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Date: Tue, 28 Feb 2017 12:24:03 +0800
From: Fengguang Wu <fengguang.wu@...el.com>
To: Linus Walleij <linus.walleij@...aro.org>
Cc: Rob Herring <robh+dt@...nel.org>,
Frank Rowand <frowand.list@...il.com>,
devicetree@...r.kernel.org,
Linus Torvalds <torvalds@...ux-foundation.org>,
LKML <linux-kernel@...r.kernel.org>, linux-gpio@...r.kernel.org,
LKP <lkp@...org>
Subject: 289b7bfd48 BUG: KASAN: slab-out-of-bounds in of_device_uevent at
addr ffff880012049289
Hi Linus Walleij,
I'm not sure if this is a good bisect since the merged gpio branch
suffers from another early hang problem which could hide the KASAN
BUG. So also OF people are also included in the loop.
The attached reproduce-* script may easily reproduce the bug.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
commit 289b7bfd483c8ca3dfde92d7e19a8b70e0b81248
Merge: 183c948 9b8e3ec
Author: Linus Torvalds <torvalds@...ux-foundation.org>
AuthorDate: Sat Apr 9 13:28:50 2016 -0700
Commit: Linus Torvalds <torvalds@...ux-foundation.org>
CommitDate: Sat Apr 9 13:28:50 2016 -0700
Merge tag 'gpio-v4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Here is a set of four GPIO fixes. The two fixes to the core are
serious as they are regressing minor architectures.
Core fixes:
- Defer GPIO device setup until after gpiolib is initialized.
It turns out that a few very tightly integrated GPIO platform
drivers initialize so early (befor core_initcall()) so that the
gpiolib isn't even initialized itself. That limits what the
library can do, and we cannot reference uninitialized fields until
later.
Defer some of the initialization until right after the gpiolib is
initialized in these (rare) cases.
- As a consequence: do not use devm_* resources when allocating the
states in the initial set-up of the gpiochip.
Driver fixes:
- In ACPI retrieveal: ignore GpioInt when looking for output GPIOs.
- Fix legacy builds on the PXA without a backing pin controller.
- Use correct datatype on pca953x register writes"
* tag 'gpio-v4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: pca953x: Use correct u16 value for register word write
gpiolib: Defer gpio device setup until after gpiolib initialization
gpiolib: Do not use devm functions when registering gpio chip
gpio: pxa: fix legacy non pinctrl aware builds
gpio / ACPI: ignore GpioInt() GPIOs when requesting GPIO_OUT_*
183c948a3c Merge tag 'tty-4.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
9b8e3ec343 gpio: pca953x: Use correct u16 value for register word write
289b7bfd48 Merge tag 'gpio-v4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
+-------------------------------------------------+------------+------------+------------+
| | 183c948a3c | 9b8e3ec343 | 289b7bfd48 |
+-------------------------------------------------+------------+------------+------------+
| boot_successes | 20 | 0 | 0 |
| boot_failures | 68 | 88 | 22 |
| BUG:kernel_hang_in_test_stage | 41 | | |
| BUG:kernel_in_stage | 17 | | |
| BUG:kernel_reboot-without-warning_in_boot_stage | 10 | | |
| BUG:kernel_hang_in_boot_stage | 0 | 88 | |
| BUG:KASAN:slab-out-of-bounds | 0 | 0 | 22 |
| calltrace:of_platform_notify | 0 | 0 | 22 |
| calltrace:of_unittest | 0 | 0 | 22 |
| calltrace:of_i2c_notify | 0 | 0 | 22 |
+-------------------------------------------------+------------+------------+------------+
[ 42.299943] /testcase-data/phandle-tests/consumer-a: arguments longer than property
[ 42.309772] irq: no irq domain found for /testcase-data/interrupts/intc0 !
[ 42.309772] irq: no irq domain found for /testcase-data/interrupts/intc0 !
[ 42.398436] ==================================================================
[ 42.398436] ==================================================================
[ 42.400834] BUG: KASAN: slab-out-of-bounds in of_device_uevent+0x456/0x607 at addr ffff880012049289
[ 42.400834] BUG: KASAN: slab-out-of-bounds in of_device_uevent+0x456/0x607 at addr ffff880012049289
[ 42.403809] Read of size 1 by task swapper/1
[ 42.403809] Read of size 1 by task swapper/1
[ 42.405232] CPU: 0 PID: 1 Comm: swapper Not tainted 4.6.0-rc2-00323-g289b7bf #1
[ 42.405232] CPU: 0 PID: 1 Comm: swapper Not tainted 4.6.0-rc2-00323-g289b7bf #1
[ 42.407620] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014
[ 42.407620] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014
[ 42.410944] 0000000000000000
[ 42.410944] 0000000000000000 ffff8800001b7278 ffff8800001b7278 ffffffff81906b23 ffffffff81906b23 ffff8800001b72e8 ffff8800001b72e8
[ 42.413405] ffffffff81585315
[ 42.413405] ffffffff81585315 ffff880012049280 ffff880012049280 0000000000000246 0000000000000246 ffffffff828b0b51 ffffffff828b0b51
[ 42.415967] ffffffff83425c20
[ 42.415967] ffffffff83425c20 0000000000000000 0000000000000000 ffff880012049280 ffff880012049280 1ffffffff083f101 1ffffffff083f101
[ 42.418461] Call Trace:
[ 42.418461] Call Trace:
[ 42.419320] [<ffffffff81906b23>] dump_stack+0x1e/0x20
[ 42.419320] [<ffffffff81906b23>] dump_stack+0x1e/0x20
[ 42.421039] [<ffffffff81585315>] kasan_report+0x3a7/0x650
[ 42.421039] [<ffffffff81585315>] kasan_report+0x3a7/0x650
[ 42.422867] [<ffffffff828b0b51>] ? of_find_property+0x52/0x5d
[ 42.422867] [<ffffffff828b0b51>] ? of_find_property+0x52/0x5d
[ 42.424788] [<ffffffff815855d7>] __asan_report_load1_noabort+0x19/0x1b
[ 42.424788] [<ffffffff815855d7>] __asan_report_load1_noabort+0x19/0x1b
[ 42.426989] [<ffffffff828bb394>] of_device_uevent+0x456/0x607
[ 42.426989] [<ffffffff828bb394>] of_device_uevent+0x456/0x607
[ 42.428898] [<ffffffff828baf3e>] ? of_device_get_modalias+0x730/0x730
[ 42.428898] [<ffffffff828baf3e>] ? of_device_get_modalias+0x730/0x730
[ 42.431051] [<ffffffff813b0a4f>] ? __sanitizer_cov_trace_pc+0x5/0xbb
[ 42.431051] [<ffffffff813b0a4f>] ? __sanitizer_cov_trace_pc+0x5/0xbb
[ 42.433156] [<ffffffff81e24597>] dev_uevent+0x6d5/0xbd7
[ 42.433156] [<ffffffff81e24597>] dev_uevent+0x6d5/0xbd7
[ 42.434906] [<ffffffff81e23ec2>] ? device_get_devnode+0x5e2/0x5e2
[ 42.434906] [<ffffffff81e23ec2>] ? device_get_devnode+0x5e2/0x5e2
[ 42.436955] [<ffffffff813b0a4f>] ? __sanitizer_cov_trace_pc+0x5/0xbb
[ 42.436955] [<ffffffff813b0a4f>] ? __sanitizer_cov_trace_pc+0x5/0xbb
[ 42.439113] [<ffffffff81915660>] ? add_uevent_var+0x377/0x3aa
[ 42.439113] [<ffffffff81915660>] ? add_uevent_var+0x377/0x3aa
[ 42.441006] [<ffffffff819152e9>] ? kobject_action_type+0x380/0x380
[ 42.441006] [<ffffffff819152e9>] ? kobject_action_type+0x380/0x380
[ 42.443093] [<ffffffff8190fb55>] ? kzalloc+0x26/0x28
[ 42.443093] [<ffffffff8190fb55>] ? kzalloc+0x26/0x28
[ 42.444787] [<ffffffff81916211>] kobject_uevent_env+0xb7e/0x11b4
[ 42.444787] [<ffffffff81916211>] kobject_uevent_env+0xb7e/0x11b4
[ 42.446805] [<ffffffff81916869>] kobject_uevent+0x22/0x24
[ 42.446805] [<ffffffff81916869>] kobject_uevent+0x22/0x24
[ 42.448580] [<ffffffff81e29589>] device_add+0x1b70/0x21a0
[ 42.448580] [<ffffffff81e29589>] device_add+0x1b70/0x21a0
[ 42.450412] [<ffffffff81e27a19>] ? dev_warn+0xff/0xff
[ 42.450412] [<ffffffff81e27a19>] ? dev_warn+0xff/0xff
[ 42.452138] [<ffffffff828bbefb>] ? of_device_make_bus_id+0x25b/0x25b
[ 42.452138] [<ffffffff828bbefb>] ? of_device_make_bus_id+0x25b/0x25b
[ 42.454240] [<ffffffff813e2372>] ? trace_preempt_on+0x30/0x35
[ 42.454240] [<ffffffff813e2372>] ? trace_preempt_on+0x30/0x35
[ 42.456186] [<ffffffff813b0a4f>] ? __sanitizer_cov_trace_pc+0x5/0xbb
[ 42.456186] [<ffffffff813b0a4f>] ? __sanitizer_cov_trace_pc+0x5/0xbb
[ 42.458319] [<ffffffff813e7cd3>] ? ftrace_likely_update+0x436/0x445
[ 42.458319] [<ffffffff813e7cd3>] ? ftrace_likely_update+0x436/0x445
[ 42.460374] [<ffffffff828ba06f>] of_device_add+0x209/0x212
[ 42.460374] [<ffffffff828ba06f>] of_device_add+0x209/0x212
[ 42.462195] [<ffffffff828bc778>] of_platform_device_create_pdata+0x24c/0x2fd
[ 42.462195] [<ffffffff828bc778>] of_platform_device_create_pdata+0x24c/0x2fd
[ 42.464568] [<ffffffff828bd02a>] of_platform_device_create+0x30/0x35
[ 42.464568] [<ffffffff828bd02a>] of_platform_device_create+0x30/0x35
[ 42.467269] [<ffffffff828bd2c9>] of_platform_notify+0x29a/0x541
[ 42.467269] [<ffffffff828bd2c9>] of_platform_notify+0x29a/0x541
[ 42.469258] [<ffffffff828bd02f>] ? of_platform_device_create+0x35/0x35
[ 42.469258] [<ffffffff828bd02f>] ? of_platform_device_create+0x35/0x35
[ 42.471468] [<ffffffff813e2372>] ? trace_preempt_on+0x30/0x35
[ 42.471468] [<ffffffff813e2372>] ? trace_preempt_on+0x30/0x35
[ 42.473366] [<ffffffff8126145d>] ? preempt_count_sub+0xae/0xbd
[ 42.473366] [<ffffffff8126145d>] ? preempt_count_sub+0xae/0xbd
[ 42.475310] [<ffffffff8124602c>] notifier_call_chain+0xd7/0x234
[ 42.475310] [<ffffffff8124602c>] notifier_call_chain+0xd7/0x234
[ 42.477317] [<ffffffff81246a61>] __blocking_notifier_call_chain+0x104/0x12c
[ 42.477317] [<ffffffff81246a61>] __blocking_notifier_call_chain+0x104/0x12c
[ 42.479795] [<ffffffff81246abe>] blocking_notifier_call_chain+0x35/0x37
[ 42.479795] [<ffffffff81246abe>] blocking_notifier_call_chain+0x35/0x37
[ 42.481991] [<ffffffff828be3d0>] of_reconfig_notify+0x29/0x51
[ 42.481991] [<ffffffff828be3d0>] of_reconfig_notify+0x29/0x51
[ 42.483925] [<ffffffff828becc4>] __of_changeset_entry_notify+0x1a7/0x375
[ 42.483925] [<ffffffff828becc4>] __of_changeset_entry_notify+0x1a7/0x375
[ 42.486116] [<ffffffff828beb1d>] ? of_property_notify+0x19b/0x19b
[ 42.486116] [<ffffffff828beb1d>] ? of_property_notify+0x19b/0x19b
[ 42.488186] [<ffffffff82beb361>] ? __mutex_unlock_slowpath+0x734/0x760
[ 42.488186] [<ffffffff82beb361>] ? __mutex_unlock_slowpath+0x734/0x760
[ 42.490339] [<ffffffff82beac2d>] ? __ww_mutex_lock_check_stamp+0x452/0x452
[ 42.490339] [<ffffffff82beac2d>] ? __ww_mutex_lock_check_stamp+0x452/0x452
[ 42.492620] [<ffffffff8129b0b6>] ? mark_held_locks+0xa6/0xdf
[ 42.492620] [<ffffffff8129b0b6>] ? mark_held_locks+0xa6/0xdf
[ 42.494529] [<ffffffff828c1373>] __of_changeset_apply+0x24d/0x2c5
[ 42.494529] [<ffffffff828c1373>] __of_changeset_apply+0x24d/0x2c5
[ 42.496548] [<ffffffff828beb22>] ? __of_changeset_entry_notify+0x5/0x375
[ 42.496548] [<ffffffff828beb22>] ? __of_changeset_entry_notify+0x5/0x375
[ 42.498722] [<ffffffff828c1373>] ? __of_changeset_apply+0x24d/0x2c5
[ 42.498722] [<ffffffff828c1373>] ? __of_changeset_apply+0x24d/0x2c5
[ 42.500834] [<ffffffff828c1126>] ? of_changeset_destroy+0xd9/0xd9
[ 42.500834] [<ffffffff828c1126>] ? of_changeset_destroy+0xd9/0xd9
[ 42.502906] [<ffffffff82bf95e9>] ? _raw_spin_unlock_irqrestore+0x10b/0x18d
[ 42.502906] [<ffffffff82bf95e9>] ? _raw_spin_unlock_irqrestore+0x10b/0x18d
[ 42.505136] [<ffffffff828b1dd0>] ? of_get_next_child+0x47/0x51
[ 42.505136] [<ffffffff828b1dd0>] ? of_get_next_child+0x47/0x51
[ 42.507099] [<ffffffff813b0a4f>] ? __sanitizer_cov_trace_pc+0x5/0xbb
[ 42.507099] [<ffffffff813b0a4f>] ? __sanitizer_cov_trace_pc+0x5/0xbb
[ 42.509239] [<ffffffff828d2512>] ? of_overlay_apply_one+0x8b5/0x8c6
[ 42.509239] [<ffffffff828d2512>] ? of_overlay_apply_one+0x8b5/0x8c6
[ 42.511321] [<ffffffff828d3274>] of_overlay_create+0xd51/0xed8
[ 42.511321] [<ffffffff828d3274>] of_overlay_create+0xd51/0xed8
[ 42.513284] [<ffffffff828c112b>] ? __of_changeset_apply+0x5/0x2c5
[ 42.513284] [<ffffffff828c112b>] ? __of_changeset_apply+0x5/0x2c5
[ 42.515324] [<ffffffff828d3274>] ? of_overlay_create+0xd51/0xed8
[ 42.515324] [<ffffffff828d3274>] ? of_overlay_create+0xd51/0xed8
[ 42.517306] [<ffffffff828d2523>] ? of_overlay_apply_one+0x8c6/0x8c6
[ 42.517306] [<ffffffff828d2523>] ? of_overlay_apply_one+0x8c6/0x8c6
[ 42.519437] [<ffffffff82bf95e9>] ? _raw_spin_unlock_irqrestore+0x10b/0x18d
[ 42.519437] [<ffffffff82bf95e9>] ? _raw_spin_unlock_irqrestore+0x10b/0x18d
[ 42.521708] [<ffffffff813b0a4f>] ? __sanitizer_cov_trace_pc+0x5/0xbb
[ 42.521708] [<ffffffff813b0a4f>] ? __sanitizer_cov_trace_pc+0x5/0xbb
[ 42.523822] [<ffffffff828b2c0b>] ? of_find_node_opts_by_path+0xa64/0xa76
[ 42.523822] [<ffffffff828b2c0b>] ? of_find_node_opts_by_path+0xa64/0xa76
[ 42.526072] [<ffffffff82a69f0a>] of_unittest_apply_overlay+0xf6/0x28c
[ 42.526072] [<ffffffff82a69f0a>] of_unittest_apply_overlay+0xf6/0x28c
[ 42.528443] [<ffffffff82a6a385>] of_unittest_apply_overlay_check+0x137/0x2e7
[ 42.528443] [<ffffffff82a6a385>] of_unittest_apply_overlay_check+0x137/0x2e7
[ 42.530754] [<ffffffff846d6a3e>] of_unittest+0x43b9/0x6081
[ 42.530754] [<ffffffff846d6a3e>] of_unittest+0x43b9/0x6081
[ 42.532616] [<ffffffff846d2685>] ? of_unittest_dynamic+0xa7d/0xa7d
[ 42.532616] [<ffffffff846d2685>] ? of_unittest_dynamic+0xa7d/0xa7d
[ 42.534704] [<ffffffff81584075>] ? kasan_poison_shadow+0x2f/0x31
[ 42.534704] [<ffffffff81584075>] ? kasan_poison_shadow+0x2f/0x31
[ 42.536687] [<ffffffff815830af>] ? kfree+0x1d3/0x1e2
[ 42.536687] [<ffffffff815830af>] ? kfree+0x1d3/0x1e2
[ 42.538373] [<ffffffff8129b4dd>] ? trace_hardirqs_on_caller+0x3ee/0x49d
[ 42.538373] [<ffffffff8129b4dd>] ? trace_hardirqs_on_caller+0x3ee/0x49d
[ 42.540568] [<ffffffff846d2685>] ? of_unittest_dynamic+0xa7d/0xa7d
[ 42.540568] [<ffffffff846d2685>] ? of_unittest_dynamic+0xa7d/0xa7d
[ 42.542651] [<ffffffff845b1b88>] do_one_initcall+0x3cd/0x664
[ 42.542651] [<ffffffff845b1b88>] do_one_initcall+0x3cd/0x664
[ 42.544552] [<ffffffff813b0a4f>] ? __sanitizer_cov_trace_pc+0x5/0xbb
[ 42.544552] [<ffffffff813b0a4f>] ? __sanitizer_cov_trace_pc+0x5/0xbb
[ 42.546635] [<ffffffff845aff2a>] ? repair_env_string+0x252/0x25d
[ 42.546635] [<ffffffff845aff2a>] ? repair_env_string+0x252/0x25d
[ 42.548653] [<ffffffff845b17bb>] ? start_kernel+0x9e8/0x9e8
[ 42.548653] [<ffffffff845b17bb>] ? start_kernel+0x9e8/0x9e8
[ 42.550542] [<ffffffff8123fa2a>] ? parse_args+0xe41/0xe54
[ 42.550542] [<ffffffff8123fa2a>] ? parse_args+0xe41/0xe54
[ 42.552347] [<ffffffff845b22fb>] kernel_init_freeable+0x4dc/0x721
[ 42.552347] [<ffffffff845b22fb>] kernel_init_freeable+0x4dc/0x721
[ 42.554330] [<ffffffff82be085c>] kernel_init+0x16/0x440
[ 42.554330] [<ffffffff82be085c>] kernel_init+0x16/0x440
[ 42.556094] [<ffffffff82bfab92>] ret_from_fork+0x22/0x50
[ 42.556094] [<ffffffff82bfab92>] ret_from_fork+0x22/0x50
[ 42.557880] [<ffffffff82be0846>] ? rest_init+0x28d/0x28d
[ 42.557880] [<ffffffff82be0846>] ? rest_init+0x28d/0x28d
[ 42.559645] Object at ffff880012049280, in cache kmalloc-32
[ 42.559645] Object at ffff880012049280, in cache kmalloc-32
[ 42.561477] Object allocated with size 9 bytes.
[ 42.561477] Object allocated with size 9 bytes.
[ 42.562953] Allocation:
[ 42.562953] Allocation:
[ 42.563753] PID = 1
[ 42.563753] PID = 1
[ 42.564456]
[ 42.564456] [<ffffffff81095e55>] save_stack_trace+0x2a/0x5a
[<ffffffff81095e55>] save_stack_trace+0x2a/0x5a
[ 42.566368]
[ 42.566368] [<ffffffff815840bd>] save_stack+0x46/0xd6
[<ffffffff815840bd>] save_stack+0x46/0xd6
[ 42.568134]
[ 42.568134] [<ffffffff81584503>] kasan_kmalloc+0xaa/0xb9
[<ffffffff81584503>] kasan_kmalloc+0xaa/0xb9
[ 42.569898]
[ 42.569898] [<ffffffff8158242f>] __kmalloc_track_caller+0x192/0x1bc
[<ffffffff8158242f>] __kmalloc_track_caller+0x192/0x1bc
[ 42.572011]
[ 42.572011] [<ffffffff814ea276>] kmemdup+0x2e/0xd1
[<ffffffff814ea276>] kmemdup+0x2e/0xd1
[ 42.573669]
[ 42.573669] [<ffffffff828c0910>] __of_prop_dup+0x241/0x3c8
[<ffffffff828c0910>] __of_prop_dup+0x241/0x3c8
[ 42.575567]
[ 42.575567] [<ffffffff828d1e11>] of_overlay_apply_one+0x1b4/0x8c6
[<ffffffff828d1e11>] of_overlay_apply_one+0x1b4/0x8c6
[ 42.577582]
[ 42.577582] [<ffffffff828d2393>] of_overlay_apply_one+0x736/0x8c6
[<ffffffff828d2393>] of_overlay_apply_one+0x736/0x8c6
[ 42.579661]
[ 42.579661] [<ffffffff828d3070>] of_overlay_create+0xb4d/0xed8
[<ffffffff828d3070>] of_overlay_create+0xb4d/0xed8
[ 42.581636]
[ 42.581636] [<ffffffff82a69f0a>] of_unittest_apply_overlay+0xf6/0x28c
[<ffffffff82a69f0a>] of_unittest_apply_overlay+0xf6/0x28c
[ 42.583980]
git bisect start v4.6 v4.5 --
git bisect good 63e30271b04c712c684c07567401b61b10d094d4 # 15:36 21+ 0 Merge tag 'pci-v4.6-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
git bisect good d3436a1d03f9a416d8bedd968f16296e0140adcb # 16:03 20+ 20 Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
git bisect bad 763cfc86ee8fd728a7cf2334b8d3a897af7a7ade # 16:26 0- 1 Merge branch 'for-4.6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
git bisect bad 29dde7c25adafcdcbde3a14bce3f07e5a201dc30 # 17:16 0- 6 Merge tag 'for-linus-20160415' of git://git.infradead.org/linux-mtd
git bisect bad a56711fa0b418a2cf5eefa00ee65e16443e47790 # 18:00 0- 22 Merge tag 'arc-4.6-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
git bisect good c6e6e58cc8a636b9b833a7b4bc00cde1fe20892f # 18:19 22+ 22 Merge tag 'staging-4.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
git bisect bad 5b5b7fd185e997ebc18f76b98b9f4ff148d3f5bb # 18:33 0- 4 Merge branch 'parisc-4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
git bisect good 183c948a3cb3efbf45eabed41fa7ee04c19378fc # 18:50 22+ 2 Merge tag 'tty-4.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
git bisect bad 289b7bfd483c8ca3dfde92d7e19a8b70e0b81248 # 19:02 0- 1 Merge tag 'gpio-v4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
git bisect good 476e2fc5cd430bbe17598833e79f8e8b9e4bbbc7 # 19:21 22+ 2 gpiolib: Do not use devm functions when registering gpio chip
git bisect good 9b8e3ec34318663affced3c14d960e78d760dd9a # 01:12 22+ 22 gpio: pca953x: Use correct u16 value for register word write
# first bad commit: [289b7bfd483c8ca3dfde92d7e19a8b70e0b81248] Merge tag 'gpio-v4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
git bisect good 183c948a3cb3efbf45eabed41fa7ee04c19378fc # 04:34 62+ 64 Merge tag 'tty-4.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
git bisect good 9b8e3ec34318663affced3c14d960e78d760dd9a # 08:57 64+ 86 gpio: pca953x: Use correct u16 value for register word write
# extra tests with CONFIG_DEBUG_INFO_REDUCED
git bisect bad 289b7bfd483c8ca3dfde92d7e19a8b70e0b81248 # 09:34 0- 1 Merge tag 'gpio-v4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
# extra tests on HEAD of linux-devel/devel-hourly-2017022603
git bisect bad 0acdc349b86c481b5e17b8a6b54a1191882ebbad # 09:34 0- 13 0day head guard for 'devel-hourly-2017022603'
# extra tests on tree/branch linus/master
git bisect bad e5d56efc97f8240d0b5d66c03949382b6d7e5570 # 10:50 0- 3 Merge tag 'watchdog-for-linus-v4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
# extra tests on tree/branch linux-next/master
git bisect good 3e7350242c6f3d41d28e03418bd781cc1b7bad5f # 01:04 60+ 72 Add linux-next specific files for 20170224
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/lkp Intel Corporation
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