kern/103321: create_compressed_fs error ( Zlib memory allocation
error ? )
mrhsaacdoh at yahoo.com
Sun Sep 17 01:20:17 PDT 2006
>Synopsis: create_compressed_fs error ( Zlib memory allocation error ? )
>Arrival-Date: Sun Sep 17 08:20:13 GMT 2006
>Originator: Angelescu Ovidiu
>Release: FreeBSD-6.1 Release
FreeBSD RoFreeSBIE 6.1-STABLE FreeBSD 6.1-STABLE #0: Sat Sep 9 03:44:09 UTC 2006 root at RoFreeSBIE:/usr/src/sys/i386/compile/RoFreeSBIE_Live_CD i386
I am the RoFreeSBIE developer ( the first Live DVD FreeBSD based )and working at
it i have encontered an error.
For RoFreeSBIE i need compressed iso9660 images to be decompressed on the fly by
For doing the compressed iso_images i have installed cloop-utils-2.01.2.
When i need to compress a large file tree create_compressed_fs give
the following error when the create_comppressed_fs used memory is greater than 500MB:
Error -4 compressing block blocknumber !
As I have saw in /usr/src/lib/libz that error is a memory alocation error.
I mention that the computer have 2GB of ram and in the compression process and the system don't use swap.
Also trying to compress a file tree about three time greater in linux with the same cloop-utils-2.01.2 it was working.
Install a FreeBSD System ,mkisofs and cloop-utils-2.01.2 .
Try to make a compressed iso image using create_compressed_fs for a large file tree > 2GB .
When the used memory by create_compressed_fs is about 500MB the create_compressed_fs crashes with error -4 wich seems to be a zlib or kernel bug.
I have tested that only on an i386 architecture.
Don't know until yet !
More information about the freebsd-bugs