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The swap subsystem is where anonymous pages (those containing program data not backed by files in the filesystem) go when memory pressure forces them out of RAM. A widely held view says that swapping is almost always bad news; by […]
If you want to quickly save a file through http but you don’t want to install a web server, you can just use netcat. You can run: index.html can be any file you want to serve it. You can access […]
Execution in Assembly Entry point for Kernel uncompressed – arch/arm/kernel/head.S Read processor ID in coprocessor and obtain proc_info_list pointer Lookup machine type based on mach-id passed by bootloader (R1), get the mach_desc pointer and save mach-id Determine vailidity of ATAGS […]
Mapped memory permits different processes to communicate via a shared file. To map an ordinary file to a process’s memory, use the mmap (“Memory MAPped,” pronounced “em-map”) call. The first argument is the address at which you would like Linux to map the […]