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https://reviews.apache.org/r/63678/
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Review request for mesos, Benjamin Bannier and Jie Yu.
Bugs: MESOS-8159
https://issues.apache.org/jira/browse/MESOS-8159
Repository: mesos
Description
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`ns::clone` was implicitly using malloc to allocate a stack
after fork but before exec, where we should be avoiding
`malloc`.
Updated the second clone to use `os::signal_safe::clone`. We
still explicitly allocate a stack after the fork, but since
that is allocated with `mmap` is it safe in this particular
case.
Diffs
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src/linux/ns.cpp 33751b518e95f4f67e6864728e1fdf621f50dd52
Diff: https://reviews.apache.org/r/63678/diff/1/
Testing
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sudo make check (Fedora 26)
NOTE: I tried to avoid changing `ns::clone` too much in this patch because
[MESOS-8155](https://issues.apache.org/jira/browse/MESOS-8155) and
[MESOS-8156](https://issues.apache.org/jira/browse/MESOS-8156) are also going
to also hit this code.
Thanks,
James Peach
