<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - [BYT]igt/kms_flip/single-buffer-flip-vs-dpms-off-vs-modeset aborted" href="https://bugs.freedesktop.org/show_bug.cgi?id=73037#c1">Comment # 1</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - [BYT]igt/kms_flip/single-buffer-flip-vs-dpms-off-vs-modeset aborted" href="https://bugs.freedesktop.org/show_bug.cgi?id=73037">bug 73037</a> from <a class="email" href="mailto:huax.lu@intel.com" title="lu hua <huax.lu@intel.com>"> lu hua</a> <pre>Created <a href="attachment.cgi?id=91317" name="attach_91317" title="dmesg">attachment 91317</a> <a href="attachment.cgi?id=91317&action=edit" title="dmesg">[details]</a> dmesg Sorry, It fails with "*ERROR* failed to train DP, aborting" not "core dumped". It randomly causes *ERROR* failed to train DP, aborting. It happens 1 in 15 runs. output: IGT-Version: 1.5-g72fe2b6 (x86_64) (Linux: 3.13.0-rc4_drm-intel-nightly_5f7867_20131230+ x86_64) Using monotonic timestamps Beginning wf_vblank-vs-dpms-interruptible on crtc 3, connector 20 1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780 ................... wf_vblank-vs-dpms-interruptible on crtc 3, connector 20: PASSED Beginning wf_vblank-vs-dpms-interruptible on crtc 6, connector 20 1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780 ..... wf_vblank-vs-dpms-interruptible on crtc 6, connector 20: PASSED Subtest wf_vblank-vs-dpms-interruptible: SUCCESS Call trace [ 324.889970] [drm:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting [ 324.889976] [drm:intel_dp_link_down], [ 324.941966] [drm:g4x_wait_for_vblank], vblank wait timed out [ 324.993102] [drm:valleyview_irq_handler], hotplug event received, stat 0x10000020 [ 326.005962] ------------[ cut here ]------------ [ 326.005992] WARNING: CPU: 0 PID: 3924 at drivers/gpu/drm/i915/intel_display.c:1535 vlv_pre_enable_dp+0x109/0x118 [i915]() [ 326.005996] timed out waiting for port C ready: 0x000000ff [ 326.005998] Modules linked in: ip6table_filter ip6_tables ipv6 iptable_filter ip_tables ebtable_nat ebtables x_tables dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek pcspkr s nd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_page_alloc snd_timer snd soundcore battery ac acpi_cpufreq i915 video button drm_kms_helper drm [ 326.006026] CPU: 0 PID: 3924 Comm: kms_flip Tainted: G W 3.13.0-rc4_drm-intel-nightly_5f7867_20131230+ #42 [ 326.006029] 0000000000000000 0000000000000009 ffffffff81711fd2 ffff8800025e7c08 [ 326.006034] ffffffff8103312a 0000000000000286 ffffffffa009977b dead000000200200 [ 326.006039] ffff880002a0c000 0000000000000001 ffff880002949800 0000000000000200 [ 326.006044] Call Trace: [ 326.006061] [<ffffffff81711fd2>] ? dump_stack+0x41/0x51 [ 326.006069] [<ffffffff8103312a>] ? warn_slowpath_common+0x73/0x8b [ 326.006091] [<ffffffffa009977b>] ? vlv_pre_enable_dp+0x109/0x118 [i915] [ 326.006096] [<ffffffff810331da>] ? warn_slowpath_fmt+0x45/0x4a [ 326.006114] [<ffffffffa00821c3>] ? vlv_wait_port_ready+0xcb/0x104 [i915] [ 326.006132] [<ffffffffa009977b>] ? vlv_pre_enable_dp+0x109/0x118 [i915] [ 326.006150] [<ffffffffa00861bb>] ? valleyview_crtc_enable+0x298/0x375 [i915] [ 326.006167] [<ffffffffa00878dd>] ? intel_crtc_update_dpms+0x4f/0x66 [i915] [ 326.006193] [<ffffffffa008b3c1>] ? intel_connector_dpms+0x3f/0x4a [i915] [ 326.006205] [<ffffffffa000fbcb>] ? drm_mode_obj_set_property_ioctl+0x15c/0x1e6 [drm] [ 326.006216] [<ffffffffa000fc81>] ? drm_mode_connector_property_set_ioctl+0x2c/0x31 [drm] [ 326.006226] [<ffffffffa0002f37>] ? drm_ioctl+0x263/0x385 [drm] [ 326.006236] [<ffffffffa000fc55>] ? drm_mode_obj_set_property_ioctl+0x1e6/0x1e6 [drm] [ 326.006243] [<ffffffff8108ec07>] ? __audit_syscall_exit+0x209/0x225 [ 326.006248] [<ffffffff810360fd>] ? timespec_add_safe+0x1e/0x4d [ 326.006254] [<ffffffff810e90e8>] ? do_vfs_ioctl+0x3f1/0x43a [ 326.006258] [<ffffffff810e917f>] ? SyS_ioctl+0x4e/0x7b [ 326.006264] [<ffffffff8171c5e2>] ? system_call_fastpath+0x16/0x1b [ 326.006267] ---[ end trace e75f891d266e7a18 ]--- Reproduce steps: ------------------------- 1. ./kms_flip --run-subtest wf_vblank-vs-dpms-interruptible</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>