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Date:      Thu, 2 Apr 2009 11:58:12 +0400 (MSD)
From:      Dmitry Morozovsky <marck@rinet.ru>
To:        Alexander Motin <mav@FreeBSD.org>
Cc:        stable@FreeBSD.org
Subject:   Re: RELENG_7 ata panic on atacontrol attach
Message-ID:  <alpine.BSF.2.00.0904021154020.32133@woozle.rinet.ru>
In-Reply-To: <49D3BD14.9070505@FreeBSD.org>
References:  <alpine.BSF.2.00.0903311417251.60285@woozle.rinet.ru> <49D29097.9040701@FreeBSD.org> <alpine.BSF.2.00.0904010330360.32133@woozle.rinet.ru> <49D3BD14.9070505@FreeBSD.org>

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On Wed, 1 Apr 2009, Alexander Motin wrote:

AM> > AM> > AM> > atapci3: <nVidia nForce MCP55 SATA300 controller> port
AM> > AM> >
AM> > 0xbc00-0xbc07,0xb880-0xb883,0xb800-0xb807,0xb480-0xb483,0xb400-0xb40f mem
AM> > AM> > 0xefcb3000-0xefcb3fff irq 23 at device 5.2 on pci0
AM> > AM> > AM> > AM> > atacontrol detach ata7
AM> > AM> > - insert ATA disk (ad14)
AM> > AM> > atacontrol attach ata7
AM> > AM> > AM> > pinics with Fatal trap 12: page fault while in kernel mode
AM> > AM> AM> Any kernel verbose messages before it?
AM> > 
AM> > Nope. Just
AM> > 
AM> > ata7: [ITHREAD]^M
AM> > ^M
AM> > ^M
AM> > Fatal trap 12: page fault while in kernel mode^M
AM> > 
AM> > and approx 15 seconds of wait between ata channel detection and the panic.
AM> 
AM> Are you sure that you have verbose messages enabled during boot or via
AM> sysctl? It looks a bit too quiet.

Ah, you're right, on this server I turned off boot_verbose. Will recheck.

AM> RELENG_7 branch ATA maintenance is a bit difficult for me now due to big
AM> differences from the HEAD. It makes me wish to sync them as there is still
AM> too much time before 7.x EOL. May be I will do it after the 7.2 release
AM> process finished. Now is probably not the best time to do it.

Fully understood. The only thing I wish to add is that RELENG_7 ata is much 
more picky in reinitializations (e.g., disk swaps) than RELENG_6.

Thank you!

-- 
Sincerely,
D.Marck                                     [DM5020, MCK-RIPE, DM3-RIPN]
[ FreeBSD committer:                                 marck@FreeBSD.org ]
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*** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck@rinet.ru ***
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