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=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT autolearn=ham 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 81C07ECDE4B for ; Thu, 8 Nov 2018 17:58:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5301220840 for ; Thu, 8 Nov 2018 17:58:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5301220840 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ucw.cz Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727079AbeKIDep (ORCPT ); Thu, 8 Nov 2018 22:34:45 -0500 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:56663 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726585AbeKIDeo (ORCPT ); Thu, 8 Nov 2018 22:34:44 -0500 Received: by atrey.karlin.mff.cuni.cz (Postfix, from userid 512) id 85A01805F6; Thu, 8 Nov 2018 18:58:01 +0100 (CET) Date: Thu, 8 Nov 2018 18:58:03 +0100 From: Pavel Machek To: kernel list , tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, hpa@zytor.com, x86@kernel.org Cc: jani.nikula@linux.intel.com, joonas.lahtinen@linux.intel.com, rodrigo.vivi@intel.com, intel-gfx@lists.freedesktop.org Subject: v4.20-rc1: list_del corruption on thinkpad x220 Message-ID: <20181108175803.GA10785@amd> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="vkogqOf2sHV7VnPd" Content-Disposition: inline User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --vkogqOf2sHV7VnPd Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! My machine locked hard (thinkpad x220). After reboot, I found this in syslog: Sounds like memory corruption..? Does not sound like easy to debug. =2E..otoh, it still looks like an addres, so maybe it is "just" race in GPU drivers? Any ideas? Pavel Nov 8 18:35:01 duo CRON[28511]: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa 1 1 1) Nov 8 18:42:57 duo kernel: list_del corruption. prev->next should be ffff8801742b8178, but was ffffc9000192fec8 Nov 8 18:42:57 duo kernel: ------------[ cut here ]------------ Nov 8 18:42:57 duo kernel: kernel BUG at /data/fast/l/k/lib/list_debug.c:53! Nov 8 18:42:57 duo kernel: invalid opcode: 0000 [#1] SMP PTI Nov 8 18:42:57 duo kernel: CPU: 2 PID: 1082 Comm: i915/signal:1 Not tainted 4.20.0-rc1+ #3 Nov 8 18:42:57 duo kernel: Hardware name: LENOVO 42872WU/42872WU, BIOS 8DET74WW (1.44 ) 03 /13/2018 Nov 8 18:42:57 duo kernel: RIP: 0010:__list_del_entry_valid+0x8e/0x90 Nov 8 18:42:57 duo kernel: Code: 66 88 d1 ff 0f 0b 48 89 fe 31 c0 48 c7 c7 90 74 5e 85 e8 53 88 d1 ff 0f 0b 48 89 fe 31 c0 48 c7 c7 c8 74 5e 85 e8 40 88 d1 ff <0f> 0b 55 48 89 d0 48 8b 52 08 48 89 e5 48 39 f2 75 19 48 8b 32 48 Nov 8 18:42:57 duo kernel: RSP: 0000:ffffc9000196be78 EFLAGS: 00210086 Nov 8 18:42:57 duo kernel: RAX: 0000000000000054 RBX: ffff8801742b8178 RCX: 00000000000000 00 Nov 8 18:42:57 duo kernel: RDX: 0000000000000000 RSI: ffff88019e2a53d8 RDI: ffff88019e2a53 d8 Nov 8 18:42:57 duo kernel: RBP: ffffc9000196be78 R08: ffff880196e2cd10 R09: 00000000000000 00 Nov 8 18:42:57 duo kernel: R10: 00000000e7684eb9 R11: 3863656632393101 R12: ffffc9000196be c8 Nov 8 18:42:57 duo kernel: R13: ffff88019707e000 R14: ffff8801742b8080 R15: ffffc9000192fd d0 Nov 8 18:42:57 duo kernel: FS: 0000000000000000(0000) GS:ffff88019e280000(0000) knlGS:000 0000000000000 Nov 8 18:42:57 duo kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Nov 8 18:42:57 duo kernel: CR2: 00000000ed2bf000 CR3: 000000000581e001 CR4: 00000000000606a0 Nov 8 18:42:57 duo kernel: Call Trace: Nov 8 18:42:57 duo kernel: intel_breadcrumbs_signaler+0x162/0x330 Nov 8 18:42:57 duo kernel: kthread+0x116/0x150 Nov 8 18:42:57 duo kernel: ? intel_engine_wakeup+0x40/0x40 Nov 8 18:42:57 duo kernel: ? kthread_park+0x90/0x90 Nov 8 18:42:57 duo kernel: ret_from_fork+0x35/0x40 Nov 8 18:42:57 duo kernel: Modules linked in: Nov 8 18:42:57 duo kernel: ---[ end trace 2f8da183a56f80f6 ]--- Nov 8 18:42:57 duo kernel: RIP: 0010:__list_del_entry_valid+0x8e/0x90 Nov 8 18:42:57 duo kernel: Code: 66 88 d1 ff 0f 0b 48 89 fe 31 c0 48 c7 c7 90 74 5e 85 e8 53 88 d1 ff 0f 0b 48 89 fe 31 c0 48 c7 c7 c8 74 5e 85 e8 40 88 d1 ff <0f> 0b 55 48 89 d0 48 8b 52 08 48 89 e5 48 39 f2 75 19 48 8b 32 48 Nov 8 18:42:57 duo kernel: RSP: 0000:ffffc9000196be78 EFLAGS: 00210086 Nov 8 18:42:57 duo kernel: RAX: 0000000000000054 RBX: ffff8801742b8178 RCX: 0000000000000000 Nov 8 18:42:57 duo kernel: RDX: 0000000000000000 RSI: ffff88019e2a53d8 RDI: ffff88019e2a53d8 Nov 8 18:42:57 duo kernel: RBP: ffffc9000196be78 R08: ffff880196e2cd10 R09: 0000000000000000 Nov 8 18:42:57 duo kernel: R10: 00000000e7684eb9 R11: 3863656632393101 R12: ffffc9000196bec8 Nov 8 18:42:57 duo kernel: R13: ffff88019707e000 R14: ffff8801742b8080 R15: ffffc9000192fdd0 Nov 8 18:42:57 duo kernel: FS: 0000000000000000(0000) GS:ffff88019e280000(0000) knlGS:0000000000000000 Nov 8 18:42:57 duo kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Nov 8 18:42:57 duo kernel: CR2: 00000000ed2bf000 CR3: 000000000581e001 CR4: 00000000000606a0 --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --vkogqOf2sHV7VnPd Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlvkeSsACgkQMOfwapXb+vIiAQCguQAiJKEK/HnN7mrFaPLikuOe 8GkAn2GCG+jUMmFGpkjUtI90KdTaZZ3h =5IT0 -----END PGP SIGNATURE----- --vkogqOf2sHV7VnPd--