Date: Thu, 19 Jan 2006 19:40:11 GMT From: "D.Pageau" <dpageau@infodev.ca> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/92016: SATA Disk not detected on Dell PowerEdge 850 Message-ID: <200601191940.k0JJeBfk023713@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
The following reply was made to PR kern/92016; it has been noted by GNATS. From: "D.Pageau" <dpageau@infodev.ca> To: bug-followup@FreeBSD.org Cc: Subject: Re: kern/92016: SATA Disk not detected on Dell PowerEdge 850 Date: Thu, 19 Jan 2006 14:37:30 -0500 Problem describe: Doug Ambrisko writes: | This is sort-of the clue indirectly. The issue is that the ICH7 and | maybe ICH6 have a hybrid AHCI mode in which the SATA status, error, control | registers are present in AHCI for compatibility but that's all. The | reset of the AHCI registers are not there so then you have to | wack the registers in PCI space 0x92 to reset the controller. Doing | an AHCI reset won't work since it isn't running full AHCI mode. | | I don't have a fix but this is the problem that I see. If we don't | do the channel reset via PCI space then it can never get out of that | state so no drives are found.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200601191940.k0JJeBfk023713>