Re: Common mistakes in writing signal handler, or fault handler

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Mulyadi Santosa wrote:
On Sun, Jul 27, 2008 at 9:29 AM, Peter Teoh <htmldeveloper@xxxxxxxxx> wrote:
  
Just want to share this.

First, at:

http://tuxology.net/lectures/crash-and-burn-writing-linux-application-fault-handlers/

At page 6, is the common practise of capturing the stacktrace,
whenever error occurred.   But this is actually wrong, and will give
rise to race condition.
    

Damn, Gilad moves faster than me! Actually, I was experimenting with
relatively same thing...but my original goal is to show to newbies how
Xen/KVM/etc intercept memory access and redirect the accessor to
another address. The work is incomplete though...

regards,

Mulyadi.
  
You mean like the stack piercing attack for Windows callbacks in the messaging subsystem?
...
That is quite possibly the geekiest thing I've ever written... I'm not sure if I should feel good or bad about that ;)


Anyways, are you working on it with libvert?  I've been geeking out over that and I'm hoping to get something going on the dual quad core xeons at work ;)  Unfortunately, it only has 2 GB RAM since FB-DIMMs are still expensive.

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