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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [ivb] i915: slowpath warning on module load with fastboot=1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=68068">68068</a>
</td>
</tr>
<tr>
<th>CC</th>
<td>kirill@shutemov.name
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[ivb] i915: slowpath warning on module load with fastboot=1
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>mike@altlinux.org
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>XOrg CVS
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=84017" name="attach_84017" title="/home/mike/work/alt/drm-intel/dmesg-3.11-rc5.fastboot">attachment 84017</a> <a href="attachment.cgi?id=84017&action=edit" title="/home/mike/work/alt/drm-intel/dmesg-3.11-rc5.fastboot">[details]</a></span>
/home/mike/work/alt/drm-intel/dmesg-3.11-rc5.fastboot
Got this in kernel messages while providing info on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [ivb regression][bisect] 3.10: i915 blanks eDP panel (backlight set to 0 and further ineffective)"
href="show_bug.cgi?id=67950">bug #67950</a>; it's Linux
3.11-rc5 x86_64 running on an ASUS UX31A (i7-3517U) in UEFI mode. Kirill
suggested to post it separately.
[ 2.433780] ------------[ cut here ]------------
[ 2.433808] WARNING: CPU: 2 PID: 846 at drivers/gpu/drm/i915/i915_gem.c:3428
i915_gem_object_set_cache_level+0x2d9/0x300 [i915]()
[ 2.433809] Modules linked in: arc4 iwldvm mac80211 coretemp hwmon
snd_hda_codec_hdmi x86_pkg_temp_thermal intel_powerclamp crc32_p
clmul snd_hda_codec_realtek crc32c_intel ghash_clmulni_intel aesni_intel
i915(+) aes_x86_64 iwlwifi lrw gf128mul glue_helper ablk_help
er cryptd cfg80211 iTCO_wdt iTCO_vendor_support intel_agp intel_gtt
snd_hda_intel drm_kms_helper snd_hda_codec microcode snd_hwdep drm
ehci_pci psmouse snd_pcm xhci_hcd wmi ehci_hcd rfkill pcspkr snd_page_alloc
i2c_algo_bit usbcore snd_timer thermal usb_common snd sou
ndcore video i2c_i801 lpc_ich i2c_core battery ac mperf processor button
efivars ext4 crc16 mbcache jbd2 sd_mod crc_t10dif ahci libahc
i evdev libata serio_raw scsi_mod
[ 2.433868] CPU: 2 PID: 846 Comm: systemd-udevd Not tainted
3.11.0-glebfm-test-alt3.rc5 #1
[ 2.433870] Hardware name: ASUSTeK COMPUTER INC. UX31A/UX31A, BIOS UX31A.214
08/28/2012
[ 2.433872] 0000000000000009 ffff8801189fb5b8 ffffffff814cffdd
0000000000000047
[ 2.433875] 0000000000000000 ffff8801189fb5f8 ffffffff81062c77
0000000000000fe0
[ 2.433878] ffff8801171fce90 0000000000000041 0000000000000000
ffff8801171fce40
[ 2.433881] Call Trace:
[ 2.433886] [<ffffffff814cffdd>] dump_stack+0x55/0x86
[ 2.433891] [<ffffffff81062c77>] warn_slowpath_common+0x87/0xb0
[ 2.433895] [<ffffffff81062cb5>] warn_slowpath_null+0x15/0x20
[ 2.433909] [<ffffffffa0423aa9>]
i915_gem_object_set_cache_level+0x2d9/0x300 [i915]
[ 2.433921] [<ffffffffa0423be4>]
i915_gem_object_pin_to_display_plane+0x44/0x190 [i915]
[ 2.433937] [<ffffffffa043b8d0>] intel_pin_and_fence_fb_obj+0xc0/0x140
[i915]
[ 2.433941] [<ffffffff814d2ef6>] ? mutex_lock+0x26/0x4a
[ 2.433959] [<ffffffffa04659f2>] intelfb_create+0x102/0x500 [i915]
[ 2.433971] [<ffffffffa035f2b1>] drm_fb_helper_initial_config+0x301/0x530
[drm_kms_helper]
[ 2.433974] [<ffffffff81051de3>] ? default_spin_lock_flags+0x13/0x20
[ 2.433992] [<ffffffffa0472866>] ? i915_write32+0xb6/0x1b0 [i915]
[ 2.434008] [<ffffffffa0465ebc>] intel_fbdev_initial_config+0x1c/0x20
[i915]
[ 2.434021] [<ffffffffa040d29e>] i915_driver_load+0xe5e/0xe90 [i915]
[ 2.434037] [<ffffffffa029aac6>] drm_get_pci_dev+0x176/0x2a0 [drm]
[ 2.434050] [<ffffffffa04093f7>] i915_pci_probe+0x27/0x70 [i915]
[ 2.434053] [<ffffffff812ad696>] local_pci_probe+0x46/0x80
[ 2.434056] [<ffffffff812ad8f1>] pci_device_probe+0x101/0x110
[ 2.434060] [<ffffffff81374236>] driver_probe_device+0x76/0x240
[ 2.434063] [<ffffffff8137449b>] __driver_attach+0x9b/0xa0
[ 2.434066] [<ffffffff81374400>] ? driver_probe_device+0x240/0x240
[ 2.434069] [<ffffffff813724d5>] bus_for_each_dev+0x55/0x90
[ 2.434073] [<ffffffff81373d49>] driver_attach+0x19/0x20
[ 2.434075] [<ffffffff813738b4>] bus_add_driver+0x104/0x260
[ 2.434079] [<ffffffff81374b85>] driver_register+0x75/0x170
[ 2.434083] [<ffffffffa04b4000>] ? 0xffffffffa04b3fff
[ 2.434086] [<ffffffff812ac736>] __pci_register_driver+0x46/0x50
[ 2.434094] [<ffffffffa029ad0a>] drm_pci_init+0x11a/0x130 [drm]
[ 2.434097] [<ffffffffa04b4000>] ? 0xffffffffa04b3fff
[ 2.434109] [<ffffffffa04b4066>] i915_init+0x66/0x68 [i915]
[ 2.434113] [<ffffffff81002142>] do_one_initcall+0x102/0x170
[ 2.434116] [<ffffffff81058163>] ? set_memory_nx+0x43/0x50
[ 2.434120] [<ffffffff814cdb2c>] ? set_section_ro_nx+0x68/0x71
[ 2.434124] [<ffffffff810cd9a6>] load_module+0x1bc6/0x2500
[ 2.434127] [<ffffffff810c9d70>] ? show_initstate+0x50/0x50
[ 2.434131] [<ffffffff810ce456>] SyS_finit_module+0x86/0x90
[ 2.434134] [<ffffffff814decf7>] tracesys+0xdd/0xe2
[ 2.434137] ---[ end trace 5aa9c5adf765b312 ]---
Complete dmesg is attached either.
<a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [IVB]igt/prime_nv_api cause WARNING: CPU: 6 PID: 4095 at drivers/gpu/drm/i915/i915_gem.c:3977 i915_gem_free_object+0xf3/0x19d [i915]()"
href="show_bug.cgi?id=67391">Bug #67391</a> and <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [ivb regression] WARNING: at i915/intel_display.c:1656 ironlake_crtc_disable"
href="show_bug.cgi?id=66511">bug #66511</a> seem unrelated.</pre>
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