Created attachment 144762 [details] Stack trace of the crash, from coredumpd. Attached is a partial stack trace generated from Mesa 4a4b48fb057, on ArchLinux using Weston master and Iris.
This crash seems to have been fixed between 4a4b48fb057 and 5e38db0c47ca57c6e904f44d0d0e9ef299d14f3c, closing as fixed.
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