UBUNTU12): Ubuntu uses the Pvdisplay command to discover information about an unknown drive: couldn ' t find device with UUID ' Xxxxxxxxxxxxx ', as shown in the following figure:
(Figure 1:unknown Device)
If the above error, there is no way to mount the hard disk (9TB) under the Ubuntu12 of the steps to mount, if you
Tags: mysqlbinlogMysqlbinlog view binlog log times wrong unknown variable ' Default-character-set=utf8 'When you export a SQL file by using a full file and an incremental binlog file to restore the full database. Since the bare binlog file cannot be looked directly at, so using mysqlbinlog This tool is used to view the contents of the Binlog file (using the way Man Mysqlbinlog view), But using Mysqlbinlog to convert binlog files into human-readable co
Tags: style blog http color os io using Java strongOnline Academy Program After the project has changed the SVN address, the item can be updated, but the submission will be error. Detailed log is: URL Access Forbidden for unknown reasonSvn:commit failed (details follow):Svn:access to * * Forbidden Here's how to fix it: 1. See what SVN Interface is used in eclipseView method: Press Menu in Eclipse Windows > Preference > Team > SVN #SVN接口 Client2. If th
Tags: mysql data import exception1 Window System, MySQL data import exception2 analysis reason, mostly the character set is incorrect when importing and exporting3 specifying a specific character set when importing4 Case ListUse mysqldump to back up a database, and when using MySQL to restore the backup, prompt for unknown command ' \ '. Analysis of the reason for the character set reasons, in the import when the addition of--default-character-set=utf
Tags: blog GPO double quotes values Col div nbsp pos BSPsql = ' INSERT into ' blog '. ' User ' (' id ', ' username ') values (%d,%s) '% (1,username) I am prompted after assigning aaabbb to username: "Unknown column ' Aaaabbb ' in ' Field List ' has been looking for a half-day problem with%s without double quotes. Change to the following sql = ' INSERT into ' blog '. ' User ' (' id ', ' username ') VALUES (%d, '%s ') '% (1,username) Success%s, be sure
,inchraise_mysql_exceptionRaiseErrorclass (errno, Errval) Pymysql.err.InternalError: (1054,"Unknown column ' None ' in ' Field List '") ImportPymysql#Create a connectionconn = Pymysql.connect (host='192.168.72.135', port=3306, user='Root', passwd='123456', db='Test')
#Creating Cursorscursor =conn.cursor ()#executes SQL and returns the number of affected rowsEffect_row = Cursor.execute ("insert INTO ' 222 ' set c={}". Format (None))#Commit, or you cann
Tags: folder install win7 problem SVN server nbsp ICA and XXXUse SVN to submit the file in eclipse, but an error occurred, as follows: URL Access Forbidden for unknown reasonSvn:commit failed (details follow):Svn:access to * * Forbidden However, the update project can be, the reason is that it was only after the user logged in to save the password, after swapping with new users, this problem occurs. Here's how to fix it: 1. See what SVN Interface is u
Symptom: Unable to start MySQL, error in "MySQL database directory/hostname. err" log file unknown/unsupported storage Engine:innodbCause: The MySQL5.5.8 GA default engine is InnoDB, and the configuration file (MY.CNF) is set in Skip-innodbWorkaround: Set Default-storage-engine=myisam in the configuration file (MY.CNF)Error:2013-08-18 21:08:37 21440 [Note] Plugin ' federated ' is disabled.2013-08-18 21:08:37 21440 [Note] Plugin ' InnoDB ' is disabled.
Tags: 4.0 default etc def char solution The following variables record is invalidSpring-mybatis return: Unknown column ' AHSDFF ' in ' Field list 'This kind of error is because the MyBatis character set is problematic and cannot store Chinese characters, my workaround is as follows:Onesudo gedit/etc/mysql/my.cnf//On my computer, this sentence does not add "sudo" words no way to save the content of the changesOr: VI gedit/etc/mysql/my.cnf//In the editi
1. Alert Log description
In the Oracle 11.2.0.2 database, a large number of alert logs are found as follows:
Fatal Ni connect error 12537, connectingto:
(Local = No)
Version Information:
TNS For HPUX: Version 11.2.0.2.0-Production
Oracle bequeath nt protocol adapter For HPUX: Version 11.2.0.2.0-Production
TCP/IP nt protocol adapter For HPUX: Version 11.2.0.2.0-Production
Time: 11-sep-2011 17:03:56
Tracing not turned on.
Tnserror struct:
Nsmain err code: 12537
TNS-12537: TNS: Connection close
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