8 More Discussions You Might Find Interesting
My latest challenge sees me assisting with the setup of one of our classroom labs.
We are trying to configure the lab so that the (5) IBM 9115-505 servers (all running AIX7.1) have their serial 0 ports connected to a Digi PortServer II, which is on the classroom LAN, along with the... (4 Replies)
Discussion started by: richardsantink
2. Red Hat
Could you “crontab” it to run every 10 minutes on work days (Mo - Fr) between 08:00 and 18:00
i know to run every 10 mints but can any one guide me how to achieve the above one (2 Replies)
Discussion started by: venikathir
3. Shell Programming and Scripting
I'm seeking some assistance in getting this script to run as a cron job for the user oracle.. the script is basically to perform 2 ADRCI checks... see the script below... i'm getting the following error: /export/home/oracle/Daily_Checks/ADRCI_Daily_Checks.sh: syntax error at line 16:... (7 Replies)
Discussion started by: Racegod
Critical AIX production box crashed/rebooted while our team is working on it and we need to generate a detailed report for that, below are few questions that need to be included in the report. (We are System Administration team and everyone in our team has root access via sudo as well... (3 Replies)
Discussion started by: lovesaikrishna
5. UNIX for Dummies Questions & Answers
I'm sorry if this is answered elsewhere, I've used the search function and can't find the specifics of what I'm after.
I am brand new to playing with linux, and ideally I want to get better to help the company that I now work for.
What I want to do:
Create a script that I... (4 Replies)
Discussion started by: Aussiemick
we all know what command 'COLUMNS=2047 /usr/bin/ps –eo pid,ppid,uid,user,args' does.It prints 5-column output for the running processes on a AIX box.
Here is simple thing i need:
I need to insert this tabular data in a db2 table.
How do i need?
I have created table with these five... (0 Replies)
Discussion started by: ak835
7. UNIX for Advanced & Expert Users
How to allocate memory for a shell script on aix box at the time of execution i.e at runtime
Are there any commands for AIX in specific
Thanks in Advance (1 Reply)
Discussion started by: aixjadoo
Please tell me how to get radio buttons, text boxes , check boxes , option buttons , pull down menus in C++ on Unix.
I think it would be done using curses.h ..but that's all i know.
Devyani. (3 Replies)
Discussion started by: devy8
CRITICAL_ENTER(9) BSD Kernel Developer's Manual CRITICAL_ENTER(9)
critical_enter, critical_exit -- enter and exit a critical region
These functions are used to prevent preemption in a critical region of code. All that is guaranteed is that the thread currently executing
on a CPU will not be preempted. Specifically, a thread in a critical region will not migrate to another CPU while it is in a critical
region. The current CPU may still trigger faults and exceptions during a critical section; however, these faults are usually fatal.
The critical_enter() and critical_exit() functions manage a per-thread counter to handle nested critical sections. If a thread is made
runnable that would normally preempt the current thread while the current thread is in a critical section, then the preemption will be
deferred until the current thread exits the outermost critical section.
Note that these functions are not required to provide any inter-CPU synchronization, data protection, or memory ordering guarantees and thus
should not be used to protect shared data structures.
These functions should be used with care as an infinite loop within a critical region will deadlock the CPU. Also, they should not be inter-
locked with operations on mutexes, sx locks, semaphores, or other synchronization primitives. One exception to this is that spin mutexes
include a critical section, so in certain cases critical sections may be interlocked with spin mutexes.
These functions were introduced in FreeBSD 5.0.
October 5, 2005 BSD