bcache disabled due to inconsistent ptrs

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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
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