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Date: Mon, 30 Aug 2004 12:51:38 +0200
From: "Alexander S. Usov" <A.S.Usov@KVI.nl>
To: freebsd-current@freebsd.org
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Subject: 5.3-BETA2 hangs during cdrom detection
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Hi!

I have a problems installing 5.3-BETA1 & BETA2 on my pc.

The configuration is like this:
motherboard -- AOpen AX4GR based on i845G and ICH4.
On the first ide channel there is an HDD, and on the second channel -- CDROM.
I am not sure about the exact model, but FreeBSD 5.2.1-p9 detects it as 
<CD-ROM 56X/AKH>.

The problem is, that FreeBSD somehow incorrectly detects the absence of the 
slave device on the second ata channel, and tries to detect it.
On 5.2.1 it looks like this:
.....
ad0: 76345MB <MAXTOR 6L080J4> [155114/16/63] at ata0-master UDMA100
ata1-slave: FAILURE - ATA_IDENTIFY no interrupt
ata1-slave: FAILURE - ATA_IDENTIFY  status=7f<READY,DMA_READY,DSC,DRQ,
CORRECTABLE,INDEX,ERROR> error=7f<UNCORRECTABLE,MEDIA_CHANGED,
NID_NOT_FOUND,MEDIA_CHANGE_REQEST,ABORTED,NO_MEDIA,ILLEGAL_LENGTH> LBA=0
ata1-slave: FAILURE - ATA_IDENTIFY no interrupt
acd0: CDROM <CD-ROM 56X/AKH> at ata1-master WDMA2
......

With 5.3 I am getting only the 
ata1-slave: FAILURE - ATA_IDENTIFY  status=7f<READY,DMA_READY,DSC,DRQ,
CORRECTABLE,INDEX,ERROR> error= 7f<UNCORRECTABLE,MEDIA_CHANGED,
NID_NOT_FOUND,MEDIA_CHANGE_REQEST,ABORTED,NO_MEDIA,ILLEGAL_LENGTH> LBA=0
and it hangs.
I have tried replacing the cdrom with different hdd and putting in as a slave 
on the first channel -- both cases work.

Also booting in safe mode or without acpi doesn't helps.

Unfortunately it's not too easy to get a dmesg from it, but I can try to write 
it down.

-- 
Best regards,
  Alexander.