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Date: Wed, 7 Sep 2016 22:15:48 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: Michel Dänzer <michel.daenzer@....com>
Cc: Alex Deucher <alexander.deucher@....com>,
Christian König <christian.koenig@....com>,
Daniel Vetter <daniel.vetter@...ll.ch>,
LKML <linux-kernel@...r.kernel.org>,
Stephen Rothwell <sfr@...b.auug.org.au>, lkp@...org
Subject: [lkp] [drm] c229bfbbd0: WARNING: CPU: 1 PID: 17001 at
drivers/gpu/drm/i915/intel_display.c:1354 assert_vblank_disabled+0x5f/0x70
[i915]
FYI, we noticed the following commit:
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
commit c229bfbbd04ac112bd15331d3a06d12e4e86a45c ("drm: Add page_flip_target CRTC hook v2")
in testcase: piglit
with following parameters:
group: igt-basic
on test machine: 8 threads Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz with 8G memory
caused below changes:
+-------------------------------------------------------------------------------+------------+------------+
| | 88afb9e6cd | c229bfbbd0 |
+-------------------------------------------------------------------------------+------------+------------+
| boot_successes | 1 | 1 |
| boot_failures | 1 | 11 |
| invoked_oom-killer:gfp_mask=0x | 1 | 2 |
| Mem-Info | 1 | 2 |
| WARNING:at_drivers/gpu/drm/i915/intel_display.c:#assert_vblank_disabled[i915] | 0 | 8 |
| calltrace:SyS_ioctl | 0 | 8 |
| WARNING:at_drivers/gpu/drm/drm_irq.c:#drm_vblank_put[drm] | 0 | 8 |
| BUG:kernel_reboot-without-warning_in_test_stage | 0 | 1 |
| Out_of_memory:Kill_process | 0 | 1 |
+-------------------------------------------------------------------------------+------------+------------+
[ 434.094471] kms_flip: starting subtest basic-flip-vs-dpms
[ 434.216254] kms_flip: exiting, ret=99
[ 494.320730] ------------[ cut here ]------------
[ 494.325419] WARNING: CPU: 1 PID: 17001 at drivers/gpu/drm/i915/intel_display.c:1354 assert_vblank_disabled+0x5f/0x70 [i915]
[ 494.337895] WARN_ON(drm_crtc_vblank_get(crtc) == 0)
[ 494.342582] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver btrfs xor raid6_pq sr_mod cdrom sd_mod sg snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel snd_hda_intel snd_hda_codec kvm irqbypass i915 crct10dif_pclmul snd_hda_core crc32_pclmul crc32c_intel snd_hwdep ahci ghash_clmulni_intel libahci dcdbas snd_pcm aesni_intel drm_kms_helper lrw syscopyarea gf128mul sysfillrect glue_helper sysimgblt ablk_helper snd_timer fb_sys_fops cryptd serio_raw pcspkr snd usb_storage libata soundcore drm shpchp wmi video i2c_hid acpi_pad
[ 494.397146] CPU: 1 PID: 17001 Comm: kms_flip Tainted: G U 4.8.0-rc1-00112-gc229bfb #1
[ 494.406080] Hardware name: Dell Inc. OptiPlex 7040/0Y7WYT, BIOS 1.2.8 01/26/2016
[ 494.413453] 0000000000000000 ffff8801e9093a50 ffffffff8144bc39 ffff8801e9093aa0
[ 494.420866] 0000000000000000 ffff8801e9093a90 ffffffff8107e6cb 0000054a00000206
[ 494.428284] ffff8801eaf95000 ffff8801e9df0000 00000000fffffffc ffff8801eaf95000
[ 494.435697] Call Trace:
[ 494.438133] [<ffffffff8144bc39>] dump_stack+0x63/0x8a
[ 494.443249] [<ffffffff8107e6cb>] __warn+0xcb/0xf0
[ 494.448018] [<ffffffff8107e73f>] warn_slowpath_fmt+0x4f/0x60
[ 494.453747] [<ffffffffa0463a1f>] assert_vblank_disabled+0x5f/0x70 [i915]
[ 494.460515] [<ffffffffa0476fd2>] haswell_crtc_enable+0x382/0x850 [i915]
[ 494.467196] [<ffffffffa04732db>] intel_atomic_commit_tail+0x85b/0x10c0 [i915]
[ 494.474387] [<ffffffff810a4a99>] ? __might_sleep+0x49/0x80
[ 494.479945] [<ffffffffa0473f81>] intel_atomic_commit+0x441/0x560 [i915]
[ 494.486619] [<ffffffff810c2560>] ? prepare_to_wait_event+0xf0/0xf0
[ 494.492867] [<ffffffffa00b5027>] drm_atomic_commit+0x37/0x60 [drm]
[ 494.499109] [<ffffffffa021a98d>] drm_atomic_helper_connector_dpms+0xed/0x1a0 [drm_kms_helper]
[ 494.507691] [<ffffffffa00a96e0>] drm_mode_obj_set_property_ioctl+0x220/0x230 [drm]
[ 494.515320] [<ffffffffa00a9720>] drm_mode_connector_property_set_ioctl+0x30/0x40 [drm]
[ 494.523293] [<ffffffffa009ad7c>] drm_ioctl+0x2dc/0x4d0 [drm]
[ 494.529018] [<ffffffffa00a96f0>] ? drm_mode_obj_set_property_ioctl+0x230/0x230 [drm]
[ 494.536815] [<ffffffff810a4a99>] ? __might_sleep+0x49/0x80
[ 494.542362] [<ffffffff81220e05>] do_vfs_ioctl+0x95/0x690
[ 494.547734] [<ffffffff810a4a99>] ? __might_sleep+0x49/0x80
[ 494.553281] [<ffffffff81221479>] SyS_ioctl+0x79/0x90
[ 494.558310] [<ffffffff8108ea0d>] ? SyS_rt_sigprocmask+0xad/0xd0
[ 494.564290] [<ffffffff8192e9b2>] entry_SYSCALL_64_fastpath+0x1a/0xa4
[ 494.570707] ---[ end trace cd3c88b5a1cf5acd ]---
[ 494.592290] ------------[ cut here ]------------
To reproduce:
git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp run job.yaml
Thanks,
Xiaolong
View attachment "config-4.8.0-rc1-00112-gc229bfb" of type "text/plain" (152615 bytes)
Download attachment "dmesg.xz" of type "application/octet-stream" (58892 bytes)
View attachment "piglit" of type "text/plain" (133109 bytes)
View attachment "job.yaml" of type "text/plain" (3227 bytes)
View attachment "reproduce" of type "text/plain" (21569 bytes)
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