On 5/16/14, 12:21 PM, Hans Petter Selasky wrote:
> Hi,
> I see the following panic:
> panic: resource_list_add: resource entry is busy
> When trying to kldload an older pccard driver. The call comes from the
> driver_added bus method somewhere down the tree. Loading the module
> before the kernel boots fixes the problem temporarily.
> Any bells ringing or patch suggestions?
> Seeing this on 9-stable, also believed that the same issue exists with
> 10-current.

Something is doing a duplicate resource_list_add() for the same RID.
The trace will tell you where the second resource_list_add() is
occurring.  Some tracing should let you see where the first one occurs.

John Baldwin
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