On 14/05/2018 12:29, Burakov, Anatoly wrote:
[..]

This failure is not caused by this patchset, and you should get similar
failures on master if you get these while testing my patchset. I am not
able to reproduce this issue, but i'll double-check the bounded reserve
code with a fine-toothed comb anyway.

I reliably get the failure with V3 applied to RC2, but so far haven't 
been able to replicate with any other combination (clean RC2, RC2+V5, 
master+V4, etc). Odd..