Am 05.02.19 um 18:40 schrieb Michel Dänzer:
On 2019-02-05 4:45 p.m., Christian König wrote:
Possible, but unlikely.
That sounds more like a reference counting problem where something is
killing the BO while it is still on the LRU.
FWIW, I've hit this twice now today, whereas I don't remember ever
hitting it before (not 100% sure though).
I reverted the remaining hunk of the "cleanup setting bulk_movable"
change, and it survived a piglit run. Could just be luck, though...
Did you have KASAN enabled?
The only possible explanation I have is that we either somehow corrupt
the counter or try to free a BO twice. Both should be recognized
immediately by KASAN.
Christian.
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