Weekly Edition
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Quotes of the week
In particular, block forking is a new and untried technique for
kernel, and far more difficult than user space because of multiple
blocks in different, asynchronously changing states sharing the
same underlying data page. We have to rip the data page out from
underneath a bunch of buffers and slip in a new one without any of
them noticing. Kind of like the trick where you pull the table
cloth out from underneath the dinner plates, so fast that nothing
crashes to the floor. Except that we also have to copy the table
cloth and slip the copy back underneath the dinnerware before it
settles back onto the table.
-- Daniel Phillips - filesystems really are
tricky code.
As usual, git is actually smarter and get things more correct than
people realize. What you found "surprising" is actually a "profound
truth". Git is like a great indian mystic. It sees past the veil
of the trivial, to find the true connections in life.
-- Linus Torvalds (Thanks to Nicolas Pitre)
Or at least in source code.
As far as I'm concerned, digital cameras have been more useful than
kernel dumps to kernel debugging.
-- Linus Torvalds
We've long needed a filesystem named after a vegetable.
-- Andrew Morton
Linus is going to take a wholesale conversion of mutexes to
adaptive mutexes? He's gone soft. I put on my asbestos underwear
for no reason, then.
-- Nick Piggin(Log in to post comments)
Digital Cameras... Posted Jan 15, 2009 9:51 UTC (Thu) by niner (subscriber, #26151) [Link]
I had to laugh reading that, remembering looking around at the company to find a digital
camera with which I could capture that kernel OOPS before hitting reset...
Digital Cameras... Posted Jan 15, 2009 15:07 UTC (Thu) by abatters (✭ supporter ✭, #6932) [Link]
Yes, but many oopses annoyingly scroll off the top of the screen, even when using 80x50 text mode. I find serial cables to be much more useful for capturing oopses. For systems without a serial port, maybe we can try the patch for Morse code panics (http://lwn.net/Articles/314507/) and a camcorder.
Quotes of the week Posted Feb 5, 2009 1:42 UTC (Thu) by csamuel (✭ supporter ✭, #2624) [Link] I like Ingo's comment from the btrfs list:I caught a "oops+triple-fault" crash via that trick once, which was not serial-console capture-able and which was just a single frame in the 25 fps video of the incident.( |
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