[GRASS5] mysterious disk full error in r.resamp.rst
glynn at gclements.plus.com
Thu Apr 14 23:02:58 EDT 2005
Markus Neteler wrote:
> we have an error when using r.resamp.rst to downsample
> a raster map:
> Not enough disk space--cannot write files
> Is it possible that the fwrite() in main.c of r.resamp.rst doesn't report
> the correct error (since we have plenty of disk space)? Which error
> could it be (in general the module seems to work)?
Looking at the code, you will get tat error message if fwrite() fails
for any reason.
if (!(fwrite (zero_array_cell, sizeof (FCELL), nsizc, Tmp_fd_z)))
clean_fatal_error ("Not enough disk space -- cannot write files");
There may be other limitations, e.g. process resource limits
(corresponding to "ulimit -f"), quotas, or reservations (on ext2fs,
typically 5% of each partition is reserved for root, but the amount
can be changed via tune2fs).
Or there may be other errors, e.g. an I/O error (bad sector) or an
attempt to write beyond the 2GiB limit (if the file is sparse, it
doesn't need to actually use 2GiB of disk space).
Glynn Clements <glynn at gclements.plus.com>
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