[Webkit-unassigned] [Bug 22033] [GTK] CTI/Linux r38064 crashes when loading google

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=22033





------- Comment #12 from alp at nuanti.com  2008-11-04 06:00 PDT -------
(In reply to comment #9)
> (In reply to comment #8)
> > Use PROT_EXEC to fix JIT crash on Fedora
> > This patch gets the JIT working on Fedora with ExecShield/NX enabled.
> > It'd be helpful if you could confirm that this works for you, but please don't
> > ship it/package it just yet (I'm going to see if we can do this in a slightly
> > better way).
> 
> Patch is working for me on Fedora 9 - kernel-2.6.26.6-49.fc8PAE / Intel(R)
> Xeon(R) CPU using Webkit-r38068
> 
> But, without patch, "sysctl -w kernel.exec-shield=0" doesn't help.
> 

Without knowing much about the Fedora setup, it looks like your hardware (Xeon)
supports genuine NX so even when you disable software exec-shield, the CPU
security functionality is still active. I've been testing on a plain old x86 VM
so kernel.exec-shield=0 was enough for me to track down the issue.


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