Date: Tue, 26 May 2009 14:45:52 +0100 From: Gavin Atkinson <gavin@FreeBSD.org> To: triosoft@triosoft.com.ua Cc: freebsd-current@FreeBSD.org Subject: Re: ATA_STATIC_ID and AHCI bug or /dev/hands ? Message-ID: <1243345552.80806.20.camel@buffy.york.ac.uk> In-Reply-To: <1d05d65670fbc0f7e84d8b42351c63aa.squirrel@webmail.ic.uz.ua> References: <1d05d65670fbc0f7e84d8b42351c63aa.squirrel@webmail.ic.uz.ua>
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On Sun, 2009-05-24 at 21:41 +0300, triosoft@triosoft.com.ua wrote: > Hello! > > I found some odd behavior of ata device numbering. It seems, that there > is no effect of option ATA_STATIC_ID in CURRENT. > What I have: > supermicro server with 4 sata ports onto Intel ICH7 SATA300 controller > recent CURRENT > sata mode in BIOS is Enhanced > ahci support in BIOS in Enabled > option ATA_STATIC_ID in KERNCONF > > So, if I boot with 4 HDD connected to sata i found ad4,ad6,ad8,ad10 as > disks. but when I detach disk, which "was" ad8 in last case, and then > reboot - I see ad4,ad6,ad8! and not ad4,ad6,ad10! atacontrol list > doesn't show an empty ata channel. Only channels with HDDs connected. I > check 6.x 7.x on the same server with _the same configuration in bios_ - > and all works as suspected - there are empty ata channels, there are > really static device numbers. when I set AHCI to Disabled I have just > two ata channels (with AHCI - I have four, one for each sata disk) and > with or without HDDs connected I see empty channels and have really > static dev nums in the same CURRENT. > So my question is - is it my fault? does I miss something? Or it is a bug? This sounds like a bug to me. I think you're probably best submitting a PR, and please include (or link to) a verbose dmesg from both 7.x and HEAD, and the output of "atacontrol list" from both. Thanks, Gavin
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