atapicam problem (again): hang on boot with DVD burner

Sergey Lungu sergey.lungu at gmail.com
Mon Feb 6 14:59:21 PST 2006


Hi!

I'm not burning DVDs frequently, so I haven't seen this problem before.
I have burned a DVD with growisofs and after that I am seeing a 3-5 min
hang at boot time. No error messages at all, just hang :)

Here is what I have:

Copyright (c) 1992-2005 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights
reserved. FreeBSD 6.1-PRERELEASE #0: Fri Feb  3 11:35:18 MSK 2006
    keyer at ogre.obchaga.org:/usr/obj/usr/src/sys/OGRE
ACPI APIC Table: <A M I  OEMAPIC >
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Pentium(R) 4 CPU 2.40GHz (2405.47-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0xf41  Stepping = 1

[...]

acd0: DMA limited to UDMA33, controller found non-ATA66 cable
acd0: DVDR <PIONEER DVD-RW DVR-110D/1.08> at ata1-master UDMA33
cd0 at ata1 bus 0 target 0 lun 0
cd0: <PIONEER DVD-RW  DVR-110D 1.08> Removable CD-ROM SCSI-0 device 
cd0: 33.000MB/s transfers
cd0: Attempt to query device size failed: NOT READY, Medium not present

[3-5 min hang goes here]

Trying to mount root from ufs:/dev/ad0s2a

The most interesting thing is that I had no such problem before using
my DVD burner!

Is there a way to fix it?

-- 
Sergey Lungu

Real programmers don't comment their code. if it is hard
to write, it should be hard to understand.


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