I've no idea why this is occurring:
WARNING: at kernel/lockdep.c:700 look_up_lock_class()
Pid: 2068, comm: scsi_wq_3 Not tainted 2.6.24-rc6 #38
[<c010535a>] show_trace_log_lvl+0x1a/0x30
[<c0105ce2>] show_trace+0x12/0x20
[<c010601c>] dump_stack+0x6c/0x80
[<c014696d>] __lock_acquire+0x46d/0x10b0
[<c0147628>] lock_acquire+0x78/0xa0
[<c0136d18>] run_workqueue+0x128/0x1d0
[<c013795c>] worker_thread+0x8c/0xf0
[<c013ab32>] kthread+0x42/0x70
[<c0104f47>] kernel_thread_helper+0x7/0x10
=======================
it looks to be happening on the initial workqueue.c:run_workqueue()
spin_lock_irq(&cwq->lock);
It's caused by lockdep.c:look_up_lock_class()
WARN_ON_ONCE(class->name != lock->name);
but I'm not entirely sure what this actually means, not fully
understanding lockdep classes and how we acquire them in scsi.
James
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