Hector Martin on Twitter: "Those mmc1 lines are from the SDHCI driver, not the wifi driver. They will show up before the wifi driver is loaded. They will appear even if you successfully disabled the latter. I'm not sure what kernel you're using, but on mine sdhci is built-in.… https://t.co/4SNNoFP16Z"

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Hector Martin‏ @marcan42 12 Jun 2018

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Replying to @dragosr @AndreaBarisani and

All of them have mmc1, you idiot. The Raspberry Pi 3 B has built-in WiFi. *SDIO* WiFi. How do you think it connects to the SoC, magic pixie dust?pic.twitter.com/buAT7zvlIH

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Hector Martin‏ @marcan42 12 Jun 2018

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Replying to @marcan42 @dragosr and

Seriously, you have *no excuse* for this stuff. The moment you saw "mmc1" you should've looked at sysfs to find out what that is used for, or the device tree to figure out how it's configured. This is just shoddy research. https://github.com/raspberrypi/linux/blob/rpi-4.14.y/arch/arm/boot/dts/bcm2837-rpi-3-b.dts …

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dragosr‏ @dragosr 12 Jun 2018

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Replying to @marcan42 @AndreaBarisani and

Don't care what it's used for there, as long as adversary has multiple control links in (probably multiple operators). Static thinking again. A few lines of code and dev will deploy other use in 15 minutes. Analysis needs to wait for control neutralization/isolation.

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Hector Martin‏ @marcan42 12 Jun 2018

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Replying to @dragosr @AndreaBarisani and

You said "How many of your raspis have an mmc1?" and I explained to you how the answer is ALL OF THEM (of this model). Are you going to ever admit you confused something completely benign for an IOC, or just keep bullshitting forever?

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dragosr‏ @dragosr 12 Jun 2018

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Replying to @marcan42 @AndreaBarisani and

Look at some raspi boot dmesgs and you will get what I'm talking about. I do that so often I can sometimes pick out lines that are wierd as it scrolls by even. Please stop being patronizing. Maybe these folks are already on your some of your computers. Would you know?

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Hector Martin‏ @marcan42 12 Jun 2018

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Replying to @dragosr @AndreaBarisani and

I'm still waiting for a single piece of verifiable evidence that something is out of place. Where are these "weird" boot logs? Perhaps you should start considering that if everyone else can find a benign explanation for everything you point out, maybe the problem is in your head.

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dragosr‏ @dragosr 13 Jun 2018

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Replying to @marcan42 @AndreaBarisani and

dragosr Retweeted dragosr

https://twitter.com/dragosr/status/1006401154845065216?s=21 …

dragosr added,

dragosr @dragosr

The same Raspi a few boots earlier but with less funny scope signals, with only mmc0 as normal. Yes, the MTP device stuff is not regular stock Rasbian either. This system card was a fresh install. pic.twitter.com/Ajr9u6Pk5K

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Hector Martin‏ @marcan42 13 Jun 2018

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Replying to @dragosr @AndreaBarisani and

The only thing that tells me is your WiFi module is not working on the second boot. Haven't you been cutting off stuff from the boards? Broken hardware is not an IOC. The first boot is normal, those mmc1 lines are exactly what is expected of a Pi 3 B.

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dragosr‏ @dragosr 13 Jun 2018

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Replying to @marcan42 @AndreaBarisani and

The same hardware (untouched stock raspi3) in all those photos and boot-logs. Those mmc1 lines do _not_ show up on earlier boots of the same raspi. As shown in the other photo.

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dragosr‏ @dragosr 13 Jun 2018

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Replying to @dragosr @marcan42 and

So it didn’t break. It started working :-). I’d have to check but on some installs I remove some kernel drivers (sometimes all networking and sound hardware). What could be happening here is the driver has been re-enabled. You probably don’t consider that an IOC either. :-)

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Hector Martin‏ @marcan42 13 Jun 2018

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Replying to @dragosr @AndreaBarisani and

Those mmc1 lines are from the SDHCI driver, not the wifi driver. They will show up before the wifi driver is loaded. They will appear even if you successfully disabled the latter. I'm not sure what kernel you're using, but on mine sdhci is built-in.

8:15 PM - 13 Jun 2018

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1. dragosr‏ @dragosr 14 Jun 2018
  
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  This is stock retail raspbian. Nothing added except bridging and hostapd. Some packages removed - basically anything to do with sound or network file systems and remote access. And some of the bloatier stuff like minecraft, node-red, Wolfram Alpha.
  
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