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2018 Nov 13
0
Re: [collectd] collectd leaks SIGCHLD == SIG_IGN into plugins
A quick glance shows that the exec plugin actually is clearing the signal mask:
https://github.com/collectd/collectd/blob/master/src/exec.c#L526
Can you give some more context when this problem comes up? Ideally in a Github
issue (hint, hint ;).
--
Florian octo Forster
Hacker in training
GnuPG: 0x0C705A15
http://octo.it/
2018 Nov 13
2
Re: [collectd] collectd leaks SIGCHLD == SIG_IGN into plugins
Hi,
thank you very much for reporting this! Sounds like a bug in the exec plugin –
it never ceases to amaze me how many issues a single plugin can have ;)
> > > This means that any plugin that does the usual pattern of:
> > >
> > > pid = fork ();
Note that the exec plugin is the *only* plugin that does this. All other
plugins are forbidden to fork(), popen() or
2018 Nov 13
4
Re: collectd leaks SIGCHLD == SIG_IGN into plugins
On Tue, Nov 13, 2018 at 10:04:33AM +0000, Daniel P. Berrangé wrote:
> On Fri, Nov 09, 2018 at 12:19:30PM +0000, Richard W.M. Jones wrote:
> > Peter Dimitrov and myself were debugging a very peculiar bug when
> > libguestfs is run as a plugin from collectd:
> >
> > https://www.redhat.com/archives/libguestfs/2018-November/thread.html#00023
> >
> > The long