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[23.128.96.18]) by mx.google.com with ESMTP id qb34si12591133ejc.603.2021.10.15.22.08.25; Fri, 15 Oct 2021 22:09:26 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass (test mode) header.i=@o2.pl header.s=1024a header.b="mvfzA/VI"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=o2.pl Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239456AbhJON3n (ORCPT + 99 others); Fri, 15 Oct 2021 09:29:43 -0400 Received: from mx-out.tlen.pl ([193.222.135.145]:49965 "EHLO mx-out.tlen.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239431AbhJON3W (ORCPT ); Fri, 15 Oct 2021 09:29:22 -0400 Received: (wp-smtpd smtp.tlen.pl 24969 invoked from network); 15 Oct 2021 15:27:11 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=o2.pl; s=1024a; t=1634304431; bh=DmOEdnUPWwlq9GCCEgGXc5ZoApsZcq4HSAn83ot6kIQ=; h=Subject:To:Cc:From; b=mvfzA/VIluA9A5eoU9g2h01GfU/4tzWaIhik90zN7LUUXXwdz5k+USJHaZnLzeVmu M3v67sGLo4r+on3JCKSpo/97Ns2qkcPnMp8smci5aGRPSXVra22yvfNYw0Pr/37Tqx +39w6o7hW90fqiaUUpG+EwCukzKX+NKVByBgijFo= Received: from aaet142.neoplus.adsl.tpnet.pl (HELO [192.168.1.22]) (mat.jonczyk@o2.pl@[83.4.123.142]) (envelope-sender ) by smtp.tlen.pl (WP-SMTPD) with ECDHE-RSA-AES256-GCM-SHA384 encrypted SMTP for ; 15 Oct 2021 15:27:11 +0200 Message-ID: <10c3ce68-a171-b0c0-5051-d61fc059dacb@o2.pl> Date: Fri, 15 Oct 2021 15:26:59 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.2.0 Subject: Re: [stable regression] 5.14.12 breaks graphics on an Intel GM45 laptop Content-Language: en-GB To: Jani Nikula , Imre Deak Cc: "sashal@kernel.org" , "jose.souza@intel.com" , "ville.syrjala@linux.intel.com" , "gregkh@linuxfoundation.org" , "linux-kernel@vger.kernel.org" References: <87k0ievjo0.fsf@intel.com> <20211015082349.GA759059@ideak-desk.fi.intel.com> <20211015122530.GA819141@ideak-desk.fi.intel.com> <877deev4bz.fsf@intel.com> From: =?UTF-8?Q?Mateusz_Jo=c5=84czyk?= In-Reply-To: <877deev4bz.fsf@intel.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-WP-MailID: 011c0a53340fc08e7d515e40a4cff5f4 X-WP-AV: skaner antywirusowy Poczty o2 X-WP-SPAM: NO 0000000 [kRN0] Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Continuing in https://gitlab.freedesktop.org/drm/intel/-/issues/4297 W dniu 15.10.2021 o 14:51, Jani Nikula pisze: > On Fri, 15 Oct 2021, Imre Deak wrote: >> On Fri, Oct 15, 2021 at 11:23:56AM +0300, Imre Deak wrote: >>> On Fri, Oct 15, 2021 at 10:20:15AM +0300, Jani Nikula wrote: >>>> On Thu, 14 Oct 2021, mat.jonczyk wrote: >>>>> Hello, >>>>> >>>>> Kernel 5.14.12 breaks GPU support on an Dell Satellite E6500 laptop with GM45 integrated graphics. The screen does not update after >>>>> the i965 module gets loaded. Same problem happens on 5.15.0-rc5. >>>>> >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: pci 0000:00:00.0: Intel GM45 Chipset >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: pci 0000:00:00.0: detected gtt size: 2097152K total, 262144K mappable >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: pci 0000:00:00.0: detected 32768K stolen memory >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: input: Integrated_Webcam_2M: Integrate as >>>>> /devices/pci0000:00/0000:00:1a.7/usb1/1-6/1-6:1.0/input/input22 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: usbcore: registered new interface driver uvcvideo >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: checking generic (e0000000 3c0000) vs hw (f6c00000 400000) >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: checking generic (e0000000 3c0000) vs hw (e0000000 10000000) >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: fb0: switching to inteldrmfb from VESA VGA >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: Console: switching to colour dummy device 80x25 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: i915 0000:00:02.0: vgaarb: deactivate vga console >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: i915 0000:00:02.0: vgaarb: changed VGA decodes: >>>>> olddecodes=io+mem,decodes=io+mem:owns=io+mem >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: usb 3-1.3: New USB device found, idVendor=413c, idProduct=8156, bcdDevice= 4.56 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: usb 3-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: usb 3-1.3: Product: Dell Wireless 370 Bluetooth Mini-card >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: usb 3-1.3: Manufacturer: Dell Computer Corp >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: invalid opcode: 0000 [#1] SMP PTI >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: CPU: 1 PID: 303 Comm: systemd-udevd Not tainted 5.14.12-051412-generic #202110130438 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: Hardware name: Dell Inc. Latitude E6500 /0NY667, BIOS A29 06/04/2013 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: RIP: 0010:intel_dp_sync_state+0xe0/0xf0 [i915] >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: Code: 85 69 ff ff ff 48 8b 9f 60 01 00 00 80 bb 73 01 00 00 00 0f 85 64 ff ff ff 48 8d bb 60 01 >>>>> 00 00 e8 a5 cb ff ff e9 53 ff ff ff <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 0f 1f 44 00 00 55 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: RSP: 0000:ffff9d6c006bf870 EFLAGS: 00010282 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: RAX: ffffffffffffffff RBX: ffff9096c7b84000 RCX: ffff9096c76544e0 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff9096c7b841a6 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: RBP: ffff9d6c006bf890 R08: 00000000ffffff92 R09: ffffffffc0797464 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: R10: 0000000000000002 R11: ffff9096c7b84df0 R12: 0000000000000000 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: R13: 0000000000000000 R14: 0000000000000004 R15: ffff9096c7b84000 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: FS: 00007fc523e0a880(0000) GS:ffff9096dbd00000(0000) knlGS:0000000000000000 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: CR2: 0000559a4efd6110 CR3: 000000010570e000 CR4: 00000000000006e0 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: Call Trace: >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: intel_modeset_readout_hw_state+0x2a4/0xb90 [i915] >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: ? __cond_resched+0x1a/0x50 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: intel_modeset_setup_hw_state+0x17f/0x650 [i915] >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: ? drm_modeset_lock_all_ctx+0x1a8/0x3c0 [drm] >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: ? drm_warn_on_modeset_not_all_locked.part.0+0x5e/0x90 [drm] >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: intel_modeset_init_nogem+0x293/0x4d0 [i915] >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: ? intel_irq_postinstall+0x470/0x5b0 [i915] >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: i915_driver_probe+0x1ab/0x440 [i915] >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: ? mutex_lock+0x13/0x40 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: i915_pci_probe+0x58/0x140 [i915] >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: local_pci_probe+0x48/0x80 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: pci_device_probe+0x105/0x1d0 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: really_probe+0x20c/0x410 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: __driver_probe_device+0x109/0x180 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: driver_probe_device+0x23/0x90 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: __driver_attach+0xac/0x1b0 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: ? __device_attach_driver+0xe0/0xe0 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: bus_for_each_dev+0x7e/0xc0 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: driver_attach+0x1e/0x20 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: bus_add_driver+0x135/0x1f0 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: driver_register+0x95/0xf0 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: __pci_register_driver+0x68/0x70 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: i915_init+0x66/0x86 [i915] >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: ? 0xffffffffc0c80000 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: do_one_initcall+0x48/0x1d0 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: ? kmem_cache_alloc_trace+0x159/0x2c0 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: do_init_module+0x62/0x290 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: load_module+0xaa3/0xb30 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: __do_sys_finit_module+0xbf/0x120 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: __x64_sys_finit_module+0x18/0x20 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: do_syscall_64+0x5c/0xc0 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: ? exit_to_user_mode_prepare+0x37/0xb0 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: ? syscall_exit_to_user_mode+0x27/0x50 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: ? __x64_sys_mmap+0x33/0x40 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: ? do_syscall_64+0x69/0xc0 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: ? __x64_sys_lseek+0x18/0x20 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: ? do_syscall_64+0x69/0xc0 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: ? do_syscall_64+0x69/0xc0 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: ? do_syscall_64+0x69/0xc0 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: ? common_interrupt+0x5a/0xa0 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: ? asm_common_interrupt+0x8/0x40 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: entry_SYSCALL_64_after_hwframe+0x44/0xae >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: RIP: 0033:0x7fc52438c89d >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca >>>>> 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c3 f5 0c 00 f7 d8 64 89 01 48 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: RSP: 002b:00007ffee98db388 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: RAX: ffffffffffffffda RBX: 0000559a4f001eb0 RCX: 00007fc52438c89d >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: RDX: 0000000000000000 RSI: 00007fc524269ded RDI: 0000000000000017 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: RBP: 0000000000020000 R08: 0000000000000000 R09: 0000000000000000 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: R10: 0000000000000017 R11: 0000000000000246 R12: 00007fc524269ded >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: R13: 0000000000000000 R14: 0000559a4edadd00 R15: 0000559a4f001eb0 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: Modules linked in: dell_smm_hwmon(+) snd_hda_codec_generic(+) snd_hda_intel kvm(+) >>>>> snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec snd_hda_core snd_hwdep snd_pcm dell_wmi ledtrig_audio dell_smbios dcdbas >>>>> uvcvideo cdc_mbim sparse_keymap dell_wmi_descriptor wmi_bmof snd_seq_midi cdc_wdm videobuf2_vmalloc snd_seq_midi_event >>>>> serio_raw videobuf2_memops i915(+) snd_rawmidi cdc_ncm iwldvm videobuf2_v4l2 snd_seq cdc_ether mac80211 videobuf2_common >>>>> qcserial usbnet usb_wwan mii libarc4 ttm videodev usbserial snd_seq_device pcmcia input_leds mc drm_kms_helper iwlwifi snd_timer >>>>> joydev cec yenta_socket rc_core pcmcia_rsrc pcmcia_core i2c_algo_bit fb_sys_fops syscopyarea snd sysfillrect sysimgblt cfg80211 >>>>> soundcore mac_hid sch_fq_codel msr parport_pc ppdev lp drm parport ip_tables x_tables autofs4 wacom hid_generic usbhid gpio_ich >>>>> hid sdhci_pci firewire_ohci cqhci ahci i2c_i801 firewire_core xhci_pci psmouse lpc_ich libahci i2c_smbus sdhci crc_itu_t xhci_pci_renesas >>>>> e1000e wmi video >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: ---[ end trace 80e312eaeb64de58 ]--- >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: RIP: 0010:intel_dp_sync_state+0xe0/0xf0 [i915] >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: Code: 85 69 ff ff ff 48 8b 9f 60 01 00 00 80 bb 73 01 00 00 00 0f 85 64 ff ff ff 48 8d bb 60 01 >>>>> 00 00 e8 a5 cb ff ff e9 53 ff ff ff <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 0f 1f 44 00 00 55 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: RSP: 0000:ffff9d6c006bf870 EFLAGS: 00010282 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: RAX: ffffffffffffffff RBX: ffff9096c7b84000 RCX: ffff9096c76544e0 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff9096c7b841a6 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: RBP: ffff9d6c006bf890 R08: 00000000ffffff92 R09: ffffffffc0797464 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: R10: 0000000000000002 R11: ffff9096c7b84df0 R12: 0000000000000000 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: R13: 0000000000000000 R14: 0000000000000004 R15: ffff9096c7b84000 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: FS: 00007fc523e0a880(0000) GS:ffff9096dbd00000(0000) knlGS:0000000000000000 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 >>>>> paź 14 23:05:34 mjonczyk-laptop kernel: CR2: 0000559a4efd6110 CR3: 000000010570e000 CR4: 00000000000006e0 >>>>> paź 14 23:05:35 mjonczyk-laptop kernel: snd_hda_codec_idt hdaudioC0D0: autoconfig for 92HD71B7X: line_outs=1 >>>>> (0xf/0x0/0x0/0x0/0x0) type:line >>>>> paź 14 23:05:35 mjonczyk-laptop kernel: snd_hda_codec_idt hdaudioC0D0: speaker_outs=1 (0xd/0x0/0x0/0x0/0x0) >>>>> >>>>> The most likely culprit is "drm/i915/tc: Fix TypeC port init/resume time sanitization", so I'm CCing its authors. >>>>> I'll test tomorrow with this patch reverted. Please excuse me for writing this in HTML format, but my main machine is temporarily >>>>> broken. >>>> Imre, intel_dp_sync_state() is now called on g4x DP encoders where >>>> encoder->get_hw_state() returns false. Seems like a fragile change >>>> that's not mentioned in the commit message or ->sync_state >>>> documentation. Could be the culprit, though the backtrace isn't >>>> conclusive. >>> Yes, the above is the culprit commit, thanks for the report and decoding >>> the crash log. I'll follow up with the fix shortly. >> Mat, >> >> actually a bit puzzled what's going on. The crash happens on an UD2 >> undefined instruction and couldn't figure out how we could end up >> running such code. > That's what I thought too, hence "the backtrace isn't conclusive". > > Did 5.14.11 work? > > Would be interested in the results with the commit reverted to confirm. > > > BR, > Jani. > > > >> The only relevant change wrt. the crash in my patch is to read out the >> DPCD on a disabled encoder, however this shouldn't be a problem. It's >> not required though so to make the pre-DDI code uniform with DDI platforms >> I sent >> https://patchwork.freedesktop.org/series/95878/ >> >> Could you please give this patch a go? >> >> Could you provide a full dmesg log booting with drm.debug=0x10e and >> capturing the crash? (If you have a working VGA console, or ssh access >> to the machine, you could boot with >> modprobe.blacklist=i915,snd_hda_intel 3 >> and modprobe i915 manually). >> >> Could you also provide your i915.ko binary? >> >> Probably better to keep track of this issue on a ticket you could open >> at >> https://gitlab.freedesktop.org/drm/intel/-/issues/new >> >> Thanks, >> Imre >> >>>> BR, >>>> Jani. >>>> >>>> >>>> >>>> >>>>> I am testing this on Ubuntu 20.04 using kernels from Ubuntu mainline PPA: >>>>> https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.14.12/ >>>>> https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.15-rc5/ >>>>> >>>>> Greetings, >>>>> Mateusz Jończyk >>>> -- >>>> Jani Nikula, Intel Open Source Graphics Center