Just in case you need to keep your eclipses straight (original emoji joke credit to astronomer Katie Mack):
Solar eclipse: π π βοΈ
Lunar eclipse: π π βοΈ
Apocalypse: π βοΈ π
LB: this is *fucking nuts*.
on certain AMD CPUs you can just poke a random MMIO address from ring 0 and change the memory controller's scrambling pattern, on a live system, which completely jumbles the mapping between physical addresses and DRAM IC coordinates. since all memory protection features (IOMMU, SMM boundaries, etc.) are based on physical addresses, it bypasses *all of them*. you can read AND WRITE the SMM, fTPM, and even the C6 microcode save regions. wild.
I wish all USB cables were labeled like this!!!
(Elecom brand, if anyone's wondering)
reminder: all those 'homemade hacks' for looking at an eclipse (looking through CDs, sunglasses, etc.) are going to damage your eyes permanently, and you won't notice until much later. they do not work.
you have exactly three valid options:
- look through certified eclipse glasses from a known-good manufacturer for <30s at a time at most
- go to your local observatory, they probably have equipment set up to do this safely
- project the eclipse on the ground using small holes but DO NOT look at the eclipse directly, also not through small holes
anything else will leave you with eye damage for the rest of your life. you do not want eye damage.
You'd expect that they skip certain numbers when numbering their vehicles, but apparently they don't�
Quoth the Raven, "Be careful with that cable, it's carrying 48 volts"
-- Edgar Allan PoE