12-08-2010
Do not crosspost! You've been warned before!
10 More Discussions You Might Find Interesting
1. Filesystems, Disks and Memory
Hello. I'm writing some random access i/o software on Solaris 8 using mmap64 to memory map large files (my test file is ~25 GB).
The abbreviated code fragment is:
fd = open(cbuf,O_RDONLY|O_LARGEFILE);
struct stat statbuf;
fstat(fd,&statbuf);
off_t len =... (0 Replies)
Discussion started by: gusm
0 Replies
2. HP-UX
We recently have been seeing the following type of error on our development server. Being somewhat new to HP-UX I was hoping to get some insight. Here is what I have found.
I have been doing some research.
/usr/lib/dld.sl: Call to mmap() failed - TEXT /u07/mdev/lib/libCLEND.sl... (2 Replies)
Discussion started by: scotbuff
2 Replies
3. UNIX for Advanced & Expert Users
I'm using select() to monitor multiple file descriptors (inet sockets) in application. But this application must also collaborate with other applications on the same host via shared memory (mmap'ed file) due to performance reasons. How can I become notification that mmaped memory is changed or... (1 Reply)
Discussion started by: Hitori
1 Replies
4. Solaris
Dear Experts,
i have a problem related to mmap(), when i run my program on sun for 64 bit which is throwing SIGBUS when it encounters mmap() function, what is the reason how to resolve this one, because it is working for 32 bit.
with regards,
vidya. (2 Replies)
Discussion started by: vin_pll
2 Replies
5. UNIX for Dummies Questions & Answers
how to use mmap() to map a file to memory space. Do you have any simple program???? Because I have to implement lot of concepts into it. (3 Replies)
Discussion started by: gokult
3 Replies
6. Homework & Coursework Questions
Descriptions:
Develop a program that uses mmap() to map a file to memory space. Prepare such a file by yourself and do the follows.
<LI class=MsoNormal>Display the content of the file after mapping; <LI class=MsoNormal>Output how many digits included in the file; <LI class=MsoNormal>Replace... (1 Reply)
Discussion started by: gokult
1 Replies
7. Programming
hai,
How do we map 'n' number of files into memory by using mmap system call??
Thanks in advance...... (5 Replies)
Discussion started by: andrew.paul
5 Replies
8. UNIX for Advanced & Expert Users
Hi
I want to lock or prevent a portion of memory which I allocated. So I tried MLOCK, MPROTECT and some like this. But all these functions works only on page border. Can I know why that so.
Is that possible to protect a portion of memory which is in middle of the page.
Example.
int A;
... (1 Reply)
Discussion started by: jionnet
1 Replies
9. Emergency UNIX and Linux Support
I want to know whether this is possile or ever been tried out.
I want to obtain a chuck of memory using mmap()
I do it so :
n = mmap(0, 8000, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
And hold on to that memory, when a process requests for memory, some memory is... (2 Replies)
Discussion started by: xerox
2 Replies
10. BSD
I'm new to kernels and C, and I am tinkering around trying to understand OpenBSD's secure memory management. I'm stumped on a couple points.
I've read up on malloc() which was apparently modified years ago to allocate memory using mmap. First question, that would be this here, right?
... (4 Replies)
Discussion started by: dcicc
4 Replies
LEARN ABOUT SUNOS
warn.conf
warn.conf(4) File Formats warn.conf(4)
NAME
warn.conf - Kerberos warning configuration file
SYNOPSIS
/etc/krb5/warn.conf
DESCRIPTION
The warn.conf file contains configuration information specifying how users will be warned by the ktkt_warnd daemon about ticket expiration
on a Kerberos client. Credential expiration warnings are sent, by means of syslog, to auth.notice. All other warning messages are sent to
daemon.notice.
Each Kerberos client host must have a warn.conf file in order for users on that host to get Kerberos warnings from the client. Entries in
the warn.conf file must have the following format:
principal syslog | terminal | mail time [email_address]
principal Specifies the principal name to be warned. The asterisk (*) wildcard can be used to specify groups of principals.
syslog Sends the warnings to the system's syslog. Depending on the /etc/syslog.conf file, syslog entries are written to the
/var/adm/messages file and/or displayed on the terminal.
terminal Sends the warnings to display on the terminal.
mail Sends the warnings as email to the address specified by email_address.
time Specifies how much time before the TGT expires when a warning should be sent. The default time value is seconds, but you
can specify h (hours) and m (minutes) after the number to specify other time values.
email_address Specifies the email address at which to send the warnings. This field must be specified only with the mail field.
EXAMPLES
Example 1: Specifying warnings
The following warn.conf entry
* syslog 5m
specifies that warnings will be sent to the syslog five minutes before the expiration of the TGT for all principals. The form of the mes-
sage is:
jdb@ACME.COM: your kerberos credentials expire in 5 minutes
FILES
/usr/lib/krb5/ktkt_warnd Kerberos warning daemon
SEE ALSO
ktkt_warnd(1M), syslog.conf(4), SEAM(5)
SunOS 5.10 22 Apr 2003 warn.conf(4)