Creating a bootable ZFS disk?

Steven Hartland
Thu, 01 Jan 2015 19:28:40 -0000

On 01/01/2015 17:18, Dr Josef Karthauser wrote:
> On 30 Dec 2014, at 16:34, Steven Hartland <killing at
multiplay.co.uk> wrote:
>> This is strengthened by the fact that ATI's previous generation HW
(SB600) had MSI disabled by r245875 due to a very similar issue.
>>
>> So given all the evidence so far ahci.0.msi=1 may well be the fix.
>>
> Is there any benefit to also trying with mdi > 1 < 8?
Nope as the ahci(4) details there's only 3 settings:
0 = MSI disabled
1 = Single MSI vector used, if supported
2 = Multiple MSI vectors used, if supported (default)

If setting it to 1 does fix it, I've got a patch which provides a quirk
we can use to make that the default for this HW.

     Regards
     Steve