linux-ext4 - Re: [PATCH 4/4] e2fsck: regression tests for INCOMPAT

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20110924185155.GG2779@thunk.org>
Date:	Sat, 24 Sep 2011 14:51:55 -0400
From:	Ted Ts'o <tytso@....edu>
To:	Andreas Dilger <adilger@...mcloud.com>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: [PATCH 4/4] e2fsck: regression tests for INCOMPAT_MMP feature

On Fri, Sep 23, 2011 at 05:38:44PM -0600, Andreas Dilger wrote:
> Add tests for the MMP feature - creating a filesystem with mke2fs
> and MMP enabled, enable/disable MMP with tune2fs, disabling the
> e2fsck MMP flag with tune2fs after a failed e2fsck, and e2fsck
> checking and fixing a corrupt MMP block.
> 
> The MMP tests need to be run from a real disk, not tmpfs, because
> tmpfs doesn't support O_DIRECT reads, which MMP uses to ensure
> that reads from the MMP block are not filled from the page cache.
> Using a local disk does not slow down the tests noticably, since
> they wait to detect if the MMP block is being modified.
> 
> Signed-off-by: Andreas Dilger <adilger@...mcloud.com>

Applied, although I needed to refrob the test names.  The first
character denotes not the test is for:

*) f_* tests are for e2fsck
*) m_* tests are for tune2fs
*) u_* tests are for e2undofs

This allows someone to test mke2fs by running the command:

	(cd tests; ./test_script m)

						- Ted
--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html