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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 931E4C433DF for ; Mon, 8 Jun 2020 06:19:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 71DDA20774 for ; Mon, 8 Jun 2020 06:19:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728872AbgFHGTz (ORCPT ); Mon, 8 Jun 2020 02:19:55 -0400 Received: from verein.lst.de ([213.95.11.211]:36011 "EHLO verein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726929AbgFHGTz (ORCPT ); Mon, 8 Jun 2020 02:19:55 -0400 Received: by verein.lst.de (Postfix, from userid 2407) id 820EA68B02; Mon, 8 Jun 2020 08:19:50 +0200 (CEST) Date: Mon, 8 Jun 2020 08:19:50 +0200 From: Christoph Hellwig To: "Alex Xu (Hello71)" Cc: alsa-devel@alsa-project.org, bp@alien8.de, hpa@zytor.com, linux-kernel@vger.kernel.org, mingo@redhat.com, Pavel Machek , perex@perex.cz, tglx@linutronix.de, tiwai@suse.com, x86@kernel.org, rientjes@google.com, hch@lst.de, hch@infradead.org Subject: Re: next-0519 on thinkpad x60: sound related? window manager crash Message-ID: <20200608061950.GA17476@lst.de> References: <20200520111136.GA3802@amd> <1591545088.74ii116nf2.none@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1591545088.74ii116nf2.none@localhost> User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Can you do a listing using gdb where this happens? gdb vmlinux l *(snd_pcm_hw_params+0x3f3) ? On Sun, Jun 07, 2020 at 11:58:21AM -0400, Alex Xu (Hello71) wrote: > I have a similar issue, caused between aaa2faab4ed8 and b170290c2836. > > [ 20.263098] BUG: unable to handle page fault for address: ffffb2b582cc2000 > [ 20.263104] #PF: supervisor write access in kernel mode > [ 20.263105] #PF: error_code(0x000b) - reserved bit violation > [ 20.263107] PGD 3fd03b067 P4D 3fd03b067 PUD 3fd03c067 PMD 3f8822067 PTE 8000273942ab2163 > [ 20.263113] Oops: 000b [#1] PREEMPT SMP > [ 20.263117] CPU: 3 PID: 691 Comm: mpv Not tainted 5.7.0-11262-gb170290c2836 #1 > [ 20.263119] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./B450 Pro4, BIOS P4.10 03/05/2020 > [ 20.263125] RIP: 0010:__memset+0x24/0x30 > [ 20.263128] 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 > [ 20.263131] RSP: 0018:ffffb2b583d07e10 EFLAGS: 00010216 > [ 20.263133] RAX: 0000000000000000 RBX: ffff8b8000102c00 RCX: 0000000000004000 > [ 20.263134] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffb2b582cc2000 > [ 20.263136] RBP: ffff8b8000101000 R08: 0000000000000000 R09: ffffb2b582cc2000 > [ 20.263137] R10: 0000000000005356 R11: ffff8b8000102c18 R12: 0000000000000000 > [ 20.263139] R13: 0000000000000000 R14: ffff8b8039944200 R15: ffffffff9794daa0 > [ 20.263141] FS: 00007f41aa4b4200(0000) GS:ffff8b803ecc0000(0000) knlGS:0000000000000000 > [ 20.263143] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 20.263144] CR2: ffffb2b582cc2000 CR3: 00000003b6731000 CR4: 00000000003406e0 > [ 20.263146] Call Trace: > [ 20.263151] ? snd_pcm_hw_params+0x3f3/0x47a > [ 20.263154] ? snd_pcm_common_ioctl+0xf2/0xf73 > [ 20.263158] ? snd_pcm_ioctl+0x1e/0x29 > [ 20.263161] ? ksys_ioctl+0x77/0x91 > [ 20.263163] ? __x64_sys_ioctl+0x11/0x14 > [ 20.263166] ? do_syscall_64+0x3d/0xf5 > [ 20.263170] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 > [ 20.263173] Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev snd_usb_audio videobuf2_common snd_hwdep snd_usbmidi_lib input_leds snd_rawmidi led_class > [ 20.263182] CR2: ffffb2b582cc2000 > [ 20.263184] ---[ end trace c6b47a774b91f0a0 ]--- > [ 20.263187] RIP: 0010:__memset+0x24/0x30 > [ 20.263190] 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 > [ 20.263192] RSP: 0018:ffffb2b583d07e10 EFLAGS: 00010216 > [ 20.263193] RAX: 0000000000000000 RBX: ffff8b8000102c00 RCX: 0000000000004000 > [ 20.263195] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffb2b582cc2000 > [ 20.263196] RBP: ffff8b8000101000 R08: 0000000000000000 R09: ffffb2b582cc2000 > [ 20.263197] R10: 0000000000005356 R11: ffff8b8000102c18 R12: 0000000000000000 > [ 20.263199] R13: 0000000000000000 R14: ffff8b8039944200 R15: ffffffff9794daa0 > [ 20.263201] FS: 00007f41aa4b4200(0000) GS:ffff8b803ecc0000(0000) knlGS:0000000000000000 > [ 20.263202] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 20.263204] CR2: ffffb2b582cc2000 CR3: 00000003b6731000 CR4: 00000000003406e0 > > I bisected this to 82fef0ad811f "x86/mm: unencrypted non-blocking DMA > allocations use coherent pools". Reverting 1ee18de92927 resolves the > issue. > > Looks like Thinkpad X60 doesn't have VT-d, but could still be DMA > related. ---end quoted text---