08-20-2009
Moved to more appropriate forum ( not a dummy's question...)
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I was in smit, checking on disc space, etc. and it appears that one of our physical volumes that is part of a large volume group, has no free physical partitions. The server is running AIX 5.1. What would be the advisable step to take in this instance? (9 Replies)
Discussion started by: markper
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2. AIX
Hi all
I need command to give logical and physical IP Address for my machine.
thank you (1 Reply)
Discussion started by: magasem
1 Replies
3. Solaris
Hi,
I need help to add new route:
10.252.0.138, GW 10.252.0.129 to e1000g1
and
10.252.0.10, GW 10.252.0.1 to e1000g2
tnx (4 Replies)
Discussion started by: mehrdad68
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4. Programming
Program received signal SIGSEGV, Segmentation fault
si_code: 1 - SEGV_MAPERR - Address not mapped to object.
0x9fffffffbe7080d0:0 in free+0xb0 () from /usr/lib/hpux64/libc.so.1
Hi ,
I have developed a class to read config file (flat file with space as a field seperator ) on plattform... (3 Replies)
Discussion started by: pravinbhingare
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5. UNIX for Dummies Questions & Answers
I am new to PHP and UNIX. I am using Apache to do my testing on a Windows Vista machine.
I am getting this error when I am trying to connect to a web service. I did a search and did not see any posts that pertain to this.
Here is my function:
<?php
function TRECSend($a, $b, $c, $d,... (0 Replies)
Discussion started by: EddiRae
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6. AIX
Hello
How do I deternine the physical location of an ethernet port, based on the hardware address?
I have 4 ports on a 9133-55A
ent0 05-08
ent1 05-09
ent2 07-08
ent3 07-09
Two of these are internal, and two are on a card. I need to single out ent0 and ent2, but I cannot find any... (4 Replies)
Discussion started by: mhenryj
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7. AIX
Hello All,
Can anybody please tell me what is the maximum limit of Physical IBM Power Machine which can be handled by single HMC at a single point of time?
Thanks,
Jenish (1 Reply)
Discussion started by: jenish_shah
1 Replies
8. UNIX for Dummies Questions & Answers
Hi guys,
I got one problem which I definetily no idea.
What would the physical address be for virtual address?
1) 2ABC
2) 3F4B
Here is the page table:see attached
Thank you sos sososososso much!! (0 Replies)
Discussion started by: lemon_06
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9. Shell Programming and Scripting
Is it possible to use an object code compiled on Unix- sun Os sparc on Redhat linux OS. In our new application we have to create object file on Unix os and then use the object code on Linux OS to compile pro*c code but when we are trying to achieve this we get error: file in wrong format. how can... (3 Replies)
Discussion started by: vivek chaudhary
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10. UNIX for Beginners Questions & Answers
How would I write a value to a physical memory address?
I was able to read a physical memory address (for example, 0x400) using this line:
dd if=/dev/mem count=4 bs=1 skip=$(( 0x400 ))
But I get an error:
dd: 'standard input': cannot skip to specified offset
when I try to write using... (1 Reply)
Discussion started by: rabrandt
1 Replies
LEARN ABOUT OPENSOLARIS
kmem
mem(7D) Devices mem(7D)
NAME
mem, kmem, allkmem - physical or virtual memory access
SYNOPSIS
/dev/mem
/dev/kmem
/dev/allkmem
DESCRIPTION
The file /dev/mem is a special file that provides access to the physical memory of the computer.
The file /dev/kmem is a special file that provides access to the virtual address space of the operating system kernel, excluding memory
that is associated with an I/O device.
The file /dev/allkmem is a special file that provides access to the virtual address space of the operating system kernel, including memory
that is associated with an I/O device. You can use any of these devices to examine and modify the system.
Byte addresses in /dev/mem are interpreted as physical memory addresses. Byte addresses in /dev/kmem and /dev/allkmem are interpreted as
kernel virtual memory addresses. A reference to a non-existent location returns an error. See ERRORS for more information.
The file /dev/mem accesses physical memory; the size of the file is equal to the amount of physical memory in the computer. This size may
be larger than 4GB on a system running the 32-bit operating environment. In this case, you can access memory beyond 4GB using a series of
read(2) and write(2) calls, a pread64() or pwrite64() call, or a combination of llseek(2) and read(2) or write(2).
ERRORS
EFAULT Occurs when trying to write(2) a read-only location (allkmem), read(2) a write-only location (allkmem), or read(2) or write(2) a
non-existent or unimplemented location (mem, kmem, allkmem).
EIO Occurs when trying to read(2) or write(2) a memory location that is associated with an I/O device using the /dev/kmem special
file.
ENXIO Results from attempting to mmap(2) a non-existent physical (mem) or virtual (kmem, allkmem) memory address.
FILES
/dev/mem Provides access to the computer's physical memory.
/dev/kmem Provides access to the virtual address space of the operating system kernel, excluding memory that is associated with an
I/O device.
/dev/allkmem Provides access to the virtual address space of the operating system kernel, including memory that is associated with an
I/O device.
SEE ALSO
llseek(2), mmap(2), read(2), write(2)
WARNINGS
Using these devices to modify (that is, write to) the address space of a live running operating system or to modify the state of a
hardware device is extremely dangerous and may result in a system panic if kernel data structures are damaged or if device state is
changed.
SunOS 5.11 18 Feb 2002 mem(7D)