From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D3EC6C43466 for ; Mon, 21 Sep 2020 14:52:15 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 6521E20735 for ; Mon, 21 Sep 2020 14:52:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Pva5EODi" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6521E20735 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Type: Content-Transfer-Encoding:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:To:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=KjUZ6FUk3Da9lo4SyyZGVtIYBrBgJK7aqB5wHEhj2ck=; b=Pva5EODipUbFiiwXAhy+T6eFI tK/FIniGprNHpaPTv1HUv4TiBvrtdZfzrVu50qwsKh7c35ttkCsI3RXDvB5xGtWB3J6tqo8qcpUTs MHk3eU+kvrZQMmpBtSQRROHwod/aR6HO9JIHoOFOgJlO5Cv/D7hxW5MJl7YfFJPhdy8UPulxjTFZR 8khuFifQg2QbtWuMzSfhuVKtgFG8w7NKgxaGkN3xZk9L6Gywb6CTScHoYIVq82ZKn9LhEcNLV2i7j EZ5xy992XQm2wqIC79W1MgVdlPggJl5sMMuF7YusrIgWx/ZX+X1aGhIIwBNPOTIoIqdhAwIZtaa5n UQBGu8AwA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kKNAB-00025S-JW; Mon, 21 Sep 2020 14:51:31 +0000 Received: from foss.arm.com ([217.140.110.172]) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kKNA8-00024f-VZ for linux-mtd@lists.infradead.org; Mon, 21 Sep 2020 14:51:30 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id B432D1476; Mon, 21 Sep 2020 07:51:27 -0700 (PDT) Received: from [10.57.43.251] (unknown [10.57.43.251]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 73BA33F718; Mon, 21 Sep 2020 07:51:24 -0700 (PDT) Subject: Re: arm-smmu 5000000.iommu: Cannot accommodate DMA offset for IOMMU page tables To: Naresh Kamboju , linux-mtd@lists.infradead.org, open list , Linux-Next Mailing List , lkft-triage@lists.linaro.org, "open list:IOMMU DRIVERS" References: From: Robin Murphy Message-ID: Date: Mon, 21 Sep 2020 15:51:24 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; rv:78.0) Gecko/20100101 Thunderbird/78.2.2 MIME-Version: 1.0 In-Reply-To: Content-Language: en-GB X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200921_105129_111289_0B89B677 X-CRM114-Status: GOOD ( 16.31 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Poonam Aggrwal , robh@kernel.org, Joerg Roedel , Arnd Bergmann , Richard Weinberger , Zhiqiang.Hou@nxp.com, Miquel Raynal , Suram Suram , masonccyang@mxic.com.tw Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org On 2020-09-21 14:20, Naresh Kamboju wrote: [...] > [ 2.256403] e1000e 0000:01:00.0: Adding to iommu group 0 > [ 2.261733] arm-smmu 5000000.iommu: Cannot accommodate DMA offset > for IOMMU page tables Ah, I know what's going on there - the dma_range_map stuff has overlooked a subtlety, but it's easily fixed. > [ 2.269752] Unable to handle kernel NULL pointer dereference at > virtual address 0000000000000000 ...although either way that's really not how we should subsequently handle failing to allocate a pagetable. I guess I'll take a look into what the deal is there as well :( Robin. > [ 2.278544] Mem abort info: > [ 2.281334] ESR = 0x96000004 > [ 2.284389] EC = 0x25: DABT (current EL), IL = 32 bits > [ 2.289705] SET = 0, FnV = 0 > [ 2.292759] EA = 0, S1PTW = 0 > [ 2.295900] Data abort info: > [ 2.298781] ISV = 0, ISS = 0x00000004 > [ 2.302618] CM = 0, WnR = 0 > [ 2.305581] [0000000000000000] user address but active_mm is swapper > [ 2.311941] Internal error: Oops: 96000004 [#1] PREEMPT SMP > [ 2.317512] Modules linked in: > [ 2.320566] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W > 5.9.0-rc5-next-20200921 #1 > [ 2.329352] Hardware name: Freescale Layerscape 2088A RDB Board (DT) > [ 2.335705] pstate: 60000005 (nZCv daif -PAN -UAO -TCO BTYPE=--) > [ 2.341715] pc : arm_smmu_flush_iotlb_all+0x28/0x90 > [ 2.346590] lr : iommu_create_device_direct_mappings.isra.0+0x1f0/0x218 > [ 2.353203] sp : ffff80001005b9b0 > [ 2.356511] x29: ffff80001005b9b0 x28: 0000000000000000 > [ 2.361822] x27: ffffdc3792e904e0 x26: ffff80001005ba48 > [ 2.367134] x25: ffff0082ee6b0000 x24: ffff0082ed88e0a8 > [ 2.372445] x23: 00000000fffffff4 x22: 0000000000001000 > [ 2.377755] x21: ffff80001005ba48 x20: 0000000000000000 > [ 2.383066] x19: ffff0082cceeeb58 x18: 0000000000000010 > [ 2.388377] x17: 0000000000000000 x16: 00000000833b5ff2 > [ 2.393688] x15: ffff0082ee6b0480 x14: 203a756d6d6f692e > [ 2.398999] x13: 3030303030303520 x12: 61646f6d6d6f6363 > [ 2.404311] x11: 6120746f6e6e6143 x10: 6f66207465736666 > [ 2.409622] x9 : ffffdc3791d31078 x8 : ffff0082ed8ffd00 > [ 2.414933] x7 : 0000000000000000 x6 : 000000000000003f > [ 2.420244] x5 : 0000000000000040 x4 : ffff80001005b970 > [ 2.425554] x3 : 0000000000000000 x2 : 0000000000000000 > [ 2.430865] x1 : ffffdc37927dd2f0 x0 : ffff0082cceeeb58 > [ 2.436176] Call trace: > [ 2.438618] arm_smmu_flush_iotlb_all+0x28/0x90 > [ 2.443144] iommu_create_device_direct_mappings.isra.0+0x1f0/0x218 > [ 2.449409] iommu_probe_device+0x6c/0x120 > [ 2.453501] of_iommu_configure+0x134/0x218 > [ 2.457683] of_dma_configure_id+0x110/0x2e8 > [ 2.461950] pci_dma_configure+0x4c/0xd8 > [ 2.465870] really_probe+0xac/0x4d8 > [ 2.469441] driver_probe_device+0xfc/0x168 > [ 2.473620] device_driver_attach+0x7c/0x88 > [ 2.477799] __driver_attach+0xac/0x178 > [ 2.481631] bus_for_each_dev+0x78/0xc8 > [ 2.485463] driver_attach+0x2c/0x38 > [ 2.489033] bus_add_driver+0x14c/0x230 > [ 2.492865] driver_register+0x6c/0x128 > [ 2.496696] __pci_register_driver+0x4c/0x58 > [ 2.500964] e1000_init_module+0x44/0x50 > [ 2.504882] do_one_initcall+0x4c/0x2d0 > [ 2.508714] kernel_init_freeable+0x214/0x280 > [ 2.513068] kernel_init+0x1c/0x120 > [ 2.516552] ret_from_fork+0x10/0x30 > [ 2.520124] Code: 910003fd a90153f3 aa0003f3 f85a8014 (f9400280) > [ 2.526224] ---[ end trace d051012f465b08ec ]--- > [ 2.530848] Kernel panic - not syncing: Attempted to kill init! > exitcode=0x0000000b > [ 2.538506] SMP: stopping secondary CPUs > [ 2.542431] Kernel Offset: 0x5c3781480000 from 0xffff800010000000 > [ 2.548521] PHYS_OFFSET: 0xffffdb6ac0000000 > [ 2.552700] CPU features: 0x0240022,21806008 > [ 2.556965] Memory Limit: none > > full test log, > https://lavalab.nxp.com/scheduler/job/86650#L849 > ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/