Re: [Intel-gfx] drivers/gpu/drm/i915/intel_display.c:9717 intel_check_page_flip+0xb3/0xd2()
Could someone give me a clue if the issues I'm seeing are more likely to be solved with a newer kernel or a newer userland driver (xserver-xorg-video-intel) ? Thanks, Marc On Sat, Jul 18, 2015 at 01:35:53PM -0700, Marc MERLIN wrote: > On Wed, Jul 15, 2015 at 04:13:23PM +, Marc MERLIN wrote: > > kernel: 3.19.8 > > xserver-xorg-video-intel 2:2.99.917-1 on debian > > X.Org X Server 1.17.1 > > > > [254670.214607] pool[30720]: segfault at 20 ip 7f0e68d3f534 sp > > 7f0dd57f9500 error 4 in libgio-2.0.so.0.4200.1[7f0e68cfa000+171000] > > [254670.781126] [ cut here ] > > [254670.781140] WARNING: CPU: 0 PID: 29514 at > > drivers/gpu/drm/i915/intel_display.c:9717 intel_check_page_flip+0xb3/0xd2() > > [254670.781143] Kicking stuck page flip: queued at 6027120, now 6027126 > > [254670.781144] Modules linked in: btusb uvcvideo videobuf2_vmalloc > > videobuf2_memops videobuf2_core v4l2_common videodev xhci_pci iwlmvm > > mac80211 iwlwifi cfg80211 ctr ccm rndis_host cdc_ether usbnet e1000e > > nls_utf8 nls_cp437 vfat fat ipt_REJECT nf_reject_ipv4 xt_tcpudp nf_log_ipv4 > > nf_log_common xt_LOG iptable_mangle ip6table_filter ip6_tables ebtable_nat > > ebtables rfcomm bnep pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) > > vboxdrv(OE) xt_addrtype xt_conntrack ipt_MASQUERADE nf_nat_masquerade_ipv4 > > iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 iptable_filter > > ip_tables x_tables nf_nat nf_conntrack bridge stp llc autofs4 binfmt_misc > > uinput nfsd auth_rpcgss nfs_acl nfs lockd grace fscache sunrpc ecryptfs > > configs ppdev parport_pc lp parport input_polldev loop firewire_sbp2 > > firewire_core crc_itu_t bluetooth media joydev arc4 snd_hda_codec_realtek > > snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_hda_controller > > intel_rapl snd_hda_codec iosf_mbi snd_hwdep snd_pcm_oss x > > 86_pkg_temp_thermal intel_powerclamp snd_mixer_oss snd_pcm coretemp > > rtsx_pci_ms kvm_intel kvm snd_seq_midi iTCO_wdt crct10dif_pclmul > > snd_seq_midi_event memstick iTCO_vendor_support rtsx_pci_sdmmc crc32_pclmul > > snd_rawmidi ghash_clmulni_intel thinkpad_acpi xhci_hcd snd_seq nvram > > i2c_i801 snd_seq_device psmouse snd_timer rtsx_pci rfkill usbcore lpc_ich > > microcode snd sg serio_raw shpchp soundcore usb_common tpm_tis pcspkr tpm > > battery ac ie31200_edac edac_core intel_smartconnect wmi evdev processor > > sata_sil24 r8169 mii fuse fan raid456 multipath mmc_block mmc_core dm_crypt > > dm_mod async_raid6_recov async_pq async_xor async_memcpy async_tx > > blowfish_x86_64 blowfish_common ecb xts crc32c_intel aesni_intel aes_x86_64 > > glue_helper lrw gf128mul ptp ablk_helper cryptd pps_core thermal [last > > unloaded: btusb] > > [254670.781278] CPU: 0 PID: 29514 Comm: kworker/u16:1 Tainted: GW > > OE 3.19.8-amd64-i915-volpreempt-s20150421rc3 #1 > > I'm also seeing this (which looks related): > [502148.620412] WARNING: CPU: 6 PID: 30706 at > drivers/gpu/drm/i915/intel_display.c:3630 > intel_crtc_wait_for_pending_flips+0x12a/0x1ad() > [502148.620413] Removing stuck page flip > [502148.620413] Modules linked in: iwlmvm mac80211 iwlwifi cfg80211 e1000e > btusb uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common > videodev xhci_pci ctr ccm rndis_host cdc_ether usbnet nls_utf8 nls_cp437 vfat > fat ipt_REJECT nf_reject_ipv4 xt_tcpudp nf_log_ipv4 nf_log_common xt_LOG > iptable_mangle ip6table_filter ip6_tables ebtable_nat ebtables rfcomm bnep > pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) xt_addrtype > xt_conntrack ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat > nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 iptable_filter ip_tables > x_tables nf_nat nf_conntrack bridge stp llc autofs4 binfmt_misc uinput nfsd > auth_rpcgss nfs_acl nfs lockd grace fscache sunrpc ecryptfs configs ppdev > parport_pc lp parport input_polldev loop firewire_sbp2 firewire_core > crc_itu_t bluetooth media joydev arc4 snd_hda_codec_realtek > snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_hda_controller > intel_rapl snd_hda_codec iosf_mbi snd_hwdep snd_pcm_oss x86_pkg_temp_thermal > intel_powerclamp snd_mixer_oss snd_pcm coretemp rtsx_pci_ms kvm_intel kvm > snd_seq_midi iTCO_wdt crct10dif_pclmul snd_seq_midi_event memstick > iTCO_vendor_support rtsx_pci_sdmmc crc32_pclmul snd_rawmidi > ghash_clmulni_intel thinkpad_acpi xhci_hcd snd_seq nvram i2c_i801 > snd_seq_device psmouse snd_timer rtsx_pci rfkill usbcore lpc_ich microcode > snd sg serio_raw shpchp soundcore usb_common tpm_tis pcspkr tpm battery ac > ie31200_edac edac_core intel_smartconnect wmi evdev processor sata_sil24 > r8169 mii fuse fan raid456 multipath mmc_block mmc_core dm_crypt dm_mod > async_raid6_recov async_pq async_xor async_memcpy async_tx blowfish_x86_64 > blowfish_common ecb xts crc32c_intel aesni_intel aes_x86_64 glue_helper lrw > gf128mul ptp ablk_helper cryptd pps_core thermal [last unloaded: cfg80211] > [502148
Re: [Intel-gfx] drivers/gpu/drm/i915/intel_display.c:9717 intel_check_page_flip+0xb3/0xd2()
On Wed, Jul 15, 2015 at 04:13:23PM +, Marc MERLIN wrote: > kernel: 3.19.8 > xserver-xorg-video-intel 2:2.99.917-1 on debian > X.Org X Server 1.17.1 > > [254670.214607] pool[30720]: segfault at 20 ip 7f0e68d3f534 sp > 7f0dd57f9500 error 4 in libgio-2.0.so.0.4200.1[7f0e68cfa000+171000] > [254670.781126] [ cut here ] > [254670.781140] WARNING: CPU: 0 PID: 29514 at > drivers/gpu/drm/i915/intel_display.c:9717 intel_check_page_flip+0xb3/0xd2() > [254670.781143] Kicking stuck page flip: queued at 6027120, now 6027126 > [254670.781144] Modules linked in: btusb uvcvideo videobuf2_vmalloc > videobuf2_memops videobuf2_core v4l2_common videodev xhci_pci iwlmvm mac80211 > iwlwifi cfg80211 ctr ccm rndis_host cdc_ether usbnet e1000e nls_utf8 > nls_cp437 vfat fat ipt_REJECT nf_reject_ipv4 xt_tcpudp nf_log_ipv4 > nf_log_common xt_LOG iptable_mangle ip6table_filter ip6_tables ebtable_nat > ebtables rfcomm bnep pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) > vboxdrv(OE) xt_addrtype xt_conntrack ipt_MASQUERADE nf_nat_masquerade_ipv4 > iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 iptable_filter > ip_tables x_tables nf_nat nf_conntrack bridge stp llc autofs4 binfmt_misc > uinput nfsd auth_rpcgss nfs_acl nfs lockd grace fscache sunrpc ecryptfs > configs ppdev parport_pc lp parport input_polldev loop firewire_sbp2 > firewire_core crc_itu_t bluetooth media joydev arc4 snd_hda_codec_realtek > snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_hda_controller > intel_rapl snd_hda_codec iosf_mbi snd_hwdep snd_pcm_oss x > 86_pkg_temp_thermal intel_powerclamp snd_mixer_oss snd_pcm coretemp > rtsx_pci_ms kvm_intel kvm snd_seq_midi iTCO_wdt crct10dif_pclmul > snd_seq_midi_event memstick iTCO_vendor_support rtsx_pci_sdmmc crc32_pclmul > snd_rawmidi ghash_clmulni_intel thinkpad_acpi xhci_hcd snd_seq nvram i2c_i801 > snd_seq_device psmouse snd_timer rtsx_pci rfkill usbcore lpc_ich microcode > snd sg serio_raw shpchp soundcore usb_common tpm_tis pcspkr tpm battery ac > ie31200_edac edac_core intel_smartconnect wmi evdev processor sata_sil24 > r8169 mii fuse fan raid456 multipath mmc_block mmc_core dm_crypt dm_mod > async_raid6_recov async_pq async_xor async_memcpy async_tx blowfish_x86_64 > blowfish_common ecb xts crc32c_intel aesni_intel aes_x86_64 glue_helper lrw > gf128mul ptp ablk_helper cryptd pps_core thermal [last unloaded: btusb] > [254670.781278] CPU: 0 PID: 29514 Comm: kworker/u16:1 Tainted: GW OE > 3.19.8-amd64-i915-volpreempt-s20150421rc3 #1 I'm also seeing this (which looks related): [502148.620412] WARNING: CPU: 6 PID: 30706 at drivers/gpu/drm/i915/intel_display.c:3630 intel_crtc_wait_for_pending_flips+0x12a/0x1ad() [502148.620413] Removing stuck page flip [502148.620413] Modules linked in: iwlmvm mac80211 iwlwifi cfg80211 e1000e btusb uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev xhci_pci ctr ccm rndis_host cdc_ether usbnet nls_utf8 nls_cp437 vfat fat ipt_REJECT nf_reject_ipv4 xt_tcpudp nf_log_ipv4 nf_log_common xt_LOG iptable_mangle ip6table_filter ip6_tables ebtable_nat ebtables rfcomm bnep pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) xt_addrtype xt_conntrack ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 iptable_filter ip_tables x_tables nf_nat nf_conntrack bridge stp llc autofs4 binfmt_misc uinput nfsd auth_rpcgss nfs_acl nfs lockd grace fscache sunrpc ecryptfs configs ppdev parport_pc lp parport input_polldev loop firewire_sbp2 firewire_core crc_itu_t bluetooth media joydev arc4 snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_hda_controller intel_rapl snd_hda_codec iosf_mbi snd_hwdep snd_pcm_oss x86_pkg_temp_thermal intel_powerclamp snd_mixer_oss snd_pcm coretemp rtsx_pci_ms kvm_intel kvm snd_seq_midi iTCO_wdt crct10dif_pclmul snd_seq_midi_event memstick iTCO_vendor_support rtsx_pci_sdmmc crc32_pclmul snd_rawmidi ghash_clmulni_intel thinkpad_acpi xhci_hcd snd_seq nvram i2c_i801 snd_seq_device psmouse snd_timer rtsx_pci rfkill usbcore lpc_ich microcode snd sg serio_raw shpchp soundcore usb_common tpm_tis pcspkr tpm battery ac ie31200_edac edac_core intel_smartconnect wmi evdev processor sata_sil24 r8169 mii fuse fan raid456 multipath mmc_block mmc_core dm_crypt dm_mod async_raid6_recov async_pq async_xor async_memcpy async_tx blowfish_x86_64 blowfish_common ecb xts crc32c_intel aesni_intel aes_x86_64 glue_helper lrw gf128mul ptp ablk_helper cryptd pps_core thermal [last unloaded: cfg80211] [502148.620465] CPU: 6 PID: 30706 Comm: Xorg Tainted: GW OE 3.19.8-amd64-i915-volpreempt-s20150421rc3 #1 [502148.620466] Hardware name: LENOVO 20BECT0/20BECT0, BIOS GMET28WW (1.08 ) 09/18/2013 [502148.620466] 0009 8801450efb78 81678201 a11d [502148.620468] 8801450efbc8 8801450efbb8 810556a7 [502148.620
Re: [Intel-gfx] drivers/gpu/drm/i915/intel_display.c:9717 intel_check_page_flip+0xb3/0xd2()
On Wed, Jul 15, 2015 at 09:03:33AM -0700, Marc MERLIN wrote: > kernel: 3.19.8 > xserver-xorg-video-intel 2:2.99.917-1 on debian > X.Org X Server 1.17.1 Actually I forgot to mention: Thinkpad T540p [ 39406.173] (--) intel(0): Integrated Graphics Chipset: Intel(R) HD Graphics 4600 And I do get those errors on occasion when coming back from S3 sleep and having switched to a text console at S3 sleep: [41566.477155] ata6.00: configured for UDMA/133 [41566.765323] dmar: DRHD: handling fault status reg 2 [41566.769256] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr 73 [41566.769256] DMAR:[fault reason 05] PTE Write access is not set [41566.940368] dmar: DRHD: handling fault status reg 2 [41566.944387] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr 73 [41566.944387] DMAR:[fault reason 05] PTE Write access is not set [41567.324708] dmar: DRHD: handling fault status reg 2 [41567.328673] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr 73 [41567.328673] DMAR:[fault reason 05] PTE Write access is not set [41567.336538] dmar: DRHD: handling fault status reg 2 [41567.340149] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr 73 [41567.340149] DMAR:[fault reason 05] PTE Write access is not set [41567.492033] dmar: DRHD: handling fault status reg 2 [41567.495830] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr 73 [41567.495830] DMAR:[fault reason 05] PTE Write access is not set [41567.656865] EXT4-fs (sdb6): re-mounted. Opts: stripe=4,data=ordered,commit=600 [41567.658203] dmar: DRHD: handling fault status reg 2 [41567.658208] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr 73 [41567.658208] DMAR:[fault reason 05] PTE Write access is not set [41567.668947] dmar: DRHD: handling fault status reg 2 [41567.668953] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr 73 [41567.668953] DMAR:[fault reason 05] PTE Write access is not set [41567.731944] EXT4-fs (sda1): re-mounted. Opts: stripe=128,data=ordered,commit=600 [41567.824381] dmar: DRHD: handling fault status reg 2 [41567.828206] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr 73 [41567.828206] DMAR:[fault reason 05] PTE Write access is not set [41567.939248] dmar: DRHD: handling fault status reg 2 [41567.943080] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr 73 [41567.943080] DMAR:[fault reason 05] PTE Write access is not set [41567.990554] dmar: DRHD: handling fault status reg 2 [41567.994417] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr 73 [41567.994417] DMAR:[fault reason 05] PTE Write access is not set [41568.156705] dmar: DRHD: handling fault status reg 2 [41568.160712] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr 73 [41568.160712] DMAR:[fault reason 05] PTE Write access is not set [41568.322865] dmar: DRHD: handling fault status reg 2 [41568.326747] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr 73 [41568.326747] DMAR:[fault reason 05] PTE Write access is not set [41568.489046] dmar: DRHD: handling fault status reg 2 [41568.492954] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr 73 [41568.492954] DMAR:[fault reason 05] PTE Write access is not set [41568.655179] dmar: DRHD: handling fault status reg 2 [41568.659130] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr 73 [41568.659130] DMAR:[fault reason 05] PTE Write access is not set [41568.742316] dmar: DRHD: handling fault status reg 2 [41568.742327] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr 73 [41568.742327] DMAR:[fault reason 05] PTE Write access is not set [41568.742933] dmar: DRHD: handling fault status reg 2 [41568.742940] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr 73 [41568.742940] DMAR:[fault reason 05] PTE Write access is not set [41568.748210] dmar: DRHD: handling fault status reg 2 [41568.748224] dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr 73 [41568.748224] DMAR:[fault reason 05] PTE Write access is not set [42274.880619] PM: Syncing filesystems ... done. [42274.980390] PM: Preparing system for mem sleep -- "A mouse is a device used to point at the xterm you want to type in" - A.S.R. Microsoft is to operating systems what McDonalds is to gourmet cooking Home page: http://marc.merlins.org/ | PGP 1024R/763BE901 ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
[Intel-gfx] drivers/gpu/drm/i915/intel_display.c:9717 intel_check_page_flip+0xb3/0xd2()
kernel: 3.19.8 xserver-xorg-video-intel 2:2.99.917-1 on debian X.Org X Server 1.17.1 [254670.214607] pool[30720]: segfault at 20 ip 7f0e68d3f534 sp 7f0dd57f9500 error 4 in libgio-2.0.so.0.4200.1[7f0e68cfa000+171000] [254670.781126] [ cut here ] [254670.781140] WARNING: CPU: 0 PID: 29514 at drivers/gpu/drm/i915/intel_display.c:9717 intel_check_page_flip+0xb3/0xd2() [254670.781143] Kicking stuck page flip: queued at 6027120, now 6027126 [254670.781144] Modules linked in: btusb uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev xhci_pci iwlmvm mac80211 iwlwifi cfg80211 ctr ccm rndis_host cdc_ether usbnet e1000e nls_utf8 nls_cp437 vfat fat ipt_REJECT nf_reject_ipv4 xt_tcpudp nf_log_ipv4 nf_log_common xt_LOG iptable_mangle ip6table_filter ip6_tables ebtable_nat ebtables rfcomm bnep pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) xt_addrtype xt_conntrack ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 iptable_filter ip_tables x_tables nf_nat nf_conntrack bridge stp llc autofs4 binfmt_misc uinput nfsd auth_rpcgss nfs_acl nfs lockd grace fscache sunrpc ecryptfs configs ppdev parport_pc lp parport input_polldev loop firewire_sbp2 firewire_core crc_itu_t bluetooth media joydev arc4 snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_hda_controller intel_rapl snd_hda_codec iosf_mbi snd_hwdep snd_pcm_oss x 86_pkg_temp_thermal intel_powerclamp snd_mixer_oss snd_pcm coretemp rtsx_pci_ms kvm_intel kvm snd_seq_midi iTCO_wdt crct10dif_pclmul snd_seq_midi_event memstick iTCO_vendor_support rtsx_pci_sdmmc crc32_pclmul snd_rawmidi ghash_clmulni_intel thinkpad_acpi xhci_hcd snd_seq nvram i2c_i801 snd_seq_device psmouse snd_timer rtsx_pci rfkill usbcore lpc_ich microcode snd sg serio_raw shpchp soundcore usb_common tpm_tis pcspkr tpm battery ac ie31200_edac edac_core intel_smartconnect wmi evdev processor sata_sil24 r8169 mii fuse fan raid456 multipath mmc_block mmc_core dm_crypt dm_mod async_raid6_recov async_pq async_xor async_memcpy async_tx blowfish_x86_64 blowfish_common ecb xts crc32c_intel aesni_intel aes_x86_64 glue_helper lrw gf128mul ptp ablk_helper cryptd pps_core thermal [last unloaded: btusb] [254670.781278] CPU: 0 PID: 29514 Comm: kworker/u16:1 Tainted: GW OE 3.19.8-amd64-i915-volpreempt-s20150421rc3 #1 [254670.781280] Hardware name: LENOVO 20BECT0/20BECT0, BIOS GMET28WW (1.08 ) 09/18/2013 [254670.781288] Workqueue: writeback bdi_writeback_workfn (flush-btrfs-2) [254670.781291] 0009 88041d203d68 81678201 0f60 [254670.781294] 88041d203db8 88041d203da8 810556a7 88041d203dc8 [254670.781297] 81496455 88040b0a9800 88040b0de000 [254670.781300] Call Trace: [254670.781302][] dump_stack+0x45/0x57 [254670.781314] [] warn_slowpath_common+0xa1/0xbb [254670.781320] [] ? intel_check_page_flip+0xb3/0xd2 [254670.781324] [] warn_slowpath_fmt+0x46/0x48 [254670.781327] [] intel_check_page_flip+0xb3/0xd2 [254670.781330] [] ironlake_irq_handler+0x37d/0x927 [254670.781334] [] ? rebalance_domains+0xe0/0x20e [254670.781340] [] handle_irq_event_percpu+0x5e/0x199 [254670.781343] [] handle_irq_event+0x3f/0x5b [254670.781348] [] ? apic_ack_edge+0x24/0x28 [254670.781353] [] handle_edge_irq+0xae/0xc9 [254670.781357] [] handle_irq+0x22/0x2c [254670.781362] [] do_IRQ+0x4d/0xc1 [254670.781365] [] common_interrupt+0x6d/0x6d [254670.781367][] ? page_cache_get_speculative+0x4/0x28 [254670.781376] [] ? find_get_pages_contig+0x6a/0x112 [254670.781381] [] lock_delalloc_pages+0x7e/0x18c [254670.781385] [] find_lock_delalloc_range.constprop.23+0xd4/0x19c [254670.781389] [] ? end_extent_writepage+0x9c/0x9c [254670.781392] [] writepage_delalloc.isra.16+0x7c/0x134 [254670.781396] [] __extent_writepage+0x13a/0x1f1 [254670.781401] [] extent_write_cache_pages.isra.15.constprop.30+0x18b/0x2c3 [254670.781404] [] extent_writepages+0x4b/0x5c [254670.781410] [] ? btrfs_submit_direct+0x3ef/0x3ef [254670.781413] [] btrfs_writepages+0x28/0x2a [254670.781417] [] do_writepages+0x1e/0x2c [254670.781422] [] __writeback_single_inode+0x76/0x1fc [254670.781426] [] writeback_sb_inodes+0x1e3/0x328 [254670.781429] [] __writeback_inodes_wb+0x74/0xb9 [254670.781432] [] wb_writeback+0x13e/0x285 [254670.781437] [] ? set_worker_desc+0x60/0x6d [254670.781441] [] ? global_dirty_limits+0x1b/0x103 [254670.781444] [] bdi_writeback_workfn+0x1d9/0x321 [254670.781447] [] ? load_TLS+0xb/0xf [254670.781450] [] process_one_work+0x17e/0x2a7 [254670.781453] [] worker_thread+0x1c9/0x2a0 [254670.781456] [] ? process_scheduled_works+0x2f/0x2f [254670.781459] [] kthread+0xae/0xb6 [254670.781462] [] ? __kthread_parkme+0x61/0x61 [254670.781466] [] ret_from_fork+0x58/0x90 [254670.781469] [] ? __kthread_parkme+0x61/0x61 [254670.781471] ---[ end trace 6a48a335fae8b553 ]---
