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Date: Tue, 22 May 2007 15:39:31 -0500
From: Eric Sandeen <sandeen@redhat.com>
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To: Jan Kara <jack@suse.cz>
CC: linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/6] UDF cleanup and fixes
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Eric Sandeen wrote:

> Jan -
> 
> I ran 2.6.21 + your udf patches from -mm through some udf tests which,
> oddly enough, can be found in the xfstests test suite in xfsprogs cvs
> from sgi.
> 
> It looks much better than before, but I was able to trip some of your
> asserts.  They were generated while fsx was running.  The good news,
> though, is that fsx passed.  :)  I haven't looked into it much further
> yet, but wanted to let you know.

Here's a short hacky testcase that trips the assert around line 123 of
udf/truncate.c  I'm looking into it but you may immediately see what the
problem is...?


#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>

int main(int argc, char ** argv)
{
        int fd;
        char buf[65536];

        fd = open("testfile", O_WRONLY|O_CREAT);
        lseek(fd, 16797, SEEK_SET);
        write(fd, buf, 22935);
        close(fd);

        fd = open("testfile", O_WRONLY);
        lseek(fd, 31281, SEEK_SET);
        write(fd, buf, 9592);
        close(fd);
}

-Eric