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The following reply was made to PR kern/48787; it has been noted by GNATS.
From: "Thomas Schmitt" <scdbackup%gmx.net@localhost>
Subject: Re: kern/48787
Date: Tue, 06 May 2014 19:29:36 +0200
In case you want to convert the unpacked large.iso into a
sparse file with holes:
The data file extents are located between 2048-blocks
56 and 2114008.
Report layout: xt , Startlba , Blocks , Filesize , ISO image path
File data lba: 0 , 56 , 2097151 , 4329375744 , '/my/large_file'
File data lba: 1 , 2097207 , 16802 , 4329375744 , '/my/large_file'
I did on my virtual NetBSD:
dd if=/dev/cd0a bs=2048 count=56 of=/dvdbuffer/large.iso
dd conv=notrunc if=/dev/cd0a bs=2048 skip=2114008 seek=2114008 \
du increased by 864 blocks, file size and MD5 match the
original inflated ISO on the hosting system.
That's a cheap test object for a 4 GiB problem, i'd say.
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