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<body><span class="vcard"><a class="email" href="mailto:odi@odi.ch" title="Ortwin Glück <odi@odi.ch>"> <span class="fn">Ortwin Glück</span></a>
</span> changed
<a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [BYT,BSW] RPM wakelock ref not held during HW access (intel_pre_plane_update->intel_set_memory_cxsr)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93440">bug 93440</a>
<br>
<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>CLOSED
</td>
<td>REOPENED
</td>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>FIXED
</td>
<td>---
</td>
</tr></table>
<p>
<div>
<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [BYT,BSW] RPM wakelock ref not held during HW access (intel_pre_plane_update->intel_set_memory_cxsr)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93440#c4">Comment # 4</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [BYT,BSW] RPM wakelock ref not held during HW access (intel_pre_plane_update->intel_set_memory_cxsr)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93440">bug 93440</a>
from <span class="vcard"><a class="email" href="mailto:odi@odi.ch" title="Ortwin Glück <odi@odi.ch>"> <span class="fn">Ortwin Glück</span></a>
</span></b>
<pre>I just got this on 4.20 but never had that before:
[Tue Jan 8 08:52:25 2019] ------------[ cut here ]------------
[Tue Jan 8 08:52:25 2019] RPM wakelock ref not held during HW access
[Tue Jan 8 08:52:25 2019] WARNING: CPU: 1 PID: 2808 at
drivers/gpu/drm/i915/intel_drv.h:2015 gen6_read32+0x10c/0x140
[Tue Jan 8 08:52:25 2019] CPU: 1 PID: 2808 Comm: X Not tainted 4.20.0 #1
[Tue Jan 8 08:52:25 2019] Hardware name: Hewlett-Packard HP ZBook 15/1909,
BIOS L70 Ver. 01.21 08/13/2014
[Tue Jan 8 08:52:25 2019] RIP: 0010:gen6_read32+0x10c/0x140
[Tue Jan 8 08:52:25 2019] Code: 16 af ff 0f 0b e9 30 ff ff ff 80 3d 77 c4 2b
01 00 0f 85 31 ff ff ff 48 c7 c7 d0 a3 58 9d c6 05 63 c4 2b 01 01 e8 a4 16 af
ff <0f> 0b e9 17 ff ff ff b9 01 00 00 00 ba 01 00 00 00 89 ee 48 89 04
[Tue Jan 8 08:52:25 2019] RSP: 0018:ffffacb5858c7808 EFLAGS: 00010282
[Tue Jan 8 08:52:25 2019] RAX: 0000000000000000 RBX: ffff9c7903f60000 RCX:
0000000000000000
[Tue Jan 8 08:52:25 2019] RDX: 000000000000002a RSI: ffffffff9debbc4a RDI:
ffffffff9deb9808
[Tue Jan 8 08:52:25 2019] RBP: 000000000007f020 R08: 0000000000000002 R09:
000000000001f280
[Tue Jan 8 08:52:25 2019] R10: ffff9c78b1725b3c R11: 0000000000000000 R12:
ffff9c78b1725800
[Tue Jan 8 08:52:25 2019] R13: ffff9c7903f60000 R14: 0000000000000000 R15:
0000000000000012
[Tue Jan 8 08:52:25 2019] FS: 00007ff6f05bb5c0(0000)
GS:ffff9c790ea40000(0000) knlGS:0000000000000000
[Tue Jan 8 08:52:25 2019] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[Tue Jan 8 08:52:25 2019] CR2: 000055bdc25a7cf0 CR3: 00000003c4ee8005 CR4:
00000000001606e0
[Tue Jan 8 08:52:25 2019] Call Trace:
[Tue Jan 8 08:52:25 2019] intel_psr_compute_config+0x76/0x1d0
[Tue Jan 8 08:52:25 2019] intel_dp_compute_config+0x474/0x780
[Tue Jan 8 08:52:25 2019] intel_ddi_compute_config+0x64/0x80
[Tue Jan 8 08:52:25 2019] intel_atomic_check+0x542/0x10c0
[Tue Jan 8 08:52:25 2019] drm_atomic_check_only+0x421/0x650
[Tue Jan 8 08:52:25 2019] drm_atomic_commit+0xe/0x50
[Tue Jan 8 08:52:25 2019] restore_fbdev_mode_atomic+0x16f/0x1d0
[Tue Jan 8 08:52:25 2019] drm_fb_helper_restore_fbdev_mode_unlocked+0x40/0x90
[Tue Jan 8 08:52:25 2019] drm_fb_helper_set_par+0x24/0x50
[Tue Jan 8 08:52:25 2019] intel_fbdev_set_par+0x11/0x40
[Tue Jan 8 08:52:25 2019] fb_set_var+0x176/0x3c0
[Tue Jan 8 08:52:25 2019] ? nvkm_memory_unref+0x45/0x50
[Tue Jan 8 08:52:25 2019] ? ktime_get+0x36/0x90
[Tue Jan 8 08:52:25 2019] ? nvkm_object_del+0x5b/0xa0
[Tue Jan 8 08:52:25 2019] fbcon_blank+0x18c/0x2e0
[Tue Jan 8 08:52:25 2019] do_unblank_screen+0x8d/0x140
[Tue Jan 8 08:52:25 2019] vt_ioctl+0x4d2/0x1140
[Tue Jan 8 08:52:25 2019] ? __wake_up_common_lock+0x84/0xb0
[Tue Jan 8 08:52:25 2019] tty_ioctl+0xeb/0x890
[Tue Jan 8 08:52:25 2019] ? jbd2_journal_stop+0xea/0x2c0
[Tue Jan 8 08:52:25 2019] do_vfs_ioctl+0x9c/0x620
[Tue Jan 8 08:52:25 2019] ? vga_arb_release+0xc7/0xd0
[Tue Jan 8 08:52:25 2019] ? mntput_no_expire+0xc/0x1c0
[Tue Jan 8 08:52:25 2019] ksys_ioctl+0x35/0x60
[Tue Jan 8 08:52:25 2019] __x64_sys_ioctl+0x11/0x20
[Tue Jan 8 08:52:25 2019] do_syscall_64+0x3d/0xf0
[Tue Jan 8 08:52:25 2019] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[Tue Jan 8 08:52:25 2019] RIP: 0033:0x7ff6ee1d82a7
[Tue Jan 8 08:52:25 2019] Code: 00 00 00 75 0c 48 c7 c0 ff ff ff ff 48 83 c4
18 c3 e8 4d e0 01 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 b8 10 00 00 00 0f
05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d b1 7b 2c 00 f7 d8 64 89 01 48
[Tue Jan 8 08:52:25 2019] RSP: 002b:00007fff669e9918 EFLAGS: 00003246
ORIG_RAX: 0000000000000010
[Tue Jan 8 08:52:25 2019] RAX: ffffffffffffffda RBX: 000055bdc1037520 RCX:
00007ff6ee1d82a7
[Tue Jan 8 08:52:25 2019] RDX: 0000000000000000 RSI: 0000000000004b3a RDI:
000000000000000a
[Tue Jan 8 08:52:25 2019] RBP: 00000000ffffffff R08: 000055bdc256c080 R09:
000055bdc256c090
[Tue Jan 8 08:52:25 2019] R10: 0000000000000038 R11: 0000000000003246 R12:
000055bdc1059100
[Tue Jan 8 08:52:25 2019] R13: ffffffffffffffff R14: 000055bdc10550a8 R15:
ffffffffffffffff
[Tue Jan 8 08:52:25 2019] ---[ end trace 96b8cfd507b80f52 ]---</pre>
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