From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) (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 DB90C1FCCF8 for ; Wed, 1 Oct 2025 15:36:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=216.40.44.12 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759332984; cv=none; b=tHTrNCsTiq2ru7kgUDawfC1Lqm+Q58m1gDImtRR1Y5/3WMiE/nl76jaRErvJqteL96fs8NaBLGQ9eySRPLdk13uT/1CEPPWoaA32JVcTZRVCP2TjN249Qoa0RPsuzgSbze14KqCBfGWtYZiOyaD3HHLp0y4e6iuBsRbNi9jD9ts= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759332984; c=relaxed/simple; bh=92BdX1QKhhuJCLx5TFXxA+k5E3PjJXnl323g9dipW6E=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=B6Ay521foXgME6tGBW/xlFnwGy42Ipu/yiIIDg7T2mC7Cbf8oOoy5NwDHCIHdchfcxiU/AcYQRDlcaVzNrPlD390WzCc4XTnkeFH+HL8gvIjKIXY06oqUp1e0Kq5YAtsLQBCiLserE56bGVpMAOPRfYCAiM7wJVCouDB2P1MWO8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=goodmis.org; spf=pass smtp.mailfrom=goodmis.org; arc=none smtp.client-ip=216.40.44.12 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=goodmis.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=goodmis.org Received: from omf02.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay09.hostedemail.com (Postfix) with ESMTP id 8FB03833BF; Wed, 1 Oct 2025 15:36:21 +0000 (UTC) Received: from [HIDDEN] (Authenticated sender: rostedt@goodmis.org) by omf02.hostedemail.com (Postfix) with ESMTPA id B077C80009; Wed, 1 Oct 2025 15:36:19 +0000 (UTC) Date: Wed, 1 Oct 2025 11:37:57 -0400 From: Steven Rostedt To: Peter Zijlstra Cc: jpoimboe@kernel.org, rostedt@kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 06/12] unwind: Fix unwind_deferred_request() vs NMI Message-ID: <20251001113757.41beab91@gandalf.local.home> In-Reply-To: <20250924080119.005422353@infradead.org> References: <20250924075948.579302904@infradead.org> <20250924080119.005422353@infradead.org> 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: dhhjetgb5th4rptogqrzdw8endbt8rm5 X-Rspamd-Server: rspamout01 X-Rspamd-Queue-Id: B077C80009 X-Session-Marker: 726F737465647440676F6F646D69732E6F7267 X-Session-ID: U2FsdGVkX1/zmoOxKY9VOEZhOi2T4oOGZKJ1u8ATxvY= X-HE-Tag: 1759332979-661341 X-HE-Meta: U2FsdGVkX19/WPIEX3ZoOOCLTOcaznl6G8BlyEMJPyHzGgo/xmBOiK8KdgVKUgVwE1iiTWw8ChX8TFsy/brPL6/YtO9/O9W06wxRGDEkMlM/08mUoz8MBV8AJCWZPI9Cok+OBUyqIOT76bwNrYiVS4HtkPd9NiXoGR7awrhFlSq3zgPefbCisZcQpHdVIerF10L7iv03KrQTOxe6HYjC5Gch1WEFAV8dIp/7JDBLSOhf4dBHtm0ZaOvfrFDfVyfu/Bwg6XHrWp3BCmYvlcTiOdNa2N2Kg6WwvkQFgJhb5jYRAcPFDNRsH+9yRDHMlKsccTOk7LE7lTcAva+iydmc9R93uFGgzhqeqcMDtecpGQIx/qag6nxqpCT7diGLc3UvXp2kLPFPj6hXTas1VCTz1WYPxt+OvFFaC98yYdAGorwXjABXsbDrhCzplJX42STq On Wed, 24 Sep 2025 09:59:54 +0200 Peter Zijlstra wrote: > task_work_add(RWA_RESUME) isn't NMI-safe, use TWA_NMI_CURRENT when > used from NMI context. > > Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Steven Rostedt (Google) -- Steve