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Where's the memory?

That once again points out the danger of assuming you know what's going on based upon your knowledge of other systems. Being an expert at Solaris is helpful with Linux but it can also lead you astray. The opposite is just as true, of course.

Title Last Comment
How to trouble-shoot file corruption  
- If you don't have the space, you have to take running snapshots with fuser or lsof- that may not satisfy a very stubborn vendor who is convinced that *their* programs never screw up. -

Adding Memory  
- Adding RAM to your computer - how-to and pictures. Nowadays we need more and more RAM. If you have Windows boxes, you know that 512MB is becoming bare minimum, the same is true for Macs and although Linux can get by with less, more is better.. -

Where's the memory?  
- Memory usage under Linux is full of surprises. Do not assume you know what's going on based upon your knowledge of other systems. -

Memory leaks  
- I don't do any C programming any more, but I certainly remember that tracking down memory allocation problems was a large part of my debugging work. Obviously I'm not the only one who makes such programming errors; a Google search in that area will turn up all kinds of tools and debuggers to help track these things down. -

bootlocore : out of low memory  
- bootlocore : out of low memory SCO Unix No memory for relocation information -

A Nonvolatile Memory Overview   2012/05/28 TonyLawrence
- This paper presents a basic nonvolatile memory (NVM) overview. Section I begins with the introduction including a brief background of NVM's and the common terms used in the memory industry. The description and explanation of how an NVM is programmed (adding electrons) using hot-carrier injection is covered in section II. Section III covers the erasing or removing of electrons from floating gates of NVM's. A brief mechanism of Fowler-Nordheim tunneling is covered. Section IV introduces the model that can be used to predict the NVM programming characteristics. The hot-carrier injection model addressed is the "Lucky Electron" model. Section V covers the reliability aspects of NVM's. The common reliability issues an NVM encounters are the data retention, endurance, and disturbs. -

- Under normal conditions, one Unix process has absolutely no access to another's memory. However, sometimes it can be helpful (for reasons of speed, usually) to be able to read or write a shared memory area. Therefore, Unix and Linux systems provide system calls to setup and use such areas. -

Adding Memory  
- Adding Memory to SCO Unix, tuning NBUF and NHBUF to use that RAM -

showmem- shows contents of memory pages  
- Unix Programs: showmem script dumps memory from /dev/mem to show contents of dual ported ram -

allocb failed NSTRPAGES exceeded streams memory netstat -m-->Re I can't find something!  
- You are running out of streams memory- run "netstat -m"- you'll likely see non-zero amounts in the Failures column. -

(SCO Unix)My system is slow or hangs when sizing memory  
- This is an old article about memory caching on SCO Unix and is only left here for historical purposes. -

(SCO Unix)I have a system memory dump in my swap space; how do I delete it?  
- (Old SCO Unix) My sysyem had a Panic crash and now I have a system memory dump in my swap space; how do I delete it? -

linux out of vm virtual memory -->Re VM Killing process....  
- To survive this, the kernel goes into lifesaver mode and begins "reaping" processes somewhat randomly in order to free memory so that it won't crash. (I think the only process safe from reaping is probably init). 0 -

linux vm virtual memory -->Re UVM virtual memory algorithm  
- linux vm virtual memory -->Re: UVM virtual memoryalgorithm -

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