Hi, i run filebench's fileserver workload on bcache. It disabled the flash cache layer in the middle due to the inconsistent ptrs. here is the error message. bcache: error on b3f3f4cb-3df2-4564-a45f-18a05f497d78: inconsistent ptrs: mark = 2, level = 0, disabling caching [ 2444.047018] Pid: 2930, comm: kworker/u:1 Not tainted 3.9.0+ #196 [ 2444.047019] Call Trace: [ 2444.047025] [<ffffffff81614bd8>] __bch_btree_mark_key+0x268/0x290 [ 2444.047027] [<ffffffff81614ff5>] btree_gc_mark_node+0x75/0x230 [ 2444.047029] [<ffffffff8161530e>] btree_gc_recurse+0x15e/0x530 [ 2444.047031] [<ffffffff8161b20d>] ? bch_btree_sort_into+0x8d/0xf0 [ 2444.047033] [<ffffffff81617794>] bch_btree_gc+0x594/0x640 [ 2444.047035] [<ffffffff8161e4be>] ? dirty_io_destructor+0xe/0x10 [ 2444.047038] [<ffffffff81077cfb>] process_one_work+0x16b/0x400 [ 2444.047040] [<ffffffff81078988>] worker_thread+0x118/0x360 [ 2444.047042] [<ffffffff81078870>] ? manage_workers+0x350/0x350 [ 2444.047044] [<ffffffff8107df10>] kthread+0xc0/0xd0 [ 2444.047046] [<ffffffff8107de50>] ? flush_kthread_worker+0xb0/0xb0 [ 2444.047048] [<ffffffff817adb2c>] ret_from_fork+0x7c/0xb0 [ 2444.047050] [<ffffffff8107de50>] ? flush_kthread_worker+0xb0/0xb0 is there any suggestion? Thanks, Sheng -- Sheng Qiu Texas A & M University Room 332B Wisenbaker email: herbert1984106@xxxxxxxxx College Station, TX 77843-3259 -- 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