Created attachment 114737 [details] kernel 4.0.0-0.rc5.git4.1 log [ 6497.180195] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for plane state ffff8802ecd7f600 [ 6497.209798] [drm:drm_atomic_set_fb_for_plane] Set [FB:71] for plane state ffff88003f15c900 [ 6497.226385] [drm:drm_atomic_set_fb_for_plane] Set [FB:72] for plane state ffff88003f15c900 [ 6497.295220] [drm:drm_atomic_set_fb_for_plane] Set [FB:70] for plane state ffff88003f15c900 [ 6497.344020] [drm:drm_atomic_set_fb_for_plane] Set [FB:71] for plane state ffff88003f15c900 [ 6497.359858] [drm:drm_atomic_set_fb_for_plane] Set [FB:72] for plane state ffff88003f15c900 [ 6497.534043] [drm:drm_atomic_set_fb_for_plane] Set [FB:70] for plane state ffff88003f15c900 [ 6497.557083] [drm:drm_atomic_set_fb_for_plane] Set [FB:71] for plane state ffff88003f15c900 [ 6497.576506] [drm:i915_gem_open] [ 6497.596697] [drm:drm_atomic_set_fb_for_plane] Set [FB:72] for plane state ffff88003f15c900 [ 6497.609078] [drm:i915_gem_context_create_ioctl] HW context 1 created [ 6497.611027] [drm:i915_gem_context_destroy_ioctl] HW context 1 destroyed [ 6497.612259] [drm:drm_atomic_set_fb_for_plane] Set [FB:70] for plane state ffff88003f15c900 [ 6497.626694] [drm:drm_atomic_set_fb_for_plane] Set [FB:71] for plane state ffff88003f15c900 [ 6497.710285] [drm:drm_atomic_set_fb_for_plane] Set [FB:72] for plane state ffff88003f15c900 [ 6497.796811] [drm:drm_atomic_set_fb_for_plane] Set [FB:70] for plane state ffff88003f15c900 [ 6497.853971] ------------[ cut here ]------------ [ 6497.853979] WARNING: CPU: 1 PID: 10867 at lib/dma-debug.c:601 debug_dma_assert_idle+0x1a4/0x220() [ 6497.853982] i915 0000:00:02.0: DMA-API: cpu touching an active dma mapped cacheline [cln=0x000000001e993000] [ 6497.853983] Modules linked in: nls_utf8 isofs rfcomm fuse xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ebtable_nat ebtable_broute bridge ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw bnep hid_logitech_hidpp btusb bluetooth hid_logitech_dj rfkill iTCO_wdt iTCO_vendor_support ppdev btrfs intel_rapl iosf_mbi xor x86_pkg_temp_thermal coretemp vfat fat kvm_intel kvm snd_hda_codec_hdmi uas snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel usb_storage crct10dif_pclmul [ 6497.854036] snd_hda_controller raid6_pq crc32_pclmul crc32c_intel snd_hda_codec ghash_clmulni_intel snd_hwdep snd_seq snd_seq_device snd_pcm serio_raw snd_timer snd mei_me lpc_ich shpchp mei i2c_i801 mfd_core soundcore parport_pc tpm_infineon parport tpm_tis tpm binfmt_misc nfsd auth_rpcgss nfs_acl lockd grace sunrpc i915 8021q garp i2c_algo_bit stp drm_kms_helper llc mrp drm r8169 mii video [ 6497.854071] CPU: 1 PID: 10867 Comm: Chrome_FileThre Not tainted 4.0.0-0.rc5.git4.1.fc22.x86_64+debug #1 [ 6497.854073] Hardware name: Gigabyte Technology Co., Ltd. Z87M-D3H/Z87M-D3H, BIOS F11 08/12/2014 [ 6497.854074] 0000000000000000 0000000043d8c22d ffff880791c0bc68 ffffffff8187de92 [ 6497.854078] 0000000000000000 ffff880791c0bcc0 ffff880791c0bca8 ffffffff810ab45a [ 6497.854081] ffffffff8112f59f ffff8807fa9fe140 ffff8807f65e8c00 000039e98a08b108 [ 6497.854084] Call Trace: [ 6497.854089] [<ffffffff8187de92>] dump_stack+0x4c/0x65 [ 6497.854093] [<ffffffff810ab45a>] warn_slowpath_common+0x8a/0xc0 [ 6497.854097] [<ffffffff8112f59f>] ? rcu_irq_exit+0x7f/0xd0 [ 6497.854099] [<ffffffff810ab4e5>] warn_slowpath_fmt+0x55/0x70 [ 6497.854107] [<ffffffff81459de4>] debug_dma_assert_idle+0x1a4/0x220 [ 6497.854111] [<ffffffff8121c056>] do_wp_page+0x1a6/0x9f0 [ 6497.854114] [<ffffffff8121d1c9>] ? handle_mm_fault+0x349/0x17f0 [ 6497.854117] [<ffffffff8121dcef>] handle_mm_fault+0xe6f/0x17f0 [ 6497.854121] [<ffffffff810702a1>] __do_page_fault+0x1d1/0x4b0 [ 6497.854124] [<ffffffff818801ed>] ? __schedule+0x37d/0xa60 [ 6497.854126] [<ffffffff810705b1>] do_page_fault+0x31/0x70 [ 6497.854129] [<ffffffff81889a68>] page_fault+0x28/0x30 [ 6497.854131] ---[ end trace a25c5e7fa3d152a0 ]--- [ 6497.854132] Mapped at: [ 6497.854134] [<ffffffff81458056>] debug_dma_map_sg+0x176/0x1c0 [ 6497.854136] [<ffffffffa011f6fb>] i915_gem_gtt_prepare_object+0xdb/0x110 [i915] [ 6497.854153] [<ffffffffa012910b>] i915_gem_object_pin_view+0x71b/0x980 [i915] [ 6497.854167] [<ffffffffa0118def>] i915_gem_execbuffer_reserve_vma.isra.17+0x6f/0x100 [i915] [ 6497.854177] [<ffffffffa01191a0>] i915_gem_execbuffer_reserve+0x320/0x390 [i915] [ 6497.882606] [drm:drm_atomic_set_fb_for_plane] Set [FB:48] for plane state ffff88024ee51240 [ 6497.910622] [drm:drm_atomic_set_fb_for_plane] Set [FB:71] for plane state ffff88003f15c900 [ 6497.942225] [drm:drm_atomic_set_fb_for_plane] Set [FB:72] for plane state ffff88003f15c900 [ 6497.968326] [drm:drm_atomic_set_fb_for_plane] Set [FB:70] for plane state ffff88003f15c900 [ 6497.976832] [drm:drm_atomic_set_fb_for_plane] Set [FB:71] for plane state ffff88003f15c900 [ 6497.993640] [drm:drm_atomic_set_fb_for_plane] Set [FB:72] for plane state ffff88003f15c900 [ 6498.010707] [drm:drm_atomic_set_fb_for_plane] Set [FB:70] for plane state ffff88003f15c900 [ 6498.026955] [drm:drm_atomic_set_fb_for_plane] Set [FB:71] for plane state ffff88003f15c900 [ 6498.043355] [drm:drm_atomic_set_fb_for_plane] Set [FB:72] for plane state ffff88003f15c900 [ 6498.060068] [drm:drm_atomic_set_fb_for_plane] Set [FB:70] for plane state ffff88003f15c900 [ 6498.076920] [drm:drm_atomic_set_fb_for_plane] Set [FB:71] for plane state ffff88003f15c900 [ 6498.093622] [drm:drm_atomic_set_fb_for_plane] Set [FB:72] for plane state ffff88003f15c900 [ 6498.110386] [drm:drm_atomic_set_fb_for_plane] Set [FB:70] for plane state ffff88003f15c900 [ 6498.127549] [drm:drm_atomic_set_fb_for_plane] Set [FB:71] for plane state ffff88003f15c900
The debug dma code does not understand the cache coherency here.
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