https://bugs.freedesktop.org/show_bug.cgi?id=106473
--- Comment #2 from Matt Whitlock freedesktop@mattwhitlock.name --- (In reply to Michel Dänzer from comment #1)
Does https://cgit.freedesktop.org/mesa/mesa/commit/ ?id=6f81e07ecb8c0793dc482307d5d96fd3df95b7d2 help?
I've applied this patch and rebuilt Mesa. I'll reply again soon as to whether I see the crash recur.