• Subject: Re: RNX1251 (Perm I/O error on display file) bugger headache
  • From: Buck Calabro <kc2hiz@xxxxxxxxx>
  • Date: Tue, 5 Feb 2019 16:02:14 -0500
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On 2/5/2019 2:06 PM, Dan wrote:

We have an application that rarely bombs with RNX1251 (major return code 80
and minor return code C0).

-snip-

The description for RNX1251 says that "If the major return code is 80 then
a system or file error occurred and programmer action is required to fix
the problem." It gives no indication of what minor return code C0 means.

Is it possible that splitting the EXFMT into WRITE and READ operations
might help? (A question for Barbara?) If for no other reason, I'd encase
each of them in a MONITOR block. Maybe retry 3 times to see if it resolves
it?

Most of the times I see this, it is because the end user has closed the
emulator session with the Windows X before signing off.

IMO, the 'programmer action' referred to is error trapping. Put a
monitor around the EXFMT and trap the I/O error and gracefully terminate
the program rather than let the system brute force it.


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