[Bug 109824] New: [CI][DRMTIP] igt at debugfs_test@read_all_entries_display_off - dmesg-warn - Unclaimed read from register 0x1e1110

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Mar 4 08:42:34 UTC 2019 

https://bugs.freedesktop.org/show_bug.cgi?id=109824

            Bug ID: 109824
           Summary: [CI][DRMTIP]
                    igt at debugfs_test@read_all_entries_display_off -
                    dmesg-warn - Unclaimed read from register 0x1e1110
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: lakshminarayana.vudum at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_234/fi-byt-n2820/igt@debugfs_test@read_all_entries_display_off.html

 ------------[ cut here ]------------
<4> [391.642549] Unclaimed read from register 0x1e1110
<4> [391.642703] WARNING: CPU: 1 PID: 1124 at
drivers/gpu/drm/i915/intel_uncore.c:1093 __unclaimed_reg_debug+0x40/0x50 [i915]
<4> [391.642709] Modules linked in: vgem snd_hda_codec_hdmi
snd_hda_codec_realtek snd_hda_codec_generic i915 btusb btrtl btbcm btintel
coretemp crct10dif_pclmul crc32_pclmul snd_hda_intel ghash_clmulni_intel
bluetooth snd_hda_codec snd_hwdep snd_hda_core ecdh_generic r8169 snd_pcm
realtek lpc_ich prime_numbers i2c_hid
<4> [391.642747] CPU: 1 PID: 1124 Comm: debugfs_test Tainted: G     U          
 5.0.0-rc8-g348fd7b7fa65-drmtip_234+ #1
<4> [391.642752] Hardware name:
\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff
\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff/DN2820FYK,
BIOS FYBYT10H.86A.0059.2017.0607.2130 06/07/2017
<4> [391.642847] RIP: 0010:__unclaimed_reg_debug+0x40/0x50 [i915]
<4> [391.642853] Code: 74 05 5b 5d 41 5c c3 45 84 e4 48 c7 c0 c2 30 79 c0 48 c7
c6 b8 30 79 c0 48 0f 44 f0 89 ea 48 c7 c7 cb 30 79 c0 e8 30 c0 a0 d0 <0f> 0b 83
2d 57 e3 1a 00 01 5b 5d 41 5c c3 66 90 41 56 41 55 41 89
<4> [391.642858] RSP: 0018:ffffa7ed8012fd20 EFLAGS: 00010082
<4> [391.642864] RAX: 0000000000000000 RBX: 0000000000000000 RCX:
0000000000000000
<4> [391.642869] RDX: 0000000000000007 RSI: ffffffff92084383 RDI:
00000000ffffffff
<4> [391.642873] RBP: 00000000001e1110 R08: 0000000000000000 R09:
0000000000000001
<4> [391.642878] R10: ffffa7ed8012fcb8 R11: 0000000000000000 R12:
0000000000000001
<4> [391.642882] R13: 0000000000000001 R14: 00000000ffffffff R15:
0000000000000202
<4> [391.642888] FS:  00007f871f05a980(0000) GS:ffff9e853bb00000(0000)
knlGS:0000000000000000
<4> [391.642892] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4> [391.642897] CR2: 000055f27ef35058 CR3: 000000011a986000 CR4:
00000000001006e0
<4> [391.642901] Call Trace:
<4> [391.643000]  fwtable_read32+0x1e8/0x250 [i915]
<4> [391.643087]  i915_interrupt_info+0xa45/0xd30 [i915]
<4> [391.643103]  seq_read+0xdb/0x3c0
<4> [391.643114]  ? lockdep_hardirqs_off+0x94/0xd0
<4> [391.643121]  ? __slab_free+0x24e/0x4f0
<4> [391.643133]  full_proxy_read+0x51/0x80
<4> [391.643144]  __vfs_read+0x31/0x190
<4> [391.643159]  ? do_sys_open+0x13b/0x250
<4> [391.643165]  ? rcu_read_lock_sched_held+0x6f/0x80
<4> [391.643173]  vfs_read+0x9e/0x150
<4> [391.643182]  ksys_read+0x50/0xc0
<4> [391.643195]  do_syscall_64+0x55/0x190
<4> [391.643204]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4> [391.643211] RIP: 0033:0x7f871e9e534e
<4> [391.643217] Code: 00 00 00 00 48 8b 15 71 8c 20 00 f7 d8 64 89 02 48 c7 c0
ff ff ff ff c3 0f 1f 40 00 8b 05 ba d0 20 00 85 c0 75 16 31 c0 0f 05 <48> 3d 00
f0 ff ff 77 5a f3 c3 0f 1f 84 00 00 00 00 00 41 54 55 49
<4> [391.643222] RSP: 002b:00007ffee27a5c38 EFLAGS: 00000246 ORIG_RAX:
0000000000000000
<4> [391.643228] RAX: ffffffffffffffda RBX: 0000000000000000 RCX:
00007f871e9e534e
<4> [391.643233] RDX: 0000000000000200 RSI: 00007ffee27a5c80 RDI:
0000000000000008
<4> [391.643237] RBP: 00007ffee27a5e90 R08: 0000000000000000 R09:
0000000000000022
<4> [391.643242] R10: 0000000000000000 R11: 0000000000000246 R12:
000055f27ecf3390
<4> [391.643246] R13: 00007ffee27a6410 R14: 0000000000000000 R15:
0000000000000000
<4> [391.643268] irq event stamp: 165148
<4> [391.643275] hardirqs last  enabled at (165147): [<ffffffff919934c4>]
_raw_spin_unlock_irq+0x24/0x50
<4> [391.643281] hardirqs last disabled at (165148): [<ffffffff919932fd>]
_raw_spin_lock_irqsave+0xd/0x50
<4> [391.643287] softirqs last  enabled at (165144): [<ffffffff91c0033a>]
__do_softirq+0x33a/0x4b9
<4> [391.643293] softirqs last disabled at (165059): [<ffffffff910b8f21>]
irq_exit+0xd1/0xe0
<4> [391.643398] WARNING: CPU: 1 PID: 1124 at
drivers/gpu/drm/i915/intel_uncore.c:1093 __unclaimed_reg_debug+0x40/0x50 [i915]
<4> [391.643403] ---[ end trace 15ab965459a30e04 ]---

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