gchristensen changed the topic of #nixos-chat to: NixOS but much less topical || https://logs.nix.samueldr.com/nixos-chat
<elvishjerricco> Well crap. I opened my machine up to check if I had room to put back the removable drive bay, and when I booted it back up, it overheated. The fans are no longer speeding up under load.
<elvishjerricco> I did disconnect the fans to move the cooler, but they're definitely back the way they were before.
<elvishjerricco> (AIO cooler, so I disconnected the radiator, not the block)
<gchristensen> och
<elvishjerricco> Well, indiscriminately resetting the bios fixed it right up :P Lost my overclock though...
<elvishjerricco> Actually, it's still a lot worse than it was before, it's just a little under control now and no longer overheating. But that could just be because there's no overclock...
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<elvishjerricco> It's idling at 44C, and room is 20C...
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<sphalerite> elvishjerricco: I think that's a normal sort of temperature to idle at?
<sphalerite> elvishjerricco: I've just gone through all the machines I manage that are currently running I can think of, and they're all idling around 40°C.
<manveru> take a look at this cooling :) https://www.youtube.com/watch?v=Ol26CnNEZrU
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<elvishjerricco> sphalerite: Nah it used to idle at like 32C. And previously, I couldn't get it to go higher than 55C because my cooler is pretty ridiculous, but now it's push 75-80C
<sphalerite> huh
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<rain2> hello
<andi-> o/
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<elvishjerricco> Is it just me, or is ZFS's new encryption feature kinda leaky? File size and dedup tables are both unencrypted. Dedup tables are especially concerning, since they should inform an attacker of the sha256 of each block's decrypted contents. Obviously that doesn't give anything away immediately, but if any of those sha256's are well known, that can leak a lot of information.
<ivan> heh, leaking file sizes is terrible, does it leak the exact size?
<joepie91> possibly that just wasn't a part of its threat model? this is fairly common for encrypted storage systems afaik
<joepie91> object storage anyway, which ZFS sorta counts as
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<infinisil> elvishjerricco: For the dedup tables: the hashes might be salted
<elvishjerricco> infinisil: I hope
<elvishjerricco> But yea leaking file sizes is bad
<infinisil> "Leaks the info that the blocks are the same" from https://dqtpg127g2l9y.cloudfront.net/wp-content/uploads/2017/01/zfs-encryption-nov-2016.pdf
<infinisil> So it only leaks which blocks are the same, but the data itself is fully encrypted with salts and everything