Lock up

Hi,

Does anyone have any suggestions what could be wrong ?

My target is a DSP Designs PC104 TP300 CPU. I have created a working boot
image that provides FTP, Telnet and WWW servers using Slinger. It uses the
Tiny TCP/IP stack.

I have written a CGI executable in C that reads data from an Diamond Systems
Analogue Input module and presents the data in html form.

The target is connected to our internal LAN and from any system on the LAN
using IE we can look at the pages created by the target. This works
perfectly and I have left it running for hours without problem. The target
has 32MB of SDRAM.

The pages use the meta tag cache refresh to automatically update them every
5 seconds. The problem is that I have left the target running over the
weekend twice with a browser `getting’ the page from the target only to find
when I return after the weekend that the target has completely locked up.
The target has completely locked, it cannot be pinged and the console
doesn’t respond.

I am wondering if there is some sort of resource issue in the CGI such as a
memory leak which I will investigate, however I wouldn’t expect this to lock
the entire OS.

Thank you,

Simon Platten, Senior Software Engineer

VT Controls
Bessemer Way, Harfreys Industrial Estate, Great Yarmouth, Norfolk, NR31 0LX.
Tel: (0)1493 668811 Fax: (0)1493 651137
Email: simon.platten@vtcontrols.co.uk

Any views or opinions expressed are solely those of the author and do not
necessarily
represent those of VT Group, its holding company or any of its subsidiaries
or associates.

What network driver are you using?

Simon A. Platten <simon.platten@vtcontrols.co.uk> wrote:

Hi,

The pages use the meta tag cache refresh to automatically update them every
5 seconds. The problem is that I have left the target running over the
weekend twice with a browser `getting’ the page from the target only to find
when I return after the weekend that the target has completely locked up.
The target has completely locked, it cannot be pinged and the console
doesn’t respond.

I am using:

io-net -d crys8900 duplex=0 -pttcpip if=en0:129.0.1.39:255.255.255.0
default=129.0.1.254

I don’t think the problem has anything to do with the CGI as I’ve since left
the target booted with no applications running, just booting straight into
the OS and it still locks up after a day.

Regards,
Simon

“kirk” <kirussel@NOSPAMrogers.com> wrote in message
news:ate7ms$9ar$1@inn.qnx.com

What network driver are you using?

Simon A. Platten <> simon.platten@vtcontrols.co.uk> > wrote:
Hi,

The pages use the meta tag cache refresh to automatically update them
every
5 seconds. The problem is that I have left the target running over the
weekend twice with a browser `getting’ the page from the target only to
find
when I return after the weekend that the target has completely locked
up.
The target has completely locked, it cannot be pinged and the console
doesn’t respond.

Simon

We had an Advantech embedded biscuit PC that did the same, thought it might
be QNX, but did the same thing under Windows. Sent it back a number of times
nothing was resolved, just use to lock up for no apparent reason. Guess it
was a hardware fault.

Rod