Hello,

Hemmann, Volker Armin wrote:
quoted text
> -AHCI+nomsi: boots fine. Works fine. But: I still can not enable ncq
> -AHCI+msi: the usual. No harddisks found, waiting for the timeouts, then 
> kernel panic because of missing root.
> 
> -NON-RAID/IDE+msi: works fine. No delays. No NCQ (not surprising since mobos 
> handbook says that AHCI mode is required).
> -NON-RAID/IDE+nomsi: see above.

So, sans NCQ, the only remaining issue is MSI, right?  Peer Chen, please
lemme know which controllers are affected by this MSI problem and where
the problem lies.

quoted text
> but:
> [14315325.624510] ahci 0000:00:0a.0: AHCI 0001.0100 32 slots 4 ports 3 Gbps 
> 0xf impl SATA mode
> [14315325.624559] ahci 0000:00:0a.0: flags: 64bit sntf led clo pmp pio
> 
> shouldn't controller and harddisks support turning on NCQ? The handbooks says 
> that NCQ is supported in AHCI mode and the harddisks doesn't seem to be 
> blacklisted.

The controller is not reporting NCQ capability in its cap register
(flags: line contains ncq if the controller is), so NCQ is not enabled.

Thanks.

-- 
tejun
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