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From: Phillip Susi <psusi@cfl.rr.com>
To: Daniel Drake <ddrake@brontes3d.com>
Cc: axboe@suse.de, linux-kernel@vger.kernel.org
Subject: Re: splice blocks indefinitely when len > 64k?
Date: Mon, 30 Oct 2006 14:11:35 -0500	[thread overview]
Message-ID: <45464E67.7030004@cfl.rr.com> (raw)
In-Reply-To: <1162226390.7280.18.camel@systems03.lan.brontes3d.com>

While it should not simply hang, the splice size needs to be an even 
multiple of the page size.

Daniel Drake wrote:
> Hi,
> 
> I'm experimenting with splice and have run into some unusual behaviour.
> 
> I am using the utilities in git://brick.kernel.dk/data/git/splice.git
> 
> In splice.h, when changing SPLICE_SIZE from:
> 
> #define SPLICE_SIZE (64*1024)
> 
> to
> 
> #define SPLICE_SIZE ((64*1024)+1)
> 
> splice-cp hangs indefinitely when copying files sized 65537 bytes or
> more. It hangs on the first splice() call.
> 
> Is this a bug? I'd like to be able to copy much more than 64kb on a
> single splice call.
> 
> Thanks!
> Daniel


  reply	other threads:[~2006-10-30 19:11 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-10-30 16:39 splice blocks indefinitely when len > 64k? Daniel Drake
2006-10-30 19:11 ` Phillip Susi [this message]
2006-10-30 19:32   ` Daniel Drake
2006-10-30 19:55   ` Jens Axboe
2006-10-30 19:54 ` Jens Axboe
2006-10-30 21:08   ` Stephen Hemminger
2006-10-31  7:27     ` Jens Axboe

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