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Message-ID: <alpine.LNX.2.00.1310241334000.30926@pobox.suse.cz> Date: Thu, 24 Oct 2013 13:36:47 +0100 (BST) From: Jiri Kosina <jkosina@...e.cz> To: Egbert Eich <eich@...e.com> Cc: Daniel Vetter <daniel.vetter@...ll.ch>, Egbert Eich <eich@...e.de>, Jani Nikula <jani.nikula@...el.com>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, dri-devel <dri-devel@...ts.freedesktop.org>, intel-gfx <intel-gfx@...ts.freedesktop.org> Subject: Re: HPD flood warning since b8f102e8b On Thu, 24 Oct 2013, Jiri Kosina wrote: > I have this: > > [357128.184113] [drm] HPD interrupt storm detected on connector DP-3: switching from hotplug detection to polling > > It appeared in the log approximately 5 seconds after resume has been > completed. Okay, and it just happened during resume from RAM (it was a very long series of repeating the same trace, I am putting here just the last portion): [362634.813953] ------------[ cut here ]------------ [362634.813980] WARNING: CPU: 0 PID: 666 at drivers/gpu/drm/i915/i915_irq.c:1001 i965_irq_handler+0x492/0x680 [i915]() [362634.813981] Received HPD interrupt although disabled [362634.814021] Modules linked in: sr_mod cdrom dm_mod fuse af_packet tun iptable_mangle xt_DSCP nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack iptable_filter ip_tables x_tables nls_cp1250 nls_cp437 vfat fat rfcomm bnep cpufreq_conservative cpufreq_userspace cpufreq_powersave iTCO_wdt iTCO_vendor_support snd_hda_codec_conexant kvm_intel kvm usb_storage snd_hda_intel iwldvm snd_hda_codec mac80211 snd_hwdep iwlwifi sg snd_pcm cfg80211 snd_seq btusb bluetooth snd_timer pcspkr snd_seq_device thinkpad_acpi lpc_ich rfkill mfd_core i2c_i801 tpm_tis ac tpm battery snd tpm_bios e1000e soundcore snd_page_alloc wmi acpi_cpufreq ehci_pci ptp pps_core autofs4 uhci_hcd ehci_hcd usbcore usb_common i915 drm_kms_helper drm i2c_algo_bit video button edd fan processor ata_generic thermal thermal_sys [362634.814028] CPU: 0 PID: 666 Comm: rs:main Q:Reg Tainted: G W 3.12.0-rc4-00006-g162bdaf-dirty #1 [362634.814029] Hardware name: LENOVO 7470BN2/7470BN2, BIOS 6DET38WW (2.02 ) 12/19/2008 [362634.814033] 00000000000003e9 ffff88007c203d18 ffffffff81583863 ffff88007c203d58 [362634.814035] ffffffff8104d297 ffff88007c203d98 0000000000000010 0000000000000002 [362634.814038] ffff880037180000 0000000000000005 ffff880037180000 ffff88007c203db8 [362634.814039] Call Trace: [362634.814044] <IRQ> [<ffffffff81583863>] dump_stack+0x7a/0x97 [362634.814048] [<ffffffff8104d297>] warn_slowpath_common+0x87/0xb0 [362634.814051] [<ffffffff8104d361>] warn_slowpath_fmt+0x41/0x50 [362634.814067] [<ffffffffa00c7be2>] i965_irq_handler+0x492/0x680 [i915] [362634.814072] [<ffffffff810a41bc>] handle_irq_event_percpu+0xac/0x220 [362634.814074] [<ffffffff810a4379>] handle_irq_event+0x49/0x70 [362634.814077] [<ffffffff810a7bef>] handle_edge_irq+0x7f/0x150 [362634.814080] [<ffffffff81004a89>] handle_irq+0x59/0x150 [362634.814083] [<ffffffff81052b06>] ? irq_enter+0x16/0x90 [362634.814085] [<ffffffff8100403b>] do_IRQ+0x5b/0xe0 [362634.814089] [<ffffffff81589def>] common_interrupt+0x6f/0x6f [362634.814093] <EOI> [<ffffffff810bc850>] ? lock_acquire+0x110/0x130 [362634.814096] [<ffffffff8158dae0>] ? notifier_call_chain+0xa0/0xa0 [362634.814098] [<ffffffff8158db4a>] __atomic_notifier_call_chain+0x6a/0xc0 [362634.814101] [<ffffffff8158dae0>] ? notifier_call_chain+0xa0/0xa0 [362634.814103] [<ffffffff8158dbb1>] atomic_notifier_call_chain+0x11/0x20 [362634.814106] [<ffffffff813b607f>] do_con_write+0x22f/0xa10 [362634.814109] [<ffffffff81585e6f>] ? mutex_lock_nested+0x2ef/0x370 [362634.814111] [<ffffffff810bb2bd>] ? trace_hardirqs_on_caller+0x13d/0x1e0 [362634.814115] [<ffffffff8139df7d>] ? process_output_block+0x3d/0x1e0 [362634.814118] [<ffffffff813b68b9>] con_write+0x19/0x30 [362634.814120] [<ffffffff8139e010>] process_output_block+0xd0/0x1e0 [362634.814123] [<ffffffff8139ee0b>] n_tty_write+0x18b/0x370 [362634.814126] [<ffffffff810834a0>] ? try_to_wake_up+0x240/0x240 [362634.814129] [<ffffffff8139c67c>] do_tty_write+0xbc/0x200 [362634.814131] [<ffffffff8139ec80>] ? n_tty_ioctl+0x110/0x110 [362634.814134] [<ffffffff8139c884>] tty_write+0xc4/0xf0 [362634.814137] [<ffffffff81190bf7>] vfs_write+0xe7/0x190 [362634.814139] [<ffffffff81191560>] SyS_write+0x60/0xb0 [362634.814142] [<ffffffff81591fa2>] system_call_fastpath+0x16/0x1b [362634.814144] ---[ end trace f54ed427593b8ca0 ]--- [362634.894446] ------------[ cut here ]------------ [362634.894476] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/i915/i915_irq.c:1001 i965_irq_handler+0x492/0x680 [i915]() [362634.894479] Received HPD interrupt although disabled [362634.894481] Modules linked in: sr_mod cdrom dm_mod fuse af_packet tun iptable_mangle xt_DSCP nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack iptable_filter ip_tables x_tables nls_cp1250 nls_cp437 vfat fat rfcomm bnep cpufreq_conservative cpufreq_userspace cpufreq_powersave iTCO_wdt iTCO_vendor_support snd_hda_codec_conexant kvm_intel kvm usb_storage snd_hda_intel iwldvm snd_hda_codec mac80211 snd_hwdep iwlwifi sg snd_pcm cfg80211 snd_seq btusb bluetooth snd_timer pcspkr snd_seq_device thinkpad_acpi lpc_ich rfkill mfd_core i2c_i801 tpm_tis ac tpm battery snd tpm_bios e1000e soundcore snd_page_alloc wmi acpi_cpufreq ehci_pci ptp pps_core autofs4 uhci_hcd ehci_hcd usbcore usb_common i915 drm_kms_helper drm i2c_algo_bit video button edd fan processor ata_generic thermal thermal_sys [362634.894562] CPU: 1 PID: 1 Comm: systemd Tainted: G W 3.12.0-rc4-00006-g162bdaf-dirty #1 [362634.894564] Hardware name: LENOVO 7470BN2/7470BN2, BIOS 6DET38WW (2.02 ) 12/19/2008 [362634.894567] 00000000000003e9 ffff88007c283d18 ffffffff81583863 ffff88007c283d58 [362634.894572] ffffffff8104d297 ffff88007c283d98 0000000000000010 0000000000000002 [362634.894577] ffff880037180000 0000000000000005 ffff880037180000 ffff88007c283db8 [362634.894582] Call Trace: [362634.894585] <IRQ> [<ffffffff81583863>] dump_stack+0x7a/0x97 [362634.894595] [<ffffffff8104d297>] warn_slowpath_common+0x87/0xb0 [362634.894599] [<ffffffff8104d361>] warn_slowpath_fmt+0x41/0x50 [362634.894618] [<ffffffffa00c7be2>] i965_irq_handler+0x492/0x680 [i915] [362634.894623] [<ffffffff810bb1f2>] ? trace_hardirqs_on_caller+0x72/0x1e0 [362634.894630] [<ffffffff810a41bc>] handle_irq_event_percpu+0xac/0x220 [362634.894634] [<ffffffff810a4379>] handle_irq_event+0x49/0x70 [362634.894639] [<ffffffff810a7bef>] handle_edge_irq+0x7f/0x150 [362634.894643] [<ffffffff81004a89>] handle_irq+0x59/0x150 [362634.894648] [<ffffffff81052b06>] ? irq_enter+0x16/0x90 [362634.894652] [<ffffffff8100403b>] do_IRQ+0x5b/0xe0 [362634.894657] [<ffffffff81589def>] common_interrupt+0x6f/0x6f [362634.894659] <EOI> [<ffffffff812fad67>] ? do_raw_spin_lock+0x47/0x160 [362634.894668] [<ffffffff81588f44>] _raw_spin_lock+0x44/0x50 [362634.894673] [<ffffffff812f3001>] ? lockref_put_or_lock+0x11/0x40 [362634.894677] [<ffffffff812f3001>] lockref_put_or_lock+0x11/0x40 [362634.894682] [<ffffffff811a97df>] dput+0x1f/0x120 [362634.894686] [<ffffffff811a0275>] link_path_walk+0x625/0x980 [362634.894690] [<ffffffff811a09ef>] path_lookupat+0x41f/0x8b0 [362634.894695] [<ffffffff8119d641>] ? getname_flags+0x51/0x1b0 [362634.894699] [<ffffffff811a0eb3>] filename_lookup+0x33/0xd0 [362634.894703] [<ffffffff811a202b>] user_path_at_empty+0x7b/0xb0 [362634.894708] [<ffffffff8119d7d4>] ? putname+0x24/0x40 [362634.894711] [<ffffffff811a2036>] ? user_path_at_empty+0x86/0xb0 [362634.894716] [<ffffffff810f863f>] ? __call_rcu+0xaf/0x140 [362634.894720] [<ffffffff811a206c>] user_path_at+0xc/0x10 [362634.894724] [<ffffffff81196c01>] vfs_fstatat+0x51/0xb0 [362634.894729] [<ffffffff81079681>] ? prepare_creds+0x21/0xf0 [362634.894733] [<ffffffff81196d86>] vfs_stat+0x16/0x20 [362634.894737] [<ffffffff81196daf>] SyS_newstat+0x1f/0x50 [362634.894741] [<ffffffff810bb2bd>] ? trace_hardirqs_on_caller+0x13d/0x1e0 [362634.894746] [<ffffffff812f2b6e>] ? trace_hardirqs_on_thunk+0x3a/0x3f [362634.894751] [<ffffffff81591fa2>] system_call_fastpath+0x16/0x1b [362634.894754] ---[ end trace f54ed427593b8ca1 ]--- [362635.236558] ------------[ cut here ]------------ [362635.236588] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/i915/i915_irq.c:1001 i965_irq_handler+0x492/0x680 [i915]() [362635.236591] Received HPD interrupt although disabled [362635.236592] Modules linked in: sr_mod cdrom dm_mod fuse af_packet tun iptable_mangle xt_DSCP nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack iptable_filter ip_tables x_tables nls_cp1250 nls_cp437 vfat fat rfcomm bnep cpufreq_conservative cpufreq_userspace cpufreq_powersave iTCO_wdt iTCO_vendor_support snd_hda_codec_conexant kvm_intel kvm usb_storage snd_hda_intel iwldvm snd_hda_codec mac80211 snd_hwdep iwlwifi sg snd_pcm cfg80211 snd_seq btusb bluetooth snd_timer pcspkr snd_seq_device thinkpad_acpi lpc_ich rfkill mfd_core i2c_i801 tpm_tis ac tpm battery snd tpm_bios e1000e soundcore snd_page_alloc wmi acpi_cpufreq ehci_pci ptp pps_core autofs4 uhci_hcd ehci_hcd usbcore usb_common i915 drm_kms_helper drm i2c_algo_bit video button edd fan processor ata_generic thermal thermal_sys [362635.236665] CPU: 1 PID: 1 Comm: systemd Tainted: G W 3.12.0-rc4-00006-g162bdaf-dirty #1 [362635.236667] Hardware name: LENOVO 7470BN2/7470BN2, BIOS 6DET38WW (2.02 ) 12/19/2008 [362635.236670] 00000000000003e9 ffff88007c283d18 ffffffff81583863 ffff88007c283d58 [362635.236675] ffffffff8104d297 ffff88007c283d98 0000000000000010 0000000000000002 [362635.236680] ffff880037180000 0000000000000005 ffff880037180000 ffff88007c283db8 [362635.236684] Call Trace: [362635.236687] <IRQ> [<ffffffff81583863>] dump_stack+0x7a/0x97 [362635.236698] [<ffffffff8104d297>] warn_slowpath_common+0x87/0xb0 [362635.236702] [<ffffffff8104d361>] warn_slowpath_fmt+0x41/0x50 [362635.236718] [<ffffffffa00c7be2>] i965_irq_handler+0x492/0x680 [i915] [362635.236723] [<ffffffff810bb1f2>] ? trace_hardirqs_on_caller+0x72/0x1e0 [362635.236729] [<ffffffff810a41bc>] handle_irq_event_percpu+0xac/0x220 [362635.236733] [<ffffffff810a4379>] handle_irq_event+0x49/0x70 [362635.236737] [<ffffffff810a7bef>] handle_edge_irq+0x7f/0x150 [362635.236741] [<ffffffff81004a89>] handle_irq+0x59/0x150 [362635.236745] [<ffffffff81052b06>] ? irq_enter+0x16/0x90 [362635.236749] [<ffffffff8100403b>] do_IRQ+0x5b/0xe0 [362635.236753] [<ffffffff81589def>] common_interrupt+0x6f/0x6f [362635.236755] <EOI> [<ffffffff81591fc7>] ? sysret_check+0x1b/0x56 [362635.236761] ---[ end trace f54ed427593b8ca2 ]--- [362635.296933] ------------[ cut here ]------------ [362635.296956] WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/i915/i915_irq.c:1001 i965_irq_handler+0x492/0x680 [i915]() [362635.296958] Received HPD interrupt although disabled [362635.296960] Modules linked in: sr_mod cdrom dm_mod fuse af_packet tun iptable_mangle xt_DSCP nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack iptable_filter ip_tables x_tables nls_cp1250 nls_cp437 vfat fat rfcomm bnep cpufreq_conservative cpufreq_userspace cpufreq_powersave iTCO_wdt iTCO_vendor_support snd_hda_codec_conexant kvm_intel kvm usb_storage snd_hda_intel iwldvm snd_hda_codec mac80211 snd_hwdep iwlwifi sg snd_pcm cfg80211 snd_seq btusb bluetooth snd_timer pcspkr snd_seq_device thinkpad_acpi lpc_ich rfkill mfd_core i2c_i801 tpm_tis ac tpm battery snd tpm_bios e1000e soundcore snd_page_alloc wmi acpi_cpufreq ehci_pci ptp pps_core autofs4 uhci_hcd ehci_hcd usbcore usb_common i915 drm_kms_helper drm i2c_algo_bit video button edd fan processor ata_generic thermal thermal_sys [362635.297030] CPU: 1 PID: 1 Comm: systemd Tainted: G W 3.12.0-rc4-00006-g162bdaf-dirty #1 [362635.297033] Hardware name: LENOVO 7470BN2/7470BN2, BIOS 6DET38WW (2.02 ) 12/19/2008 [362635.297035] 00000000000003e9 ffff88007c283d18 ffffffff81583863 ffff88007c283d58 [362635.297040] ffffffff8104d297 ffff88007c283d98 0000000000000010 0000000000000002 [362635.297044] ffff880037180000 0000000000000005 ffff880037180000 ffff88007c283db8 [362635.297049] Call Trace: [362635.297051] <IRQ> [<ffffffff81583863>] dump_stack+0x7a/0x97 [362635.297060] [<ffffffff8104d297>] warn_slowpath_common+0x87/0xb0 [362635.297064] [<ffffffff8104d361>] warn_slowpath_fmt+0x41/0x50 [362635.297080] [<ffffffffa00c7be2>] i965_irq_handler+0x492/0x680 [i915] [362635.297085] [<ffffffff810a41bc>] handle_irq_event_percpu+0xac/0x220 [362635.297089] [<ffffffff810a4379>] handle_irq_event+0x49/0x70 [362635.297093] [<ffffffff810a7bef>] handle_edge_irq+0x7f/0x150 [362635.297097] [<ffffffff81004a89>] handle_irq+0x59/0x150 [362635.297101] [<ffffffff81052b06>] ? irq_enter+0x16/0x90 [362635.297104] [<ffffffff8100403b>] do_IRQ+0x5b/0xe0 [362635.297109] [<ffffffff81589def>] common_interrupt+0x6f/0x6f [362635.297110] <EOI> [<ffffffff810bc78a>] ? lock_acquire+0x4a/0x130 [362635.297118] [<ffffffff81588f3c>] _raw_spin_lock+0x3c/0x50 [362635.297123] [<ffffffff812f3001>] ? lockref_put_or_lock+0x11/0x40 [362635.297126] [<ffffffff812f3001>] lockref_put_or_lock+0x11/0x40 [362635.297131] [<ffffffff811a97df>] dput+0x1f/0x120 [362635.297134] [<ffffffff811a0b65>] path_lookupat+0x595/0x8b0 [362635.297139] [<ffffffff8119d641>] ? getname_flags+0x51/0x1b0 [362635.297143] [<ffffffff811a0eb3>] filename_lookup+0x33/0xd0 [362635.297146] [<ffffffff811a202b>] user_path_at_empty+0x7b/0xb0 [362635.297150] [<ffffffff810bb36d>] ? trace_hardirqs_on+0xd/0x10 [362635.297155] [<ffffffff811b23cc>] ? mntput_no_expire+0x4c/0x180 [362635.297158] [<ffffffff811a206c>] user_path_at+0xc/0x10 [362635.297162] [<ffffffff81196c01>] vfs_fstatat+0x51/0xb0 [362635.297165] [<ffffffff81196cc9>] vfs_lstat+0x19/0x20 [362635.297169] [<ffffffff81196cef>] SyS_newlstat+0x1f/0x50 [362635.297172] [<ffffffff810bb2bd>] ? trace_hardirqs_on_caller+0x13d/0x1e0 [362635.297176] [<ffffffff812f2b6e>] ? trace_hardirqs_on_thunk+0x3a/0x3f [362635.297181] [<ffffffff81591fa2>] system_call_fastpath+0x16/0x1b [362635.297183] ---[ end trace f54ed427593b8ca3 ]--- [362636.061672] ------------[ cut here ]------------ [362636.061699] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/i915/i915_irq.c:1001 i965_irq_handler+0x492/0x680 [i915]() [362636.061702] Received HPD interrupt although disabled [362636.061704] Modules linked in: sr_mod cdrom dm_mod fuse af_packet tun iptable_mangle xt_DSCP nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack iptable_filter ip_tables x_tables nls_cp1250 nls_cp437 vfat fat rfcomm bnep cpufreq_conservative cpufreq_userspace cpufreq_powersave iTCO_wdt iTCO_vendor_support snd_hda_codec_conexant kvm_intel kvm usb_storage snd_hda_intel iwldvm snd_hda_codec mac80211 snd_hwdep iwlwifi sg snd_pcm cfg80211 snd_seq btusb bluetooth snd_timer pcspkr snd_seq_device thinkpad_acpi lpc_ich rfkill mfd_core i2c_i801 tpm_tis ac tpm battery snd tpm_bios e1000e soundcore snd_page_alloc wmi acpi_cpufreq ehci_pci ptp pps_core autofs4 uhci_hcd ehci_hcd usbcore usb_common i915 drm_kms_helper drm i2c_algo_bit video button edd fan processor ata_generic thermal thermal_sys [362636.061787] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 3.12.0-rc4-00006-g162bdaf-dirty #1 [362636.061789] Hardware name: LENOVO 7470BN2/7470BN2, BIOS 6DET38WW (2.02 ) 12/19/2008 [362636.061792] 00000000000003e9 ffff88007c283d18 ffffffff81583863 ffff88007c283d58 [362636.061798] ffffffff8104d297 ffff88007c283d98 0000000000000010 0000000000000002 [362636.061803] ffff880037180000 0000000000000005 ffff880037180000 ffff88007c283db8 [362636.061809] Call Trace: [362636.061811] <IRQ> [<ffffffff81583863>] dump_stack+0x7a/0x97 [362636.061822] [<ffffffff8104d297>] warn_slowpath_common+0x87/0xb0 [362636.061826] [<ffffffff8104d361>] warn_slowpath_fmt+0x41/0x50 [362636.061845] [<ffffffffa00c7be2>] i965_irq_handler+0x492/0x680 [i915] [362636.061852] [<ffffffff810a41bc>] handle_irq_event_percpu+0xac/0x220 [362636.061856] [<ffffffff810a4379>] handle_irq_event+0x49/0x70 [362636.061860] [<ffffffff810a7bef>] handle_edge_irq+0x7f/0x150 [362636.061865] [<ffffffff81004a89>] handle_irq+0x59/0x150 [362636.061870] [<ffffffff8158dbb1>] ? atomic_notifier_call_chain+0x11/0x20 [362636.061873] [<ffffffff8100403b>] do_IRQ+0x5b/0xe0 [362636.061878] [<ffffffff81589def>] common_interrupt+0x6f/0x6f [362636.061880] <EOI> [<ffffffff8146d3e4>] ? cpuidle_enter_state+0x54/0xd0 [362636.061889] [<ffffffff8146d3e0>] ? cpuidle_enter_state+0x50/0xd0 [362636.061894] [<ffffffff8146d7ea>] cpuidle_idle_call+0x10a/0x160 [362636.061899] [<ffffffff8100b7b9>] arch_cpu_idle+0x9/0x30 [362636.061903] [<ffffffff810a368b>] cpu_idle_loop+0x8b/0x270 [362636.061908] [<ffffffff810a388e>] cpu_startup_entry+0x1e/0x20 [362636.061913] [<ffffffff8103115e>] start_secondary+0x8e/0x90 [362636.061916] ---[ end trace f54ed427593b8ca4 ]--- [362636.256047] [drm] HPD interrupt storm detected on connector HDMI-A-1: switching from hotplug detection to polling [362636.899720] [drm] HPD interrupt storm detected on connector DP-3: switching from hotplug detection to polling -- Jiri Kosina SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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