From: chrubis@suse.cz
To: Jan Stancek <jstancek@redhat.com>
Cc: ltp-list@lists.sourceforge.net
Subject: Re: [LTP] [PATCH/RFC] aiodio: make read_sparse use same mode as writers
Date: Wed, 21 Aug 2013 15:41:21 +0200 [thread overview]
Message-ID: <20130821134121.GA4729@rei> (raw)
In-Reply-To: <20130821102436.GA3894@rei>
Hi!
> The README in the testcases directory says that the tests explicitly
> tests for consistency between buffered I/O and O_DIRECT.
>
> I will consult some kernel guys if this was ever supported and we will
> either remove the tests or try to find a bug in the kernel.
I've looked at the test and what it does is:
1. create file and make sure it's empty
2. truncate it to defined size
3. parent starts writing zeroes to it with O_DIRECT
4. childs reads it and expect to get zeroes at any time
This should really work and I've been told by our filesystem guy that
this really looks like bug in the kernel (assuming that I haven't
overlooked something in the test source).
--
Cyril Hrubis
chrubis@suse.cz
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next prev parent reply other threads:[~2013-08-21 13:41 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-19 13:38 [LTP] [PATCH/RFC] aiodio: make read_sparse use same mode as writers Jan Stancek
2013-08-20 3:13 ` Wanlong Gao
2013-08-20 6:34 ` Jan Stancek
2013-08-20 6:44 ` Wanlong Gao
2013-08-20 7:06 ` Jan Stancek
2013-08-21 10:24 ` chrubis
2013-08-21 13:41 ` chrubis [this message]
[not found] ` <92780376.1937886.1377095931551.JavaMail.root@redhat.com>
2013-08-21 15:06 ` chrubis
[not found] ` <1843973614.1971535.1377606877922.JavaMail.root@redhat.com>
2013-08-27 12:58 ` chrubis
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