On Saturday, 22 of December 2007, James Bottomley wrote:
> 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.
I guess Ingo and/or Peter should have a look at this.
Thanks,
Rafael
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
