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=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 EAC66C47082 for ; Sat, 5 Jun 2021 21:25:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CDE4E6140F for ; Sat, 5 Jun 2021 21:25:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230060AbhFEVYV (ORCPT ); Sat, 5 Jun 2021 17:24:21 -0400 Received: from mail-io1-f41.google.com ([209.85.166.41]:43674 "EHLO mail-io1-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229998AbhFEVYU (ORCPT ); Sat, 5 Jun 2021 17:24:20 -0400 Received: by mail-io1-f41.google.com with SMTP id k16so14204012ios.10 for ; Sat, 05 Jun 2021 14:22:32 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=1X7C13eDQDl51/sBrcWLcBotS8EVFpLlVkgBBa2OCtE=; b=LI7RTXGUDKjK7fTVTJ9N8nEYw6DXMzj3PF4SezDLOJrk76+kDDYOB5EPxH1pB7JC6G AToJJbslFHiZpK2kRWyiIX5YG0CAXCZP/5Z1PhX/DiIUNCUk5cTagwwFplwJKKuJ8bIw fEDfAhTYhniPrcUYh5BS3BOr+lKJ7lcN0vKfk3mDjaLjcXg4AOKKBNfQjlNg1XUjdONh bW8EIXaDzDTMs1ReEHbOzTXKDl47y0Eeis9KocTSvwI95DKPkNKcZztC/URzoPYBHK/C vw0sJ8EOh2N75ME2r71l8SHGuESB5rBpxaOeMVion/NmrYY4KaWBFfgd2b4j2AdOlWOw lB9g== X-Gm-Message-State: AOAM532P0c20u4a664M3O5N2W/AsXq451S/HjGC9GZJh8WXXhl/f3GCm e2xAiAzgUCB0kC+/4fKn6/iKCAl3m8eocpDnP7E= X-Google-Smtp-Source: ABdhPJwDYU/lj0l1DjZPjAxSIB2JYv48iw9FlskjP4Nx6BPAhCrmZ0g4qLeCdx7pfpqrwS+Al3ntrJqP3KVIghxLc3M= X-Received: by 2002:a05:6638:380a:: with SMTP id i10mr9765600jav.100.1622928151767; Sat, 05 Jun 2021 14:22:31 -0700 (PDT) MIME-Version: 1.0 References: <202106052143.52488.linux@zary.sk> In-Reply-To: <202106052143.52488.linux@zary.sk> From: Ilia Mirkin Date: Sat, 5 Jun 2021 17:22:20 -0400 Message-ID: Subject: Re: [Nouveau] nouveau broken on Riva TNT2 in 5.13.0-rc4: NULL pointer dereference in nouveau_bo_sync_for_device To: Ondrej Zary Cc: Ben Skeggs , nouveau , LKML , dri-devel Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Another instance of a report like this here: https://gitlab.freedesktop.org/drm/nouveau/-/issues/92 On Sat, Jun 5, 2021 at 3:53 PM Ondrej Zary wrote: > > Hello, > I'm testing 5.13.0-rc4 and nouveau crashes with NULL pointer dereference in nouveau_bo_sync_for_device. > Found various reports like this but that was back in februaryso that should be fixed now. > > [ 21.003216] BUG: kernel NULL pointer dereference, address: 00000000 > [ 21.003235] #PF: supervisor read access in kernel mode > [ 21.003243] #PF: error_code(0x0000) - not-present page > [ 21.003250] *pde = 00000000 > [ 21.003258] Oops: 0000 [#1] SMP > [ 21.003268] CPU: 0 PID: 222 Comm: systemd-udevd Not tainted 5.13.0-rc4+ #327 > [ 21.003278] Hardware name: /848P-ICH5, BIOS 6.00 PG 02/03/2005 > [ 21.003285] EIP: nouveau_bo_sync_for_device+0x9e/0xbf [nouveau] > [ 21.003571] Code: 02 89 45 e8 01 d1 8b 19 89 5d ec bb 01 00 00 00 3b 5d e8 74 0d 89 d8 c1 e0 05 03 45 ec 39 04 99 74 1e 8b 46 10 89 d9 c1 e1 0c <8b> 14 10 8b 47 e0 8b 40 08 6a 01 e8 d5 03 55 df 01 5d f0 58 eb ae > [ 21.003588] EAX: 00000000 EBX: 00000010 ECX: 00010000 EDX: 00000000 > [ 21.003597] ESI: c3e90280 EDI: c185a494 EBP: c2ed7c10 ESP: c2ed7bf8 > [ 21.003606] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 EFLAGS: 00210206 > [ 21.003615] CR0: 80050033 CR2: 00000000 CR3: 02ecb000 CR4: 00000690 > [ 21.003625] Call Trace: > [ 21.003635] nouveau_bo_validate+0x3f/0x48 [nouveau] > [ 21.003911] nouveau_bo_pin+0xf0/0x187 [nouveau] > [ 21.004182] nouveau_channel_prep+0xc0/0x269 [nouveau] > [ 21.004454] nouveau_channel_new+0x3c/0x5f5 [nouveau] > [ 21.004725] ? slab_free_freelist_hook+0x3b/0xa7 > [ 21.004740] ? kfree+0x9e/0x11a > [ 21.004749] ? nvif_object_sclass_put+0xd/0x16 [nouveau] > [ 21.004944] nouveau_drm_device_init+0x2e2/0x646 [nouveau] > [ 21.005186] ? pci_enable_device_flags+0x23/0x97 > [ 21.005202] nouveau_drm_probe+0xe5/0x182 [nouveau] > [ 21.005443] ? nouveau_drm_device_init+0x646/0x646 [nouveau] > [ 21.005683] pci_device_probe+0x89/0xe9 > [ 21.005696] really_probe+0x127/0x2b9 > [ 21.005707] driver_probe_device+0x62/0x89 > [ 21.005715] device_driver_attach+0x2e/0x41 > [ 21.005724] __driver_attach+0x83/0x8a > [ 21.005732] bus_for_each_dev+0x4c/0x66 > [ 21.005740] driver_attach+0x14/0x16 > [ 21.005747] ? device_driver_attach+0x41/0x41 > [ 21.005756] bus_add_driver+0xc5/0x16c > [ 21.005764] driver_register+0x87/0xb9 > [ 21.005772] __pci_register_driver+0x38/0x3b > [ 21.005780] ? 0xf0be4000 > [ 21.005787] nouveau_drm_init+0x14c/0x1000 [nouveau] > [ 21.005964] do_one_initcall+0x5a/0x134 > [ 21.005975] ? __vunmap+0x124/0x12d > [ 21.005984] ? __vunmap+0x124/0x12d > [ 21.005992] ? kmem_cache_alloc+0xa8/0xb6 > [ 21.006001] ? do_init_module+0x17/0x1cf > [ 21.006012] do_init_module+0x46/0x1cf > [ 21.006021] load_module+0x1799/0x1bcb > [ 21.006032] __ia32_sys_finit_module+0x72/0x7a > [ 21.006044] do_int80_syscall_32+0x53/0x62 > [ 21.006054] entry_INT80_32+0xf0/0xf0 > [ 21.006063] EIP: 0xb7f40092 > [ 21.006071] Code: 00 00 00 e9 90 ff ff ff ff a3 24 00 00 00 68 30 00 00 00 e9 80 ff ff ff ff a3 e8 ff ff ff 66 90 00 00 00 00 00 00 00 00 cd 80 8d b4 26 00 00 00 00 8d b6 00 00 00 00 8b 1c 24 c3 8d b4 26 00 > [ 21.006086] EAX: ffffffda EBX: 00000010 ECX: b7e9bbdd EDX: 00000000 > [ 21.006095] ESI: 008f27d0 EDI: 008f9e10 EBP: 00000000 ESP: bfa140b8 > [ 21.006103] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00200296 > [ 21.006114] Modules linked in: nouveau(+) snd_intel8x0 snd_ac97_codec pcmcia wmi hwmon ac97_bus yenta_socket pcmcia_rsrc drm_ttm_helper snd_pcm ttm snd_timer pcmcia_core psmouse 8139cp snd sg soundcore serio_raw parport_pc intel_agp parport > [ 21.006165] CR2: 0000000000000000 > [ 21.006201] ---[ end trace 02dc541683feafc6 ]--- > [ 21.006211] EIP: nouveau_bo_sync_for_device+0x9e/0xbf [nouveau] > [ 21.006460] Code: 02 89 45 e8 01 d1 8b 19 89 5d ec bb 01 00 00 00 3b 5d e8 74 0d 89 d8 c1 e0 05 03 45 ec 39 04 99 74 1e 8b 46 10 89 d9 c1 e1 0c <8b> 14 10 8b 47 e0 8b 40 08 6a 01 e8 d5 03 55 df 01 5d f0 58 eb ae > [ 21.006476] EAX: 00000000 EBX: 00000010 ECX: 00010000 EDX: 00000000 > [ 21.006485] ESI: c3e90280 EDI: c185a494 EBP: c2ed7c10 ESP: c2ed7bf8 > [ 21.006494] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 EFLAGS: 00210206 > [ 21.006503] CR0: 80050033 CR2: 00000000 CR3: 02ecb000 CR4: 00000690 > > > -- > Ondrej Zary > _______________________________________________ > Nouveau mailing list > Nouveau@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/nouveau