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Date:      Sun, 12 Jan 2003 06:49:18 -0800
From:      walt <wa1ter@hotmail.com>
To:        freebsd-current@freebsd.org
Subject:   Re: ATA seems to lock up the system at boot (KT133A)
Message-ID:  <3E21806E.4080102@hotmail.com>
In-Reply-To: <avrfc1$2l0f$1@FreeBSD.csie.NCTU.edu.tw>
References:  <avrfc1$2l0f$1@FreeBSD.csie.NCTU.edu.tw>

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Alexander Leidinger wrote:
> Hi,
> 
> a dmesg from a working kernel (from Jan 5) shows:
> ---snip---
> acpi_cpu: CPU throttling enabled, 2 steps from 100% to 50.0%
> ad0: 58644MB <IC35L060AVER07-0> [119150/16/63] at ata0-master tagged UDMA100
> afd0: 96MB <IOMEGA ZIP 100 ATAPI> [32/64/96] at ata1-master PIO0
> Waiting 6 seconds for SCSI devices to settle
> ---snip---
> 
> The not working kernel from yesterday locks up after printing the ad0
> line...

Assuming this is the same as I see on my -STABLE box, this started months
ago.  I have a SCSI Jaz drive (similar to a Zip) which started to hang
the machine after the ad0 line when I remove the cartridge from the Jaz.

The hang is not indefinite, however.  If I just wait about 30-40 seconds
the boot will proceed as usual.  Replacing the Jaz cartridge restores
the behavior to normal.

This was puzzling because there is no error message or time-out message
to give a clue what is causing the delay.

Could your Zip disk be missing or bad?



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