[Bug 83564] [ilk] Batch buffer corruption

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=83564

--- Comment #5 from Chris Wilson <chris at chris-wilson.co.uk> ---
(In reply to comment #4)
> OK, the sources were actually in xserver-xorg-video-intel (not xf86-).

As you doing so well, you could actually use the upstream code:

http://cgit.freedesktop.org/xorg/driver/xf86-video-intel/

(more bug fixes, more debugging code)


> Results:
> - No output on the GDB console.
> - Same or similar error messages in /var/log/syslog (I saved syslog and the
> new crash dump, I can post them here if needed).
> - after 30-40 seconds I get "*ERROR* context hanging too fast, declaring
> banned!" in the system log and the GUI seems to come back to life, but not
> really working.
> 
> Anyway, at least I have the sources compiling and I can take a stab at
> getting familiar with them. I will also get the Linux kernel source and see
> if I can add some printk()s to see on which exact commands from userland
> trigger the errors. If you have any better ideas, let me know.

Don't worry about instrumenting the kernel, it is already providing you with
enough information to incriminate userspace...

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