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Re[5]: Subshell exit trap is not invoked if shell exit trap also set
From: |
Konstantin Andreev |
Subject: |
Re[5]: Subshell exit trap is not invoked if shell exit trap also set |
Date: |
Tue, 26 Mar 2019 21:12:09 +0300 |
User-agent: |
Mozilla/5.0 (X11; SunOS i86pc; rv:31.0) Gecko/20100101 Thunderbird/31.6.0 |
btw, I can undertake some debugging, but I have no time to investigate how the
bash code works.
If you may provide me with enough details so that I would know where to look
into the control flow, I would investigate what's happening.
Regards, Konstantin
Konstantin Andreev, 26 Mar 2019 19:44 MSK:
Just built and tested it. The systems are x86-64.
+ Debian GNU/Linux buster/sid (pre-10): works (both exit traps are invoked)
- CentOS Linux 7.2.1511: NOT work (subshell exit trap is NOT invoked)
- Oracle Solaris 11.3: NOT work (subshell exit trap is NOT invoked)
What can I do to help you isolate this issue?
Chet Ramey, 26 Mar 2019 16:57 MSK:
I can't reproduce this using RHEL 7 or Mac OS X using bash-5.0.3.
Konstantin Andreev, 25 Mar 2019 22:48 MSK:
[ ... skip ...]
Terminal A Terminal B
---------- -----------
| $ ./ssxtrap
| ext pid=10373
| int pid=10374
| $ kill 10374
| ./ssxtrap: line 10: 10374 Terminated ...
| subshell done
| ext exit trap in 10373
i.e. subshell exit trap is not invoked anymore.
Since subshell exit trap shall not depend from main shell exit trap, this
behaviour looks like a bug for me.
Re: Subshell exit trap is not invoked if shell exit trap also set, Dmitry Goncharov, 2019/03/26