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<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 - [vlv] unclaimed register PIPE_CRC"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99745">99745</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[vlv] unclaimed register PIPE_CRC
</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>chris@chris-wilson.co.uk
</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>[ 105.528589] ------------[ cut here ]------------
[ 105.528721] WARNING: CPU: 0 PID: 0 at
drivers/gpu/drm/i915/intel_uncore.c:795 __unclaimed_reg_debug+0x51/0x60 [i915]
[ 105.528742] Unclaimed read from register 0x1e106c
[ 105.528754] Modules linked in: i915(+) drm_kms_helper drm intel_gtt
i2c_algo_bit prime_numbers intel_powerclamp crct10dif_pclmul crc32_pclmul
crc32c_intel ghash_clmulni_intel cryptd lpc_ich mfd_core i2c_i801 battery video
i2c_designware_platform i2c_designware_core button autofs4 sd_mod ahci libahci
libata scsi_mod fan thermal i2c_hid i2c_core hid [last unloaded: i915]
[ 105.528835] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G U W
4.10.0-rc7+ #6
[ 105.528853] Hardware name: GIGABYTE GB-BXBT-1900/MZBAYAB-00, BIOS F8
03/02/2016
[ 105.528869] Call Trace:
[ 105.528882] <IRQ>
[ 105.528900] dump_stack+0x63/0x8e
[ 105.528916] __warn+0xd1/0xf0
[ 105.528930] warn_slowpath_fmt+0x4f/0x60
[ 105.528946] ? ttwu_do_wakeup+0x19/0xf0
[ 105.529043] __unclaimed_reg_debug+0x51/0x60 [i915]
[ 105.529140] fwtable_read32+0x17a/0x1e0 [i915]
[ 105.529228] i9xx_pipe_crc_irq_handler+0x116/0x160 [i915]
[ 105.529316] valleyview_pipestat_irq_handler+0x86/0xe0 [i915]
[ 105.529404] valleyview_irq_handler+0x170/0x210 [i915]
[ 105.529420] ? __next_timer_interrupt+0xb1/0xe0
[ 105.529436] __handle_irq_event_percpu+0x81/0x1c0
[ 105.529450] handle_irq_event_percpu+0x23/0x60
[ 105.529464] handle_irq_event+0x36/0x60
[ 105.529478] handle_edge_irq+0x7b/0x150
[ 105.529493] handle_irq+0x20/0x30
[ 105.529508] do_IRQ+0x46/0xd0
[ 105.529522] common_interrupt+0x89/0x89
[ 105.529537] RIP: 0010:cpuidle_enter_state+0x153/0x2f0
[ 105.529550] RSP: 0018:ffffffff81803df8 EFLAGS: 00000246 ORIG_RAX:
ffffffffffffff8d
[ 105.529569] RAX: ffff88013fc183c0 RBX: ffffe8ffffc08d00 RCX:
000000000000001f
[ 105.529581] RDX: 0000000000000000 RSI: ffff88013fc15a98 RDI:
0000000000000000
[ 105.529594] RBP: ffffffff81803e30 R08: 0000000000000003 R09:
0000000000000e07
[ 105.529607] R10: 00000000ffffffff R11: ffff88013fc152a4 R12:
0000000000000003
[ 105.529620] R13: 0000000000000003 R14: 0000000000000000 R15:
00000018917bcfe4
[ 105.529632] </IRQ>
[ 105.529647] ? cpuidle_enter_state+0x12f/0x2f0
[ 105.529661] cpuidle_enter+0x17/0x20
[ 105.529676] call_cpuidle+0x2c/0x50
[ 105.529689] do_idle+0x102/0x1e0
[ 105.529703] cpu_startup_entry+0x1d/0x20
[ 105.529718] rest_init+0x85/0x90
[ 105.529731] start_kernel+0x41c/0x429
[ 105.529746] ? early_idt_handler_array+0x120/0x120
[ 105.529760] x86_64_start_reservations+0x2a/0x2c
[ 105.529775] x86_64_start_kernel+0x13b/0x14a
[ 105.529789] start_cpu+0x14/0x14
[ 105.529802] ---[ end trace 7eff6599c6c80b74 ]---</pre>
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