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doc: note that listening on SIGSEGV & co is unsafe #8410

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doc: note that listening on SIGSEGV & co is unsafe #8410

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doc: note that listening on SIGSEGV & co is unsafe
addaleax Sep 5, 2016
a83799e
[squash] reference manpage for kill(2)
addaleax Sep 8, 2016
46dddc1
[squash] describe what might happen when listening on these signals
addaleax Sep 8, 2016
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5 changes: 5 additions & 0 deletions doc/api/process.md
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Expand Up @@ -422,6 +422,11 @@ It is important to take note of the following:
* `SIGKILL` cannot have a listener installed, it will unconditionally terminate
Node.js on all platforms.
* `SIGSTOP` cannot have a listener installed.
* `SIGBUS`, `SIGFPE`, `SIGSEGV` and `SIGILL`, when not raised artificially
using kill(2), inherently leave the process in a state from which it is not
safe to attempt to call JS listeners. Doing so might lead to the process
hanging in an endless loop, since listeners attached using `process.on()` are
called asynchronously and therefore unable to correct the underlying problem.

*Note*: Windows does not support sending signals, but Node.js offers some
emulation with [`process.kill()`][], and [`ChildProcess.kill()`][]. Sending
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