On Tuesday 30 January 2007 15:53, Simon Farnsworth wrote: > Hello, > > I've got a VIA VT8251 AHCI controller, driving two Maxtor SATA disks. > Under Linux 2.6.18.5, it works; using 2.6.19.1, it fails to work (bug > report at http://bugzilla.kernel.org/show_bug.cgi?id=7589 - note that > pci=nomsi does not fix things for me, as I still get no interrupts). > I've been going through 2.6.20-rc releases this evening. 2.6.20-rc7 resolves my AHCI fault (although not the MSI problem); it looks like Tejun Heo's fix to ahci_thaw() in a718728f9e40ec79c0879ec6509a54fee214f5b2 fixes things for my setup. Of course, I'm now curious as to why NCQ is disabled on VIA AHCI controllers. Is there a known hardware bug I should be wary of, or is it just a case of being cautious due to the other issues with the VT8251 (in which case I'll try enabling it and reporting back)? -- Thanks for the code and the fix, Simon Farnsworth
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