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From: Cyril Hrubis <chrubis@suse.cz>
To: Martin Doucha <mdoucha@suse.cz>
Cc: ltp@lists.linux.it
Subject: Re: [LTP] [PATCH] pty/pty07: Restore active console after the testrun
Date: Fri, 11 Mar 2022 11:06:25 +0100	[thread overview]
Message-ID: <YisfIWsrgxVt8xc2@yuki> (raw)
In-Reply-To: <8378e9dd-31a5-b39e-36cc-f3d3a1d41345@suse.cz>

Hi!
> >  static void cleanup(void)
> >  {
> > -	tst_fzsync_pair_cleanup(&fzp);
> > -	if (fd >= 0)
> > +	if (fd >= 0) {
> > +		tst_res(TINFO, "Restoring active console");
> > +		SAFE_IOCTL(fd, VT_ACTIVATE, vt_active);
> >  		SAFE_CLOSE(fd);
> > +	}
> > +
> > +	tst_fzsync_pair_cleanup(&fzp);
> 
> If you move the fzsync cleanup to the end of cleanup(), you can end up
> with the open_close() thread racing against fd cleanup.

Ah, right, looking closely at the fzsync, the thread B may be racing
against the restoration in the case that something caused premature exit
in the thread A.

Will move the call back to the start of the cleanup().

-- 
Cyril Hrubis
chrubis@suse.cz

-- 
Mailing list info: https://lists.linux.it/listinfo/ltp

  reply	other threads:[~2022-03-11 10:04 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-11  9:51 [LTP] [PATCH] pty/pty07: Restore active console after the testrun Cyril Hrubis
2022-03-11  9:56 ` Martin Doucha
2022-03-11 10:06   ` Cyril Hrubis [this message]
2022-03-22  8:13     ` Richard Palethorpe
2022-03-22  9:34       ` Cyril Hrubis
2022-03-22 11:41         ` Richard Palethorpe
2022-03-22 12:05           ` Cyril Hrubis

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