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Date:      Mon, 05 Oct 2009 13:56:51 -0400
From:      Charles Owens <cowens@greatbaysoftware.com>
To:        Pawel Jakub Dawidek <pjd@FreeBSD.org>
Cc:        freebsd-fs@freebsd.org
Subject:   Re: gjournal crash: "error while writing data (error=6)"
Message-ID:  <4ACA3363.1090309@greatbaysoftware.com>
In-Reply-To: <20091005165852.GF1702@garage.freebsd.pl>
References:  <4ACA015D.3090800@greatbaysoftware.com> <20091005161258.GE1702@garage.freebsd.pl> <4ACA1EEA.3070204@greatbaysoftware.com> <20091005165852.GF1702@garage.freebsd.pl>

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Pawel Jakub Dawidek wrote:
> On Mon, Oct 05, 2009 at 12:29:30PM -0400, Charles Owens wrote:
>   
>> Pawel Jakub Dawidek wrote:
>>     
>>> On Mon, Oct 05, 2009 at 10:23:25AM -0400, Charles Owens wrote:
>>>   
>>>       
>>>> Hello folks,
>>>>
>>>> We've had a system crash, apparently related to GEOM_JOURNAL, on an i386
>>>> system running 7.0-RELEASE-p11.   Here's what we could see on the screen
>>>> (formatted for readability):
>>>>
>>>> GEOM_JOURNAL: [copy] Error while writting data (error=6) \
>>>>     ad4s1a[WRITE(offset=43561402368, length=16384)]
>>>> GEOM_JOURNAL: [copy] Error while writting data (error=6) \
>>>>     ad4s1a[WRITE(offset=48868164096, length=16896)]
>>>> GEOM_JOURNAL: Error while reading data from ad4s1a (error=6).
>>>>     
>>>>         
>>> Error 6 (ENXIO, man errno(2)) might mean that ad4s1a disappeared. There
>>> were no any errors earlier indicating that ad4 was disconnected or
>>> similar?
>>>   
>>>       
>> Such as if someone had come by and temporarily pulled out the drive?  
>>     
>
> It can be buggy ata controller or failing disk.
>
>   
>> Nothing in the logs of the sort, no.
>>     
>
> What is exact partition size in bytes?
>   

>From 'bsdlabel ad4s1':

  a: 77594624        0    4.2BSD     2048 16384 28552 


77594624 * 512 = 39728447488 (37 GB)


**Charles Owens**
*Great Bay Software*****



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