9 More Discussions You Might Find Interesting
I use a binary name (ie polo) it gets some parameter , so for debugging normally i do this :
i wrote script for watchdog my app (polo) and check every second if it's not running then start it , the problem is , if my app , remain in state of segmentation fault for a while (ie 15 ... (6 Replies)
Discussion started by: pooyair
2. Shell Programming and Scripting
If there is an expert that can help:
I have many txt files that are produced from pdftotext that include page breaks the page breaks seem to be unix style hex 0C.
I want to add page numbers before each page break as in : Page XXXX
Regards antman (9 Replies)
Discussion started by: antman
3. Shell Programming and Scripting
I have a pdf file that is being generated using the rwrun command in the shell script.
I then have the lp command in the shell script to print the same pdf file.
Suppose there are 4 pages in the pdf file , I need to print 2 copies of the first page, 2 copies of the second page , then 2... (7 Replies)
Discussion started by: megha2525
4. Web Development
Is there a way to calculate the page load time, I am trying to calculate the load time of a page locally. I found tools to do this over http or https but none that work locally.
Thanks. (4 Replies)
Discussion started by: jamie_123
5. UNIX for Dummies Questions & Answers
This question might be silly but its confusing me a bit:
What is the difference between handle to the thread HANDLE and thread identifier pthread_t?
---------- Post updated at 01:52 PM ---------- Previous update was at 01:48 PM ----------
Sorry I saw details and HANDLE is in windows and... (0 Replies)
Discussion started by: rupeshkp728
6. UNIX for Dummies Questions & Answers
I am not sure where to post this so i will put it in the newbie section.
I have set up a bog standard debain 6, LAMP environment in the cloud.
1 core at 2GH
running Jommla, with about 1.6K visitors a day.
I am using AppFirst (appfirst.com) to monitor the... (2 Replies)
Discussion started by: waseem
7. UNIX for Advanced & Expert Users
I have a query (Don't know whether its the right folder to ask)
What happens when page fault happens in Kernel ..(as the kernel mode is non-preemptive)...
Thanks in advance (2 Replies)
Discussion started by: yash0101
We are running SUN sparc 5.8, notice frequent "Page Faults" message from our monitor s/w "ServerVantage" coming but no message display in SUN syslog or messages log. Any ideas why or what to check?
Ahmad (2 Replies)
Discussion started by: Ahmad
What causes 'page data fault' or 'data memory protection fault' under HP-UX 11. The server crashes and the shutdownlog reports the above error. For your info, Oracle 8i is running .
Appreciate your fast response,
:confused: (2 Replies)
Discussion started by: wobitu
mem(7D) Devices mem(7D)
mem, kmem, allkmem - physical or virtual memory access
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).
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 spe-
ENXIO Results from attempting to mmap(2) a non-existent physical (mem) or virtual (kmem, allkmem) memory address.
/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
/dev/allkmem Provides access to the virtual address space of the operating system kernel, including memory that is associated with an
llseek(2), mmap(2), read(2), write(2)
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
SunOS 5.10 18 Feb 2002 mem(7D)