<html>
<head>
<base href="https://bugs.freedesktop.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BAT] igt@vgem_basic@debugfs - dmesg-fails - regression"
href="https://bugs.freedesktop.org/show_bug.cgi?id=103703">103703</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[BAT] igt@vgem_basic@debugfs - dmesg-fails - regression
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>DRI 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>marta.lofstedt@intel.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>From CI_DRM_3334 and all consecutive runs igt@vgem_basic@debugfs dmesg-fails on
most BAT machines.
<a href="https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3334/commits.log">https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3334/commits.log</a>
an example:
<a href="https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3334/fi-skl-6600u/igt@vgem_basic@debugfs.html">https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3334/fi-skl-6600u/igt@vgem_basic@debugfs.html</a>
long ftrace on typically:
[ 483.304338] prime_vg-4312 1..s. 480563110us : intel_lrc_irq_handler:
...
[ 483.304350] Modules linked in: vgem snd_hda_codec_hdmi snd_hda_codec_realtek
snd_hda_codec_generic snd_hda_intel snd_hda_codec x86_pkg_temp_thermal
intel_powerclamp snd_hwdep coretemp crct10dif_pclmul snd_hda_core crc32_pclmul
ghash_clmulni_intel i915 snd_pcm asix usbnet mii mei_me mei prime_numbers
i2c_hid pinctrl_sunrisepoint pinctrl_intel
[ 483.304387] CPU: 1 PID: 4321 Comm: vgem_basic Tainted: G U
4.14.0-rc8-CI-CI_DRM_3334+ #1
[ 483.304394] Hardware name: Dell Inc. XPS 13 9350/ , BIOS 1.4.12
11/30/2016
[ 483.304401] task: ffff8802085c50c0 task.stack: ffffc90001a28000
[ 483.304407] RIP: 0010:drm_framebuffer_info+0x77/0xc0
[ 483.304412] RSP: 0018:ffffc90001a2bd68 EFLAGS: 00010286
[ 483.304417] RAX: 0000000000000000 RBX: fffffffffffffff8 RCX:
0000000000000001
[ 483.304423] RDX: 0000000080000001 RSI: 0000000000000000 RDI:
00000000ffffffff
[ 483.304428] RBP: ffffc90001a2bda0 R08: 0000000000000000 R09:
0000000000000000
[ 483.304434] R10: ffffc90001a2bd58 R11: ffffffff81607ef8 R12:
ffff88026dd5a950
[ 483.304439] R13: ffff88026dd5a8c8 R14: ffffffff81ce969b R15:
ffff880271bce2b8
[ 483.304445] FS: 00007f8de58158c0(0000) GS:ffff88027dc80000(0000)
knlGS:0000000000000000
[ 483.304451] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 483.304456] CR2: 0000000000000010 CR3: 000000026ca80005 CR4:
00000000003606e0
[ 483.304462] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 483.304467] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
[ 483.304473] Call Trace:
[ 483.304476] ? drm_mode_gamma_get_ioctl+0xf0/0xf0
[ 483.304482] seq_read+0xe1/0x3a0
[ 483.304488] full_proxy_read+0x54/0x80
[ 483.304492] __vfs_read+0x28/0x120
[ 483.304496] ? putname+0x54/0x60
[ 483.304501] ? rcu_read_lock_sched_held+0x7a/0x90
[ 483.304506] ? entry_SYSCALL_64_fastpath+0x5/0xb1
[ 483.304511] vfs_read+0xa8/0x150
[ 483.304515] SyS_read+0x49/0xb0
[ 483.304519] entry_SYSCALL_64_fastpath+0x1c/0xb1
[ 483.304523] RIP: 0033:0x7f8de3ffb6d0
[ 483.304526] RSP: 002b:00007ffd88a31858 EFLAGS: 00000246 ORIG_RAX:
0000000000000000
[ 483.304533] RAX: ffffffffffffffda RBX: ffffffff81492083 RCX:
00007f8de3ffb6d0
[ 483.304538] RDX: 000000000000003f RSI: 000055b2d1ef8b20 RDI:
0000000000000005
[ 483.304544] RBP: ffffc90001a2bf88 R08: 0000000000000000 R09:
0000000000000050
[ 483.304549] R10: 0000000000000000 R11: 0000000000000246 R12:
0000000000000005
[ 483.304555] R13: 000055b2d1ef8b20 R14: 0000000000000000 R15:
0000000000000000
[ 483.304562] ? __this_cpu_preempt_check+0x13/0x20
[ 483.304566] Code: 20 06 00 00 48 a9 f8 ff ff ff 74 63 49 8b 84 24 a8 06 00
00 49 81 c4 a8 06 00 00 49 c7 c6 9b 96 ce 81 49 39 c4 48 8d 58 f8 74 2d <8b> 53
18 48 8d 7d c8 4c 89 f6 e8 4a 5c 00 00 48 8d 7d c8 48 89
[ 483.304618] RIP: drm_framebuffer_info+0x77/0xc0 RSP: ffffc90001a2bd68
[ 483.304624] CR2: 0000000000000010
[ 483.304628] ---[ end trace 082744115499dbb7 ]---
[ 485.129001] BUG: sleeping function called from invalid context at
./include/linux/percpu-rwsem.h:34
[ 485.129014] in_atomic(): 0, irqs_disabled(): 1, pid: 4321, name: vgem_basic
[ 485.129021] INFO: lockdep is turned off.
[ 485.129026] irq event stamp: 24705
[ 485.129034] hardirqs last enabled at (24705): [<ffffffff811fc6d9>]
__slab_alloc.isra.23.constprop.28+0x59/0x80
[ 485.129045] hardirqs last disabled at (24704): [<ffffffff811fc6a4>]
__slab_alloc.isra.23.constprop.28+0x24/0x80
[ 485.129055] softirqs last enabled at (24144): [<ffffffff8191c656>]
__do_softirq+0x3a6/0x4ae
[ 485.129064] softirqs last disabled at (24123): [<ffffffff810861de>]
irq_exit+0xae/0xc0
[ 485.129072] CPU: 1 PID: 4321 Comm: vgem_basic Tainted: G UD
4.14.0-rc8-CI-CI_DRM_3334+ #1
[ 485.129079] Hardware name: Dell Inc. XPS 13 9350/ , BIOS 1.4.12
11/30/2016
[ 485.129086] Call Trace:
[ 485.129091] dump_stack+0x68/0x9f
[ 485.129095] ___might_sleep+0x1e5/0x240
[ 485.129100] __might_sleep+0x4a/0x80
[ 485.129105] exit_signals+0x24/0x2a0
[ 485.129109] do_exit+0x9a/0xca0
[ 485.129114] ? SyS_read+0x49/0xb0
[ 485.129132] rewind_stack_do_exit+0x17/0x20
[ 485.129140] RIP: 0033:0x7f8de3ffb6d0
[ 485.129144] RSP: 002b:00007ffd88a31858 EFLAGS: 00000246 ORIG_RAX:
0000000000000000
[ 485.129151] RAX: ffffffffffffffda RBX: ffffffff81492083 RCX:
00007f8de3ffb6d0
[ 485.129156] RDX: 000000000000003f RSI: 000055b2d1ef8b20 RDI:
0000000000000005
[ 485.129162] RBP: ffffc90001a2bf88 R08: 0000000000000000 R09:
0000000000000050
[ 485.129168] R10: 0000000000000000 R11: 0000000000000246 R12:
0000000000000005
[ 485.129173] R13: 000055b2d1ef8b20 R14: 0000000000000000 R15:
0000000000000000
[ 485.129180] ? __this_cpu_preempt_check+0x13/0x20</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the assignee for the bug.</li>
<li>You are on the CC list for the bug.</li>
<li>You are the QA Contact for the bug.</li>
</ul>
</body>
</html>