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From: Rob van Nieuwkerk <robn@verdi.et.tudelft.nl>
To: linux-kernel@vger.kernel.org
Cc: robn@verdi.et.tudelft.nl, Arjan van de Ven <arjanv@redhat.com>,
	Alan Cox <alan@redhat.com>
Subject: gcc-3.2.2 miscompiles kernel 2.4.* O_DIRECT code ?
Date: Tue, 17 Jun 2003 14:37:45 +0200	[thread overview]
Message-ID: <20030617123745.GA5717@verdi.et.tudelft.nl> (raw)

Hi,

I found out that O_DIRECT does not work correctly on 2.4 kernels
compiled with the RH gcc-3.2.2-5 on RH9.  It is working fine with
kernels compiled with the RH gcc-2.96-113 on RH 7.3.

The sympton is that read() only returns zeroes (as data).  No errors.
It happens with several 2.4 kernels I have tried, including 2.4.21-ac1.

I don't know if this is a RH9 gcc specific bug or if it is a generic
gcc3 problem. That's why I post here: to find out if more people
have seen this.

I also filed a bug in RH's bugzilla.  See this for more details:

	https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=97529


	greetings,
	Rob van Nieuwkerk

             reply	other threads:[~2003-06-17 12:23 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-06-17 12:37 Rob van Nieuwkerk [this message]
2003-06-17 14:01 ` Felipe Alfaro Solana
2003-06-17 16:29   ` Rob van Nieuwkerk

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