Hi Filip,
Did you file an issue about this?
If not, could you open one with the details of the platform you're
experiencing the crash on and the steps to reproduce?
Thanks,
-Lionel
On 04/09/2020 11:37, Filip Strömbäck wrote:
Dear mesa-dev,
I recently updated my system, and it seems like Mesa is now using the
new iris driver for my Intel GPU (a Lenovo Thinkpad), which makes a
program I'm developing crash somewhere inside iris_dri.so (it is
drawing using the GLX backend in Cairo). Forcing the old i965 driver
with the environment variable solves the problem, which makes me
suspect a bug (or at least more strict behavior) in the new iris
driver compared to the old one.
Is this a known issue, or should I report it as a bug? It might as
well be the case that Cairo is misbehaving subtly, but that the
behavior was tolerated by the old i965 driver.
My short-term solution (which is perhaps better anyway) is to migrate
away from the experimental GL backend in Cairo, but as this could
indicate a bug in the iris driver I thought it might be interesting
for you to be aware of.
The program is available in compiled form here:
https://www.ida.liu.se/~TDDI16/2020/tutorials/trees.tar (I might
update it during the coming days to work around the bug). I can
provide both source and compiled binaries that reproduce the problem
more consistently if you wish to investigate further. The linked
program requires some interaction to crash, but crashes fairly
consistently.
With kind regards,
Filip Strömbäck
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