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Message-ID: <20161227011038.uet4fapmvqtsizg5@wfg-t540p.sh.intel.com>
Date: Tue, 27 Dec 2016 09:10:38 +0800
From: Fengguang Wu <fengguang.wu@...el.com>
To: Rob Herring <robh@...nel.org>, Jens Axboe <axboe@...com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
linux-kernel@...r.kernel.org, LKP <lkp@...org>
Subject: [blk_mq_register_disk] bea5b158ff BUG: Double free or freeing an
invalid pointer
Greetings,
Here is another bug exposed by patch
commit bea5b158ff0da9c7246ff391f754f5f38e34577a
Author: Rob Herring <robh@...nel.org>
AuthorDate: Thu Aug 11 10:20:58 2016 -0500
Commit: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CommitDate: Wed Aug 31 15:13:55 2016 +0200
driver core: add test of driver remove calls during probe
In recent discussions on ksummit-discuss[1], it was suggested to do a
sequence of probe, remove, probe for testing driver remove paths. This
adds a kconfig option for said test.
[1] https://lists.linuxfoundation.org/pipermail/ksummit-discuss/2016-August/003459.html
Suggested-by: Arnd Bergmann <arnd@...db.de>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Rob Herring <robh@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
+-------------------------------------------------+------------+------------+-------------+
| | cebf8fd169 | bea5b158ff | v4.9_122400 |
+-------------------------------------------------+------------+------------+-------------+
| boot_successes | 76 | 0 | 0 |
| boot_failures | 12 | 22 | 13 |
| BUG:kernel_reboot-without-warning_in_test_stage | 12 | | |
| calltrace:async_run_entry_fn | 0 | 22 | 13 |
| BUG:Double_free_or_freeing_an_invalid_pointer | 0 | 22 | 13 |
| calltrace:scsi_debug_init | 0 | 22 | 13 |
| WARNING:at_include/linux/kref.h:#kobject_get | 0 | 22 | 13 |
| BUG:KASAN:use-after-free_in | 0 | 22 | 10 |
| calltrace:init | 0 | 22 | 9 |
+-------------------------------------------------+------------+------------+-------------+
[ 16.231489] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, supports DPO and FUA
[ 16.256951] kobject (ffff88001ec08640): tried to init an initialized object, something is seriously wrong.
[ 16.260429] CPU: 0 PID: 6 Comm: kworker/u2:0 Not tainted 4.8.0-rc4-00003-gbea5b15 #1
[ 16.263455] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014
[ 16.266996] Workqueue: events_unbound async_run_entry_fn
[ 16.282095] 0000000000000000 ffff8800191a7bb0 ffffffffb70814cb ffff8800191a7bd8
[ 16.285505] ffffffffb7083d08 ffff88001ec08000 ffff88001f3fa200 ffff88001f3fa200
[ 16.288901] ffff8800191a7c10 ffffffffb706df61 ffff88001ec08000 ffff88001f3fa200
[ 16.292359] Call Trace:
[ 16.306703] [<ffffffffb70814cb>] dump_stack+0x19/0x1b
[ 16.308553] [<ffffffffb7083d08>] kobject_init+0x35/0xb3
[ 16.310402] [<ffffffffb706df61>] blk_mq_register_disk+0x3e/0x123
[ 16.312426] [<ffffffffb705ffdc>] blk_register_queue+0xd8/0x12a
[ 16.314399] [<ffffffffb707142b>] device_add_disk+0x4cc/0x677
[ 16.316342] [<ffffffffb7390019>] sd_probe_async+0x226/0x2fa
[ 16.318270] [<ffffffffb738fdf3>] ? sd_revalidate_disk+0x16b3/0x16b3
[ 16.333417] [<ffffffffb6cf7ed7>] async_run_entry_fn+0x74/0x18e
[ 16.335418] [<ffffffffb6ced4a1>] process_one_work+0x2c0/0x4c8
[ 16.337372] [<ffffffffb6ced41e>] ? process_one_work+0x23d/0x4c8
[ 16.339361] [<ffffffffb6ced9b9>] worker_thread+0x2d2/0x408
[ 16.341262] [<ffffffffb6ced6e7>] ? process_scheduled_works+0x3e/0x3e
[ 16.343330] [<ffffffffb6cf4b4e>] kthread+0x105/0x114
[ 16.358179] [<ffffffffb7be6b11>] ? _raw_spin_unlock_irq+0x27/0x3e
[ 16.360504] [<ffffffffb7be73ef>] ret_from_fork+0x1f/0x40
[ 16.362651] [<ffffffffb6cf4a49>] ? init_completion+0x2d/0x2d
[ 16.364894] kobject (ffff88001e909308): tried to init an initialized object, something is seriously wrong.
[ 16.368305] CPU: 0 PID: 6 Comm: kworker/u2:0 Not tainted 4.8.0-rc4-00003-gbea5b15 #1
[ 16.371523] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014
[ 16.375153] Workqueue: events_unbound async_run_entry_fn
[ 16.377279] 0000000000000000 ffff8800191a7bb0 ffffffffb70814cb ffff8800191a7bd8
[ 16.381022] ffffffffb7083d08 ffff88001ec08000 ffff88001f3fa200 ffff88001f3fa200
[ 16.384768] ffff8800191a7c10 ffffffffb706df87 ffff88001ec08000 ffff88001f3fa200
[ 16.388537] Call Trace:
[ 16.389920] [<ffffffffb70814cb>] dump_stack+0x19/0x1b
[ 16.391919] [<ffffffffb7083d08>] kobject_init+0x35/0xb3
[ 16.393956] [<ffffffffb706df87>] blk_mq_register_disk+0x64/0x123
[ 16.396187] [<ffffffffb705ffdc>] blk_register_queue+0xd8/0x12a
[ 16.398384] [<ffffffffb707142b>] device_add_disk+0x4cc/0x677
[ 16.400516] [<ffffffffb7390019>] sd_probe_async+0x226/0x2fa
[ 16.402637] [<ffffffffb738fdf3>] ? sd_revalidate_disk+0x16b3/0x16b3
[ 16.404920] [<ffffffffb6cf7ed7>] async_run_entry_fn+0x74/0x18e
[ 16.407099] [<ffffffffb6ced4a1>] process_one_work+0x2c0/0x4c8
[ 16.409251] [<ffffffffb6ced41e>] ? process_one_work+0x23d/0x4c8
[ 16.411465] [<ffffffffb6ced9b9>] worker_thread+0x2d2/0x408
[ 16.413563] [<ffffffffb6ced6e7>] ? process_scheduled_works+0x3e/0x3e
[ 16.415867] [<ffffffffb6cf4b4e>] kthread+0x105/0x114
[ 16.417847] [<ffffffffb7be6b11>] ? _raw_spin_unlock_irq+0x27/0x3e
[ 16.420090] [<ffffffffb7be73ef>] ret_from_fork+0x1f/0x40
[ 16.422180] [<ffffffffb6cf4a49>] ? init_completion+0x2d/0x2d
[ 16.424525] ==================================================================
[ 16.427671] BUG: Double free or freeing an invalid pointer
[ 16.429721] Unexpected shadow byte: 0xFB
[ 16.431429] CPU: 0 PID: 6 Comm: kworker/u2:0 Not tainted 4.8.0-rc4-00003-gbea5b15 #1
[ 16.434680] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014
[ 16.438491] Workqueue: events_unbound async_run_entry_fn
[ 16.440632] 0000000000000000 ffff8800191a79f8 ffffffffb70814cb ffff8800191a7a20
[ 16.444325] ffffffffb6dd2ca5 00000000fffffffb ffff880019001c80 ffff8800190a46f0
[ 16.447995] ffff8800191a7a50 ffffffffb6dd2d86 0000000000000296 ffff880019001c80
[ 16.451695] Call Trace:
[ 16.453069] [<ffffffffb70814cb>] dump_stack+0x19/0x1b
[ 16.455050] [<ffffffffb6dd2ca5>] kasan_object_err+0x1c/0x73
[ 16.457141] [<ffffffffb6dd2d86>] kasan_report_double_free+0x45/0x56
[ 16.459389] [<ffffffffb6dd243f>] kasan_slab_free+0x38/0x8f
[ 16.461464] [<ffffffffb6dcdf31>] slab_free_freelist_hook+0x88/0xa0
[ 16.463687] [<ffffffffb6dd0ea1>] kfree+0x64/0xef
[ 16.465571] [<ffffffffb6d9fc41>] ? kfree_const+0x1b/0x1d
[ 16.467609] [<ffffffffb6d9fc41>] kfree_const+0x1b/0x1d
[ 16.469813] [<ffffffffb7083c7b>] kobject_set_name_vargs+0x9f/0xb5
[ 16.472363] [<ffffffffb7084826>] kobject_add+0x80/0xbc
[ 16.474649] [<ffffffffb708526e>] ? kobject_uevent_env+0xaa/0x671
[ 16.477186] [<ffffffffb706dc9c>] blk_mq_register_hctx+0x75/0xf4
[ 16.479686] [<ffffffffb706dffc>] ? blk_mq_register_disk+0xd9/0x123
[ 16.482285] [<ffffffffb706e005>] blk_mq_register_disk+0xe2/0x123
[ 16.484822] [<ffffffffb705ffdc>] blk_register_queue+0xd8/0x12a
[ 16.487320] [<ffffffffb707142b>] device_add_disk+0x4cc/0x677
[ 16.489754] [<ffffffffb7390019>] sd_probe_async+0x226/0x2fa
[ 16.492177] [<ffffffffb738fdf3>] ? sd_revalidate_disk+0x16b3/0x16b3
[ 16.494780] [<ffffffffb6cf7ed7>] async_run_entry_fn+0x74/0x18e
[ 16.497259] [<ffffffffb6ced4a1>] process_one_work+0x2c0/0x4c8
[ 16.499716] [<ffffffffb6ced41e>] ? process_one_work+0x23d/0x4c8
[ 16.502224] [<ffffffffb6ced9b9>] worker_thread+0x2d2/0x408
[ 16.504608] [<ffffffffb6ced6e7>] ? process_scheduled_works+0x3e/0x3e
[ 16.507234] [<ffffffffb6cf4b4e>] kthread+0x105/0x114
[ 16.509475] [<ffffffffb7be6b11>] ? _raw_spin_unlock_irq+0x27/0x3e
[ 16.512025] [<ffffffffb7be73ef>] ret_from_fork+0x1f/0x40
[ 16.514371] [<ffffffffb6cf4a49>] ? init_completion+0x2d/0x2d
[ 16.516795] Object at ffff8800190a46f0, in cache kmalloc-8 size: 8
[ 16.519335] Allocated:
[ 16.520806] PID = 6
[ 16.522210] [<ffffffffb6c2a019>] save_stack_trace+0x25/0x40
[ 16.524733] [<ffffffffb6dd1e9b>] save_stack+0x46/0xce
[ 16.527116] [<ffffffffb6dd252f>] kasan_kmalloc+0x99/0xa8
[ 16.529564] [<ffffffffb6dd2550>] kasan_slab_alloc+0x12/0x14
[ 16.532094] [<ffffffffb6dcd60a>] slab_post_alloc_hook+0x38/0x45
[ 16.534706] [<ffffffffb6dd1cd8>] __kmalloc_track_caller+0xe4/0xf2
[ 16.537375] [<ffffffffb709469a>] kvasprintf+0x54/0xa9
[ 16.539761] [<ffffffffb7094794>] kvasprintf_const+0xa5/0xae
[ 16.542287] [<ffffffffb7083c18>] kobject_set_name_vargs+0x3c/0xb5
[ 16.544960] [<ffffffffb7084826>] kobject_add+0x80/0xbc
[ 16.547373] [<ffffffffb706dc9c>] blk_mq_register_hctx+0x75/0xf4
[ 16.549998] [<ffffffffb706e005>] blk_mq_register_disk+0xe2/0x123
[ 16.552657] [<ffffffffb705ffdc>] blk_register_queue+0xd8/0x12a
[ 16.555280] [<ffffffffb707142b>] device_add_disk+0x4cc/0x677
[ 16.557938] [<ffffffffb7390019>] sd_probe_async+0x226/0x2fa
[ 16.560630] [<ffffffffb6cf7ed7>] async_run_entry_fn+0x74/0x18e
[ 16.563328] [<ffffffffb6ced4a1>] process_one_work+0x2c0/0x4c8
[ 16.565914] [<ffffffffb6ced9b9>] worker_thread+0x2d2/0x408
[ 16.568420] [<ffffffffb6cf4b4e>] kthread+0x105/0x114
[ 16.570767] [<ffffffffb7be73ef>] ret_from_fork+0x1f/0x40
[ 16.573072] Freed:
[ 16.574312] PID = 1
[ 16.575684] [<ffffffffb6c2a019>] save_stack_trace+0x25/0x40
[ 16.578237] [<ffffffffb6dd1e9b>] save_stack+0x46/0xce
[ 16.580640] [<ffffffffb6dd2474>] kasan_slab_free+0x6d/0x8f
[ 16.583162] [<ffffffffb6dcdf31>] slab_free_freelist_hook+0x88/0xa0
[ 16.585873] [<ffffffffb6dd0ea1>] kfree+0x64/0xef
[ 16.588152] [<ffffffffb6d9fc41>] kfree_const+0x1b/0x1d
[ 16.590568] [<ffffffffb7083fcb>] kobject_release+0x78/0x81
[ 16.593087] [<ffffffffb7083e3d>] kobject_put+0x49/0x4c
[ 16.595500] [<ffffffffb706de91>] __blk_mq_unregister_disk+0x102/0x15d
[ 16.598308] [<ffffffffb706df03>] blk_mq_unregister_disk+0x17/0x1e
[ 16.600994] [<ffffffffb7060082>] blk_unregister_queue+0x54/0xa0
[ 16.603634] [<ffffffffb7071f55>] del_gendisk+0x16e/0x255
[ 16.606109] [<ffffffffb738d191>] sd_remove+0x9e/0x106
[ 16.608492] [<ffffffffb72a3bb8>] driver_probe_device+0x1f4/0x433
[ 16.611149] [<ffffffffb72a3f82>] __device_attach_driver+0xb7/0xd3
[ 16.613494] [<ffffffffb72a1aab>] bus_for_each_drv+0xb7/0xbc
[ 16.615567] [<ffffffffb72a38a7>] __device_attach+0xb9/0x120
[ 16.617636] [<ffffffffb72a416e>] device_initial_probe+0xe/0x10
[ 16.619777] [<ffffffffb72a1d7b>] bus_probe_device+0x55/0xf9
[ 16.621839] [<ffffffffb729f348>] device_add+0x5a4/0x730
[ 16.623825] [<ffffffffb7331020>] scsi_sysfs_add_sdev+0x162/0x2eb
[ 16.625978] [<ffffffffb732df87>] scsi_probe_and_add_lun+0xeae/0xf8d
[ 16.628203] [<ffffffffb732e544>] __scsi_scan_target+0x9c/0x20e
[ 16.630325] [<ffffffffb732e71d>] scsi_scan_channel+0x67/0x75
[ 16.632543] [<ffffffffb732eb3a>] scsi_scan_host_selected+0x156/0x1c8
[ 16.634788] [<ffffffffb732ec82>] do_scsi_scan_host+0xd6/0xdf
[ 16.636866] [<ffffffffb732f0c0>] scsi_scan_host+0x234/0x248
[ 16.638925] [<ffffffffb73a050b>] sdebug_driver_probe+0x2ef/0x2ff
[ 16.641096] [<ffffffffb72a3b64>] driver_probe_device+0x1a0/0x433
[ 16.643258] [<ffffffffb72a3f82>] __device_attach_driver+0xb7/0xd3
[ 16.648042] [<ffffffffb72a1aab>] bus_for_each_drv+0xb7/0xbc
[ 16.650111] [<ffffffffb72a38a7>] __device_attach+0xb9/0x120
[ 16.668921] [<ffffffffb72a416e>] device_initial_probe+0xe/0x10
[ 16.671077] [<ffffffffb72a1d7b>] bus_probe_device+0x55/0xf9
[ 16.673142] [<ffffffffb729f348>] device_add+0x5a4/0x730
[ 16.675130] [<ffffffffb729f4e9>] device_register+0x15/0x18
[ 16.677173] [<ffffffffb73a47e5>] sdebug_add_adapter+0x179/0x231
[ 16.679314] [<ffffffffb8449902>] scsi_debug_init+0x78a/0x820
[ 16.681404] [<ffffffffb84072a2>] do_one_initcall+0x98/0x124
[ 16.685969] [<ffffffffb84074b3>] kernel_init_freeable+0x185/0x220
[ 16.688164] [<ffffffffb7be0660>] kernel_init+0xc/0x108
[ 16.690137] [<ffffffffb7be73ef>] ret_from_fork+0x1f/0x40
[ 16.692149] ==================================================================
[ 16.697206] Disabling lock debugging due to kernel taint
[ 16.699412] ==================================================================
[ 16.702312] BUG: Double free or freeing an invalid pointer
[ 16.704236] Unexpected shadow byte: 0xFB
[ 16.705809] CPU: 0 PID: 6 Comm: kworker/u2:0 Tainted: G B 4.8.0-rc4-00003-gbea5b15 #1
[ 16.711927] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014
[ 16.715932] Workqueue: events_unbound async_run_entry_fn
[ 16.718375] 0000000000000000 ffff8800191a79f8 ffffffffb70814cb ffff8800191a7a20
[ 16.722505] ffffffffb6dd2ca5 00000000fffffffb ffff880019001c80 ffff8800190a46c0
[ 16.726502] ffff8800191a7a50 ffffffffb6dd2d86 0000000000000296 ffff880019001c80
[ 16.729274] Call Trace:
[ 16.730398] [<ffffffffb70814cb>] dump_stack+0x19/0x1b
[ 16.731827] [<ffffffffb6dd2ca5>] kasan_object_err+0x1c/0x73
[ 16.733596] [<ffffffffb6dd2d86>] kasan_report_double_free+0x45/0x56
[ 16.735298] [<ffffffffb6dd243f>] kasan_slab_free+0x38/0x8f
[ 16.737000] [<ffffffffb6dcdf31>] slab_free_freelist_hook+0x88/0xa0
[ 16.738666] [<ffffffffb6dd0ea1>] kfree+0x64/0xef
[ 16.740695] [<ffffffffb6d9fc41>] ? kfree_const+0x1b/0x1d
[ 16.742947] [<ffffffffb6d9fc41>] kfree_const+0x1b/0x1d
[ 16.744908] [<ffffffffb7083c7b>] kobject_set_name_vargs+0x9f/0xb5
[ 16.747089] [<ffffffffb7084826>] kobject_add+0x80/0xbc
[ 16.749029] [<ffffffffb708526e>] ? kobject_uevent_env+0xaa/0x671
[ 16.751189] [<ffffffffb706dd06>] blk_mq_register_hctx+0xdf/0xf4
[ 16.753289] [<ffffffffb706e005>] blk_mq_register_disk+0xe2/0x123
[ 16.755359] [<ffffffffb705ffdc>] blk_register_queue+0xd8/0x12a
[ 16.757379] [<ffffffffb707142b>] device_add_disk+0x4cc/0x677
[ 16.759366] [<ffffffffb7390019>] sd_probe_async+0x226/0x2fa
[ 16.761330] [<ffffffffb738fdf3>] ? sd_revalidate_disk+0x16b3/0x16b3
[ 16.763447] [<ffffffffb6cf7ed7>] async_run_entry_fn+0x74/0x18e
[ 16.765512] [<ffffffffb6ced4a1>] process_one_work+0x2c0/0x4c8
[ 16.767905] [<ffffffffb6ced41e>] ? process_one_work+0x23d/0x4c8
[ 16.770411] [<ffffffffb6ced9b9>] worker_thread+0x2d2/0x408
[ 16.772781] [<ffffffffb6ced6e7>] ? process_scheduled_works+0x3e/0x3e
[ 16.775395] [<ffffffffb6cf4b4e>] kthread+0x105/0x114
[ 16.777624] [<ffffffffb7be6b11>] ? _raw_spin_unlock_irq+0x27/0x3e
[ 16.780154] [<ffffffffb7be73ef>] ret_from_fork+0x1f/0x40
[ 16.782452] [<ffffffffb6cf4a49>] ? init_completion+0x2d/0x2d
[ 16.784578] Object at ffff8800190a46c0, in cache kmalloc-8 size: 8
[ 16.786795] Allocated:
[ 16.788095] PID = 6
[ 16.789325] [<ffffffffb6c2a019>] save_stack_trace+0x25/0x40
[ 16.791540] [<ffffffffb6dd1e9b>] save_stack+0x46/0xce
[ 16.793848] [<ffffffffb6dd252f>] kasan_kmalloc+0x99/0xa8
[ 16.796289] [<ffffffffb6dd2550>] kasan_slab_alloc+0x12/0x14
[ 16.798810] [<ffffffffb6dcd60a>] slab_post_alloc_hook+0x38/0x45
[ 16.801393] [<ffffffffb6dd1cd8>] __kmalloc_track_caller+0xe4/0xf2
[ 16.804070] [<ffffffffb709469a>] kvasprintf+0x54/0xa9
git bisect start v4.9 v4.8 --
git bisect bad 9fe68cad6e74967b88d0c6aeca7d9cd6b6e91942 # 10:11 0- 3 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
git bisect bad 5fa0eb0b4d4780fbd6d8a09850cc4fd539e9fe65 # 10:22 0- 1 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect bad d8ea757b25ec82687c497fc90aa83f9bcea24b5b # 10:52 0- 10 Merge tag 'xtensa-20161005' of git://github.com/jcmvbkbc/linux-xtensa
git bisect bad e6445f52d9c8b0e6557a45fa7d0e8e088d430a8c # 11:15 0- 9 Merge tag 'usb-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
git bisect good 1a4a2bc460721bc8f91e4c1294d39b38e5af132f # 11:26 22+ 0 Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect good 49deffe0b0e4c2030696c7a6fd680bacf4761069 # 12:01 20+ 3 Merge tag 'arc-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
git bisect good 597f03f9d133e9837d00965016170271d4f87dcf # 12:25 21+ 0 Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect bad 9929780e86854833e649b39b290b5fe921eb1701 # 13:08 0- 13 Merge tag 'driver-core-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
git bisect good 7a53eea1f7b527fd3b6d7ca992914840981afe99 # 14:13 20+ 0 Merge tag 'char-misc-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
git bisect bad 775115c06091fcfa1189a50aca488fa596839617 # 14:26 0- 22 drivers/base dmam_declare_coherent_memory leaks
git bisect bad 426bc8e789f8ac84270b196191904d347586032f # 14:37 0- 3 base: soc: make it explicitly non-modular
git bisect bad bea5b158ff0da9c7246ff391f754f5f38e34577a # 14:47 0- 10 driver core: add test of driver remove calls during probe
git bisect good cebf8fd16900fdfd58c0028617944f808f97fe50 # 15:00 20+ 3 driver core: fix race between creating/querying glue dir and its cleanup
# first bad commit: [bea5b158ff0da9c7246ff391f754f5f38e34577a] driver core: add test of driver remove calls during probe
git bisect good cebf8fd16900fdfd58c0028617944f808f97fe50 # 15:06 67+ 12 driver core: fix race between creating/querying glue dir and its cleanup
# extra tests with CONFIG_DEBUG_INFO_REDUCED
git bisect bad bea5b158ff0da9c7246ff391f754f5f38e34577a # 15:16 0- 1 driver core: add test of driver remove calls during probe
# extra tests on HEAD of linux-devel/devel-hourly-2016122400
git bisect bad 8eb25c4694b925e2998ed795d6ea365439adab6c # 15:16 0- 13 0day head guard for 'devel-hourly-2016122400'
# extra tests on tree/branch linus/master
git bisect bad 6ac3bb167fed0b3d02b4fd3daa0d819841d5f6f4 # 15:25 0- 1 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
# extra tests on tree/branch linus/master
git bisect bad 6ac3bb167fed0b3d02b4fd3daa0d819841d5f6f4 # 15:25 0- 1 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
# extra tests on tree/branch linux-next/master
git bisect bad 968481a1ffee88cafc836feb83fb23d1738e8238 # 15:34 0- 5 Add linux-next specific files for 20161223
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0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/lkp Intel Corporation
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