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Date:      Fri, 11 May 2001 14:13:07 -0400 (EDT)
From:      Thomas David Rivers <rivers@dignus.com>
To:        barney@tp.databus.com, eugen@grosbein.pp.ru
Cc:        freebsd-stable@FreeBSD.ORG
Subject:   Re: 4.3-STABLE panics while mounting CD-R
Message-ID:  <200105111813.OAA11089@lakes.dignus.com>
In-Reply-To: <20010511135459.A24957@tp.databus.com>

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> 
> Is it an audio cd?  I've experienced the instant panic when mistakenly
> trying to mount such as a cd9660 fs.  Of course it shouldn't panic,
> but the workaround is not to do that.

 I get similar situations when mounting the 4.2-RELEASE 3rd CD for
 reading packages...

 This is with a 4.2-RELEASE system...

 From the boot messages:

atapci0: <Intel PIIX4 ATA33 controller> port 0xd8 00-0xd80f at device 4.1 on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
acd0: CDROM <BCD E520C> at ata1-master using PIO4

 And here's an example:

May  3 09:13:18 fjord /kernel: cd9660: RockRidge Extension
May  3 09:14:02 fjord /kernel: acd0: READ_BIG - NO SENSE asc=00 ascq=00 error=00
May  3 09:14:12 fjord /kernel: acd0: READ_BIG - NO SENSE asc=00 ascq=00 error=00
May  3 09:15:00 fjord /kernel: acd0: READ_BIG command timeout - resetting
May  3 09:15:00 fjord /kernel: ata1: resetting devices .. done
May  3 09:15:30 fjord /kernel: acd0: READ_BIG command timeout - resetting
May  3 09:15:30 fjord /kernel: ata1: resetting devices .. ata1-master: timeout w
aiting for command=ef s=00 e=50
May  3 09:15:30 fjord /kernel: done
May  3 09:15:56 fjord su: rivers to root on /dev/ttyp1
May  3 09:16:00 fjord /kernel: acd0: READ_BIG command timeout - resetting
May  3 09:16:00 fjord /kernel: ata1: resetting devices .. ata1-master: timeout w
aiting for command=ef s=00 e=50
May  3 09:16:00 fjord /kernel: done
May  3 09:16:30 fjord /kernel: acd0: READ_BIG command timeout - resetting
May  3 09:16:30 fjord /kernel: ata1: resetting devices .. ata1-master: timeout w
aiting for command=ef s=00 e=50
May  3 09:16:30 fjord /kernel: done

 At which point the cdrom was hung and a reboot was needed...


I can reproduce this when I NFS mount the CDROM with the 4.2-RELEASE Disk #2
in the drive.

	- Dave Rivers -

--
rivers@dignus.com                        Work: (919) 676-0847
Get your mainframe programming tools at http://www.dignus.com




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