Bug 1346369 - Wrong error message when out of processes
Summary: Wrong error message when out of processes
Alias: None
Product: Fedora
Classification: Fedora
Component: bash
Version: rawhide
Hardware: All
OS: Unspecified
Target Milestone: ---
Assignee: Siteshwar Vashisht
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2016-06-14 15:51 UTC by Ian Collier
Modified: 2017-02-13 07:26 UTC (History)
3 users (show)

Fixed In Version:
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Clone Of:
Last Closed: 2017-02-11 06:37:22 UTC
Type: Bug

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Description Ian Collier 2016-06-14 15:51:29 UTC
If you go...

$ ulimit -u 10
$ /bin/true

you get...

bash: fork: retry: No child processes
bash: fork: retry: No child processes
bash: fork: retry: No child processes
bash: fork: retry: No child processes
bash: fork: Resource temporarily unavailable

but "No child processes" is actually an error from wait(2), not from fork(2).
This is because bash tries to reap children before printing the error.
If that fails then you get whatever error wait(2) returned, but if it
succeeds then isn't errno technically undefined at that point (although
in practice on this system it keeps the error from wait(2))?

Tested in: bash-4.3.42-3.fc23.x86_64

Comment 1 Fedora End Of Life 2016-11-25 09:18:33 UTC
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Comment 2 Siteshwar Vashisht 2017-02-13 07:26:32 UTC
This was fixed by rebasing bash to version 4.4 in rawhide.

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