10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
i created a script to look for the modified files in the last 15 minutes.
But later was told that the server that we need to implement this script is an MP-RAS (NCR Unix) server on which i found mmin option of the find command doesnt work.:wall:
Can anybody please let me know the... (1 Reply)
Discussion started by: utkarsh
2. IP Networking
I have an MP-RAS unix server from ncr. We are trying to get the network configured so that we may transer files between the unix box and a pc. I have used the included TCPCONFIG command to setup the network, however I can not ping, telnet or ftp to any other pcs on the network. Any help would... (0 Replies)
Discussion started by: Rutgerncas
3. UNIX for Dummies Questions & Answers
Here is the question. We have 2 identical boxes (see below), one is functioning as production second is being built as backup. Backup was
built by 'osa' restore (image taken from production). Problem is..the max filesize on production is 2147481600 bytes and the max filesize on backup... (0 Replies)
Discussion started by: dbamadness
I am getting the following error when I send mail to any domain say firstname.lastname@example.org
Not delivered to :due to 11 transfer failure
(mail: Error #22 'Surrogate command failed ', rc =11)
En Route to: xyz.com!abc123
:/user/bin/uux -username -xyz.com!rmail... (13 Replies)
Discussion started by: rush143
5. UNIX for Dummies Questions & Answers
Dear Administrators and Moderators,
Normally I use Windows for browsing net, but few days back my pc was affected with virus.
One of my friend suggested me to use Linux for safe browsing.
I would like to know
1. I have Mandrake 8.2(HDD) and Obuntu 9.x(CD) - which one is better (have limited... (1 Reply)
Discussion started by: kesari
6. UNIX for Advanced & Expert Users
I need to migrate the whole unix environment from a Unix mp-ras 32 bit to a Linux Suse 64 bit.
1) can i use cpio to copy the data?
2) can i just copy the users from unix to linux or do i have to create them by hand
3) are there any other concerns i should worry about?
thanx (1 Reply)
Discussion started by: mrodrig
7. UNIX for Dummies Questions & Answers
I would like to know if It's possible configure NFS on MP-RAS Unix so mountd uses a static port instead of a dynamic one.
Thanks. (1 Reply)
Discussion started by: cuatrodos
I recently compile some code in 32 bit mode on a AIX 5.3 server that has its kernal set to 64 bit mode. The compile was successful and the code works great. That being the case I use the model of the successful makefile on some other code but ended up getting errors that looked like this......
... (2 Replies)
Discussion started by: morrisey
9. Filesystems, Disks and Memory
Hi, I am new to the UNIX operating system and would realy appreciate some answers to these problems.
I have a unix box (Actually several of them throughout the different locations) that have NCR MP-RAS 3.02.x.x (with multiuser and possibly security packages installed.)
Originally they had 2gb... (4 Replies)
Discussion started by: ad7_98
10. UNIX for Dummies Questions & Answers
I've just inherited the support of 3 NCR Servers running NCR MP-RAS 3.02 UNIX OS and it looks as though the previous support analyst (who as left the company) has kindly changed all 3 root passwords. Also there are no installation / boot cd's and the etc/passwd directory can only be updated by... (1 Reply)
Discussion started by: Bruv
RAS(9) BSD Kernel Developer's Manual RAS(9)
ras_lookup, ras_fork, ras_purgeall -- restartable atomic sequences
ras_lookup(struct proc *p, void *addr);
ras_fork(struct proc *p1, struct proc *p2);
ras_purgeall(struct proc *p);
Restartable atomic sequences are user code sequences which are guaranteed to execute without preemption. This property is assured by check-
ing the set of restartable atomic sequences registered for a process during cpu_switchto(9). If a process is found to have been preempted
during a restartable sequence, then its execution is rolled-back to the start of the sequence by resetting its program counter saved in its
process control block (PCB).
The RAS functionality is provided by a combination of the machine-independent routines discussed in this page and a machine-dependent compo-
nent in cpu_switchto(9). A port which supports restartable atomic sequences will define __HAVE_RAS in <machine/types.h> for machine-indepen-
dent code to conditionally provide RAS support.
A complicated side-effect of restartable atomic sequences is their interaction with the machine-dependent ptrace(2) support. Specifically,
single-step traps and/or the emulation of single-stepping must carefully consider the effect on restartable atomic sequences. A general
solution is to ignore these traps or disable them within restartable atomic sequences.
The functions which operate on restartable atomic sequences are:
This function searches the registered restartable atomic sequences for process p which contain the user address addr. If the
address addr is found within a RAS, then the restart address of the RAS is returned, otherwise -1 is returned.
This function is used to copy all registered restartable atomic sequences for process p1 to process p2. It is primarily called from
fork1(9) when the sequences are inherited from the parent by the child.
This function is used to remove all registered restartable atomic sequences for process p. It is primarily used to remove all reg-
istered restartable atomic sequences for a process during exec(3) and by rasctl(2).
The RAS framework itself is implemented within the file sys/kern/kern_ras.c. Data structures and function prototypes for the framework are
located in <sys/ras.h>. Machine-dependent portions are implemented within cpu_switchto(9) in the machine-dependent file
rasctl(2), cpu_switchto(9), fork1(9)
Gregory McGarry, "An Implementation of User-level Restartable Atomic Sequences on the NetBSD Operating System", Proceedings of the FREENIX
Track: 2003 USENIX Annual Technical Conference, USENIX Association,
http://www.usenix.org/publications/library/proceedings/usenix03/tech/freenix03/full_papers/mcgarry/mcgarry.pdf, 311-322, June 9-14, 2003.
The RAS functionality first appeared in NetBSD 2.0.
April 17, 2010 BSD