Drive light on all the time on 8-STABLE.

[Jonathan Chen]

On Mon, Jan 18, 2010 at 07:20:08AM +1300, Jonathan Chen wrote:
> On Sun, Jan 17, 2010 at 12:28:04PM +0200, Alexander Motin wrote:
> > Jonathan Chen wrote:
> > > On the weekend, I moved my 8-STABLE installation (csup'd late Dec 2009)
> > > onto a new drive, a Seagate ST31000528AS CC3; and while the transfer was
> > > successful, I've noticed that the drive light is solidly on all the time,
> > > even if it boots into single-user.
> > > 
> > > # uname -a
> > > FreeBSD osiris.chen.org.nz 8.0-STABLE FreeBSD 8.0-STABLE #1: Sat Jan 16 08:32:54 NZDT 2010     root@:/usr/obj/usr/src/sys/OSIRIS  amd64
> > > 
> > > Is this something I should be worried about? There doesn't appear to
> > > be any disk I/O (I can't hear the disk grinding), but I may be wrong.
> > > The drive from which I transferred from did not exhibit this strange
> > > behaviour.
> > > 
> > > Any advice would be welcome.
> > 
> > What disk controller and driver do you use?
> 
> It's just the out of the box ATA drivers. All the filesystems are UFS.
> I'm not sure how to find out what the disk controller is, so I've
> included the dmesg output. The motherboard is a Gigabyte GA-MA69G-S3H.

I've rebooted the box a few times, and have observed that the drive
LED flickers normally up until:

> atapci0: <ATI IXP600 SATA300 controller> port 0xff00-0xff07,0xfe00-0xfe03,0xfd00-0xfd07,0xfc00-0xfc03,0xfb00-0xfb0f mem 0xfe02f000-0xfe02f3ff irq 22 at device 18.0 on pci0
> atapci0: [ITHREAD]
> atapci0: AHCI v1.10 controller with 4 3Gbps ports, PM supported
> ata2: <ATA channel 0> on atapci0
> ata2: port is not ready (timeout 0ms) tfd = 000001d0
> ata2: software reset clear timeout
> ata2: [ITHREAD]

At which point after the software reset, the drive LED stays solidly
on from then onwards.

Cheers.
-- 
Jonathan Chen <jonc at chen.org.nz>
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                 When you don't know what you are doing, do it neatly.