Re: 2.6.0-test7-mm1

[Andrew Morton]

Bradley Chapman <kakadu_croc@xxxxxxxxx> wrote:
>
> You're welcome. Unfortunately I got this non-fatal Oops when I first booted:
> 
>  ohci1394: $Rev: 1045 $ Ben Collins <bcollins@xxxxxxxxxx>
>  ohci1394_0: OHCI-1394 1.1 (PCI): IRQ=[10]  MMIO=[e8207000-e82077ff]  Max
>  Packet=[2048]
>  Debug: sleeping function called from invalid context at mm/slab.c:1869
>  in_atomic():1, irqs_disabled():0
>  Call Trace:
>   [<c0123fc6>] __might_sleep+0xa0/0xc2
>   [<c0156bc4>] __kmalloc+0x204/0x216
>   [<e08a9ed4>] hpsb_create_hostinfo+0x6b/0xe8 [ieee1394]
>   [<e08af0e6>] nodemgr_add_host+0x23/0x1d2 [ieee1394]
>   [<c0216bd4>] sprintf+0x1f/0x23
>   [<e08aa789>] highlevel_add_host+0x6b/0x6f [ieee1394]
>   [<e08a9cce>] hpsb_add_host+0x6d/0x95 [ieee1394]

highlevel_add_host() does read_lock() and then proceeds to do things like
starting kernel threads under that lock.  The locking is pretty broken
in there :(


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