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From: Matthew Jacob <mj@feral.com>
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To: freebsd-scsi@freebsd.org
Subject: Re: isp(4) broken in RELENG_9
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On 10/31/2012 8:25 AM, Joerg Pulz wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
>
> Hi,
>
> somewhere on the road between RELENG_9_1 and RELENG_9 changes to 
> isp(4) make the driver unable to attach to the device.
>
> Here is the boot output of the failing RELENG_9:
>
> isp0: <Qlogic ISP 2532 PCI FC-AL Adapter> port 0x3000-0x30ff mem 
> 0xf7140000-0xf7143fff,0xf7200000-0xf72fffff irq 16 at device 0.0 on pci3
> isp0: error 22 loading dma map for control areas
> isp0: Cannot setup DMA
> device_attach: isp0 attach returned 6
> isp0: <Qlogic ISP 2532 PCI FC-AL Adapter> port 0x3400-0x34ff mem 
> 0xf7144000-0xf7147fff,0xf7300000-0xf73fffff irq 17 at device 0.1 on pci3
> isp0: error 22 loading dma map for control areas
> isp0: Cannot setup DMA
> device_attach: isp0 attach returned 6
Can we get a bit more info about the system you are running on? The only 
way this seems that it can happen is if more than one segment is created 
for the DMA maps of the queues, which, err, umm, would be wrong. The 
code is actually incorrect in an assumption it's making. It might have 
worked in previous releases, but the underlying mapping stuff may have 
changed and uncovered an issue.