From: Peter Hurley <peter@hurleysoftware.com>
To: Oleg Nesterov <oleg@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jslaby@suse.cz>,
Linus Torvalds <torvalds@linux-foundation.org>,
codonell <codonell@redhat.com>, Eduard Benes <ebenes@redhat.com>,
Karel Srot <ksrot@redhat.com>, Matt Newsome <mnewsome@redhat.com>,
linux-kernel@vger.kernel.org
Subject: Re: v3.10 breaks T.tcflush (Was: tty: disassociate_ctty() sends the extra SIGCONT)
Date: Wed, 25 Sep 2013 20:06:58 -0400 [thread overview]
Message-ID: <52437AA2.5040907@hurleysoftware.com> (raw)
In-Reply-To: <20130925162125.GA18984@redhat.com>
On 09/25/2013 12:21 PM, Oleg Nesterov wrote:
> Peter, thanks for your explanations about tty_old_pgrp/etc,
> I'll try to reply later. I need to read your email carefully.
Ok.
If you're interested, I highly recommend reading Chapter 34
("Process Groups, Sessions, and Job Control") of Michael Kerrisk's
book, The Linux Programming Interface.
> FYI, LSB tests report another failure starting from 3.10.
>
> 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
>
> I'll try to investigate, but let me repeat I know absolutely nothing
> about drivers/tty/, termios, etc. Perhaps you can take a look? So far I
> didn't even look into the attached code, I have no idea what it does.
Thanks for the report. I looked into this and found another regression.
Patch coming.
Looks like I'll be integrating LSB into my testbench.
Regards,
Peter Hurley
next prev parent reply other threads:[~2013-09-26 0:07 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-15 15:50 [PATCH 0/1] tty: disassociate_ctty() sends the extra SIGCONT Oleg Nesterov
2013-09-15 15:50 ` [PATCH 1/1] " Oleg Nesterov
2013-09-16 22:16 ` Peter Hurley
2013-09-17 19:41 ` Carlos O'Donell
2013-09-17 20:30 ` Peter Hurley
2013-09-17 20:39 ` Peter Hurley
2013-09-21 18:34 ` Oleg Nesterov
2013-09-21 20:25 ` Peter Hurley
2013-09-22 20:03 ` Oleg Nesterov
2013-09-24 18:18 ` Peter Hurley
2013-09-25 16:21 ` v3.10 breaks T.tcflush (Was: tty: disassociate_ctty() sends the extra SIGCONT) Oleg Nesterov
2013-09-25 17:56 ` Oleg Nesterov
2013-09-26 0:06 ` Peter Hurley [this message]
2013-09-26 0:13 ` [PATCH] tty: Fix SIGTTOU not sent with tcflush() Peter Hurley
2013-09-26 0:24 ` Greg Kroah-Hartman
2013-09-26 16:36 ` Oleg Nesterov
2013-09-26 19:10 ` Oleg Nesterov
2013-09-26 21:18 ` Peter Hurley
2013-09-27 5:19 ` Karel Srot
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=52437AA2.5040907@hurleysoftware.com \
--to=peter@hurleysoftware.com \
--cc=akpm@linux-foundation.org \
--cc=codonell@redhat.com \
--cc=ebenes@redhat.com \
--cc=gregkh@linuxfoundation.org \
--cc=jslaby@suse.cz \
--cc=ksrot@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mnewsome@redhat.com \
--cc=oleg@redhat.com \
--cc=torvalds@linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.