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Date:      Sun, 04 Nov 2007 23:26:20 +0100
From:      Kris Kennaway <kris@FreeBSD.org>
To:        Oleg Derevenetz <oleg@vsi.ru>
Cc:        freebsd-stable@FreeBSD.org
Subject:   Re: kern/104406: [ufs] Processes get stuck in	"ufs"	stateunderpersistent CPU load
Message-ID:  <472E470C.9030607@FreeBSD.org>
In-Reply-To: <01c801c81f1f$6366ae20$eec55358@OODAMDXP>
References:  <027d01c8125c$73d4db80$c8c55358@delloleg><20071019220501.GL31826@elvis.mu.org><006d01c8133a$674a90b0$eec55358@W2KOOOD>	<20071020192601.GW31826@elvis.mu.org><001201c81353$6b17e300$efc55358@NBOOOD>	<47278B33.6040904@FreeBSD.org> <008401c81ca8$65861a70$eec55358@OODAMDXP> <472DDF50.80505@FreeBSD.org> <01c801c81f1f$6366ae20$eec55358@OODAMDXP>

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Oleg Derevenetz wrote:
>>>>> Dumpdev is swap partition on da0 (single physical disk) that 
>>>>> connected to Mylex AcceleRAID 170 RAID controller. The problem 
>>>>> arrives when I copy large amount of files from FTP to another disk 
>>>>> (da1) that is connected to the same RAID controller.
>>>>
>>>> If the driver or controller is misbehaving it could explain both 
>>>> problems. Any chance you can get another disk in there on a 
>>>> different controller to dump onto?
>>>
>>> Yes, I got IDE disk and saved kernel dump for another static hang 
>>> state on it. Here is the dump:
>>>
>>> ftp://oleg.vsi.ru/private/vmcore.0.zip
>>
>> Is this just the vmcore, or the debugging kernel also?  Both are 
>> needed to make sense of the dump.
> 
> Kernel binary with kernel config is here:
> 
> ftp://oleg.vsi.ru/private/kernel.zip
> 
> This kernel was built statically, and no modules loaded on boot at all.
> 
> -- 
> Oleg Derevenetz <oleg@vsi.ru> OOD3-RIPE
> Phone: +7 4732 539880
> Fax:   +7 4732 531415         http://www.vsi.ru
> CenterTelecom Voronezh ISP    http://isp.vsi.ru
> 
> 

That kernel doesn't appear to match with the vmcore, are you sure it is 
the right one?  Are you able to successfully run kgdb on these locally?

Kris



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