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=-9.9 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1,USER_IN_DEF_DKIM_WL 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 CB86AC433E0 for ; Fri, 19 Jun 2020 20:56:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A427520B80 for ; Fri, 19 Jun 2020 20:56:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="VuI4Xr4X" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391536AbgFSU4c (ORCPT ); Fri, 19 Jun 2020 16:56:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54404 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389280AbgFSU4b (ORCPT ); Fri, 19 Jun 2020 16:56:31 -0400 Received: from mail-pl1-x642.google.com (mail-pl1-x642.google.com [IPv6:2607:f8b0:4864:20::642]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7AD1FC06174E for ; Fri, 19 Jun 2020 13:56:31 -0700 (PDT) Received: by mail-pl1-x642.google.com with SMTP id n9so4402628plk.1 for ; Fri, 19 Jun 2020 13:56:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:from:to:cc:subject:in-reply-to:message-id:references :user-agent:mime-version; bh=6ZywDktM8pXlb5fMixw8rrzeWS4t9uFID6XIjv74YaI=; b=VuI4Xr4X0Pm3ZLkLxP9KgFz1iQK+tNUvZUmzaR1YcSNHYG5cg2Ths1TAPJAjczSlz9 kGNClG4tj2wgp4rcnJaS83as67DEjWLSS9EX8W+2FYHPV+3NR0eIS326w2ttGJM+6xqW 6z9iQpxVU6sxlaNXLxJZLTObHOgm72L9wQHEVdJ3ElibtoOS4Vt1ovwv6q3v9ToWreYJ Z+4+2AXg46fCGpaPuDxhQO+xTOsmOeIG/uLz4m51MZPXGQzzn9XpI3X/4tLmJhafcchN XfG9ZHJYhtiMymiRlFlIYwlw+qk8FP51l6J+9PJDgfc0ookZBiNwNf1YVdMUrBbGfEzn Ewig== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:in-reply-to:message-id :references:user-agent:mime-version; bh=6ZywDktM8pXlb5fMixw8rrzeWS4t9uFID6XIjv74YaI=; b=G4INaCnr/uitBXtUGIHASe15gn1Ia8URxUZa6W0XC0aaPlOxwP64ba4yKf4MQjCJ78 sPIeBBzj9zlIoJMV/Ns5gsOYn7dV+NR/yRjJVYPw5MLlPoRBrmrdO5OqChh6JqaiWRbr Z79ZpNVOqlJublkzMmKM7A6GvhhAL3GVvlq/t83P9gm+Xk+9BtgNLLWMdrKlMN6L8tiF St6fTmKKnEoqJoYOthFbHXMwx4+Yjw/X6qeseTrDkZyFv79VbzO3PFrrgHdd3q8U8mEt FiL13PcBrj4PIG78KTVLs7pFFrw8gQNtie4t6Gr5uZXspqNQYYZS68fNLpPpzGJLKWA3 AutA== X-Gm-Message-State: AOAM532O5xkcsO6Vb3spLAzXIiiIj3FlWK9OV5bUBwIjuFZXNH8YaLYa flMUGO8IEjADTtXi6oAi9/PVtg== X-Google-Smtp-Source: ABdhPJzhQVw6JDXXU9VTCJdrrtZbR9c4S55qPEclhLyoE6Jr2jZT95JIsmWaWnPBg6D2eplPm/7UZw== X-Received: by 2002:a17:902:968b:: with SMTP id n11mr9392874plp.331.1592600190725; Fri, 19 Jun 2020 13:56:30 -0700 (PDT) Received: from [2620:15c:17:3:3a5:23a7:5e32:4598] ([2620:15c:17:3:3a5:23a7:5e32:4598]) by smtp.gmail.com with ESMTPSA id b7sm6530221pfo.202.2020.06.19.13.56.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 19 Jun 2020 13:56:28 -0700 (PDT) Date: Fri, 19 Jun 2020 13:56:28 -0700 (PDT) From: David Rientjes X-X-Sender: rientjes@chino.kir.corp.google.com To: Roman Gushchin cc: Andrea Arcangeli , Yang Shi , iommu@lists.linux-foundation.org, Joerg Roedel , Linux Kernel Mailing List , Linux MM , Michal Hocko , Johannes Weiner , "Kirill A. Shutemov" , Andrew Morton , Wei Yang Subject: Re: kernel BUG at mm/huge_memory.c:2613! In-Reply-To: <20200619185540.GB217189@carbon.lan> Message-ID: References: <20200619001938.GA135965@carbon.dhcp.thefacebook.com> <20200619011449.GC135965@carbon.dhcp.thefacebook.com> <20200619024026.GB21081@redhat.com> <20200619185540.GB217189@carbon.lan> User-Agent: Alpine 2.22 (DEB 394 2020-01-19) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 19 Jun 2020, Roman Gushchin wrote: > [ 40.287524] BUG: unable to handle page fault for address: ffffa77b833df000 > [ 40.287529] #PF: supervisor write access in kernel mode > [ 40.287531] #PF: error_code(0x000b) - reserved bit violation > [ 40.287532] PGD 40d14e067 P4D 40d14e067 PUD 40d14f067 PMD 3ec54d067 > PTE 80001688033d9163 > [ 40.287538] Oops: 000b [#2] SMP NOPTI > [ 40.287542] CPU: 9 PID: 1986 Comm: pulseaudio Tainted: G D > 5.8.0-rc1+ #697 > [ 40.287544] Hardware name: Gigabyte Technology Co., Ltd. > AB350-Gaming/AB350-Gaming-CF, BIOS F25 01/16/2019 > [ 40.287550] RIP: 0010:__memset+0x24/0x30 > [ 40.287553] Code: cc cc cc cc cc cc 0f 1f 44 00 00 49 89 f9 48 89 > d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 > 0f af c6 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 > d1 f3 > [ 40.287556] RSP: 0018:ffffa77b827a7e08 EFLAGS: 00010216 > [ 40.287558] RAX: 0000000000000000 RBX: ffff90f77dced800 RCX: 00000000000008a0 > [ 40.287560] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffa77b833df000 > [ 40.287561] RBP: ffff90f7898c7000 R08: ffff90f78c507768 R09: ffffa77b833df000 > [ 40.287563] R10: ffffa77b833df000 R11: ffff90f7839f2d40 R12: 0000000000000000 > [ 40.287564] R13: ffff90f76a802e00 R14: ffffffffc0cb8880 R15: ffff90f770f4e700 > [ 40.287567] FS: 00007f3d8e8df880(0000) GS:ffff90f78ee40000(0000) > knlGS:0000000000000000 > [ 40.287569] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 40.287570] CR2: ffffa77b833df000 CR3: 00000003fa556000 CR4: 00000000003406e0 > [ 40.287572] Call Trace: > [ 40.287584] snd_pcm_hw_params+0x3fd/0x490 [snd_pcm] > [ 40.287593] snd_pcm_common_ioctl+0x1c5/0x1110 [snd_pcm] > [ 40.287601] ? snd_pcm_info_user+0x64/0x80 [snd_pcm] > [ 40.287608] snd_pcm_ioctl+0x23/0x30 [snd_pcm] > [ 40.287613] ksys_ioctl+0x82/0xc0 > [ 40.287617] __x64_sys_ioctl+0x16/0x20 > [ 40.287622] do_syscall_64+0x4d/0x90 > [ 40.287627] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Hi Roman, If you have CONFIG_AMD_MEM_ENCRYPT set, this should be resolved by commit dbed452a078d56bc7f1abecc3edd6a75e8e4484e Author: David Rientjes Date: Thu Jun 11 00:25:57 2020 -0700 dma-pool: decouple DMA_REMAP from DMA_COHERENT_POOL Or you might want to wait for 5.8-rc2 instead which includes this fix.