On Fri, Dec 14, 2007 at 05:21:31PM +0100, Jean-Marc Saffroy wrote:
> For an embedded system, I'm currently evaluating the robustness of ufs2
> write support on Linux, and my very first test, with fsx, shows serious
> problems.
>
> My test bed is a single CPU PC with a single IDE disk, that boots FreeBSD
> 6.2 and Ubuntu 7.10. The kernel on Ubuntu is a vanilla 2.6.23.9 with UFS2
> write support. fsx is from the freebsd cvs (with a small patch to build on
> Linux, see after my sig):
> http://www.freebsd.org/cgi/cvsweb.cgi/src/tools/regression/fsx/
>
I used fsx-linux.c from ext3-tools project, but ran it with
different options.
>
> Can anyone else confirm this problem?
>
Using your options I am able to reproduce this bug.
Looks like problem in ufs_alloc_lastblock, last page in file
contains zeros, but because of ufs_readpage, it can be contains
garbage. I will look at next week how it can be fixed.
--
/Evgeniy
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