On Wed, Jan 13, 2016 at 11:22 PM, Miu Vlad-Cosmin <miuvlad@xxxxxxxxx> wrote: > Hello, > > In a rather basic bcache setup (one cache + mdraid backing), > I encounter a kernel problem related to bcache with 4.4.0. > > In order to trigger this bug, fill the cache with some dirty data. > When there is some dirty data, wait for the bcache_writeback to > start writing it to the backing device (0-3 minutes) > and the BUG triggers. > > Please find more info here: https://bugzilla.kernel.org/show_bug.cgi?id=110771 > > [<ffffffff815822af>] make_request+0x47f/0xca0 > [<ffffffff815a5d3d>] md_make_request+0xdd/0x220 > [<ffffffff810c53ce>] ? pick_next_task_fair+0x12e/0x450 > [<ffffffff81311d2e>] generic_make_request+0xce/0x1b0 > [<ffffffff815a1b70>] write_dirty+0x60/0xb0 > [<ffffffff810aafa7>] process_one_work+0x147/0x3d0 > [<ffffffff810ab546>] worker_thread+0x46/0x440 > [<ffffffff810ab500>] ? rescuer_thread+0x2d0/0x2d0 > [<ffffffff810ab500>] ? rescuer_thread+0x2d0/0x2d0 > [<ffffffff810afeb4>] kthread+0xc4/0xe0 > [<ffffffff810afdf0>] ? kthread_park+0x50/0x50 > [<ffffffff8170c85f>] ret_from_fork+0x3f/0x70 > > A bisect shows "[578270bfbd2803dc7b0b03fbc2ac119efbc73195] > block: fix segment split" as the problem. CC Ming Lei. > > Anyone can confirm this ? > > Thanks, > Vlad -- 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
