Control variate:
still getting this on the latest 4.2 mainline kernel
[ 24.358337] ------------[ cut here ]------------ [ 24.358356] WARNING: CPU: 2 PID: 1026 at /home/kernel/COD/linux/drivers/gpu/drm/i915/intel_display.c:1362 assert_plane.constprop.94+0x73/0xa0 [i915]() [ 24.358356] plane A assertion failure (expected on, current off) [ 24.358375] Modules linked in: xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp bridge stp llc ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter ip_tables x_tables cmac rfcomm bnep nls_iso8859_1 uas usb_storage arc4 intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel iwlmvm uvcvideo aesni_intel aes_x86_64 lrw mac80211 gf128mul glue_helper ablk_helper cryptd snd_usb_audio videobuf2_vmalloc snd_usbmidi_lib serio_raw snd_seq_midi snd_seq_midi_event videobuf2_memops videobuf2_core v4l2_common snd_rawmidi snd_hda_codec_hdmi iwlwifi snd_hda_codec_realtek videodev snd_hda_codec_generic [ 24.358395] btusb snd_seq btrtl media joydev btbcm btintel cfg80211 input_leds bluetooth mei_me snd_hda_intel mei snd_hda_codec lpc_ich snd_soc_rt5640 snd_hda_core snd_soc_rl6231 shpchp snd_hwdep snd_soc_core snd_compress ac97_bus nuvoton_cir snd_pcm_dmaengine rc_core snd_pcm snd_soc_sst_acpi snd_seq_device snd_timer i2c_hid acpi_pad dw_dmac snd dw_dmac_core 8250_dw i2c_designware_platform i2c_designware_core spi_pxa2xx_platform soundcore mac_hid acpi_als kfifo_buf industrialio parport_pc ppdev sunrpc lp parport autofs4 raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid1 raid0 multipath linear hid_generic usbhid hid i915 i2c_algo_bit drm_kms_helper psmouse e1000e drm ahci ptp libahci pps_core sdhci_acpi video sdhci [ 24.358397] CPU: 2 PID: 1026 Comm: Xorg Not tainted 4.2.0-040200rc8-generic #201508240030 [ 24.358397] Hardware name: \xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff \xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff/NUC5i7RYB, BIOS RYBDWi35.86A.0246.2015.0309.1355 03/09/2015 [ 24.358399] ffffffffc025bc70 ffff8804084bf7b8 ffffffff817a1aa3 0000000000000001 [ 24.358400] ffff8804084bf808 ffff8804084bf7f8 ffffffff8107719a ffff880035df0000 [ 24.358401] 0000000000000000 ffff880035df0000 ffff8804072e3000 ffff8804072e3060 [ 24.358401] Call Trace: [ 24.358404] [<ffffffff817a1aa3>] dump_stack+0x45/0x57 [ 24.358406] [<ffffffff8107719a>] warn_slowpath_common+0x8a/0xc0 [ 24.358408] [<ffffffff81077216>] warn_slowpath_fmt+0x46/0x50 [ 24.358418] [<ffffffffc01f29e3>] assert_plane.constprop.94+0x73/0xa0 [i915] [ 24.358427] [<ffffffffc01fc9e1>] hsw_disable_ips+0x41/0x180 [i915] [ 24.358436] [<ffffffffc01fcb7d>] intel_pre_disable_primary+0x5d/0x90 [i915] [ 24.358444] [<ffffffffc01fcbf8>] intel_crtc_disable_planes+0x48/0x110 [i915] [ 24.358452] [<ffffffffc01fd541>] __intel_set_mode+0x251/0xb10 [i915] [ 24.358460] [<ffffffffc01ff0b2>] ? intel_modeset_compute_config+0x362/0xb60 [i915] [ 24.358468] [<ffffffffc0204886>] intel_crtc_set_config+0x366/0x5a0 [i915] [ 24.358477] [<ffffffffc00803e8>] drm_mode_set_config_internal+0x68/0x100 [drm] [ 24.358482] [<ffffffffc0168e42>] restore_fbdev_mode+0xc2/0xf0 [drm_kms_helper] [ 24.358484] [<ffffffffc016ac19>] drm_fb_helper_restore_fbdev_mode_unlocked+0x29/0x70 [drm_kms_helper] [ 24.358486] [<ffffffffc016ac82>] drm_fb_helper_set_par+0x22/0x40 [drm_kms_helper] [ 24.358495] [<ffffffffc0211a3a>] intel_fbdev_set_par+0x1a/0x60 [i915] [ 24.358497] [<ffffffff812bad66>] ? jbd2_journal_dirty_metadata+0xb6/0x250 [ 24.358499] [<ffffffff81413a41>] fb_set_var+0x191/0x400 [ 24.358501] [<ffffffff8129fa01>] ? __ext4_handle_dirty_metadata+0x81/0x210 [ 24.358503] [<ffffffff8140ad9c>] fbcon_blank+0x1bc/0x2b0 [ 24.358505] [<ffffffff8149a3a8>] do_unblank_screen+0xb8/0x1c0 [ 24.358507] [<ffffffff81491883>] vt_ioctl+0x1063/0x10e0 [ 24.358508] [<ffffffff8179e708>] ? __slab_free+0x104/0x25c [ 24.358510] [<ffffffff81484777>] tty_ioctl+0x1f7/0xbe0 [ 24.358512] [<ffffffff81198671>] ? kzfree+0x31/0x40 [ 24.358513] [<ffffffff811cbc58>] ? kfree+0xf8/0x130 [ 24.358515] [<ffffffff811fc62d>] do_vfs_ioctl+0x2cd/0x4b0 [ 24.358517] [<ffffffff81208df4>] ? mntput+0x24/0x40 [ 24.358518] [<ffffffff811eb4d0>] ? __fput+0x190/0x210 [ 24.358519] [<ffffffff811fc889>] SyS_ioctl+0x79/0x90 [ 24.358520] [<ffffffff817a8db2>] entry_SYSCALL_64_fastpath+0x16/0x75 [ 24.358521] ---[ end trace 537139706fa96fdd ]---
Control variate:
still getting this on the latest 4.2 mainline kernel
[ 24.358337] ------------[ cut here ]------------ COD/linux/ drivers/ gpu/drm/ i915/intel_ display. c:1362 assert_ plane.constprop .94+0x73/ 0xa0 [i915]() masquerade_ ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp bridge stp llc ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter ip_tables x_tables cmac rfcomm bnep nls_iso8859_1 uas usb_storage arc4 intel_rapl iosf_mbi x86_pkg_ temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel iwlmvm uvcvideo aesni_intel aes_x86_64 lrw mac80211 gf128mul glue_helper ablk_helper cryptd snd_usb_audio videobuf2_vmalloc snd_usbmidi_lib serio_raw snd_seq_midi snd_seq_midi_event videobuf2_memops videobuf2_core v4l2_common snd_rawmidi snd_hda_codec_hdmi iwlwifi snd_hda_ codec_realtek videodev snd_hda_ codec_generic platform i2c_designware_core spi_pxa2xx_platform soundcore mac_hid acpi_als kfifo_buf industrialio parport_pc ppdev sunrpc lp parport autofs4 raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid1 raid0 multipath linear hid_generic usbhid hid i915 i2c_algo_bit drm_kms_helper psmouse e1000e drm ahci ptp libahci pps_core sdhci_acpi video sdhci -generic #201508240030 xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff \xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff\ xffffffff/ NUC5i7RYB, BIOS RYBDWi35. 86A.0246. 2015.0309. 1355 03/09/2015 aa3>] dump_stack+ 0x45/0x57 19a>] warn_slowpath_ common+ 0x8a/0xc0 216>] warn_slowpath_ fmt+0x46/ 0x50 9e3>] assert_ plane.constprop .94+0x73/ 0xa0 [i915] 9e1>] hsw_disable_ ips+0x41/ 0x180 [i915] b7d>] intel_pre_ disable_ primary+ 0x5d/0x90 [i915] bf8>] intel_crtc_ disable_ planes+ 0x48/0x110 [i915] 541>] __intel_ set_mode+ 0x251/0xb10 [i915] 0b2>] ? intel_modeset_ compute_ config+ 0x362/0xb60 [i915] 886>] intel_crtc_ set_config+ 0x366/0x5a0 [i915] 3e8>] drm_mode_ set_config_ internal+ 0x68/0x100 [drm] e42>] restore_ fbdev_mode+ 0xc2/0xf0 [drm_kms_helper] c19>] drm_fb_ helper_ restore_ fbdev_mode_ unlocked+ 0x29/0x70 [drm_kms_helper] c82>] drm_fb_ helper_ set_par+ 0x22/0x40 [drm_kms_helper] a3a>] intel_fbdev_ set_par+ 0x1a/0x60 [i915] d66>] ? jbd2_journal_ dirty_metadata+ 0xb6/0x250 a41>] fb_set_ var+0x191/ 0x400 a01>] ? __ext4_ handle_ dirty_metadata+ 0x81/0x210 d9c>] fbcon_blank+ 0x1bc/0x2b0 3a8>] do_unblank_ screen+ 0xb8/0x1c0 883>] vt_ioctl+ 0x1063/ 0x10e0 708>] ? __slab_ free+0x104/ 0x25c 777>] tty_ioctl+ 0x1f7/0xbe0 671>] ? kzfree+0x31/0x40 c58>] ? kfree+0xf8/0x130 62d>] do_vfs_ ioctl+0x2cd/ 0x4b0 df4>] ? mntput+0x24/0x40 4d0>] ? __fput+0x190/0x210 889>] SyS_ioctl+0x79/0x90 db2>] entry_SYSCALL_ 64_fastpath+ 0x16/0x75
[ 24.358356] WARNING: CPU: 2 PID: 1026 at /home/kernel/
[ 24.358356] plane A assertion failure (expected on, current off)
[ 24.358375] Modules linked in: xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_
[ 24.358395] btusb snd_seq btrtl media joydev btbcm btintel cfg80211 input_leds bluetooth mei_me snd_hda_intel mei snd_hda_codec lpc_ich snd_soc_rt5640 snd_hda_core snd_soc_rl6231 shpchp snd_hwdep snd_soc_core snd_compress ac97_bus nuvoton_cir snd_pcm_dmaengine rc_core snd_pcm snd_soc_sst_acpi snd_seq_device snd_timer i2c_hid acpi_pad dw_dmac snd dw_dmac_core 8250_dw i2c_designware_
[ 24.358397] CPU: 2 PID: 1026 Comm: Xorg Not tainted 4.2.0-040200rc8
[ 24.358397] Hardware name: \xffffffff\
[ 24.358399] ffffffffc025bc70 ffff8804084bf7b8 ffffffff817a1aa3 0000000000000001
[ 24.358400] ffff8804084bf808 ffff8804084bf7f8 ffffffff8107719a ffff880035df0000
[ 24.358401] 0000000000000000 ffff880035df0000 ffff8804072e3000 ffff8804072e3060
[ 24.358401] Call Trace:
[ 24.358404] [<ffffffff817a1
[ 24.358406] [<ffffffff81077
[ 24.358408] [<ffffffff81077
[ 24.358418] [<ffffffffc01f2
[ 24.358427] [<ffffffffc01fc
[ 24.358436] [<ffffffffc01fc
[ 24.358444] [<ffffffffc01fc
[ 24.358452] [<ffffffffc01fd
[ 24.358460] [<ffffffffc01ff
[ 24.358468] [<ffffffffc0204
[ 24.358477] [<ffffffffc0080
[ 24.358482] [<ffffffffc0168
[ 24.358484] [<ffffffffc016a
[ 24.358486] [<ffffffffc016a
[ 24.358495] [<ffffffffc0211
[ 24.358497] [<ffffffff812ba
[ 24.358499] [<ffffffff81413
[ 24.358501] [<ffffffff8129f
[ 24.358503] [<ffffffff8140a
[ 24.358505] [<ffffffff8149a
[ 24.358507] [<ffffffff81491
[ 24.358508] [<ffffffff8179e
[ 24.358510] [<ffffffff81484
[ 24.358512] [<ffffffff81198
[ 24.358513] [<ffffffff811cb
[ 24.358515] [<ffffffff811fc
[ 24.358517] [<ffffffff81208
[ 24.358518] [<ffffffff811eb
[ 24.358519] [<ffffffff811fc
[ 24.358520] [<ffffffff817a8
[ 24.358521] ---[ end trace 537139706fa96fdd ]---