[erlang-questions] beam.smp signal handling

[Jon Schneider]

Suggestion. Instead change the terminal with stty so that ^C no longer causes a break.

Jon

"Michał Ptaszek" <erlang@REDACTED> wrote:

>Hey,
>
>in order to avoid stupid mistakes on production we have disabled break
>signal handling for the VM by adding +Bi switch to the options passed
>to
>'beam.smp' command. As a result, if anyone is connect to the shell via
>pipe
>and hits CTRL+C - nothing should happen. In order to kill the node
>someone
>must intentionally run init:stop()/q() from inside of the node.
>
>Unfortunately, as a result, we are not able to handle USR1 signals
>anymore
>and thus not being able to generate crash dumps when the VM is stuck.
>If
>+Bi option is passed VM is terminated with "User defined signal 1"
>reason.
>
>Temporarily we can run the VM with +Bc switch however I was wondering
>if
>there is any other way to completely disable SIGINT, but not SIGUSR1
>signal
>handlers?
>
>Thanks,
>Michal
>
>
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