This is a kernel bug, rather than anything else. See
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6c51d46f135b00c00373fcd029786ccef2b02b5b
A workaround is to boot with ‘nothreadirqs’ in the kernel command line.
** Also affects: linux-meta-lowlatency (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1430230
Title:
Log flooding with warning message when using linux-lowlatency kernel
Status in One Hundred Papercuts:
Confirmed
Status in X.org xf86-video-intel:
Fix Released
Status in linux-meta-lowlatency package in Ubuntu:
New
Status in xserver-xorg-video-intel package in Ubuntu:
Confirmed
Bug description:
In Vivid, when booting with lowlatency kernel (and possibly with
generic kernel and threadirqs), Intel graphics driver will flood the
logs with warning:
Mar 10 09:35:43 franck-ThinkPad-T430s kernel: [ 2216.247652] ------------[
cut here ]------------
Mar 10 09:35:43 franck-ThinkPad-T430s kernel: [ 2216.247683] WARNING: CPU: 3
PID: 659 at
/build/buildd/linux-3.19.0/drivers/gpu/drm/i915/intel_display.c:9705
intel_check_page_flip+0xa2/0xf0 [i915]()
Mar 10 09:35:43 franck-ThinkPad-T430s kernel: [ 2216.247685]
WARN_ON(!in_irq())
Mar 10 09:35:43 franck-ThinkPad-T430s kernel: [ 2216.247686] Modules linked
in: md4 nls_utf8 cifs fscache msr acpi_call(OE) xt_CHECKSUM iptable_mangle
ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 bridge stp llc
ebtable_filter ebtables pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE)
vboxdrv(OE) binfmt_misc rfcomm bnep nls_iso8859_1 hid_apple intel_rapl iosf_mbi
x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel uvcvideo kvm
videobuf2_vmalloc videobuf2_memops crct10dif_pclmul i915 videobuf2_core
crc32_pclmul ghash_clmulni_intel v4l2_common videodev aesni_intel media
aes_x86_64 btusb lrw gf128mul glue_helper bluetooth ablk_helper cryptd arc4
snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic iwldvm
dm_multipath scsi_dh snd_hda_intel mac80211 snd_hda_controller snd_hda_codec
joydev snd_hwdep serio_raw drm_kms_helper iwlwifi snd_pcm thinkpad_acpi
cfg80211 snd_seq_midi snd_seq_midi_event nvram snd_rawmidi snd_seq ip6t_REJECT
nf_reject_ipv6 snd_seq_device nf_log_ipv6 lpc_ich snd_timer drm shpchp xt_hl
snd mei_me nf_conntrack_ipv6 mei nf_defrag_ipv6 i2c_algo_bit ip6t_rt soundcore
wmi video mac_hid ipt_REJECT nf_reject_ipv4 nf_log_ipv4 nf_log_common xt_LOG
xt_multiport xt_limit xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_addrtype
xt_conntrack ip6table_filter ip6_tables nf_conntrack_netbios_ns
nf_conntrack_broadcast cuse nf_nat_ftp nf_nat nf_conntrack_ftp parport_pc
nf_conntrack ppdev iptable_filter ip_tables lp x_tables parport autofs4 btrfs
xor raid6_pq hid_generic usbhid hid psmouse ahci e1000e sdhci_pci libahci sdhci
ptp pps_core
Mar 10 09:35:43 franck-ThinkPad-T430s kernel: [ 2216.247768] CPU: 3 PID: 659
Comm: irq/32-i915 Tainted: G W OE 3.19.0-7-lowlatency #7-Ubuntu
Mar 10 09:35:43 franck-ThinkPad-T430s kernel: [ 2216.247770] Hardware name:
LENOVO 2353CTO/2353CTO, BIOS G7ETA0WW (2.60 ) 05/14/2014
Mar 10 09:35:43 franck-ThinkPad-T430s kernel: [ 2216.247781]
ffffffffc0be7010 ffff88042a353c98 ffffffff817c5402 ffff88043e2cfd78
Mar 10 09:35:43 franck-ThinkPad-T430s kernel: [ 2216.247784]
ffff88042a353ce8 ffff88042a353cd8 ffffffff8107738a ffff88042a353cd8
Mar 10 09:35:43 franck-ThinkPad-T430s kernel: [ 2216.247786]
ffff880428f3f000 ffff880428f5e800 0000000000000000 0000000000000000
Mar 10 09:35:43 franck-ThinkPad-T430s kernel: [ 2216.247788] Call Trace:
Mar 10 09:35:43 franck-ThinkPad-T430s kernel: [ 2216.247795]
[<ffffffff817c5402>] dump_stack+0x4c/0x6e
Mar 10 09:35:43 franck-ThinkPad-T430s kernel: [ 2216.247805]
[<ffffffff8107738a>] warn_slowpath_common+0x8a/0xc0
Mar 10 09:35:43 franck-ThinkPad-T430s kernel: [ 2216.247814]
[<ffffffff81077406>] warn_slowpath_fmt+0x46/0x50
Mar 10 09:35:43 franck-ThinkPad-T430s kernel: [ 2216.247830]
[<ffffffffc0b92482>] intel_check_page_flip+0xa2/0xf0 [i915]
Mar 10 09:35:43 franck-ThinkPad-T430s kernel: [ 2216.247843]
[<ffffffffc0b5f4d8>] ironlake_irq_handler+0x428/0x1010 [i915]
Mar 10 09:35:43 franck-ThinkPad-T430s kernel: [ 2216.247847]
[<ffffffff8109b55d>] ? finish_task_switch+0x5d/0x100
Mar 10 09:35:43 franck-ThinkPad-T430s kernel: [ 2216.247854]
[<ffffffff810cfc60>] ? irq_thread_fn+0x50/0x50
Mar 10 09:35:43 franck-ThinkPad-T430s kernel: [ 2216.247858]
[<ffffffff810cfc8d>] irq_forced_thread_fn+0x2d/0x70
Mar 10 09:35:43 franck-ThinkPad-T430s kernel: [ 2216.247861]
[<ffffffff810d01af>] irq_thread+0x11f/0x150
Mar 10 09:35:43 franck-ThinkPad-T430s kernel: [ 2216.247865]
[<ffffffff810cfd00>] ? wake_threads_waitq+0x30/0x30
Mar 10 09:35:43 franck-ThinkPad-T430s kernel: [ 2216.247868]
[<ffffffff810d0090>] ? irq_thread_check_affinity+0x90/0x90
Mar 10 09:35:43 franck-ThinkPad-T430s kernel: [ 2216.247871]
[<ffffffff81095bc9>] kthread+0xc9/0xe0
Mar 10 09:35:43 franck-ThinkPad-T430s kernel: [ 2216.247874]
[<ffffffff81095b00>] ? kthread_create_on_node+0x1c0/0x1c0
Mar 10 09:35:43 franck-ThinkPad-T430s kernel: [ 2216.247877]
[<ffffffff817cc33c>] ret_from_fork+0x7c/0xb0
Mar 10 09:35:43 franck-ThinkPad-T430s kernel: [ 2216.247880]
[<ffffffff81095b00>] ? kthread_create_on_node+0x1c0/0x1c0
Mar 10 09:35:43 franck-ThinkPad-T430s kernel: [ 2216.247883] ---[ end trace
fa4376848cde145f ]---
There seems to be a bug report here
https://bugs.freedesktop.org/show_bug.cgi?id=89321
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2
ProcVersionSignature: Ubuntu 3.19.0-7.7-generic 3.19.0
Uname: Linux 3.19.0-7-generic x86_64
.tmp.unity.support.test.0:
ApportVersion: 2.16.2-0ubuntu2
Architecture: amd64
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Tue Mar 10 10:46:28 2015
DistUpgraded: 2015-03-09 18:17:36,430 DEBUG enabling apt cron job
DistroCodename: vivid
DistroVariant: ubuntu
DkmsStatus:
acpi-call, 1.1.0, 3.19.0-7-generic, x86_64: installed
virtualbox, 4.3.24, 3.19.0-7-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166]
(rev 09) (prog-if 00 [VGA controller])
Subsystem: Lenovo Device [17aa:21fb]
InstallationDate: Installed on 2014-12-13 (86 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
MachineType: LENOVO 2353CTO
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-7-generic.efi.signed
root=/dev/mapper/ubuntu--vg-lv--root ro quiet splash nomdmonddf nomdmonisw
vt.handoff=7
SourcePackage: xserver-xorg-video-intel
UpgradeStatus: Upgraded to vivid on 2015-03-09 (0 days ago)
dmi.bios.date: 05/14/2014
dmi.bios.vendor: LENOVO
dmi.bios.version: G7ETA0WW (2.60 )
dmi.board.asset.tag: Not Available
dmi.board.name: 2353CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Defined
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvrG7ETA0WW(2.60):bd05/14/2014:svnLENOVO:pn2353CTO:pvrThinkPadT430s:rvnLENOVO:rn2353CTO:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 2353CTO
dmi.product.version: ThinkPad T430s
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.12.1+15.04.20150303-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.59-0ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.0-0ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.0-0ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.16.2.901-1ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917-1~exp1ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:1.0.11-1ubuntu2
xserver.bootTime: Tue Mar 10 10:09:26 2015
xserver.configfile: default
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
product id 12876
vendor SEC
xserver.version: 2:1.16.2.901-1ubuntu4
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