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<head>
<base href="https://bugs.freedesktop.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - high system load and mouse delays - pipe A vblank wait timed out"
href="https://bugs.freedesktop.org/show_bug.cgi?id=102711">102711</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>high system load and mouse delays - pipe A vblank wait timed out
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>major
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>albert@weichselbraun.net
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=134202" name="attach_134202" title="kernel messages since boot (with drm.debug=0x1e log_buf_len=1M)">attachment 134202</a> <a href="attachment.cgi?id=134202&action=edit" title="kernel messages since boot (with drm.debug=0x1e log_buf_len=1M)">[details]</a></span>
kernel messages since boot (with drm.debug=0x1e log_buf_len=1M)
This issue has been observed on a Lenovo X220i laptop and affects all linux
kernels later than 4.12.7:
1. Booting the kernel results in a very sluggish system performance (mouse
pointer delays) and a high system load even before wayland or xorg are started.
2. Both wayland and xorg are affected.
3. /var/log/kern.log indicates a problem with the display driver (see below)
First kernel version affected by this issue: 4.12.8
Latest tested kernel version: 4.13.1-041301-generic (Ubuntu mainline)
After some time the following message is logged:
<snip>
Sep 13 21:33:02 trinity kernel: [ 359.815623] pipe A vblank wait timed out
Sep 13 21:33:02 trinity kernel: [ 359.815704] ------------[ cut here
]------------
Sep 13 21:33:02 trinity kernel: [ 359.815813] WARNING: CPU: 1 PID: 99 at
/home/kernel/COD/linux/drivers/gpu/drm/i915/intel_display.c:12844
intel_atomic_commit_tail+0xf7d/0xf90 [i915]
Sep 13 21:33:02 trinity kernel: [ 359.815815] Modules linked in: dm_crypt
crypto_simd glue_helper aes_x86_64 algif_skcipher af_alg 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 binfmt_misc intel_rapl x86_pkg_temp_thermal
snd_hda_codec_hdmi intel_powerclamp snd_hda_codec_conexant
snd_hda_codec_generic coretemp kvm_intel kvm snd_hda_intel uvcvideo irqbypass
snd_hda_codec crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_core
cryptd snd_hwdep snd_pcm arc4 intel_cstate videobuf2_vmalloc intel_rapl_perf
videobuf2_memops videobuf2_v4l2 videobuf2_core snd_seq_midi videodev iwldvm
snd_seq_midi_event media snd_rawmidi
Sep 13 21:33:02 trinity kernel: [ 359.815884] mac80211 input_leds serio_raw
wmi_bmof snd_seq iwlwifi thinkpad_acpi cfg80211 snd_seq_device nvram snd_timer
snd soundcore lpc_ich mac_hid mei_me mei shpchp parport_pc ppdev lp parport
ip_tables x_tables autofs4 xfs libcrc32c mmc_block i915 uas usb_storage psmouse
i2c_algo_bit drm_kms_helper ahci syscopyarea libahci sdhci_pci sysfillrect
sysimgblt sdhci fb_sys_fops e1000e drm ptp pps_core wmi video
Sep 13 21:33:02 trinity kernel: [ 359.815945] CPU: 1 PID: 99 Comm:
kworker/u16:2 Not tainted 4.13.1-041301-generic #201709100232
Sep 13 21:33:02 trinity kernel: [ 359.815947] Hardware name: LENOVO
4290W1A/4290W1A, BIOS 8DET69WW (1.39 ) 07/18/2013
Sep 13 21:33:02 trinity kernel: [ 359.816025] Workqueue: events_unbound
intel_atomic_commit_work [i915]
Sep 13 21:33:02 trinity kernel: [ 359.816029] task: ffff8b151b92ae80
task.stack: ffffb25641d60000
Sep 13 21:33:02 trinity kernel: [ 359.816097] RIP:
0010:intel_atomic_commit_tail+0xf7d/0xf90 [i915]
Sep 13 21:33:02 trinity kernel: [ 359.816100] RSP: 0018:ffffb25641d63d88
EFLAGS: 00010282
Sep 13 21:33:02 trinity kernel: [ 359.816104] RAX: 000000000000001c RBX:
0000000000000000 RCX: 0000000000000000
Sep 13 21:33:02 trinity kernel: [ 359.816106] RDX: 0000000000000000 RSI:
ffff8b151e24dc78 RDI: ffff8b151e24dc78
Sep 13 21:33:02 trinity kernel: [ 359.816108] RBP: ffffb25641d63e40 R08:
0000000000000001 R09: 00000000000048da
Sep 13 21:33:02 trinity kernel: [ 359.816110] R10: ffffb25641d63d88 R11:
0000000000000000 R12: 0000000000005305
Sep 13 21:33:02 trinity kernel: [ 359.816112] R13: ffff8b14ff080000 R14:
ffff8b1500127000 R15: 0000000000000001
Sep 13 21:33:02 trinity kernel: [ 359.816115] FS: 0000000000000000(0000)
GS:ffff8b151e240000(0000) knlGS:0000000000000000
Sep 13 21:33:02 trinity kernel: [ 359.816118] CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Sep 13 21:33:02 trinity kernel: [ 359.816120] CR2: 00007fb9866f0ce0 CR3:
0000000419e09000 CR4: 00000000000406e0
Sep 13 21:33:02 trinity kernel: [ 359.816123] Call Trace:
Sep 13 21:33:02 trinity kernel: [ 359.816137] ? dequeue_task_fair+0x49f/0x640
Sep 13 21:33:02 trinity kernel: [ 359.816146] ? wait_woken+0x80/0x80
Sep 13 21:33:02 trinity kernel: [ 359.816237]
intel_atomic_commit_work+0x12/0x20 [i915]
Sep 13 21:33:02 trinity kernel: [ 359.816248] process_one_work+0x1e7/0x410
Sep 13 21:33:02 trinity kernel: [ 359.816256] worker_thread+0x4a/0x410
Sep 13 21:33:02 trinity kernel: [ 359.816262] kthread+0x125/0x140
Sep 13 21:33:02 trinity kernel: [ 359.816269] ? process_one_work+0x410/0x410
Sep 13 21:33:02 trinity kernel: [ 359.816274] ?
kthread_create_on_node+0x70/0x70
Sep 13 21:33:02 trinity kernel: [ 359.816279] ?
kthread_create_on_node+0x70/0x70
Sep 13 21:33:02 trinity kernel: [ 359.816289] ret_from_fork+0x25/0x30
Sep 13 21:33:02 trinity kernel: [ 359.816293] Code: ff ff ff 48 83 c7 08 e8 e2
10 62 fb 4c 8b 85 70 ff ff ff 4d 85 c0 0f 85 7b fa ff ff 8d 73 41 48 c7 c7 30
51 37 c0 e8 64 c3 63 fb <0f> ff e9 65 fa ff ff 66 90 66 2e 0f 1f 84 00 00 00 00
00 66 66
Sep 13 21:33:02 trinity kernel: [ 359.816385] ---[ end trace f7a688c44f58bb5a
]---
</snip></pre>
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