Flexible I/O Tester development
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From: Jens Axboe <axboe@kernel.dk>
To: Danny Kukawka <dkukawka@suse.de>
Cc: fio@vger.kernel.org
Subject: Re: fio problems
Date: Wed, 04 Apr 2012 14:15:01 -0600	[thread overview]
Message-ID: <4F7CABC5.7090109@kernel.dk> (raw)
In-Reply-To: <4F7CA5F1.2050309@kernel.dk>

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On 2012-04-04 13:50, Jens Axboe wrote:
>> 2) fio 2.0.6 and also the current git tends to fail with this error:
> 
>>    fio 2.0.6
>>    Starting 1 process
>>    fio: iolog.c:242: log_io_piece: Assertion `ipo->len == __ipo->len'
>>    failed.:08m:31s]
> 
>> It seems that we can prevent it when we use the --size parameter, but we
>> would like to prevent the usage of the parameter, if possible
> 
> Strangely, I had two reports of this today. Did a bit of digging, and
> it's due to this commit:
> 
> commit c04e4661e4da3b6079f415897e4507cf8e610c54
> Author: Daniel Ehrenberg <dehrenberg@google.com>
> Date:   Fri Mar 16 18:54:15 2012 +0100
> 
>     time_based: Avoid restarting main I/O loop
> 
> I think what is going on here is that your job is time based, and when
> we fail getting a new offset, we clear the offset bitmap. But we could
> have verifies pending at this point, we'd need to prune this out as
> well.

Actually, since it happens so rarely, I think the better approach is
just to ignore it. I've updated fio to reflect that.

- -- 
Jens Axboe

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  reply	other threads:[~2012-04-04 20:15 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-04-04  6:39 fio problems Danny Kukawka
2012-04-04 19:50 ` Jens Axboe
2012-04-04 20:15   ` Jens Axboe [this message]
2012-04-05  9:24     ` Danny Kukawka
2012-04-05 14:45       ` Jens Axboe
2012-04-05  8:51   ` Danny Kukawka
2012-04-05 14:42     ` Jens Axboe
2012-04-05 15:30       ` Danny Kukawka
2012-04-05 15:41         ` Jens Axboe
2012-04-05 18:29       ` Usage of group reporting Lucian Grijincu
2012-04-05 22:01         ` Jens Axboe

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