Dear Magnus Weis,
>Date: Thu, 9 May 1996 11:31:05 +0200
>From: Magnus Weis <weis@xxxxxxxxxxxxxxxxxxxxxxxx>
>Organization: .
>To: netcdfgroup@xxxxxxxxxxxxxxxx
>Subject: segmentation fault in drposix_putlong
>Keywords: 199605091033.AA23012
In the above message you wrote:
> I am trying to use netCDF for my work on numerical modelling of the
> Greenland ice sheet.
>
> So far, netCDF works very well. But it gives me segmentation faults
> when I trie to write more than three or four data sets into one single
> file (arrays have one unlimited dimension). It tried it under LINUX
> and also on an IBM RS6000 with AIX3.2. In both cases I get the same
> error, but at different times for both systems (but reproducable).
>
> While debugging netCDF I found the location where the error occurs in
> xdrposix.c:
>
> static bool_t
> xdrposix_putlong(xdrs, lp)
> XDR *xdrs;
> internal_netlong *lp;
> {
> #if SWAP
> # if SIZEOF_NETLONG != 4
> # include Unhandled condition: line=__LINE__, file=__FILE__
> # else
> ==> netlong nl = htonl((netlong)*lp); <=== !!! HERE IT IS !!!
>
Odd. I wouldn't think the statement indicated above could result in a
segmentation violation. Also, SWAP should be undefined on an IBM
RS/6000 system, so the above section of code shouldn't even be executing.
Would you please do to the following:
1. Go to your top-level, netCDF source directory.
2. Send me the output from the following commands:
uname -a
grep netlong config.status
grep NETLONG config.status
grep SWAP config.status
--------
Steve Emmerson <steve@xxxxxxxxxxxxxxxx>
