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Message-ID: <20190102010623.GE17624@shao2-debian>
Date: Wed, 2 Jan 2019 09:06:23 +0800
From: kernel test robot <rong.a.chen@...el.com>
To: Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc: linux-rtc@...r.kernel.org, linux-kernel@...r.kernel.org,
LKP <lkp@...org>
Subject: [LKP] 8b5b7958fd [ 90.848440] BUG: unable to handle kernel paging
request at 6b6b6b6b
Greetings,
0day kernel testing robot got the below dmesg and the first bad commit is
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
commit 8b5b7958fd1cac54bdca62ec5552c6be0b38def4
Author: Alexandre Belloni <alexandre.belloni@...tlin.com>
AuthorDate: Mon Feb 12 23:47:46 2018 +0100
Commit: Alexandre Belloni <alexandre.belloni@...tlin.com>
CommitDate: Thu Mar 1 10:49:29 2018 +0100
rtc: cmos: use generic nvmem
Instead of adding a binary sysfs attribute from the driver, use the
core to register an nvmem device. This allows to use the in-kernel
interface to access the nvram.
Signed-off-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
53d29e0a3a rtc: cmos: fix possible race condition
8b5b7958fd rtc: cmos: use generic nvmem
195303136f Merge tag 'kconfig-v4.21-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
6a1d293238 Add linux-next specific files for 20181224
+------------------------------------------+------------+------------+------------+---------------+
| | 53d29e0a3a | 8b5b7958fd | 195303136f | next-20181224 |
+------------------------------------------+------------+------------+------------+---------------+
| boot_successes | 0 | 0 | 0 | 0 |
| boot_failures | 55 | 11 | 14 | 9 |
| es#_lib.c:#ess_reset_at#:failed | 55 | 0 | 2 | |
| BUG:unable_to_handle_kernel | 0 | 11 | 12 | 9 |
| Oops:#[##] | 0 | 11 | 12 | 9 |
| EIP:strlen | 0 | 11 | 12 | 9 |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 11 | 12 | 9 |
+------------------------------------------+------------+------------+------------+---------------+
[ 90.813587] usbcore: registered new interface driver yealink
[ 90.819856] ideapad_slidebar: DMI does not match
[ 90.827650] rtc_cmos 00:00: RTC can wake from S4
[ 90.838651] rtc_cmos 00:00: registered as rtc0
[ 90.841964] rtc_cmos 00:00: alarms up to one day, y3k, 114 bytes nvram, hpet irqs
[ 90.848440] BUG: unable to handle kernel paging request at 6b6b6b6b
[ 90.850772] IP: strlen+0xd/0x20
[ 90.850772] *pde = 00000000
[ 90.850772] Oops: 0000 [#1] PREEMPT DEBUG_PAGEALLOC
[ 90.850772] CPU: 0 PID: 1 Comm: swapper Not tainted 4.16.0-rc1-00037-g8b5b795 #1
[ 90.850772] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[ 90.850772] EIP: strlen+0xd/0x20
[ 90.850772] EFLAGS: 00210246 CPU: 0
[ 90.850772] EAX: 00000000 EBX: 4030e7a8 ECX: ffffffff EDX: 00000000
[ 90.850772] ESI: 6b6b6b6b EDI: 6b6b6b6b EBP: 40059d74 ESP: 40059d70
[ 90.850772] DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068
[ 90.850772] CR0: 80050033 CR2: 6b6b6b6b CR3: 1a6d7000 CR4: 00140690
[ 90.850772] Call Trace:
[ 90.850772] ? kernfs_name_hash+0xf/0x70
[ 90.850772] ? kernfs_find_ns+0x3d/0x110
[ 90.850772] ? release_nodes+0x10f/0x1f0
[ 90.850772] ? usb_disconnect+0xbc/0x270
[ 90.850772] ? kernfs_remove_by_name_ns+0x2b/0x80
[ 90.850772] ? sysfs_remove_bin_file+0xf/0x20
[ 90.850772] ? rtc_nvmem_unregister+0x2c/0x60
[ 90.850772] ? devm_rtc_release_device+0xd/0x30
[ 90.850772] ? release_nodes+0x106/0x1f0
[ 90.850772] ? usb_disconnect+0xbc/0x270
[ 90.850772] ? devres_release_all+0x34/0x50
[ 90.850772] ? driver_probe_device+0xdf/0x560
[ 90.850772] ? compare_pnp_id+0x24/0xf0
[ 90.850772] ? usb_disconnect+0xbc/0x270
[ 90.850772] ? __driver_attach+0xd9/0x100
[ 90.850772] ? klist_next+0x70/0xf0
[ 90.850772] ? bus_release+0x20/0x20
[ 90.850772] ? driver_probe_device+0x560/0x560
[ 90.850772] ? bus_for_each_dev+0x57/0xa0
[ 90.850772] ? usb_disconnect+0xbc/0x270
[ 90.850772] ? driver_attach+0x19/0x20
[ 90.850772] ? driver_probe_device+0x560/0x560
[ 90.850772] ? bus_add_driver+0x1b7/0x270
[ 90.850772] ? driver_register+0x54/0xe0
[ 90.850772] ? driver_register+0x83/0xe0
[ 90.850772] ? i2c_register_driver+0x49/0x90
[ 90.850772] ? bq4802_driver_init+0x11/0x11
[ 90.850772] ? pnp_register_driver+0x17/0x20
[ 90.850772] ? cmos_init+0xe/0x60
[ 90.850772] ? bq4802_driver_init+0x11/0x11
[ 90.850772] ? do_one_initcall+0x86/0x13b
[ 90.850772] ? set_debug_rodata+0xf/0xf
[ 90.850772] ? usb_disconnect+0xbc/0x270
[ 90.850772] ? kernel_init_freeable+0xdc/0x150
[ 90.850772] ? rest_init+0x110/0x110
[ 90.850772] ? kernel_init+0xb/0x100
[ 90.850772] ? schedule_tail_wrapper+0x9/0xc
[ 90.850772] ? ret_from_fork+0x19/0x24
[ 90.850772] Code: c0 75 fa 89 d8 8b 75 f8 8b 5d f4 8b 7d fc 89 ec 5d c3 8d b6 00 00 00 00 8d bf 00 00 00 00 55 b9 ff ff ff ff 89 e5 57 89 c7 31 c0 <f2> ae 5f b8 fe ff ff ff 29 c8 5d c3 8d b4 26 00 00 00 00 55 89
[ 90.850772] EIP: strlen+0xd/0x20 SS:ESP: 0068:40059d70
[ 90.850772] CR2: 000000006b6b6b6b
[ 90.850772] ---[ end trace 784ab93ce82a3a47 ]---
[ 90.850772] Kernel panic - not syncing: Fatal exception
# HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD
git bisect start v4.17 v4.16 --
git bisect bad 83beed7b2b26f232d782127792dd0cd4362fdc41 # 12:35 B 0 11 25 0 Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal
git bisect good 8844a509863d7da41024194e40190ec00c2cd890 # 12:46 G 11 0 11 22 Merge branch 'misc.sparc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
git bisect bad 80aa76bcd3642480e17bc27811665d928c0b87d6 # 12:47 B 0 11 25 0 Merge tag 'xfs-4.17-merge-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
git bisect bad f77cfbe6455a67d4e9b69f08f07fc62cd11b0674 # 13:04 B 0 7 44 23 Merge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming
git bisect good fd40ffc72e2f74c7db61e400903e7d50a88bc0b0 # 13:24 G 10 0 10 21 selinux: fix missing dput() before selinuxfs unmount
git bisect good d36260050e1881dce09625a9352d8729c911a6e3 # 13:33 G 11 0 11 15 Merge tag 'media/v4.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
git bisect bad fbe173e3ffbd897b5a859020d714c0eaf4af2a1a # 13:45 B 0 1 15 0 Merge tag 'rtc-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
git bisect good 7aa1cf254ca66bc9602bc5adef5bf1d611869a69 # 14:21 G 11 0 11 11 Merge tag 'sound-fix-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
git bisect good 5e630afdcb82779f5bf03fd4a5e86adc56fe7c8a # 14:42 G 10 0 10 23 Merge tag 'fbdev-v4.17' of git://github.com/bzolnier/linux
git bisect bad ce2e5a7613c64ac919d403fd957a472a0f12360e # 15:03 B 0 4 41 22 rtc: ab-b5ze-s3: stop validating rtc_time in .read_time
git bisect good 11ad0b613d35f74dd8453d09b71dc2f0af7cf3e0 # 15:19 G 11 0 11 33 rtc: sirfsoc: remove useless sirfsoc_rtc_ioctl
git bisect bad 68981fd1515de16f8effdd39e81f9a6084a895f7 # 15:39 B 0 6 20 0 rtc: tx4939: switch to rtc_register_device
git bisect bad bcdd559268039d8340d38fa58668393596e29fdc # 15:58 B 0 8 22 0 rtc: rp5c01: fix possible race condition
git bisect good 53d29e0a3afe0567db9e4360e8523b092eb2d4e4 # 16:17 G 11 0 11 11 rtc: cmos: fix possible race condition
git bisect bad 1358e7b2b3312372ba231f6c94902a8dbfc7d2db # 16:30 B 0 4 31 13 rtc: ds1742: switch to rtc_register_device
git bisect bad 8b5b7958fd1cac54bdca62ec5552c6be0b38def4 # 16:50 B 0 6 20 0 rtc: cmos: use generic nvmem
# first bad commit: [8b5b7958fd1cac54bdca62ec5552c6be0b38def4] rtc: cmos: use generic nvmem
git bisect good 53d29e0a3afe0567db9e4360e8523b092eb2d4e4 # 16:59 G 32 0 32 54 rtc: cmos: fix possible race condition
# extra tests with debug options
git bisect bad 8b5b7958fd1cac54bdca62ec5552c6be0b38def4 # 17:17 B 0 1 15 0 rtc: cmos: use generic nvmem
# extra tests on HEAD of linux-review/Petr-Sedl-k/Staging-vt6655-Fix-camel-case-of-variable/20181230-101524
git bisect bad 1eb972809c37b7c05fa6bf4d054886f0e7730971 # 17:23 B 0 13 30 0 Staging: vt6655: Fix camel case of variable
# extra tests on tree/branch linus/master
git bisect bad 195303136f192d37b89e20a8d1d2670d0d825266 # 17:23 B 0 12 41 2 Merge tag 'kconfig-v4.21-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
# extra tests on tree/branch linux-next/master
git bisect bad 6a1d293238c1774cef23c25b5188b0c134c29a34 # 17:44 B 0 1 23 8 Add linux-next specific files for 20181224
---
0-DAY kernel test infrastructure Open Source Technology Center
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