Apr 4 11:26:06 athena kernel: [ 42.317754] Call Trace:
Apr 4 11:26:06 athena kernel: [ 42.317762] [<ffffffff817c15b5>] dump_stack+0x45/0x57
Apr 4 11:26:06 athena kernel: [ 42.317765] [<ffffffff8107595a>] warn_slowpath_common+0x8a/0xc0
Apr 4 11:26:06 athena kernel: [ 42.317768] [<ffffffff810759d6>] warn_slowpath_fmt+0x46/0x50
Apr 4 11:26:06 athena kernel: [ 42.317778] [<ffffffffc0301e80>] drm_wait_one_vblank+0x170/0x180 [drm]
Apr 4 11:26:06 athena kernel: [ 42.317806] [<ffffffffc043f48f>] ? gen4_read32+0x4f/0xc0 [i915]
Apr 4 11:26:06 athena kernel: [ 42.317829] [<ffffffffc0491975>] intel_enable_tv+0x25/0x60 [i915]
Apr 4 11:26:06 athena kernel: [ 42.317848] [<ffffffffc045cdfb>] i9xx_crtc_enable+0x3fb/0x4c0 [i915]
Apr 4 11:26:06 athena kernel: [ 42.317867] [<ffffffffc045b392>] __intel_set_mode+0x882/0xc80 [i915]
Apr 4 11:26:06 athena kernel: [ 42.317886] [<ffffffffc0460edd>] intel_set_mode+0x6d/0x90 [i915]
Apr 4 11:26:06 athena kernel: [ 42.317906] [<ffffffffc0461176>] intel_get_load_detect_pipe+0x276/0x600 [i915]
Apr 4 11:26:06 athena kernel: [ 42.317927] [<ffffffffc0492575>] intel_tv_detect+0x135/0x670 [i915]
Apr 4 11:26:06 athena kernel: [ 42.317936] [<ffffffffc039cb13>] drm_helper_probe_single_connector_modes_merge_bits+0x303/0x460 [drm_kms_helper]
Apr 4 11:26:06 athena kernel: [ 42.317942] [<ffffffffc039cc83>] drm_helper_probe_single_connector_modes+0x13/0x20 [drm_kms_helper]
Apr 4 11:26:06 athena kernel: [ 42.317956] [<ffffffffc030e11f>] drm_mode_getconnector+0x43f/0x4b0 [drm]
Apr 4 11:26:06 athena kernel: [ 42.317965] [<ffffffffc02ffadf>] drm_ioctl+0x1df/0x680 [drm]
Apr 4 11:26:06 athena kernel: [ 42.317970] [<ffffffff81207ab0>] do_vfs_ioctl+0x2e0/0x4e0
Apr 4 11:26:06 athena kernel: [ 42.317975] [<ffffffff816a37a5>] ? __sys_recvmsg+0x65/0x80
Apr 4 11:26:06 athena kernel: [ 42.317977] [<ffffffff81207d31>] SyS_ioctl+0x81/0xa0
Apr 4 11:26:06 athena kernel: [ 42.317981] [<ffffffff817c86cd>] system_call_fastpath+0x16/0x1b
Apr 4 11:26:06 athena kernel: [ 42.317983] ---[ end trace 474b829a0ae8ec9d ]---
Apr 4 11:31:28 athena kernel: [ 364.413162] perf interrupt took too long (2501 > 2500), lowering kernel.perf_event_max_sample_rate to 50000