From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) (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 9998E361 for ; Sun, 25 Dec 2022 13:16:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1671974177; x=1703510177; h=message-id:date:mime-version:cc:subject:to:references: from:in-reply-to:content-transfer-encoding; bh=0AUUMSVBSULgI6+gop4YNd2amu+IyDWT9Tic3OuWVe0=; b=SAfNJ8OSueVP7rHxFBgaXzO5s5qzRGFlTY/0Z31XWURa+FsCe84mSs2G 0n8XZK2VNYGyO3J2qBuROFqvehK28XFSi9JZlwPT3JqDUB05qmCklzxr2 JIJQ61AFnEC0NiLhgoHRjGJRkN2pPhHGzmtUKtbvhn+sHisos+MFBZuT2 j2kVZ0VJSgMX/SiQoL6qku9h789VF7WuDBfcJwronxzDJEIjzzK+usSHt CTiARPh+Ncruqoq/r+qFHAXk3xAE9S2jyU37GfOhnJKNxrrra+RMgtiqd TqyOrY+DMA0/MUBT0LOs4QXob1wRclE2dYK8Bcc9AGYW+s2zEKU7o2hHT g==; X-IronPort-AV: E=McAfee;i="6500,9779,10571"; a="384892608" X-IronPort-AV: E=Sophos;i="5.96,273,1665471600"; d="scan'208";a="384892608" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Dec 2022 05:16:16 -0800 X-IronPort-AV: E=McAfee;i="6500,9779,10571"; a="652545816" X-IronPort-AV: E=Sophos;i="5.96,273,1665471600"; d="scan'208";a="652545816" Received: from blu2-mobl3.ccr.corp.intel.com (HELO [10.254.211.120]) ([10.254.211.120]) by orsmga002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Dec 2022 05:16:14 -0800 Message-ID: <6531c0eb-5ca7-9026-a8b7-eb4442629d0d@linux.intel.com> Date: Sun, 25 Dec 2022 21:16:12 +0800 Precedence: bulk X-Mailing-List: iommu@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.6.1 Cc: baolu.lu@linux.intel.com, dwmw2@infradead.org, iommu@lists.linux.dev, joro@8bytes.org, jroedel@suse.de, robin.murphy@arm.com, will@kernel.org, yangyingliang@huawei.com Subject: Re: [PATCH 1/2] iommu/vt-d: Fix PCI device reference count leak in has_external pci() To: Zeno Davatz , wangxiongfeng2@huawei.com References: Content-Language: en-US From: Baolu Lu In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 2022/12/25 20:11, Zeno Davatz wrote: > Hi > > I am getting this hang with kernel 6.1. See attachment. > > Is this related to your patch? > > Kernel 6.1 does not boot for me. Kernel 6.0 was fine. It seems unlikely. Have you located the patch through the bisect tool? Or does it boot well if you revert this patch? -- Best regards, baolu