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Message-ID: <20160531022309.GB3670@yexl-desktop>
Date: Tue, 31 May 2016 10:23:09 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: William Breathitt Gray <vilhelm.gray@...il.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Linus Walleij <linus.walleij@...aro.org>,
Alexandre Courbot <gnurou@...il.com>,
LKML <linux-kernel@...r.kernel.org>,
Linus Torvalds <torvalds@...ux-foundation.org>, lkp@...org
Subject: [gpio] cc736607c8: kernel BUG at drivers/base/driver.c:153!
FYI, we noticed the following commit:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
commit cc736607c86d39ea078519af0de6ee0fbf3096a6 ("gpio: ws16c48: Utilize the ISA bus driver")
on test machine: vm-kbuild-yocto-i386: 2 threads qemu-system-i386 -enable-kvm with 320M memory
caused below changes:
+-------------------------------------------------------+------------+------------+
| | 86ea8a95a4 | cc736607c8 |
+-------------------------------------------------------+------------+------------+
| boot_successes | 11 | 0 |
| boot_failures | 1 | 12 |
| BUG:unable_to_handle_kernel | 1 | |
| Oops | 1 | |
| EIP_is_at_perf_prepare_sample | 1 | |
| Kernel_panic-not_syncing:Fatal_exception_in_interrupt | 1 | |
| backtrace:vfs_fstatat | 1 | |
| backtrace:SyS_fstatat64 | 1 | |
| kernel_BUG_at_drivers/base/driver.c | 0 | 12 |
| invalid_opcode:#[##]PREEMPT_SMP | 0 | 12 |
| EIP_is_at_driver_register | 0 | 12 |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 12 |
| backtrace:ws16c48_driver_init | 0 | 12 |
| backtrace:kernel_init_freeable | 0 | 12 |
+-------------------------------------------------------+------------+------------+
[ 25.433696] rbtree testing -> 28301 cycles
[ 26.544836] augmented rbtree testing -> 42740 cycles
[ 28.246337] ------------[ cut here ]------------
[ 28.246942] kernel BUG at drivers/base/driver.c:153!
[ 28.247784] invalid opcode: 0000 [#1] PREEMPT SMP
[ 28.248433] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.6.0-rc4-00032-gcc73660 #2
[ 28.249361] task: c0030000 ti: c0032000 task.ti: c0032000
[ 28.250038] EIP: 0060:[<c1755cfa>] EFLAGS: 00010246 CPU: 0
[ 28.250738] EIP is at driver_register+0xa/0xe0
[ 28.280022] EAX: c272a298 EBX: 00000000 ECX: 00000000 EDX: c276a800
[ 28.280780] ESI: c272a280 EDI: 00000000 EBP: c0033f14 ESP: c0033eec
[ 28.281620] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
[ 28.282282] CR0: 80050033 CR2: 00000000 CR3: 02a5f000 CR4: 00000690
[ 28.283045] Stack:
[ 28.283298] c176aca6 000e3f00 d0d4b000 00000286 d0d4b000 d3818000 00000000 c28a143b
[ 28.284428] d0d4b308 00000000 c0033f1c c28a144e c0033f78 c2879b8e c10ab791 00000000
[ 28.285512] 00000000 c0033f38 c10d7aab c0033f48 00060006 00000000 c26e1b34 c259e774
[ 28.296719] Call Trace:
[ 28.297044] [<c176aca6>] ? isa_register_driver+0x26/0x150
[ 28.297840] [<c28a143b>] ? wm8994_gpio_init+0x11/0x11
[ 28.298463] [<c28a144e>] ws16c48_driver_init+0x13/0x15
[ 28.299105] [<c2879b8e>] do_one_initcall+0xdf/0x174
[ 28.299704] [<c10ab791>] ? parse_args+0x331/0x540
[ 28.300291] [<c10d7aab>] ? trace_hardirqs_on+0xb/0x10
[ 28.300915] [<c2879d8c>] ? kernel_init_freeable+0x169/0x208
[ 28.311797] [<c2879da5>] kernel_init_freeable+0x182/0x208
[ 28.312479] [<c2093f2b>] kernel_init+0xb/0x120
[ 28.313052] [<c10b4f9c>] ? schedule_tail+0xc/0x90
[ 28.313669] [<c209ac91>] ret_from_kernel_thread+0x21/0x40
[ 28.314359] [<c2093f20>] ? rest_init+0x110/0x110
[ 28.314951] Code: b9 ff 8b 43 70 eb 0c 8d 76 00 8d bc 27 00 00 00 00 31 c0 5b 5d c3 8d 74 26 00 8d bc 27 00 00 00 00 8b 50 04 8b 4a 48 85 c9 75 06 <0f> 0b 8d 74 26 00 55 89 e5 56 53 83 ec 08 89 c3 8b 42 24 85 c0
[ 28.328199] EIP: [<c1755cfa>] driver_register+0xa/0xe0 SS:ESP 0068:c0033eec
[ 28.329049] ---[ end trace 4ee2a401683f9ad5 ]---
[ 28.329576] Kernel panic - not syncing: Fatal exception
FYI, raw QEMU command line is:
qemu-system-i386 -enable-kvm -kernel /pkg/linux/i386-randconfig-b0-05261412/gcc-6/cc736607c86d39ea078519af0de6ee0fbf3096a6/vmlinuz-4.6.0-rc4-00032-gcc73660 -append 'root=/dev/ram0 user=lkp job=/lkp/scheduled/vm-kbuild-yocto-i386-27/bisect_boot-1-yocto-minimal-i386.cgz-i386-randconfig-b0-05261412-cc736607c86d39ea078519af0de6ee0fbf3096a6-20160526-98636-1416dgc-0.yaml ARCH=i386 kconfig=i386-randconfig-b0-05261412 branch=linux-devel/devel-spot-201605261344 commit=cc736607c86d39ea078519af0de6ee0fbf3096a6 BOOT_IMAGE=/pkg/linux/i386-randconfig-b0-05261412/gcc-6/cc736607c86d39ea078519af0de6ee0fbf3096a6/vmlinuz-4.6.0-rc4-00032-gcc73660 max_uptime=600 RESULT_ROOT=/result/boot/1/vm-kbuild-yocto-i386/yocto-minimal-i386.cgz/i386-randconfig-b0-05261412/gcc-6/cc736607c86d39ea078519af0de6ee0fbf3096a6/0 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-kbuild-yocto-i386-27::dhcp drbd.minor_count=8' -initrd /fs/sde1/initrd-vm-kbuild-yocto-i386-27 -m 320 -smp 2 -device e1000,netdev=net0 -netdev user,id=net0 -boot order=nc -no-reboot -watchdog i6300esb -rtc base=localtime -drive file=/fs/sde1/disk0-vm-kbuild-yocto-i386-27,media=disk,if=virtio -pidfile /dev/shm/kboot/pid-vm-kbuild-yocto-i386-27 -serial file:/dev/shm/kboot/serial-vm-kbuild-yocto-i386-27 -daemonize -display none -monitor null
Thanks,
Xiaolong
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