From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BF70727CB06; Fri, 11 Jul 2025 09:58:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752227915; cv=none; b=X5BO/xTHdNcLq9hQhDr0RDShJyryevsyoOwEvFpr44Y49fECu8xpLCwyahBs+oQoip8YURLpKjO5gdzXSRTMkBiWucy1a/xMJyr8NVkQPXYEJTbQaIk6o8u2GY/j4O8QQyLk3eVUt+CfuLB8ehqpYyPu4YSV+QAtMQ6iQIBKMfY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752227915; c=relaxed/simple; bh=g1xrU+e1GsGmN+uweAiTje1VtKoc1T+zH6tvL1x68zk=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Vn6IVEht68GNS/nFFQLjR2TdqzjOnnWEHCak7g4KMFZdhIXtZ1q2ZqRou13LvIPsJnZeHbzloJCj63PkUcwn4vYaHk9KBcgWFc81GrsvPvKSLOrFOFvcbAqdBP7itzAC1Y6VOiu9Lb6REgeUnnw1qi4GqOGizjmf18V8Z7aV46o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=HVFdqbnc; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=rtxk43Wn; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="HVFdqbnc"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="rtxk43Wn" Date: Fri, 11 Jul 2025 11:58:30 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1752227912; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=g1xrU+e1GsGmN+uweAiTje1VtKoc1T+zH6tvL1x68zk=; b=HVFdqbncBetLRIYMMQ0nPvTUiPU/19OzfMPzPk1ZvzssCzMJjj4TncNehyxDUNOMjhPjjJ WeLXyxWsJhnveWJwiwWMQERpGgpduQb71xhcdL+OgOGL5AO0rXAWnchFc0/q/sTp12s8yD vCtI/lqhZN2SdHkq+MPZdIYAcXp9wTQZK3GbHme7ZAk8AxwiHJ14jfrpr5mp65bs6IU/ws eUv5QhffyxcidbtnEjXunF0O6OZw62J+4QagkhZekkzQCQUGoz/Xm8vxbP8P53mZuzQMrn 3aMvGu9jrDKuFbKjGZKixc10jsOY0W768SXl1lqRd2G1tBklqt9e5ITlzxkpnw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1752227912; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=g1xrU+e1GsGmN+uweAiTje1VtKoc1T+zH6tvL1x68zk=; b=rtxk43Wng2JyxZH/v9g3kK+T40NfuVpuNT8DdZPJlyeyCf05c7FZ0LXEmFQpGu0QnfUk1G SnIjFBftdF9YRxCA== From: Nam Cao To: Xi Ruoyao Cc: Christian Brauner , Frederic Weisbecker , Valentin Schneider , Alexander Viro , Jan Kara , Sebastian Andrzej Siewior , John Ogness , Clark Williams , Steven Rostedt , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rt-devel@lists.linux.dev, linux-rt-users@vger.kernel.org, Joe Damato , Martin Karsten , Jens Axboe Subject: Re: [PATCH v3] eventpoll: Fix priority inversion problem Message-ID: <20250711095830.048P551B@linutronix.de> References: <20250710034805.4FtG7AHC@linutronix.de> <20250710040607.GdzUE7A0@linutronix.de> <6f99476daa23858dc0536ca182038c8e80be53a2.camel@xry111.site> <20250710062127.QnaeZ8c7@linutronix.de> <20250710083236.V8WA6EFF@linutronix.de> <20250711050217.OMtx7Cz6@linutronix.de> <20250711-ermangelung-darmentleerung-394cebde2708@brauner> <6856a981f0505233726af0301a1fb1331acdce1c.camel@xry111.site> Precedence: bulk X-Mailing-List: linux-rt-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <6856a981f0505233726af0301a1fb1331acdce1c.camel@xry111.site> On Fri, Jul 11, 2025 at 05:48:56PM +0800, Xi Ruoyao wrote: > Sadly, still no luck. That's unfortunate. I'm still unable to reproduce the issue, so all I can do is staring at the code and guessing. But I'm out of idea for now. This one is going to be hard to figure out.. Nam