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[2003:d5:ff34:db00:50f4:96ff:fe46:beef]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-442d67d5c35sm101844785e9.5.2025.05.11.13.04.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 11 May 2025 13:04:47 -0700 (PDT) Received: from localhost ([127.0.0.1]) by shift.daheim with esmtp (Exim 4.98.2) (envelope-from ) id 1uECsL-00000000RYg-3Q9R; Sun, 11 May 2025 22:04:46 +0200 Message-ID: <9086a511-bd3e-4a88-ad86-8c51d5a385ac@gmail.com> Date: Sun, 11 May 2025 22:04:46 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 6.12] Revert "um: work around sched_yield not yielding in time-travel mode" To: Johannes Berg , linux-kernel@vger.kernel.org, linux-um@lists.infradead.org Cc: benjamin.berg@intel.com, sashal@kernel.org, richard@nod.at, stable@vger.kernel.org References: <20250509095040.33355-1-chunkeey@gmail.com> Content-Language: de-DE, en-US From: Christian Lamparter In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 5/11/25 9:23 PM, Johannes Berg wrote: > On Fri, 2025-05-09 at 11:50 +0200, Christian Lamparter wrote: >> >> What's interesting/very strange strange about this time-travel stuff: >>> commit 0b8b2668f998 ("um: insert scheduler ticks when userspace does not yield") >> >> $ git describe 0b8b2668f998 >> => v6.12-rc2-43-g0b8b2668f998 >> > > Come to think of it, often you just want "git describe --contains": > > $ git describe --contains --match=v* 0b8b2668f998 > v6.13-rc1~18^2~25 yeah, I'm wondering if this 'git describe vs git describe --contains' could be the reason why the patch was AUTOSEL'd? I have no idea how Sasha's helper works though. As for UML: Your work is greatly appreciated. I've ran into this because OpenWrt is currently in the process of adapting to the 6.12 LTS: https://github.com/openwrt/openwrt/pull/18666 Cheers, Christian