linux-ext4 - [Bug 13909] md5sum on 3GB file is constantly hanging

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Message-Id: <200908112235.n7BMZQ11010083@demeter.kernel.org>
Date:	Tue, 11 Aug 2009 22:35:26 GMT
From:	bugzilla-daemon@...zilla.kernel.org
To:	linux-ext4@...r.kernel.org
Subject: [Bug 13909] md5sum on 3GB file is constantly hanging

http://bugzilla.kernel.org/show_bug.cgi?id=13909





--- Comment #27 from Rus <harbour@...nx.od.ua>  2009-08-11 22:35:25 ---
1. The test from non-root user passes.
2. Testing as root on IMA enabled kernel passes only files up to some size,
seems like 1GB is limit. All files that are bigger - hangs forever. The below
1GB file test on IMA kernel - it completed in 4 seconds. But files more than
1GB (I've tested 2GB and 3GB) hangs forever - I was waiting for 10 minuites -
no success. 

[Hors]:rus:~ # time -p md5sum 1GB 
5430f5bdcde8f7c3c222df24eed64741  1GB
real 4.39
user 2.84
sys 1.45

It is very strange that such size limit is present and it is not configurable.
Or this is IMA bug.

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