<html>
<head>
<base href="https://bugs.freedesktop.org/">
</head>
<body><span class="vcard"><a class="email" href="mailto:erik.koennecke@gmail.com" title="Erik Koennecke <erik.koennecke@gmail.com>"> <span class="fn">Erik Koennecke</span></a>
</span> changed
<a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [i9xx TV][BISECT] vblank wait timeout on crtc"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93782">bug 93782</a>
<br>
<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">CC</td>
<td>
</td>
<td>erik.koennecke@gmail.com
</td>
</tr></table>
<p>
<div>
<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [i9xx TV][BISECT] vblank wait timeout on crtc"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93782#c21">Comment # 21</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [i9xx TV][BISECT] vblank wait timeout on crtc"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93782">bug 93782</a>
from <span class="vcard"><a class="email" href="mailto:erik.koennecke@gmail.com" title="Erik Koennecke <erik.koennecke@gmail.com>"> <span class="fn">Erik Koennecke</span></a>
</span></b>
<pre>The bug is still in 4.9.0-rc2, on a Dell Latitude D830 with i915 graphics. It
gets triggered during the boot process 14 times and is delaying considerably,
sometimes freezing the machine.
[ 12.100251] ------------[ cut here ]------------
[ 12.100292] WARNING: CPU: 0 PID: 6 at
/home/kernel/COD/linux/drivers/gpu/drm/drm_irq.c:1252
drm_wait_one_vblank+0x1aa/0x1b0 [drm]
[ 12.100294] vblank wait timed out on crtc 0
[ 12.100295] Modules linked in: uas usb_storage psmouse ahci libahci
firewire_ohci pata_acpi firewire_core crc_itu_t tg3 ptp pps_core i915 wmi
i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt video fb_sys_fops
drm
[ 12.100329] CPU: 0 PID: 6 Comm: kworker/u4:0 Not tainted
4.9.0-040900rc2-generic #201610232131
[ 12.100331] Hardware name: Dell Inc. Latitude D830
/0HN341, BIOS A17 06/19/2013
[ 12.100339] Workqueue: events_unbound async_run_entry_fn
[ 12.100342] ffffaf220065f9d0 ffffffff86416f32 ffffaf220065fa20
0000000000000000
[ 12.100348] ffffaf220065fa10 ffffffff860835ab 000004e49276e000
ffff8a7992730000
[ 12.100354] 0000000000000000 0000000000000000 0000000001000001
ffff8a799271fc08
[ 12.100359] Call Trace:
[ 12.100367] [<ffffffff86416f32>] dump_stack+0x63/0x81
[ 12.100372] [<ffffffff860835ab>] __warn+0xcb/0xf0
[ 12.100376] [<ffffffff8608362f>] warn_slowpath_fmt+0x5f/0x80
[ 12.100383] [<ffffffff860c82d6>] ? finish_wait+0x56/0x70
[ 12.100405] [<ffffffffc02a1a2a>] drm_wait_one_vblank+0x1aa/0x1b0 [drm]
[ 12.100408] [<ffffffff860c86f0>] ? wake_atomic_t_function+0x60/0x60
[ 12.100487] [<ffffffffc040fb4b>] intel_get_load_detect_pipe+0x5fb/0x610
[i915]
[ 12.100518] [<ffffffffc044b0b5>] intel_tv_detect+0x155/0x550 [i915]
[ 12.100525] [<ffffffffc034315f>]
drm_helper_probe_single_connector_modes+0x3ff/0x4f0 [drm_kms_helper]
[ 12.100537] [<ffffffffc0351a8e>] drm_fb_helper_initial_config+0xae/0x430
[drm_kms_helper]
[ 12.100565] [<ffffffffc0424d88>] intel_fbdev_initial_config+0x18/0x30
[i915]
[ 12.100566] [<ffffffff860a7d37>] async_run_entry_fn+0x37/0x150
[ 12.100568] [<ffffffff8609e40c>] process_one_work+0x1fc/0x4b0
[ 12.100569] [<ffffffff8609e70b>] worker_thread+0x4b/0x500
[ 12.100571] [<ffffffff8609e6c0>] ? process_one_work+0x4b0/0x4b0
[ 12.100573] [<ffffffff860a4a69>] kthread+0xd9/0xf0
[ 12.100575] [<ffffffff860a4990>] ? kthread_park+0x60/0x60
[ 12.100577] [<ffffffff86890f35>] ret_from_fork+0x25/0x30
[ 12.100579] ---[ end trace 6070e1592611415d ]---
[ 12.245461] ------------[ cut here ]------------</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
<li>You are the QA Contact for the bug.</li>
</ul>
</body>
</html>