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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RE[4]: WTF IS THIS SHIT
by lucas_maximus on Mon 2nd Jul 2012 21:10 UTC in reply to "RE[3]: WTF IS THIS SHIT"
lucas_maximus
Member since:
2009-08-18

I dunno maybe I think it is better to fix the root cause of the problem then to make a barcode and then use that as a debugging tool.

Just Saying.

Reply Parent Score: -2

RE[5]: WTF IS THIS SHIT
by merkoth on Tue 3rd Jul 2012 00:17 in reply to "RE[4]: WTF IS THIS SHIT"
merkoth Member since:
2006-09-22

This doesn't even make any sense, are you serious or just trolling? Do you asume that every kernel panic will happen on the developer's system so he can fix it right away?

Reply Parent Score: 4

RE[5]: WTF IS THIS SHIT
by phoudoin on Tue 3rd Jul 2012 09:33 in reply to "RE[4]: WTF IS THIS SHIT"
phoudoin Member since:
2006-06-09

I dunno maybe I think it is better to fix the root cause of the problem then to make a barcode and then use that as a debugging tool.

Just Saying.


That's chicken and egg: how do you fix the root cause of most kernel panic in an OS without having solid crash reports in the first place?!

Promise, when Haiku kernel will be rock solid, we'll remove the qrcode feature and use instead a disk log writer. Happy?

BTW, why keeping a kernel disk log writer if your kernel don't panic anymore at all? Why instead of making Windows BSDO multi-langugage aware Microsoft don't fix the root cause of these BSODs in the first place?

Simple answer: because kernel developers needs it.
Period.
Now please, let's move on.

Reply Parent Score: 3

RE[6]: WTF IS THIS SHIT
by zima on Fri 6th Jul 2012 02:14 in reply to "RE[5]: WTF IS THIS SHIT"
zima Member since:
2005-07-06

Promise, when Haiku kernel will be rock solid, we'll remove the qrcode feature and use instead a disk log writer. Happy?

Please don't remove it (looks like you're involved?), I think it's great / brilliant / cute, an awesome idea... maybe even all informational popups etc. should have qrcode?


Though, I can see one downside - unpleasant shudder when seeing some random large QR code somewhere. ;)
(kinda like my buddy used Windows error sound for SMS arrival, which made some people in public transport visibly disturbed, a bit)

Now I also wonder if QR code (~animation?...) could be extended to quickly transfer smallish amounts of data; I imagine it could possibly often be more immediately intuitive than bluetooth or wifi.

Edited 2012-07-06 02:19 UTC

Reply Parent Score: 2