From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) (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 4CE6B4AF14C; Thu, 3 Sep 2026 13:19:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=216.40.44.14 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788441600; cv=none; b=YiSj51n66tRoJlVltfttL1QwywWKvcNz1ojZqDJz4PyccK90FbgoNRjAtZoVc4zpjLqCRHxjSRYeWoyyXn4QB9VdOTHia5XxxGPBYFd4l3MgfKr6wu0QU2fPOKLf3HUXNGplzg9f8XTTTrpi5RaGlQIlfSKTFCu3t1GKoaO23d0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788441600; c=relaxed/simple; bh=kbj6AMyiVAbFtydzrvgZcyhMYQC25piDXUOE8D5G4v4=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Hp0GVsHe1Bxakfqfc4DhjkFXeR87wgD59D+tAIo91iGQiBLw783jh+6DKxsCdYjhvY4FdkJDgFaJtXgeKI348xGX2goLtKaYZu19ks10+p9Z0sxbdKklbYL9+9bS7U7FIUFxHsEGfWrZZRaMmodV2j9YvzXFkSNa5MJcllb5jVA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=goodmis.org; spf=pass smtp.mailfrom=goodmis.org; dkim=pass (1024-bit key) header.d=goodmis.org header.i=@goodmis.org header.b=QAGPVoQ8; arc=none smtp.client-ip=216.40.44.14 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=goodmis.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=goodmis.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=goodmis.org header.i=@goodmis.org header.b="QAGPVoQ8" Received: from omf02.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay08.hostedemail.com (Postfix) with ESMTP id E4EDE14052A; Thu, 3 Sep 2026 13:19:36 +0000 (UTC) Received: from [HIDDEN] (Authenticated sender: rostedt@goodmis.org) by omf02.hostedemail.com (Postfix) with ESMTPA id 0639B8000E; Thu, 3 Sep 2026 13:19:34 +0000 (UTC) Date: Thu, 3 Sep 2026 09:20:37 -0400 From: Steven Rostedt To: Thorsten Leemhuis Cc: Peter Zijlstra , Martin King , regressions@lists.linux.dev, linux-kernel@vger.kernel.org, stable@vger.kernel.org, linux-rt-users@vger.kernel.org Subject: Re: [REGRESSION] sched/rt: NO_RT_PUSH_IPI causes multi-second PI-boost starvation in pro-audio workloads (dd29c017aed6) Message-ID: <20260903092037.5b739980@gandalf.local.home> In-Reply-To: <6db9c47f-a1f8-49dd-9e80-f9014d75f9e8@leemhuis.info> References: <20260814183652.611e7ecf@gandalf.local.home> <6db9c47f-a1f8-49dd-9e80-f9014d75f9e8@leemhuis.info> X-Mailer: Claws Mail 3.20.0git84 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Stat-Signature: n7gg1dkmn3igakffpjb4hy3jiraagsra X-Rspamd-Server: rspamout08 X-Rspamd-Queue-Id: 0639B8000E X-Session-Marker: 726F737465647440676F6F646D69732E6F7267 X-Session-ID: U2FsdGVkX19SV2aoloGzEWFLE1rcYw0EtPVdoEjm/70= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=goodmis.org; h=date:from:to:cc:subject:message-id:in-reply-to:references:mime-version:content-type:content-transfer-encoding; s=dkim1; bh=kbj6AMyiVAbFtydzrvgZcyhMYQC25piDXUOE8D5G4v4=; b=QAGPVoQ8d1h0loQUCSQc/mijJongP3octDBnDmVjmdGhW7bSwbc7aICdUYTzWiTSIANpIJTq16CX8ISBdntkSR8535bZoGMPQD9RF1JSeGc5r1rECp6pa1KKVBJIcW0x5fshJEP2r5GT2LJnygN8iXB6uBJHSTYqF0i0AMWvneE= X-HE-Tag: 1788441574-241105 X-HE-Meta: U2FsdGVkX1+jM1TGt04JbL22BGmUazuhm/NuZrOObeLobyj/AWwZNm3HXS/xfQMc8rpIOfUc7cBEk7KUBLVBvIR/dENp1enor7PgbTVy+sr2vq50OTkTxnfm/DSkS19ntIsqPSs1CkMO/Y9ZGahgIltNJKm5MG7gQqi/VHbi0hBI0DW5ZDLL9PWidRBcwZIGr7V4t2BPk57onaCKiA9k3WPelfI9PJG4CJyKlbDb8wp1wLt79ou1rt4A0qusYKB4zsuBnV6uEoSTve4laooUKQmm65cFuNpIU28bgEk65fQkQB+p1siGC5rAxFPjMxGBza9Gy27WuAd+UR/cdde3aGBJFTnmSm2FFNxBEwTc0jbQ9E6E3vlwAwxcgQ6f2dxU On Thu, 3 Sep 2026 13:27:59 +0200 Thorsten Leemhuis wrote: > This made it to my list of tracked regression -- but it looks like there > was no progress for a while. Is that the case? Steven, did that maybe > fall through the cracks due to the travel you mentioned? Or was this > resolved meanwhile and I just missed it? No, I was traveling during this and now I'm way behind in other work. I'm not sure when I'll get to look at it. Feel free to keep pinging me about it ;-) -- Steve