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Re: pkg/48271: mysqld (5.5) startup fails during boot if console login is started
The following reply was made to PR pkg/48271; it has been noted by GNATS.
From: David Holland <dholland-pbugs%netbsd.org@localhost>
Subject: Re: pkg/48271: mysqld (5.5) startup fails during boot if console
login is started
Date: Wed, 9 Oct 2013 04:29:30 +0000
On Fri, Oct 04, 2013 at 09:30:00AM +0000,
> Mysql server is monitored by a shell script called mysqld_safe
> that wil try to restart the server if it terminates in an
> unexpected way.
> This scripts writes messages on stdout.
> But after the getty is started on /dev/console, stdout of this
> script has been revoked and any write will fail. When
> mysqld_safe tries to write, SIGPIPE is triggerd. SIGPIPE is
> not ingnored, so default action is taken that will immedialy
> kill the process.
... I wouldn't have expected /dev/console to generate SIGPIPE.
Certainly ptys don't; you get EIO. And other stuff that opens the
console during boot normally gets to keep writing to it (AFAICR).
David A. Holland
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