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Message-ID: <20140319073431.GA32427@localhost>
Date: Wed, 19 Mar 2014 15:34:31 +0800
From: Fengguang Wu <fengguang.wu@...el.com>
To: Daniel Vetter <daniel.vetter@...ll.ch>
Cc: Alex Deucher <alexander.deucher@....com>,
dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [cirrus_init] WARNING: CPU: 0 PID: 1 at
drivers/gpu/drm/drm_crtc.c:94 drm_warn_on_modeset_not_all_locked()
Hi Daniel,
FYI, this patch triggers a new warning (in addition to some other old warnings).
git://people.freedesktop.org/~danvet/drm drm-docs
commit 62ff94a5492175759546f8bc61383189d6b49122
Author: Daniel Vetter <daniel.vetter@...ll.ch>
AuthorDate: Thu Jan 23 22:18:47 2014 +0100
Commit: Daniel Vetter <daniel.vetter@...ll.ch>
CommitDate: Thu Mar 13 12:48:47 2014 +0100
drm/crtc-helper: remove LOCKING from kerneldoc
- It yells.
- WARNing about incorrect locking is harder to ignore, so better
than kerneldoc.
- Since those have been written per-crtc locks were added ...
So remove them and replace them by appropriate WARNs.
Reviewed-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Daniel Vetter <daniel.vetter@...ll.ch>
===================================================
PARENT COMMIT NOT CLEAN. LOOK OUT FOR WRONG BISECT!
===================================================
+------------------------------------------------------------------------------------------------+------------+------------+------------+
| | 9fd93784f1 | 62ff94a549 | ac96a27ebf |
+------------------------------------------------------------------------------------------------+------------+------------+------------+
| boot_successes | 0 | 0 | 0 |
| boot_failures | 80 | 20 | 19 |
| WARNING:CPU:PID:at_drivers/gpu/drm/drm_modes.c:drm_mode_probed_add() | 80 | 20 | 19 |
| WARNING:CPU:PID:at_drivers/gpu/drm/drm_modes.c:drm_mode_connector_list_update() | 80 | 20 | 19 |
| WARNING:CPU:PID:at_kernel/events/core.c:perf_swevent_add() | 1 | | |
| backtrace:drm_fb_helper_initial_config | 80 | 20 | 19 |
| backtrace:cirrus_fbdev_init | 80 | 20 | 19 |
| backtrace:cirrus_modeset_init | 80 | 20 | 19 |
| backtrace:__pci_register_driver | 80 | 20 | 19 |
| backtrace:drm_pci_init | 80 | 20 | 19 |
| backtrace:cirrus_init | 80 | 20 | 19 |
| backtrace:kernel_init_freeable | 80 | 20 | 19 |
| WARNING:CPU:PID:at_drivers/gpu/drm/drm_crtc.c:drm_warn_on_modeset_not_all_locked() | 0 | 20 | 19 |
| WARNING:CPU:PID:at_drivers/gpu/drm/drm_crtc_helper.c:drm_helper_encoder_in_use() | 0 | 20 | 19 |
| WARNING:CPU:PID:at_drivers/gpu/drm/drm_crtc_helper.c:drm_helper_crtc_in_use() | 0 | 20 | 19 |
| WARNING:CPU:PID:at_drivers/gpu/drm/drm_crtc_helper.c:drm_helper_probe_single_connector_modes() | 0 | 20 | 19 |
| backtrace:drm_helper_disable_unused_functions | 0 | 20 | 19 |
+------------------------------------------------------------------------------------------------+------------+------------+------------+
[ 2.954664] [TTM] Initializing pool allocator
[ 2.955049] [TTM] Initializing DMA pool allocator
[ 2.955512] ------------[ cut here ]------------
[ 2.955944] WARNING: CPU: 0 PID: 1 at drivers/gpu/drm/drm_crtc.c:94 drm_warn_on_modeset_not_all_locked+0x3c/0x61()
[ 2.957017] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.14.0-rc7-00703-gac96a27 #103
[ 2.957683] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2.958187] 00000000 00000000 7803fcd4 79cea3b4 00000000 7803fd04 79055a84 7a04f050
[ 2.958965] 00000000 00000001 7a0c8835 0000005e 794f37b2 794f37b2 781c7000 869f3800
[ 2.959733] 869f39cc 7803fd14 79055b39 00000009 00000000 7803fd28 794f37b2 869f4180
[ 2.960514] Call Trace:
[ 2.960759] [<79cea3b4>] dump_stack+0x48/0x60
[ 2.961156] [<79055a84>] warn_slowpath_common+0x6f/0x86
[ 2.961619] [<794f37b2>] ? drm_warn_on_modeset_not_all_locked+0x3c/0x61
[ 2.962196] [<794f37b2>] ? drm_warn_on_modeset_not_all_locked+0x3c/0x61
[ 2.962777] [<79055b39>] warn_slowpath_null+0x1d/0x1f
[ 2.963217] [<794f37b2>] drm_warn_on_modeset_not_all_locked+0x3c/0x61
[ 2.963787] [<794e5815>] drm_helper_disable_unused_functions+0xd/0xcf
[ 2.964357] [<7961ba05>] cirrus_fbdev_init+0x61/0x7c
[ 2.964802] [<7961b314>] cirrus_modeset_init+0x13f/0x188
[ 2.965270] [<7961a686>] cirrus_driver_load+0x89/0xd4
[ 2.965723] [<794f012f>] drm_dev_register+0x67/0xc9
[ 2.966154] [<794f1aa6>] drm_get_pci_dev+0xd7/0x18a
[ 2.966589] [<79d01f3c>] ? mutex_unlock+0x8/0xa
[ 2.966997] [<7961b40b>] cirrus_pci_probe+0x7d/0x89
[ 2.967440] [<793f03a1>] pci_device_probe+0x44/0x85
[ 2.967886] [<791234fd>] ? sysfs_create_link+0x27/0x2f
[ 2.968341] [<796cf0f4>] driver_probe_device+0x88/0x17a
[ 2.968813] [<793f0222>] ? pci_match_device+0x97/0x9d
[ 2.969257] [<796cf259>] __driver_attach+0x47/0x63
[ 2.969687] [<796cdf74>] bus_for_each_dev+0x55/0x5f
[ 2.970132] [<796cf02d>] driver_attach+0x17/0x19
[ 2.970544] [<796cf212>] ? __device_attach+0x2c/0x2c
[ 2.970989] [<796ce566>] bus_add_driver+0xd1/0x198
[ 2.971414] [<796cf807>] driver_register+0x7a/0xae
[ 2.971845] [<793f027b>] __pci_register_driver+0x2d/0x30
[ 2.972324] [<7a2f95a9>] ? mgag200_init+0x23/0x23
[ 2.972748] [<794f1bb5>] drm_pci_init+0x5c/0xd3
[ 2.973143] [<7a2f95a9>] ? mgag200_init+0x23/0x23
[ 2.973562] [<7a2f95c4>] cirrus_init+0x1b/0x23
[ 2.973962] [<7a2cca6c>] do_one_initcall+0x82/0x10b
[ 2.974391] [<793bf7e3>] ? strlen+0xd/0x17
[ 2.974760] [<7a2cc430>] ? repair_env_string+0x12/0x51
[ 2.975222] [<79066f76>] ? parse_args+0x168/0x224
[ 2.975641] [<7a2ccc43>] kernel_init_freeable+0x14e/0x1e5
[ 2.976115] [<7a2cc41e>] ? do_early_param+0x78/0x78
[ 2.976546] [<79ce1ad4>] kernel_init+0xb/0xc6
[ 2.976941] [<79d03b77>] ret_from_kernel_thread+0x1b/0x28
[ 2.977415] [<79ce1ac9>] ? rest_init+0x6d/0x6d
[ 2.977818] ---[ end trace b419620760c3adbd ]---
[ 2.978217] ------------[ cut here ]------------
git bisect start ac96a27ebfe1ac1631a679f24991143c124127b5 dcb99fd9b08cfe1afe426af4d8d3cbc429190f15 --
git bisect bad 836bf362b72114e5d4cdb6895fbd26e9a415e854 # 23:32 0- 14 Merge 'drm-intel/drm-intel-nightly' into devel-roam-i386-201403182248
git bisect good 5f85f4962e667de0adda472a5f9dee73f9815ec5 # 00:07 20+ 2 0day base guard for 'devel-roam-i386-201403182248'
git bisect good e9dbd2b20201b49b04476d2e5763faa822967913 # 00:27 20+ 1 drm/i915: Fix forcewake counts for gen8
git bisect good a1a8bdf355e75037538aaa602baeeda447da8346 # 00:52 20+ 1 Merge remote-tracking branch 'origin/drm-intel-fixes' into drm-intel-nightly
git bisect good 3a05700dc874f377b13e4368550e8c7228826ab4 # 00:57 20+ 1 drm/doc: Update copyright
git bisect bad 978c6050165bba52eab7ef3581d447eb215def77 # 01:04 0- 1 Merge branch 'drm-docs' of ssh://people.freedesktop.org/~danvet/drm into drm-next
git bisect good e40d641099213145a034981e646dc2180a488152 # 01:14 20+ 1 Merge branch 'drm-minor' of git://people.freedesktop.org/~dvdhrm/linux into drm-next
git bisect good 3e70292cd4a002cd799a1cd4115286cba3933d6d # 01:23 20+ 20 drm/modes: drop maxPitch from drm_mode_validate_size
git bisect bad 00d762cbd1fb5df63bf005ffa1c8d0275f79890e # 01:30 0- 3 drm: drop error code for drm_helper_resume_force_mode
git bisect good 9ee984a5f735d6afc6f889e179b2e4b1f2ec335f # 01:40 20+ 20 drm/doc: Fix misplaced </para>
git bisect bad 62ff94a5492175759546f8bc61383189d6b49122 # 02:03 0- 2 drm/crtc-helper: remove LOCKING from kerneldoc
git bisect good 9fd93784f1719532d796914935f87cc1c6afd687 # 02:26 20+ 20 drm: remove return value from drm_helper_mode_fill_fb_struct
# first bad commit: [62ff94a5492175759546f8bc61383189d6b49122] drm/crtc-helper: remove LOCKING from kerneldoc
git bisect good 9fd93784f1719532d796914935f87cc1c6afd687 # 02:44 60+ 80 drm: remove return value from drm_helper_mode_fill_fb_struct
git bisect bad ac96a27ebfe1ac1631a679f24991143c124127b5 # 02:44 0- 19 0day head guard for 'devel-roam-i386-201403182248'
git bisect good 9a15c944f76cffa5581959cefe709c7c4ea26994 # 03:14 60+ 5 Merge branch 'for-linus' of git://git.kernel.dk/linux-block
git bisect good 3bd688c0bfa306c861da2311afbaa4413768dc7c # 04:00 60+ 3 Add linux-next specific files for 20140318
Thanks,
Fengguang
View attachment "dmesg-yocto-cairo-10:20140318230122:i386-randconfig-r0-0318:3.14.0-rc7-00703-gac96a27:103" of type "text/plain" (148507 bytes)
Download attachment "i386-randconfig-r0-0318-ac96a27ebfe1ac1631a679f24991143c124127b5-WARNING:---at----drm_warn_on_modeset_not_all_locked+-x-113476.log" of type "application/octet-stream" (40214 bytes)
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