From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from fgwmail6.fujitsu.co.jp ([192.51.44.36]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1UDs7A-0002Qr-EC for kexec@lists.infradead.org; Fri, 08 Mar 2013 07:53:18 +0000 Received: from m3.gw.fujitsu.co.jp (unknown [10.0.50.73]) by fgwmail6.fujitsu.co.jp (Postfix) with ESMTP id 9F9A33EE0BD for ; Fri, 8 Mar 2013 16:53:09 +0900 (JST) Received: from smail (m3 [127.0.0.1]) by outgoing.m3.gw.fujitsu.co.jp (Postfix) with ESMTP id 85C6C45DEBA for ; Fri, 8 Mar 2013 16:53:09 +0900 (JST) Received: from s3.gw.fujitsu.co.jp (s3.gw.fujitsu.co.jp [10.0.50.93]) by m3.gw.fujitsu.co.jp (Postfix) with ESMTP id 6D0A545DEB7 for ; Fri, 8 Mar 2013 16:53:09 +0900 (JST) Received: from s3.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1]) by s3.gw.fujitsu.co.jp (Postfix) with ESMTP id 5F5A91DB803E for ; Fri, 8 Mar 2013 16:53:09 +0900 (JST) Received: from m1001.s.css.fujitsu.com (m1001.s.css.fujitsu.com [10.240.81.139]) by s3.gw.fujitsu.co.jp (Postfix) with ESMTP id 10DFA1DB803C for ; Fri, 8 Mar 2013 16:53:09 +0900 (JST) Message-ID: <513998A6.3030201@jp.fujitsu.com> Date: Fri, 08 Mar 2013 16:52:06 +0900 From: Takao Indoh MIME-Version: 1.0 Subject: Re: 3.9-rc1: crash kernel panic - not syncing: Can not allocate SWIOTLB buffer earlier and can't now provide you with the DMA bounce buffer References: <51397D1D.5030602@redhat.com> <1750036321.11235774.1362722613994.JavaMail.root@redhat.com> <51399154.5030500@redhat.com> <51399442.1080609@redhat.com> In-Reply-To: <51399442.1080609@redhat.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "kexec" Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: chaowang@redhat.com Cc: caiqian@redhat.com, yinghai@kernel.org, kexec@lists.infradead.org, linux-kernel@vger.kernel.org, hpa@linux.intel.com, dyoung@redhat.com, vgoyal@redhat.com (2013/03/08 16:33), WANG Chao wrote: > On 03/08/2013 03:27 PM, Yinghai Lu wrote: >> On Thu, Mar 7, 2013 at 11:20 PM, WANG Chao wrote: >>>> >>>> looks like your system DO have DMAR table, please enable dmar >>>> remapping in your kernel config. >>> >>> I've already got following config: >>> CONFIG_DMAR_TABLE=y >>> CONFIG_INTEL_IOMMU=y >>> CONFIG_IRQ_REMAP=y >>> >>> but I don't have intel_iommu=on in kernel cmdline. IIRC, iommu will prevent >>> 2nd kernel from booting ... >> >> Did you put intel_iommu=on on first and second cpu both? > > I tried, 2nd kernel didn't boot and keep splitting errors like these: > [ 2.106939] DMAR: No ATSR found > [ 2.110121] IOMMU 0 0xfed90000: using Queued invalidation > [ 2.115522] IOMMU 1 0xfed91000: using Queued invalidation > [ 2.120919] IOMMU: Setting RMRR: > [ 2.124162] IOMMU: Setting identity map for device 0000:00:02.0 [0xab800000 > - 0xaf9fffff] > [ 2.133099] IOMMU: Setting identity map for device 0000:00:1d.0 [0xaac95000 > - 0xaacb2fff] > [ 2.141305] IOMMU: Setting identity map for device 0000:00:1a.0 [0xaac95000 > - 0xaacb2fff] > [ 2.149503] IOMMU: Setting identity map for device 0000:00:14.0 [0xaac95000 > - 0xaacb2fff] > [ 2.157690] IOMMU: Prepare 0-16MiB unity mapping for LPC > [ 2.163011] IOMMU: Setting identity map for device 0000:00:1f.0 [0x0 - 0xffffff > [Errors, here we go] > [ 2.170932] dmar: DRHD: handling fault status reg 3 > [ 2.170933] PCI-DMA: Intel(R) Virtualization Technology for Directed I/O > [ 2.182486] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr ffffe000 > [ 2.182486] DMAR:[fault reason 05] PTE Write access is not set > [ 2.195705] dmar: DRHD: handling fault status reg 3 > [ 2.200570] dmar: DMAR:[DMA Read] Request device [00:02.0] fault addr ff873000 > [ 2.200570] DMAR:[fault reason 06] PTE Read access is not set > [ 2.213618] dmar: DRHD: handling fault status reg 3 > [..] This is the problem I'm working on. https://lkml.org/lkml/2012/11/26/814 Thansk, Takao Indoh _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec