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Date: Wed, 14 Nov 2007 23:30:30 +0200
From: Mykola Dzham <freebsd@levsha.org.ua>
To: freebsd-stable@freebsd.org
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Subject: panic when burncd attempt to eject disk (after upgrade 7.0-BETA1 ->
	7.0-BETA2)
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I have cd/dwd writer on my laptop:
acd0: DVDR <PIONEER DVDRW DVR-K17/1.05> at ata0-master PIO4
Writer work properly on 7.0-BETA1 #15: Tue Oct 30 13:21:42 EET 2007 ,
but after today upgrade to 7.0-BETA2 #16: Wed Nov 14 15:41:44 EET 2007
kernel panics during run burncd -es 8 data file.iso fixate (i think when
burncd attempt to eject disk after fixate):

panic: Geom provider ACD::acd0 failed closing ->access()
cpuid = 1
KDB: enter: panic
[thread pid 1652 tid 100059 ]
Stopped at        kdb_enter+0x32: leave

As there was a change in behaviour "atacontrol mode acd0" command when
no disk in writer: on BETA1 command show current mode, but on BETA2
return error "atacontrol: device not found: Input/output error"

-- 
Mykola Dzham, LEFT-(UANIC|RIPE)
JID: levsha@jabber.net.ua