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Created attachment 550331 [details]
test case

Description of problem:

If in a 'perl' script, a successful open/die/close
sequence is followed by a system/die sequence,
an expected perl internal error triggers the
die clause in the system/die call even when
the call to system is successful.

The call to open issues an ioctl(TCGETS) to test
if the newly opened file is a tty device and
receives an errno ENOTTY 25 (Inappropriate ioctl for device).
This error persists somehow such that it incorrectly
triggers the die clause later on.

Version-Release number of selected component (if applicable):

Several version of 'perl' including 5.8.8
(RHEL5) and 5.8.10 (RHEL6).

How reproducible:

Run the attached test case.

Actual results:

test fails with "error executing date Inappropriate ioctl for device"

Expected results:

test should succeed

Created attachment 550332 [details]
strace showing details of issue

Reported upstream:

https://rt.perl.org/rt3/Public/Bug/Display.html?id=107420

Bad script rather than perl bug.  Sorry for the erroneous report.

Thanks for clearing this issue with upstream. I'm closing it as NOTABUG - Successful system calls do not (necessarily) reset $!, so your script is
just printing out the existing value of $! after a successful system().