From: Tang Junhui <tang.junhui@xxxxxxxxxx> Hello, Matthias Thanks for your test and response, I will send a formal patch later. > > > > Hello, Matthias > > > > Sorry for the later reply, I have reproduced this issue, > > I found s->iop.bio became invalid after calling bio_complete() > > in search_free(). Maybe its upper layer's faulty, since bio should > > not freed before we calling bio_put(), but we'd better calling > > bio_put() first before calling bio_complete() to notify upper layer > > ending this bio. > > Hello Tang Junhui, > > thank you very much for your attention and work. I tested the patch > (with 4.15.0), and I don't see any of the former issues anymore. No more > hangs or crashes. Brilliant! Thanks Tang Junhui -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html