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[2001:1c00:c1e:bf00:37a3:353b:be90:1238]) by smtp.gmail.com with ESMTPSA id q2sm4909796edv.93.2021.01.29.10.23.24 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 29 Jan 2021 10:23:24 -0800 (PST) Subject: Re: [5.11 regression] "tty: implement write_iter" breaks TIOCCONS To: Linus Torvalds Cc: Greg Kroah-Hartman , Linux Kernel Mailing List References: From: Hans de Goede Message-ID: <98e2806d-81af-baf7-00f4-5a43870ff514@redhat.com> Date: Fri, 29 Jan 2021 19:23:24 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.6.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, On 1/29/21 7:09 PM, Linus Torvalds wrote: > On Fri, Jan 29, 2021 at 6:54 AM Hans de Goede wrote: >> >> While testing 5.11-rc5 I noticed that flicker-free boot was no longer flicker free, >> when plymouth loads and tells systemd to start logging detailed messages these start >> showing upon the fbcon instead of being redirected to the ptmx which plymouth is >> trying to redirect the messages too. > > I think this should already be fixed in current -git by commit 9f12e37cae44. > > Can you check? So I just did the following 1. Started with my local tree (5.11-rc5 + patches I'm working on, nothing tty related) ( https://github.com/jwrdegoede/linux-sunxi/commits/master ) 2. Dropped the 2 reverts which I was carrying to workaround this locally 3. Cherry-picked 9f12e37cae44 4. Build + installed a new bzImage Unfortunately this does not resolve the problem, after this the problem is back. I can build a kernel from a clean torvalds/linux/master but I don't expect any different results from that. Let me know if you still want me to do a clean build to make sure this is not something in my local tree. Regards, Hans