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 631F429B233; Wed, 12 Nov 2025 21:57:30 +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=1762984651; cv=none; b=W1CkSBm96HGVPDj5xsTVUKcijsUzdOvkXTqSr7kW8BHXi5KigUhaSAUh51gB34ukzcCyDJMf9joo2nnZTiUOByacVGCb1PyrRY8D4JvamvgugmDtqBHzMqX9fiHwWK/3E8AbltT6p6NDLGB54w9GmMb8B0fx5/X+nhD8YHP/ae8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762984651; c=relaxed/simple; bh=mkOEgj2acWYW3QgEMNEaG8bU+/P170whur803Yam0ac=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=lVQSFz6G4WH2428dJMmcFJxHLuitZLRqq2l8lMtZZH2BR4gMq7u5T/hqD6YMKRvVy+NL7wMq8WbNJ1tLCR7QBXAiwtMd1bM3ZxxkkXugpQ/ZEsTzseqbuR+R92arK7pqo6SXghWX+5hAw4uzlJ4CthMCjqc7SOqE24p17jgpPFw= 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=MADdVJDY; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=GP6NBbif; 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="MADdVJDY"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="GP6NBbif" From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1762984648; 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=UQmPFrko68lFDC866Huq+wp9LzzLLlaGuL5IsTID5Qo=; b=MADdVJDYEPVjXl5hUf/4cAxdxnWEfoHCpsGhFnByHQKhbWtOomd23WXTn5ZGWVvQnLdmN0 oz1iaNVvtd3kvhbgTWU5AYMPQjimP3jkntioflV2bqg1smN3HanPuLzwN1m3j5YoRIXZyC ytyLBVXaoTRXiPXwOGONNl1Jb6gZKSE7tvd65MJbXxEzZfpb+dyvc6q4qJYQNx2sL3YLLV j8I4jVJdmVPpO+3LWCiGI++LsnW+IqmvfMUNI+/sFphH2p4+egQtS8S534675Uj5RYvGAK Hq7ovANEDkNY//7SMy51HoHpp3PLm+PlgF+dZDcUwdccJIRkcWOG0q7Y6ZfgTQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1762984648; 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=UQmPFrko68lFDC866Huq+wp9LzzLLlaGuL5IsTID5Qo=; b=GP6NBbifM+KA2vlmk1e9Cn8NhjUfqZKJ3EdLeRmag3DNGdhKPsPncSfvpG2zXgp6mp2iIC Of1ATE8jlCJ9KWCA== To: Prakash Sangappa , Mathieu Desnoyers Cc: LKML , Peter Zijlstra , "Paul E. McKenney" , Boqun Feng , Jonathan Corbet , Madadi Vineeth Reddy , K Prateek Nayak , Steven Rostedt , Sebastian Andrzej Siewior , Arnd Bergmann , "linux-arch@vger.kernel.org" Subject: Re: [patch V3 00/12] rseq: Implement time slice extension mechanism In-Reply-To: References: <20251029125514.496134233@linutronix.de> <03687B00-0194-4707-ABCB-FB3CD5340F11@oracle.com> <2eee5e37-e541-4ac7-9479-cef3e62f234d@efficios.com> Date: Wed, 12 Nov 2025 22:57:27 +0100 Message-ID: <87cy5mewxk.ffs@tglx> Precedence: bulk X-Mailing-List: linux-arch@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain On Wed, Nov 12 2025 at 06:30, Prakash Sangappa wrote: > The problem reproduces on a 2 socket AMD(384 cpus) bare metal system. > It occurs soon after system boot up. Does not reproduce on a 64cpu VM. Can you verify that the top most commit of the rseq/slice branch is: d2eb5c9c0693 ("selftests/rseq: Implement time slice extension test") Thanks, tglx