[Bug 91467] SIGSEGV "get_fb: failed to add fb" / sna_block_handler

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91467

--- Comment #10 from Chris Wilson <chris at chris-wilson.co.uk> ---
Hmm, that implies a use-after-free -- which goes some way to explain the other
failures.

Do you mind trying to capture a new debug=full log with 

commit c7d0acf78521d90cfbf087bff108d7c3807a79d2
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Sun Jul 26 16:46:03 2015 +0100

    sna: Add a DBG trace to reusing pixmap headers

I need to start finding who grabbed a reference to the pixmap after it was
freed.

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