From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=213.95.11.211 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793199398; b=bqN5ZCSJWJacxbAg4gdUDHkDCUB4vYNpoTw9fa7xBrdUg3vaSRpO3qtpLR9cMVnNfFtu ovlZ5nmKlXSqOcdEDl3CahxyY8pEeNLOm3mqZA9n3OqMWgwDe8ttbyVQvzgydqrgsuAiH Baov9R87cVmFrozDVGZ6ZI3kyJOZtfjJyLeQ7nFbCWCeng5aZRuGg1WB/EfmL5xSF7vBN XpLBDqhnSifm287J4ILa8hMh/gyTbqblk1rshQcfu36mx3RpdH3nTLo4P5XaEc6Eti80s BnCylAMYTIxEny//y9a5SOW6yPZNYq8tfJVo6dvndts30aF+leQoB8vcyYSlsXzbCYA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793199398; h=DMARC-Filter:Received:Date:From:To:Cc:Subject:Message-ID:References: MIME-Version:Content-Type:Content-Disposition:In-Reply-To:User-Agent; bh=rT4EsW428W7L/HXUKj32bjct/IMAM7+t4B6+nqzxxIE=; b=CLU/9HN5Z5k0YPggbC9li+IHkTfTMG2AaluAmUIgkm8xaB41cvoIhqRJeA8pJ7+PQYQ6 PIKE1CvoXEzXGX6DZk3GVhXrZGsyQCnvKWQcbMd2njF44tYQ0eApTx5vfejIe4L4+ri7w Z0tDJQEze1pxxruTPS7el8qka3uTJm1p+/TkWSQL9i6gTYxVjRequdhxBlLxr5sBFINIK 7MBwCyTFy/2jYDHhLCSG9bWYuqg/jEzJxKJ9eq+Nv0ij1DdYvmzUcc8kLVMbzWrzokdL5 /qO28e8g0fQAHvExBoJXyNb6d49g/I74eZ0NfF4Or59PS+7u8pqo24XFK6EOOmw9W7Q== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=lst.de; spf=pass smtp.mailfrom=lst.de; arc=none smtp.remote-ip=213.95.11.211 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EA991606A31D for ; Wed, 28 Oct 2026 14:56:37 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org EA991606A31D Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lst.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lst.de Received: by verein.lst.de (Postfix, from userid 2407) id 9F96F68D1E; Wed, 28 Oct 2026 15:56:30 +0100 (CET) Date: Wed, 28 Oct 2026 15:56:29 +0100 From: Christoph Hellwig To: Yuho Choi Cc: Keith Busch , Jens Axboe , Christoph Hellwig , Sagi Grimberg , linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v1] nvme-pci: shut down the controller if disabling the HMB fails on suspend Message-ID: <20261028145629.GA15112@lst.de> References: <20261022045828.1392332-2-oss.patchbox@gmail.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261022045828.1392332-2-oss.patchbox@gmail.com> User-Agent: Mutt/1.5.17 (2007-11-01) On Thu, Oct 22, 2026 at 12:58:18AM -0400, Yuho Choi wrote: > This was found by code inspection as part of ongoing, not yet > published research. It has not been reproduced on hardware. > Compile-tested only (x86_64 defconfig with BLK_DEV_NVME=y, W=1). Yeah, the only way this really should happen is a communication failure. But your handling looks correct, so: Reviewed-by: Christoph Hellwig