[Pixman] [cairo] Pixman concurrency problem on iOS/ARM

[cu]

I have temporarily turned off NEON optimizations (strangely, they only
amounted to about 5% of rendering time
in this specific case).
I plan to build a test case as soon as time permits.

It does seem to break on the same address (or at least same instruction
content), I'll try to get that next time as well.


Siarhei Siamashka wrote:
> It would help if you could reduce the testcase to a small program
> which can still reproduce the problem reliably. And try whatever
> debugging tools are available on iOS to get the exact address of the
> crash, stack backtrace, disassembly listing and the values in
> registers at the time of the crash. The more information, the better.
>
> This could be just anything ranging from a slight ABI incompatibility
> to bugs in OS kernel or hardware errata. It's hard to make any guesses
> without additional information.
>
>