netdev - Re: Reproducible data corruption with sendfile+vsftp

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Date:	Thu, 06 Dec 2007 10:41:28 +0100
From:	"Holger Hoffstaette" <holger@...ards.de>
To:	netdev@...r.kernel.org
Subject:  Re: Reproducible data corruption with sendfile+vsftp - splice regression?

(removing .kernel as it seems to concern netdev only)

On Thu, 06 Dec 2007 02:13:00 +0100, Francois Romieu wrote:

> Francois Romieu <romieu@...zoreil.com> :
>> Holger Hoffstaette <holger@...ards.de> : [...]
>> > Should I file this in bugzilla?
>> 
>> Yes.
> 
> 5326 5585327 5585328 5585329 5585330 5585331 5585332 5585333 5585334
> 5585335 558 5336 5585337 5585338 5585339 5585340 5585341 5585342 5585343
> 5589440 5589441 558
>                                                      ^^^^^^^ ^^^^^^^
> 9442 5589443 5589444 5589445 5589446 5589447 5589448 5589449 5589450
> 5589451 558 9452 5589453 5589454 5589455 5589456 5589457 5589458 5589459
> 5589460 5589461 558
> 
> It misses 8*4096 bytes.
> 
> 8443 9068442 9068441 9068440 9068439 9068438 9068437 9068436 9068435
> 9068434 906 8433 9068432 9068431 9068430 9068429 9068428 9068427 9064330
> 9064329 9064328 906
>                                              ^^^^^^^ ^^^^^^^
> 4327 9064326 9064325 9064324 9064323 9064322 9064321 9064320 9064319
> 9064318 906
> 
> Same thing later.
> 
> But the amount of data transmitted is fine.
> 
> Could you locate the offsets were the sequence is broken ?

According to my hex editor the offsets are:

0x02aa43e4
0x02feb473
0x03142994
0x03765f33
0x03e42ff3
0x03e5079c
0x03e60d9c
0x0451db54
0x0452e7ec

I'll also put all this into bugzilla.

thanks!
Holger


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