12:06 p.m.
Greetings,
0day kernel testing robot got the below dmesg and the first bad commit is
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
commit 2ab8c5f8c0358010a19e82656fa4826a6a51d1e0
Author: Daniel Vetter <daniel.vetter(a)ffwll.ch>
AuthorDate: Wed Dec 14 00:08:08 2016 +0100
Commit: Daniel Vetter <daniel.vetter(a)ffwll.ch>
CommitDate: Sun Dec 18 14:33:51 2016 +0100
drm: Clean up connectors by unreferencing them
Only static connectors should be left at this point, and we should be
able to clean them out by simply dropping that last reference still
around from drm_connector_init.
If that leaves anything behind then we have a driver bug.
Doing the final cleanup this way also allows us to use
drm_connector_iter, removing the very last place where we walk
connector_list explicitly in drm core&helpers.
Reviewed-by: Harry Wentland <harry.wentland(a)amd.com>
Reviewed-by: Sean Paul <seanpaul(a)chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter(a)intel.com>
Link:
http://patchwork.freedesktop.org/patch/msgid/20161213230814.19598-8-danie...
c36a3254f7 drm: Convert all helpers to drm_connector_list_iter
2ab8c5f8c0 drm: Clean up connectors by unreferencing them
+-----------------------------------------------------------------------+------------+------------+
| | c36a3254f7 |
2ab8c5f8c0 |
+-----------------------------------------------------------------------+------------+------------+
| boot_successes | 92 | 0
|
| boot_failures | 0 | 48
|
| WARNING:at_drivers/gpu/drm/drm_mode_config.c:#drm_mode_config_cleanup | 0 | 48
|
| calltrace:bochs_init | 0 | 48
|
+-----------------------------------------------------------------------+------------+------------+
[ 21.723856] Console: switching to colour frame buffer device 128x48
[ 21.729355] bochs-drm 0000:00:02.0: fb0: bochsdrmfb frame buffer device
[ 21.755257] [drm] Initialized bochs-drm 1.0.0 20130925 for 0000:00:02.0 on minor 0
[ 21.761762] Console: switching to colour VGA+ 80x25
[ 21.795640] ------------[ cut here ]------------
[ 21.797398] WARNING: CPU: 0 PID: 1 at drivers/gpu/drm/drm_mode_config.c:424
drm_mode_config_cleanup+0x99/0x20c
[ 21.801086] CPU: 0 PID: 1 Comm: swapper Not tainted 4.9.0-rc8-01683-g2ab8c5f #1
[ 21.803731] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.9.3-20161025_171302-gandalf 04/01/2014
[ 21.807009] ffff88001e4ebbf8 ffffffff813762d0 ffff88001e4ebc38 ffffffff810a2a88
[ 21.810375] 000001a81e4ebbf8 ffff88001fb18008 ffff88001fb189e8 ffff88001fb189f0
[ 21.813719] 0000000000000001 0000000000000000 ffff88001e4ebc48 ffffffff810a2b50
[ 21.817119] Call Trace:
[ 21.818349] [<ffffffff813762d0>] dump_stack+0x19/0x1b
[ 21.820153] [<ffffffff810a2a88>] __warn+0xb1/0xcc
[ 21.821905] [<ffffffff810a2b50>] warn_slowpath_null+0x18/0x1a
[ 21.823954] [<ffffffff81566950>] drm_mode_config_cleanup+0x99/0x20c
[ 21.826109] [<ffffffff817bbd45>] bochs_kms_fini+0x1a/0x24
[ 21.828035] [<ffffffff817bae26>] bochs_unload+0x1e/0x46
[ 21.829948] [<ffffffff81551f28>] drm_dev_unregister+0x38/0xb0
[ 21.831959] [<ffffffff81551fe4>] drm_put_dev+0x44/0x4f
[ 21.833853] [<ffffffff817bad2c>] bochs_pci_remove+0x10/0x12
[ 21.835878] [<ffffffff813e0344>] pci_device_remove+0x46/0x8f
[ 21.837866] [<ffffffff817d937a>] driver_probe_device+0x202/0x439
[ 21.839999] [<ffffffff817d966c>] __driver_attach+0xbb/0xde
[ 21.841813] [<ffffffff817d95b1>] ? driver_probe_device+0x439/0x439
[ 21.843808] [<ffffffff817d774a>] bus_for_each_dev+0x5a/0x82
[ 21.845669] [<ffffffff817d98cc>] driver_attach+0x19/0x1b
[ 21.847412] [<ffffffff817d7fee>] bus_add_driver+0x134/0x218
[ 21.849191] [<ffffffff817d9f0f>] driver_register+0x83/0xba
[ 21.850859] [<ffffffff813e0219>] __pci_register_driver+0x5b/0x5e
[ 21.852653] [<ffffffff82805845>] ? nouveau_drm_init+0x1e2/0x1e2
[ 21.854457] [<ffffffff81553840>] drm_pci_init+0x47/0xc8
[ 21.856087] [<ffffffff82805845>] ? nouveau_drm_init+0x1e2/0x1e2
[ 21.857817] [<ffffffff827cb73a>] ? do_early_param+0x8f/0x8f
[ 21.859494] [<ffffffff8280585c>] bochs_init+0x17/0x19
[ 21.861231] [<ffffffff827cc0dc>] do_one_initcall+0x94/0x152
[ 21.864299] [<ffffffff810b9700>] ? parse_args+0x1e4/0x373
[ 21.866212] [<ffffffff827cb73a>] ? do_early_param+0x8f/0x8f
[ 21.867927] [<ffffffff827cc298>] kernel_init_freeable+0xfe/0x197
[ 21.869732] [<ffffffff81b999a1>] ? rest_init+0xb8/0xb8
[ 21.871334] [<ffffffff81b999aa>] kernel_init+0x9/0xeb
[ 21.872948] [<ffffffff81ba5535>] ret_from_fork+0x25/0x30
[ 21.874584] ---[ end trace c0673e7b7c7b335f ]---
[ 21.877475] [TTM] Finalizing pool allocator
git bisect start 546a214099cfdce7851266b0a288e45c11ebfc52 v4.9 --
git bisect good fb1d8e0e2c50f374cfc244564decfc3f0a336cb4 # 00:40 22+ 0 Merge
tag 'upstream-4.10-rc5' of git://git.infradead.org/linux-ubifs
git bisect good 77c43e3363fe4f05f4ee32b0ad89e69a46e8f410 # 00:54 22+ 0 Merge
remote-tracking branch 'asm-generic/master'
git bisect bad cd73d1675614a817ff3ea3fbf32e9d8251d7828b # 01:07 0- 12 Merge
remote-tracking branch 'kspp/for-next/kspp'
git bisect good 956c6cd9555cc6bc3d841a558c75ff779da07ca7 # 01:18 22+ 0 Merge
remote-tracking branch 'f2fs/dev'
git bisect good 6c3c3b71c0e14fe1ef08f9d5a56b9b17cbffe9ab # 01:43 22+ 0 Merge
remote-tracking branch 'pm/linux-next'
git bisect good 142c3794a59d179437534628bf5ae2b8bc43d857 # 02:03 22+ 0 Merge
remote-tracking branch 'bluetooth/master'
git bisect bad def0451540b29e2cac571d23f21339c1a3914625 # 02:16 0- 9 Merge
remote-tracking branch 'drm/drm-next'
git bisect good 8eb5a9b6f81c9c96475123a5eeebf2627326700e # 02:28 22+ 0 Merge
remote-tracking branch 'rdma/for-next'
git bisect good d7e5960db95570fdb5d4c7053e8c6c4a8a09f285 # 05:09 22+ 0 Merge
remote-tracking branch 'mtd/master'
git bisect good ad7b78d2e5105e46c577ab24aa7d565bfdaaa611 # 05:20 22+ 0 Merge
remote-tracking branch 'crypto/master'
git bisect bad 8bab1193c193fa1a695aa9bb881bb4cb0ea2ba85 # 08:08 0- 48
drm/i915: Convert i915_ggtt_view to use an anonymous union
git bisect good a402eae64d0ad12b1c4a411f250d6c161e67f623 # 08:35 22+ 0 Merge
tag 'v4.10-rc2' into drm-intel-next-queued
git bisect bad b5c3714fe8789745521d8351d75049b9c6a0d26b # 11:23 0- 27 drm/mm:
Convert to drm_printer
git bisect good 2407d1dc04789bfb2f39d248644981d2233feb0e # 14:15 20+ 0 drm: Fix
compilation warning caused by static inline forward declaration
git bisect bad 06df8ac682e6a00e6e32d105208953ca5323cc82 # 14:26 0- 31 drm:
kselftest for drm_mm_debug()
git bisect bad 4e98c378a137def586b3ffc8ac5a5852da2e0538 # 17:13 0- 48 drm/ttm:
use designated initializers
git bisect bad 188f78825de7b43593ae26cb86fecdf9ce5a4ac8 # 20:34 0- 48 drm: Fix
spelling of clock in drm_connector.h
git bisect good 15092c7a3cddb495649363a403f242edd2aaa6a5 # 23:16 22+ 0 drm:
Drop locking cargo-cult from drm_mode_config_init
git bisect bad 2ab8c5f8c0358010a19e82656fa4826a6a51d1e0 # 01:58 0- 37 drm:
Clean up connectors by unreferencing them
git bisect good c36a3254f7857f1ad9badbe3578ccc92be541a8e # 02:40 21+ 0 drm:
Convert all helpers to drm_connector_list_iter
# first bad commit: [2ab8c5f8c0358010a19e82656fa4826a6a51d1e0] drm: Clean up connectors by
unreferencing them
git bisect good c36a3254f7857f1ad9badbe3578ccc92be541a8e # 02:44 66+ 0 drm:
Convert all helpers to drm_connector_list_iter
# extra tests with CONFIG_DEBUG_INFO_REDUCED
# extra tests on HEAD of linux-devel/devel-catchup-201702200357
git bisect bad 546a214099cfdce7851266b0a288e45c11ebfc52 # 02:49 0- 35 0day
head guard for 'devel-catchup-201702200357'
# extra tests on tree/branch linux-next/master
git bisect bad b349d1bbdc9ea7df856ab3af395c03b858e29d48 # 05:39 0- 150 Add
linux-next specific files for 20170220
---
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