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Date: Fri, 17 Feb 2017 17:48:23 +0800
From: Fengguang Wu <fengguang.wu@...el.com>
To: Rob Herring <robh@...nel.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
linux-kernel@...r.kernel.org, LKP <lkp@...org>
Subject: [driver core] bea5b158ff WARNING: CPU: 0 PID: 1 at
drivers/ata/libata-core.c:6482 ata_port_detach
Hi Rob,
We see this WARNING in both mainline and linux-next kernels.
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 | 8df5cf57b8 |
+----------------------------------------------------------------------------+------------+------------+------------+
| boot_successes | 63 | 0 | 0 |
| boot_failures | 0 | 22 | 67 |
| WARNING:at_drivers/ata/libata-core.c:#ata_port_detach | 0 | 22 | 67 |
| calltrace:piix_init | 0 | 22 | |
| BUG:unable_to_handle_kernel | 0 | 18 | 40 |
| Oops:#[##] | 0 | 18 | 40 |
| RIP:ata_dev_next | 0 | 18 | |
| calltrace:async_run_entry_fn | 0 | 18 | |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 18 | 47 |
| WARNING:at_drivers/gpu/drm/drm_mode_config.c:#drm_mode_config_cleanup[drm] | 0 | 0 | 7 |
| kernel_BUG_at_include/linux/mm.h | 0 | 0 | 7 |
+----------------------------------------------------------------------------+------------+------------+------------+
[ 11.449739] sd 0:0:0:0: [sda] Mode Sense: 73 00 10 08
[ 11.490073] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, supports DPO and FUA
[ 11.569086] ------------[ cut here ]------------
[ 11.569955] WARNING: CPU: 0 PID: 1 at drivers/ata/libata-core.c:6482 ata_port_detach+0x5e/0xed
[ 11.572803] Modules linked in:
[ 11.573415] CPU: 0 PID: 1 Comm: swapper Not tainted 4.8.0-rc4-00003-gbea5b15 #1
[ 11.574663] ffffffff81b0f132 ffff88001d46bb68 ffffffff812dec12 ffff88001d46bbb8
[ 11.579395] ffffffff81050301 0000000000000000 000000091d464000 ffffffff81073c08
[ 11.582269] ffff88001f1e0000 0000000000000282 ffffffff81c8b810 0000000000000000
[ 11.585116] Call Trace:
[ 11.586307] ata2.01: NODEV after polling detection
[ 11.586998] ata2.00: ATAPI: QEMU DVD-ROM, 2.5+, max UDMA/100
[ 11.587916] ata2.00: configured for MWDMA2
[ 11.596069] [<ffffffff812dec12>] dump_stack+0x19/0x1b
[ 11.597928] [<ffffffff81050301>] __warn+0xcb/0xe9
[ 11.602263] [<ffffffff81073c08>] ? woken_wake_function+0xe/0xe
[ 11.604794] [<ffffffff81050337>] warn_slowpath_null+0x18/0x1a
[ 11.606826] [<ffffffff8149d2b1>] ata_port_detach+0x5e/0xed
[ 11.609136] [<ffffffff8149d360>] ata_host_detach+0x20/0x34
[ 11.613021] [<ffffffff8149d398>] ata_pci_remove_one+0x10/0x12
[ 11.614376] [<ffffffff814b645e>] piix_remove_one+0x33/0x37
[ 11.615381] [<ffffffff8131fce2>] pci_device_remove+0x38/0x9b
[ 11.616559] [<ffffffff813ce095>] ? driver_sysfs_add+0x6e/0x94
[ 11.617529] [<ffffffff813ce34d>] really_probe+0x12f/0x2b1
[ 11.618421] [<ffffffff816c0ede>] ? _raw_spin_unlock_irq+0x2b/0x3d
[ 11.619410] [<ffffffff813d75b5>] ? pm_runtime_barrier+0x6e/0x9b
[ 11.620630] [<ffffffff813ce513>] driver_probe_device+0x44/0x72
[ 11.621646] [<ffffffff813ce5b2>] __driver_attach+0x71/0x97
[ 11.623247] [<ffffffff813ce541>] ? driver_probe_device+0x72/0x72
[ 11.624535] [<ffffffff813cc86a>] bus_for_each_dev+0x56/0x94
[ 11.625458] [<ffffffff813cdf8f>] driver_attach+0x19/0x1b
[ 11.626337] [<ffffffff813cd918>] bus_add_driver+0xeb/0x1e3
[ 11.627238] [<ffffffff813cea2d>] driver_register+0x89/0xc1
[ 11.628697] [<ffffffff8131fef0>] __pci_register_driver+0x63/0x6a
[ 11.629742] [<ffffffff81cfb79c>] ? pdc_sata_pci_driver_init+0x1b/0x1b
[ 11.630876] [<ffffffff81cfb7b5>] piix_init+0x19/0x29
[ 11.631849] [<ffffffff810003e5>] do_one_initcall+0x95/0x142
[ 11.632850] [<ffffffff81ccda00>] ? kernel_init_freeable+0xd5/0x1a4
[ 11.634565] [<ffffffff81ccd908>] do_basic_setup+0xa7/0xca
[ 11.635555] [<ffffffff81ccdacf>] ? kernel_init_freeable+0x1a4/0x1a4
[ 11.636601] [<ffffffff81ccda53>] kernel_init_freeable+0x128/0x1a4
[ 11.638202] [<ffffffff816b6227>] ? kernel_init+0x9/0xee
[ 11.639167] [<ffffffff816b6227>] kernel_init+0x9/0xee
[ 11.640171] [<ffffffff816c12ef>] ret_from_fork+0x1f/0x40
[ 11.641451] [<ffffffff816b621e>] ? rest_init+0x135/0x135
[ 11.642858] ---[ end trace 4c76f43f7bd2e878 ]---
[ 11.645100] ata2.00: disabled
git bisect start v4.9 v4.8 --
git bisect bad 9fe68cad6e74967b88d0c6aeca7d9cd6b6e91942 # 13:46 0- 21 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
git bisect bad 5fa0eb0b4d4780fbd6d8a09850cc4fd539e9fe65 # 13:55 0- 9 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect bad d8ea757b25ec82687c497fc90aa83f9bcea24b5b # 14:03 0- 9 Merge tag 'xtensa-20161005' of git://github.com/jcmvbkbc/linux-xtensa
git bisect bad e6445f52d9c8b0e6557a45fa7d0e8e088d430a8c # 14:12 0- 9 Merge tag 'usb-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
git bisect good 1a4a2bc460721bc8f91e4c1294d39b38e5af132f # 14:23 22+ 0 Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect good 49deffe0b0e4c2030696c7a6fd680bacf4761069 # 14:34 21+ 0 Merge tag 'arc-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
git bisect good 597f03f9d133e9837d00965016170271d4f87dcf # 14:52 21+ 0 Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect bad 9929780e86854833e649b39b290b5fe921eb1701 # 15:01 0- 8 Merge tag 'driver-core-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
git bisect good 7a53eea1f7b527fd3b6d7ca992914840981afe99 # 15:12 22+ 1 Merge tag 'char-misc-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
git bisect bad 775115c06091fcfa1189a50aca488fa596839617 # 15:23 0- 21 drivers/base dmam_declare_coherent_memory leaks
git bisect bad 426bc8e789f8ac84270b196191904d347586032f # 15:31 0- 16 base: soc: make it explicitly non-modular
git bisect bad bea5b158ff0da9c7246ff391f754f5f38e34577a # 15:41 0- 18 driver core: add test of driver remove calls during probe
git bisect good cebf8fd16900fdfd58c0028617944f808f97fe50 # 15:55 22+ 0 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 # 15:58 63+ 0 driver core: fix race between creating/querying glue dir and its cleanup
# extra tests with CONFIG_DEBUG_INFO_REDUCED
git bisect bad bea5b158ff0da9c7246ff391f754f5f38e34577a # 16:08 0- 56 driver core: add test of driver remove calls during probe
# extra tests on HEAD of linux-devel/devel-spot-201702171112
git bisect bad 8df5cf57b86922284a2b433abdc853bd4812ca88 # 16:08 0- 67 0day head guard for 'devel-spot-201702171112'
# extra tests on tree/branch linus/master
git bisect bad 0722f57bfae9abbc673b9dbe495c7da2f64676ea # 16:17 0- 49 Merge tag 'drm-fixes-for-v4.10-final' of git://people.freedesktop.org/~airlied/linux
# extra tests on tree/branch linus/master
git bisect bad 0722f57bfae9abbc673b9dbe495c7da2f64676ea # 16:17 0- 50 Merge tag 'drm-fixes-for-v4.10-final' of git://people.freedesktop.org/~airlied/linux
# extra tests on tree/branch linux-next/master
git bisect bad 38161d2f17e3f071418b1562e1bc57ad004d1244 # 16:27 0- 35 Add linux-next specific files for 20170216
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/lkp Intel Corporation
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