[Pvfs2-users] pvfs-2.6.1 client compilation error

[Murali Vilayannur]

Hi Rob, Vikrant,
You can apply this patch. It should fix the build errors..
Actually, it turns out that the assert was also buggy in one other
place.. So it was good that this came up.
As regards to mmap-racache: I havent seen any problems with it since
it is primarily triggered only for executables being run off pvfs2
volumes. That does not mean there are no bugs in it, but it would be
great if someone can report any bugs if they stumble across it with
that code path.
thanks,
Murali

On 1/4/07, Robert Latham <robl at mcs.anl.gov> wrote:
> On Thu, Jan 04, 2007 at 09:26:11PM +0530, Vikrant Kumar wrote:
> > pvfs-2.6.1 fails while doing "make kmod". Any clues? Here is a small
> > snippet of the error.
> >
> >  CC
> > /home/packages/sources/pvfs-2.6.1/src/kernel/linux-2.6/pvfs2.mod.o
> >  LD [M]
> > /home/packages/sources/pvfs-2.6.1/src/kernel/linux-2.6/pvfs2.ko
> >  CC            src/apps/kernel/linux/pvfs2-client-core.o
> > src/apps/kernel/linux/pvfs2-client-core.c: In function
> > `post_io_readahead_request':
> > src/apps/kernel/linux/pvfs2-client-core.c:1417: error:
> > `pvfs2_bufmap_desc_count' undeclared (first use in this function)
> > src/apps/kernel/linux/pvfs2-client-core.c:1417: error: (Each
> > undeclared identifier is reported only once
> > src/apps/kernel/linux/pvfs2-client-core.c:1417: error: for each
> > function it appears in.)
> > make: *** [src/apps/kernel/linux/pvfs2-client-core.o] Error 1
> > deva02:/home/packages/sources/pvfs-2.6.1 # ls src/apps/kernel/linux/
>
> Hi Vikrant.
>
> That code (post_io_readahead_request) is protected by an ifdef (#ifdef
> USE_MMAP_RA_CACHE).   did you configure pvfs with
> --enable-mmap-racache ?
>
> The short-term workaround might be to re-run configure without that
> option.
>
> It's definitely a bug on our end that we don't even compile when
> mmap-racache is selected, but be warned that even if we fix the
> compile issue, there were at one time some bugs with the mmap
> readahead cache.
>
> ==rob
>
> --
> Rob Latham
> Mathematics and Computer Science Division    A215 0178 EA2D B059 8CDF
> Argonne National Lab, IL USA                 B29D F333 664A 4280 315B
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>
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