Hey Ben, Salvatore. Thanks for cherry-picking the bug for unstable. AFAIU stretch and jessie[-backports] should be affected as well. Shouldn't it go there, too? At least at the upstream mailing list it was said[0] the the bug was introduced around October 2008, which should be roughly kernel 2.6.23. Cheers, Chris. [0] https://lore.kernel.org/linux-btrfs/CAL3q7H599_kDPDFHMRqSwNLXKtANC7aaqBe+Hm6JjpR37uS1Vg@mail.gmail.com/