The strange case of ICMP Type 69 on Linux(blog.benjojo.co.uk)
blog.benjojo.co.uk
The strange case of ICMP Type 69 on Linux
https://blog.benjojo.co.uk/post/linux-icmp-type-69
4 comments
The corresponding kernel patch appears to be at http://lkml.iu.edu/hypermail/linux/kernel/1510.1/02365.html .
And some interesting replies showing that this tiny patch is unsafe: http://lkml.iu.edu/hypermail/linux/kernel/1510.1/02374.html
(more by following Next in thread links)
His patch after review is linked in the last line of the article:
https://lkml.org/lkml/2015/10/12/427
https://lkml.org/lkml/2015/10/12/427
Wow. I'd had to search LKML to find the patch, and I wondered why the article didn't seem to have a link. Turns out the article's CSS makes the link almost completely indistinguishable from regular text. Text uses dark grey (#3a3a3a), and links use black (#000000), with no decoration either.
I wonder if using systemtap could have found the problematic code quicker? (I've used stap a bit, but I'm not over-familiar with it, so genuine question)
Wow, nice bit of troubleshooting!