Red Hat Bugzilla – Bug 1248507
kernel: [drm:cpt_set_fifo_underrun_reporting] *ERROR* uncleared pch fifo underrun on pch transcoder A
Last modified: 2016-05-10 18:39:40 EDT
Description of problem: Below message is logged in system logs : Jul 22 13:41:47 oc3158325636 kernel: [drm:cpt_set_fifo_underrun_reporting] *ERROR* uncleared pch fifo underrun on pch transcoder A Jul 22 13:41:47 oc3158325636 kernel: [drm:cpt_serr_int_handler] *ERROR* PCH transcoder A FIFO underrun Problem is only seen on Ivy Bridge systems : Problem occurs on: Lenovo T430/X230/L430 Toshiba R940 Problem does not appear on: Lenovo T450/T440/T440p/T420 Toshiba R30 Version-Release number of selected component (if applicable): kernel-2.6.32-573.1.1.el6.x86_64 xorg-x11-drv-intel-2.99.911-8.el6.x86_64 How reproducible: Always Steps to Reproduce: Boot the system Additional info: from lspci: ----------- 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) from dmidecode: --------------- Version: Intel(R) Core(TM) i5-3320M CPU @ 2.60GHz from: lsmod: ------------ video 21654 1 i915 grep drm dmesg Command line: ro root=/dev/mapper/vg_oc8115415048-lv_root exec-shield=1 selinux=1 rhgb quiet drm_kms_helper.poll=0 LANG=en_US.UTF-8 rd_LUKS_UUID=luks-825fea9b-2fff-4d37-adba-7c803d85baeb rd_NO_MD SYSFONT=latarcyrheb-sun16 rd_LVM_LV=vg_oc8115415048/lv_root KEYBOARDTYPE=pc KEYTABLE=us rd_LVM_LV=vg_oc8115415048/lv_swap rd_NO_DM rhgb quiet Kernel command line: ro root=/dev/mapper/vg_oc8115415048-lv_root exec-shield=1 selinux=1 rhgb quiet drm_kms_helper.poll=0 LANG=en_US.UTF-8 rd_LUKS_UUID=luks-825fea9b-2fff-4d37-adba-7c803d85baeb rd_NO_MD SYSFONT=latarcyrheb-sun16 rd_LVM_LV=vg_oc8115415048/lv_root KEYBOARDTYPE=pc KEYTABLE=us rd_LVM_LV=vg_oc8115415048/lv_swap rd_NO_DM rhgb quiet [drm] Initialized drm 1.1.0 20060810 [drm] Memory usable by graphics device = 2048M [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [drm] Driver supports precise vblank timestamp query. [drm] Initialized i915 1.6.0 20140905 for 0000:00:02.0 on minor 0 [drm] GMBUS [i915 gmbus dpb] timed out, falling back to bit banging on pin 5 fbcon: inteldrmfb (fb0) is primary device [drm:cpt_set_fifo_underrun_reporting] *ERROR* uncleared pch fifo underrun on pch transcoder A [drm:cpt_serr_int_handler] *ERROR* PCH transcoder A FIFO underrun i915 0000:00:02.0: fb0: inteldrmfb frame buffer device SELinux: initialized (dev drm, type drm), not configured for labeling
Identified on the following: 00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06) 00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller (rev 06) 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Venus XT [Radeon HD 8870M / R9 M270X/M370X] 01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Cape Verde/Pitcairn HDMI Audio [Radeon HD 7700/7800 Series] snd_hda_intel 55222 4 snd_hda_codec 136309 4 snd_hda_codec_realtek,snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel snd_hwdep 7100 1 snd_hda_codec snd_seq 60769 0 snd_seq_device 7277 1 snd_seq snd_pcm 93793 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec snd_timer 22747 2 snd_seq,snd_pcm snd 73783 18 snd_hda_codec_realtek,snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_seq,snd_seq_device,snd_pcm,snd_timer soundcore 7958 2 snd_hda_codec,snd snd_page_alloc 8856 2 snd_hda_intel,snd_pcm hci_hcd 183615 0 i915 1015889 5 video 21654 1 i915 output 2409 1 video radeon 1734542 0 ttm 89408 1 radeon drm_kms_helper 88766 2 i915,radeon drm 320992 6 i915,radeon,ttm,drm_kms_helper i2c_algo_bit 5711 2 i915,radeon i2c_core 29132 6 i2c_i801,i915,radeon,drm_kms_helper,drm,i2c_algo_bit Linux lbsgm48001.local 2.6.32-573.1.1.el6.x86_64 #1 SMP Tue Jul 14 02:46:51 EDT 2015 x86_64 x86_64 x86_64 GNU/Linux previous kernel: kernel-2.6.32-504.30.3.el6.x86_64 Customer notes that it only happens when using the 504 or newer kernel Identified on kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=79261
(In reply to Joe Wright from comment #1) > Identified on the following: > > 00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor > Integrated Graphics Controller (rev 06) > 00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core > Processor HD Audio Controller (rev 06) > > 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] > Venus XT [Radeon HD 8870M / R9 M270X/M370X] > 01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Cape > Verde/Pitcairn HDMI Audio [Radeon HD 7700/7800 Series] > > > snd_hda_intel 55222 4 > snd_hda_codec 136309 4 > snd_hda_codec_realtek,snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel > snd_hwdep 7100 1 snd_hda_codec > snd_seq 60769 0 > snd_seq_device 7277 1 snd_seq > snd_pcm 93793 3 > snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec > snd_timer 22747 2 snd_seq,snd_pcm > snd 73783 18 > snd_hda_codec_realtek,snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel, > snd_hda_codec,snd_hwdep,snd_seq,snd_seq_device,snd_pcm,snd_timer > soundcore 7958 2 snd_hda_codec,snd > snd_page_alloc 8856 2 snd_hda_intel,snd_pcm > > hci_hcd 183615 0 > i915 1015889 5 > video 21654 1 i915 > output 2409 1 video > radeon 1734542 0 > ttm 89408 1 radeon > drm_kms_helper 88766 2 i915,radeon > drm 320992 6 i915,radeon,ttm,drm_kms_helper > i2c_algo_bit 5711 2 i915,radeon > i2c_core 29132 6 > i2c_i801,i915,radeon,drm_kms_helper,drm,i2c_algo_bit > > Linux lbsgm48001.local 2.6.32-573.1.1.el6.x86_64 #1 SMP Tue Jul 14 02:46:51 > EDT 2015 x86_64 x86_64 x86_64 GNU/Linux > > previous kernel: kernel-2.6.32-504.30.3.el6.x86_64 > > Customer notes that it only happens when using the 504 or newer kernel > > > Identified on kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=79261 Vasiliy could you please have a look if we have at least some devices to test? I know of T440 so far. Also [AMD/ATI] Cape Verde/Pitcairn HDMI Audio [Radeon HD 7700/7800 Series] is questionable as this device is not available anymore, right?
Confirmed on a T430.
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux release for currently deployed products. This request is not yet committed for inclusion in a release.
Patch(es) available on kernel-2.6.32-614.el6
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHSA-2016-0855.html