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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - 2015 ThinkPad Models (Carbon and X250) System Freezing and Crashing"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95070">95070</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>2015 ThinkPad Models (Carbon and X250) System Freezing and Crashing
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>XOrg git
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</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>quachtlc@gmail.com
</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>Hi, we are getting a lot of reports of the ThinkPad models randomnly freezing.
The screen is visible, but the mouse and keyboard do not respond.
I'm seeing the following information in the logs:
Mar 28 14:56:14 hostname kernel: [ 53.478256] [drm:gen8_irq_handler
[i915_bpo]] *ERROR* The master control interrupt lied (SDE)!
Mar 28 14:56:14 hostname kernel: [ 53.478291] [drm:gen8_irq_handler
[i915_bpo]] *ERROR* The master control interrupt lied (SDE)!
Mar 28 14:56:14 hostname kernel: [ 53.478416] [drm:gen8_irq_handler
[i915_bpo]] *ERROR* The master control interrupt lied (SDE)!
Mar 28 14:56:14 hostname kernel: [ 53.478576] [drm:gen8_irq_handler
[i915_bpo]] *ERROR* The master control interrupt lied (SDE)!
The above message was linked to this bug:
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [BDW][drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)!"
href="show_bug.cgi?id=92084">https://bugs.freedesktop.org/show_bug.cgi?id=92084</a> and it seems that it's a
no-op? So that doesn't seem to be the issue.
And a kernel oops:
[ 81.541081] snd_hda_intel 0000:00:1b.0: IRQ timing workaround is activated
for card #0. Suggest a bigger bdl_pos_adj.
[ 82.045438] ------------[ cut here ]------------
[ 82.045478] WARNING: CPU: 0 PID: 3993 at
/build/linux-lts-vivid-plKvyb/linux-lts-vivid-3.19.0/ubuntu/i915/intel_uncore.c:620
hsw_unclaimed_reg_debug.isra.14+0x80/0xa0 [i915_bpo]()
[ 82.045481] Unclaimed register detected before reading register 0x223a0
[ 82.045482] Modules linked in: ctr ccm iptable_nat nf_nat_ipv4 pci_stub
vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) xt_recent ip6t_REJECT
nf_reject_ipv6 nf_log_ipv6 nf_conntrack_ipv6 nf_defrag_ipv6 xt_hl ip6t_rt
ipt_REJECT nf_reject_ipv4 nf_log_ipv4 nf_log_common xt_LOG xt_NFLOG
nfnetlink_log nfnetlink xt_limit lenovowmi(OE) xt_tcpudp nf_conntrack_ipv4
nf_defrag_ipv4 bnep rfcomm xt_addrtype xt_owner arc4 btusb bluetooth iwlmvm
mac80211 uvcvideo videobuf2_vmalloc videobuf2_memops iwlwifi dm_multipath
rtsx_pci_ms videobuf2_core v4l2_common memstick cfg80211 xt_conntrack scsi_dh
videodev media intel_rapl iosf_mbi nfsd x86_pkg_temp_thermal intel_powerclamp
binfmt_misc auth_rpcgss nfs_acl ip6table_filter snd_hda_codec_hdmi nfs coretemp
lockd grace sunrpc ip6_tables snd_hda_codec_realtek fscache
snd_hda_codec_generic xt_state xt_helper nf_nat_tftp nf_conntrack_tftp
nf_nat_irc nf_conntrack_irc nf_nat_ftp kvm nf_nat nf_conntrack_ftp nf_conntrack
snd_hda_intel iptable_filter snd_hda_controller snd_hda_codec snd_hwdep
ip_tables x_tables joydev serio_raw snd_pcm lpc_ich shpchp snd_seq_midi
snd_seq_midi_event mei_me mei snd_rawmidi i915_bpo thinkpad_acpi nvram snd_seq
snd_seq_device snd_timer snd intel_ips soundcore mac_hid drm_kms_helper drm
i2c_algo_bit parport_pc ppdev lp parport btrfs xor raid6_pq dm_crypt dm_mirror
dm_region_hash dm_log crct10dif_pclmul crc32_pclmul rtsx_pci_sdmmc aesni_intel
aes_x86_64 lrw e1000e gf128mul glue_helper psmouse ablk_helper cryptd ptp ahci
pps_core libahci rtsx_pci wmi video
[ 82.045578] CPU: 0 PID: 3993 Comm: WorkerPool/3993 Tainted: G OE
3.19.0-51-generic #58~14.04.1-Ubuntu
[ 82.045579] Hardware name: LENOVO 20CLS18S00/20CLS18S00, BIOS N10ET33W (1.12
) 04/06/2015
[ 82.045581] ffffffffc04f28e0 ffff88022dc03c88 ffffffff817afe47
0000000000000000
[ 82.045584] ffff88022dc03cd8 ffff88022dc03cc8 ffffffff81074c3a
ffff88022dc13ef8
[ 82.045586] ffff8802200e0078 ffff8802200e0000 ffff8802200e0080
ffff8802200e0078
[ 82.045590] Call Trace:
[ 82.045591] <IRQ> [<ffffffff817afe47>] dump_stack+0x45/0x57
[ 82.045603] [<ffffffff81074c3a>] warn_slowpath_common+0x8a/0xc0
[ 82.045605] [<ffffffff81074cb6>] warn_slowpath_fmt+0x46/0x50
[ 82.045626] [<ffffffffc0472410>] hsw_unclaimed_reg_debug.isra.14+0x80/0xa0
[i915_bpo]
[ 82.045642] [<ffffffffc04743ff>] gen6_read32+0x5f/0x1c0 [i915_bpo]
[ 82.045658] [<ffffffffc04693d8>] intel_lrc_irq_handler+0x38/0x250
[i915_bpo]
[ 82.045672] [<ffffffffc04607c4>] gen8_gt_irq_handler+0x274/0x2b0 [i915_bpo]
[ 82.045686] [<ffffffffc046087f>] gen8_irq_handler+0x7f/0x5a0 [i915_bpo]
[ 82.045690] [<ffffffff814c535a>] ? add_interrupt_randomness+0x3a/0x1e0
[ 82.045694] [<ffffffff810cbf1e>] handle_irq_event_percpu+0x3e/0x1a0
[ 82.045697] [<ffffffff810cc0c1>] handle_irq_event+0x41/0x70
[ 82.045700] [<ffffffff810cf06f>] handle_edge_irq+0x7f/0x120
[ 82.045703] [<ffffffff81017622>] handle_irq+0x22/0x40
[ 82.045706] [<ffffffff817ba821>] do_IRQ+0x51/0xf0
[ 82.045709] [<ffffffff817b862d>] common_interrupt+0x6d/0x6d
[ 82.045711] <EOI> [<ffffffff817b7958>] ? sysret_audit+0x17/0x21
[ 82.045715] ---[ end trace 8c5d88b69a683499 ]---</pre>
</div>
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