linux-kernel - Re: v3.10 breaks T.tcflush (Was: tty: disassociate

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Message-ID: <20130925175612.GA26389@redhat.com>
Date:	Wed, 25 Sep 2013 19:56:12 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jslaby@...e.cz>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Peter Hurley <peter@...leysoftware.com>
Cc:	codonell <codonell@...hat.com>, Eduard Benes <ebenes@...hat.com>,
	Karel Srot <ksrot@...hat.com>,
	Matt Newsome <mnewsome@...hat.com>,
	linux-kernel@...r.kernel.org
Subject: Re: v3.10 breaks T.tcflush (Was: tty: disassociate_ctty() sends
	the extra SIGCONT)

On 09/25, Oleg Nesterov wrote:
>
> See lsb-test-core/lts_vsx-pcts/tset/POSIX.os/devclass/tcflush/tcflush.c
> attached below. test4() fails with
>
> 	SIGTTOU not received
> 	tcflush(TCIOFLUSH) action was performed
> 	when TOSTOP was set

Just in case... I do not really know if it was broken by 3.10 or earlier.

And of course, I do not know who is actually wrong, kernel or lsb.

Oleg.

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