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Re: Issue when using job control and SIGCHLD with bash 4.3 (trap is not
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From: |
Chet Ramey |
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Subject: |
Re: Issue when using job control and SIGCHLD with bash 4.3 (trap is not being run) |
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Date: |
Mon, 14 Apr 2014 17:05:48 -0400 |
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User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 |
On 4/14/14, 4:25 PM, Eduardo A. Bustamante López wrote:
> Hi,
>
> I was playing with set -m and trapping CHLD in a script, and found
> the following error:
Thanks for the report. I'll take a look.
> As you can notice, bash 4.3 exits earlier. It should do 5 iterations,
> but instead, it only completes 3. I found that is has something to do
> with using queue_sigchld_trap instead of run_sigchld_trap, which I
> assume fixes another issue, but the fix introduced this error.
It may have something to do with that, but the attached patch is not the
correct one: you can't run arbitrary functions in a signal handler
context.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU chet@case.edu http://cnswww.cns.cwru.edu/~chet/