Linux X86/x86 _ 64 Will Now Always Reserve the First 1MB of RAM – Slashdot


AmiMoJo shares a report from Phoronix: The Linux x86/x86 _ 64 kernel code currently had reasoning in location for scheduling parts of the very first 1MB of RAM to prevent the BIOS or kernel possibly clobbering that area to name a few factors while now Linux 5.13 is getting rid of that ‘wankery’ and will simplyunconditionally always reserve the first 1MB of RAM The Linux kernel was currently accommodating Intel Sandy Bridge graphics accessing memory listed below the 1MB mark, the very first 64K of memory are understood to be damaged by some BIOSes, and comparable issues turning up because low location of memory. But instead of handling all that reasoning and other possible specific niche cases besides the EGA/VGA frame-buffer and BIOS, the kernel is playing it safe and simply constantly scheduling the very first 1MB of RAM so it will not get clobbered by the kernel.

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