Sachi

OpenStack, OSS, LCA2018
@[email protected]

[Sachi @nakatoio]

@BNBuzz I need a security contact for your website.

[Sachi @nakatoio]

@developerjack Doesn't that usually mean boxed, labelled, and ready for pickup?
My recent experience seems to suggest AusPost is absolutely slammed right now.

[Sachi @nakatoio]

Tales from the trenches: Oh, yea, there's a custom curl binary in my home directory, and a LD_PRELOAD_PATH you need to use with it, you'll want to use that. No, I don't remember how I built it.

[Sachi @nakatoio]

Writing some x86 assembly is not exactly what I thought would be included in my workday today, but here we are now. I now have just enough to boot a VM and immediately turn it off to detect if an environment is broken in 10ms or less, instead of waiting an hour to notice it froze

[Sachi @nakatoio]

@SamsungAU I ordered a device April 1, it was supposed to be delivered April 6, and I've spent the last 3 weeks trying to get it delivered. I'm told it will be shipped and then nothing happens.

[Sachi @nakatoio]

@aevavoom Do serious looking birds count? I took this today and it's probably the first time I've got one of these little speed demons not sitting still while also not being a green blur.

[Sachi @nakatoio]

Oh! Hey! These pixels make sense now! This may be a naive approach to rendering the contents of a Bayer CFA, but that's not the interesting part, the interesting part is the data is in a SOF3 "Lossless" JPEG, marked as CYMK, and 512x512. The data within isn't even close to that.

[Sachi @nakatoio]

I started poking at a TIFF, and turns out it's JPEG all the way down.

140 of them are 0xc3, which is some obscure lossless version that's not well supported, and they're 14bit, so this is going to be fun.

I'm pretty sure I can find some 12bit ones too, which shouldn't exist?

[Sachi @nakatoio]

@tacticalmaid I removed most of that kit as it's no longer less painful than the alternatives. I've got a DFRobot CM4 "IoT Router" replacing the USG running Linux, OpenWRT with 802.11r configured on the APs (not sure what to replace with yet), no cloud key, and I manage the switch via CLI.

[Sachi @nakatoio]

It's dead, Jim.
Short to ground in the CPU.

[Sachi @nakatoio]

Network's been acting up the last day or so...
MMC_RX_CRC_ERRORS. Now that's a sad, because it's my stopgap "I don't know what AP I actually want to buy" device.

The interesting part, I can drop hundreds of packets packets per minute, and the usual counters only maybe increment.

[Sachi @nakatoio]

@warkolm Geoblocking has gone insane, I've run into government websites where I have to use <insert VPN provider name here> to access them...

[Sachi @nakatoio]

My Surface Laptop 4, AMDs, first wake-up without an external device!

[Sachi @nakatoio]

I set out on Sunday to read my desktops fan speeds from a UEFI application. UEFI was the easy part thanks to the UEFI crate. Taking a datasheet and poking bytes out of it, well, that was the hard part, but also fun. It's pretty exciting when the 15th time down the page it clicks.

[Sachi @nakatoio]

I saw a kookaburra for the first time ever today! I even managed a photo!

[Sachi @nakatoio]

If it's not grounded, why is there a ground pin?

[Sachi @nakatoio]

Does anyone have any pointers who to reach out to at Microsoft about a potential bug in the SL4 firmware breaking PIC initialization on Linux?

[Sachi @nakatoio]

That moment when you accidentally short feedback to ground on a voltage regulator and it's accompanied by a spark. We'll see if I can't repair it, but for now... He's dead, Jim.

[Sachi @nakatoio]

And finally we get to the anticlimactic end of... a system that boots. I honestly have touched enough SPI flash chips that the majority of this was boring, but doing this with something not old/cheap was a bit nerve-wracking.

[Sachi @nakatoio]

Got my Ryzen 5900x today along with a motherboard that listed its validated firmware support as a fairly old version, so reasonable enough to say the mobo would ship with something newer (it did). Well, turns out I did need a newer firmware still, bad ASUS. So here we go...