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Date: Tue, 31 May 2016 16:10:21 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: Eduardo Valentin <edubezval@...il.com>
Cc: 0day robot <fengguang.wu@...el.com>,
Zhang Rui <rui.zhang@...el.com>,
LKML <linux-kernel@...r.kernel.org>, lkp@...org
Subject: [lkp] [thermal] 1c3ceab5a8: WARNING: CPU: 0 PID: 1 at
fs/sysfs/group.c:61 internal_create_group+0x1e4/0x420
FYI, we noticed the following commit:
https://github.com/0day-ci/linux Eduardo-Valentin/thermal-reorganizing-thermal-core/20160531-063319
commit 1c3ceab5a8e7bcd807696d94f8863dd4e400c8c5 ("thermal: core: use dev.groups to manage always present tz attributes")
on test machine: vm-vp-quantal-i386: 1 threads qemu-system-i386 -enable-kvm -cpu Haswell,+smep,+smap with 360M memory
caused below changes:
+------------------------------------------------------------------+------------+------------+
| | ed5838d224 | 1c3ceab5a8 |
+------------------------------------------------------------------+------------+------------+
| boot_successes | 0 | 0 |
| boot_failures | 12 | 10 |
| invoked_oom-killer:gfp_mask=0x | 12 | |
| Mem-Info | 12 | |
| Kernel_panic-not_syncing:Out_of_memory_and_no_killable_processes | 12 | |
| backtrace:btrfs_test_extent_io | 12 | |
| backtrace:init_btrfs_fs | 12 | |
| backtrace:kernel_init_freeable | 12 | 10 |
| page_allocation_failure:order:#,mode:#(GFP_KERNEL|__GFP_NORETRY) | 1 | |
| warn_alloc_failed+0x | 1 | |
| backtrace:ring_buffer_consumer_thread | 1 | |
| WARNING:at_fs/sysfs/group.c:#internal_create_group | 0 | 10 |
| BUG:unable_to_handle_kernel | 0 | 10 |
| Oops | 0 | 10 |
| EIP_is_at_string | 0 | 10 |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 10 |
| backtrace:power_supply_register | 0 | 10 |
| backtrace:test_power_init | 0 | 10 |
+------------------------------------------------------------------+------------+------------+
[ 20.597358] __power_supply_register: Expected proper parent device for 'test_ac'
[ 20.601762] __power_supply_register: Expected proper parent device for 'test_battery'
[ 20.607055] ------------[ cut here ]------------
[ 20.612928] WARNING: CPU: 0 PID: 1 at fs/sysfs/group.c:61 internal_create_group+0x1e4/0x420
[ 20.627436] BUG: unable to handle kernel paging request at 6c756d65
[ 20.629794] IP: [<c1685a0c>] string+0x2c/0xb0
[ 20.631621] *pdpt = 0000000000000000 *pde = 0000000000000000
[ 20.634330] Oops: 0000 [#1] PREEMPT SMP
[ 20.638711] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.6.0-rc6-00055-g1c3ceab #1
[ 20.641928] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014
[ 20.645710] task: d42d8040 ti: d42d4000 task.ti: d42d4000
[ 20.647635] EIP: 0060:[<c1685a0c>] EFLAGS: 00010086 CPU: 0
[ 20.655603] EIP is at string+0x2c/0xb0
[ 20.657415] EAX: c2e111ca EBX: d42d5de8 ECX: 6c756d65 EDX: ffffffff
[ 20.660981] ESI: fffffffe EDI: ffff0a00 EBP: d42d5cdc ESP: d42d5cbc
[ 20.663074] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
[ 20.665387] CR0: 80050033 CR2: 6c756d65 CR3: 02899000 CR4: 000406f0
[ 20.670149] Stack:
[ 20.671374] c10b44a9 00000282 ffff0a00 ffffff04 c2e115a0 d42d5de8 c23d5bcc c2e111ca
[ 20.676025] d42d5d18 c168710a ffffff04 ffff0a00 00000000 00000001 c2e111c0 000003e0
[ 20.680279] 00000002 c2e115a0 ffffff04 ffff0a00 00000000 000003e0 00000000 d42d5d2c
[ 20.687079] Call Trace:
[ 20.688916] [<c10b44a9>] ? do_raw_spin_unlock+0xc9/0x100
[ 20.690756] [<c168710a>] vsnprintf+0x1fa/0x410
[ 20.692577] [<c16877c7>] vscnprintf+0x17/0x50
[ 20.698734] [<c10c4bde>] vprintk_emit+0x2fe/0x560
[ 20.700766] [<c125a724>] ? internal_create_group+0x1e4/0x420
[ 20.702701] [<c10c4e7d>] vprintk+0x3d/0x40
[ 20.717325] [<c10623c8>] __warn+0xa8/0x100
[ 20.720974] [<c125a724>] ? internal_create_group+0x1e4/0x420
[ 20.723777] [<c106245b>] warn_slowpath_fmt+0x3b/0x40
[ 20.727559] [<c125a724>] internal_create_group+0x1e4/0x420
[ 20.731361] [<c125aa69>] sysfs_create_groups+0x39/0x90
[ 20.734687] [<c181c1f5>] device_add+0x5d5/0x610
[ 20.737403] [<c182d0ac>] ? pm_runtime_init+0xfc/0x110
[ 20.741928] [<c181c327>] device_register+0x17/0x20
[ 20.744590] [<c1bb1f78>] thermal_zone_device_register+0x178/0x840
[ 20.748612] [<c1b4d103>] __power_supply_register+0x273/0x3a0
[ 20.752551] [<c1b4d5b7>] power_supply_register+0x17/0x20
[ 20.757049] [<c27d4858>] test_power_init+0x21/0xa0
[ 20.759699] [<c27d4837>] ? wm831x_power_driver_init+0x11/0x11
[ 20.763614] [<c277fc78>] do_one_initcall+0xf7/0x1b8
[ 20.767399] [<c10b44a9>] ? do_raw_spin_unlock+0xc9/0x100
[ 20.770765] [<c277fea9>] ? kernel_init_freeable+0x170/0x214
[ 20.777180] [<c277fec5>] kernel_init_freeable+0x18c/0x214
[ 20.795488] [<c1ef2260>] kernel_init+0x10/0x110
[ 20.800411] [<c1efb289>] ret_from_kernel_thread+0x21/0x38
[ 20.806318] [<c1ef2250>] ? rest_init+0xb0/0xb0
[ 20.812016] Code: 89 e5 57 56 53 83 ec 14 8b 7d 0c 8b 75 08 89 55 f0 89 fa 89 75 ec 89 7d e8 c1 fa 10 81 f9 ff 0f 00 00 8d 72 ff 76 58 85 d2 74 46 <0f> b6 19 8d 79 01 84 db 75 1a eb 3a 90 8d b4 26 00 00 00 00 83
[ 20.840640] EIP: [<c1685a0c>] string+0x2c/0xb0 SS:ESP 0068:d42d5cbc
[ 20.844714] CR2: 000000006c756d65
[ 20.848276] ---[ end trace c01e283b9f8d84d6 ]---
[ 20.850775] Kernel panic - not syncing: Fatal exception
FYI, raw QEMU command line is:
qemu-system-i386 -enable-kvm -cpu Haswell,+smep,+smap -kernel /pkg/linux/i386-randconfig-x0-05310913/gcc-6/1c3ceab5a8e7bcd807696d94f8863dd4e400c8c5/vmlinuz-4.6.0-rc6-00055-g1c3ceab -append 'root=/dev/ram0 user=lkp job=/lkp/scheduled/vm-vp-quantal-i386-41/bisect_boot-1-quantal-core-i386.cgz-i386-randconfig-x0-05310913-1c3ceab5a8e7bcd807696d94f8863dd4e400c8c5-20160531-120469-1d4e5q5-0.yaml ARCH=i386 kconfig=i386-randconfig-x0-05310913 branch=linux-devel/devel-catchup-201605311016 commit=1c3ceab5a8e7bcd807696d94f8863dd4e400c8c5 BOOT_IMAGE=/pkg/linux/i386-randconfig-x0-05310913/gcc-6/1c3ceab5a8e7bcd807696d94f8863dd4e400c8c5/vmlinuz-4.6.0-rc6-00055-g1c3ceab max_uptime=600 RESULT_ROOT=/result/boot/1/vm-vp-quantal-i386/quantal-core-i386.cgz/i386-randconfig-x0-05310913/gcc-6/1c3ceab5a8e7bcd807696d94f8863dd4e400c8c5/0 LKP_SERVER=inn earlyprintk=ttyS0,115200 systemd.log_level=err debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal rw ip=::::vm-vp-quantal-i386-41::dhcp drbd.minor_count=8' -initrd /fs/sde1/initrd-vm-vp-quantal-i386-41 -m 360 -smp 1 -device e1000,netdev=net0 -netdev user,id=net0 -boot order=nc -no-reboot -watchdog i6300esb -rtc base=localtime -pidfile /dev/shm/kboot/pid-vm-vp-quantal-i386-41 -serial file:/dev/shm/kboot/serial-vm-vp-quantal-i386-41 -daemonize -display none -monitor null
Thanks,
Xiaolong
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