On 2015-5-15, at 16:35, Roger Pau Monné <roger....@citrix.com> wrote:
> 
> Yes, but I've realized that isci for example passes an uint32_t instead
> of an int, so it might be best to set it to 0.

Here is what I see now:

isci0: <Intel(R) C600 Series Chipset SAS Controller (SATA mode)> port 
0x6000-0x60ff mem 0xde07c000-0xde07ffff,0xddc00000-0xddffffff irq 16 at device 
0.0 on pci10
isci0: attempting to allocate 2 MSI-X vectors (2 supported)
ISCI: isci->num_interrupts: 2 max_msix_messages: 2
isci: 1:000089 ISCI bus_alloc_resource failed

The storm is still there.

Will now set hw.isci.force_legacy_interrupts=1 and check if the device then 
works correctly.

Lars

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