Linked by Thom Holwerda on Mon 2nd Jul 2012 18:19 UTC, submitted by anonymous
BeOS & Derivatives Michael Lotz added code to generate QR-code for the KDL (Kernel Debug Land) ouput (which pops up when the kernel crashes). No more blurry photos with debug output, but a QR code which decodes to the clear-text KDL debug output. Here's one of the relevant commits, an example showing a QR code, and text from decoded sample QR code.
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by anevilyak on Mon 2nd Jul 2012 19:18 UTC in reply to "WTF IS THIS SHIT"
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Relax, would you? It's simply an alternative way to get the information out of the kernel debugger in order to be able to copy it into bug reports. Since most modern systems don't have serial ports any more, it can't be captured that way, and photographs of a computer monitor are large, unwieldy and can be a pain to get focused properly without cutting off important bits of information.

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