linux-kernel - [gpio] 72bf7443ba: kernel BUG at drivers/base/driver.c:153!

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Date:	Tue, 31 May 2016 10:21:28 +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] 72bf7443ba: 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 72bf7443ba618b9f7a3167c1f591a0dc00faeb2d ("gpio: 104-idi-48: Utilize the ISA bus driver")


on test machine: vm-vp-quantal-i386: 1 threads qemu-system-i386 -enable-kvm -cpu Haswell,+smep,+smap with 360M memory

caused below changes:


[    5.268521] rbtree testing -> 27624 cycles
[    6.369886] augmented rbtree testing -> 39374 cycles
[    7.893834] ------------[ cut here ]------------
[    7.894491] kernel BUG at drivers/base/driver.c:153!
[    7.895396] invalid opcode: 0000 [#1] DEBUG_PAGEALLOC 
[    7.896242] Modules linked in:
[    7.896663] CPU: 0 PID: 1 Comm: swapper Not tainted 4.6.0-rc4-00030-g72bf744 #1
[    7.897640] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014
[    7.898718] task: 8001b000 ti: 80036000 task.ti: 80036000
[    7.899380] EIP: 0060:[<811cb002>] EFLAGS: 00010246 CPU: 0
[    7.900175] EIP is at driver_register+0x9/0xa0
[    7.900723] EAX: 815ff918 EBX: 815ff900 ECX: 00000006 EDX: 8160f060
[    7.901635] ESI: 00000000 EDI: 00000000 EBP: 80037f1c ESP: 80037f00
[    7.902397]  DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068
[    7.903056] CR0: 80050033 CR2: 00000000 CR3: 016a3000 CR4: 00040690
[    7.904137] Stack:
[    7.904406]  811d7d6e 00000286 00000000 00000286 81651c82 8016af40 00000000 80037f24
[    7.905462]  81651c95 80037f84 81000493 8163743f 948dc8bc 815d3f00 80037f70 810498fa
[    7.906528]  00000000 815d3fd0 00060006 815d2bf8 000000ff 948dc8bd 00000200 8157b55f
[    7.907586] Call Trace:
[    7.912053]  [<811d7d6e>] ? isa_register_driver+0x26/0x110
[    7.912795]  [<81651c82>] ? gpiolib_debugfs_init+0x1f/0x1f
[    7.913536]  [<81651c95>] idi_48_driver_init+0x13/0x15
[    7.914217]  [<81000493>] do_one_initcall+0xd9/0x17b
[    7.917980]  [<8163743f>] ? repair_env_string+0x12/0x54
[    7.918697]  [<810498fa>] ? parse_args+0x1a2/0x275
[    7.919343]  [<81637ba2>] kernel_init_freeable+0xd8/0x15b
[    7.924274]  [<81387f6f>] kernel_init+0x8/0xcb
[    7.924823]  [<8138cac8>] ret_from_kernel_thread+0x20/0x34
[    7.925487]  [<81387f67>] ? rest_init+0x10e/0x10e
[    7.926055] Code: 02 31 db 8d 45 f0 e8 93 b6 1b 00 eb 00 5a 89 d8 59 5b 5e 5d c3 55 8b 40 3c 89 e5 e8 af 02 f3 ff 5d c3 8b 50 04 83 7a 48 00 75 02 <0f> 0b 55 89 e5 56 53 83 7a 24 00 89 c3 74 06 83 78 20 00 75 18
[    7.936637] EIP: [<811cb002>] driver_register+0x9/0xa0 SS:ESP 0068:80037f00
[    7.937793] ---[ end trace 2ae6a8b9997e94af ]---
[    7.942071] tsc: Refined TSC clocksource calibration: 2693.510 MHz


FYI, raw QEMU command line is:

	qemu-system-i386 -enable-kvm -cpu Haswell,+smep,+smap -kernel /pkg/linux/i386-randconfig-sb0-05261509/gcc-6/72bf7443ba618b9f7a3167c1f591a0dc00faeb2d/vmlinuz-4.6.0-rc4-00030-g72bf744 -append 'root=/dev/ram0 user=lkp job=/lkp/scheduled/vm-vp-quantal-i386-20/bisect_boot-1-quantal-core-i386.cgz-i386-randconfig-sb0-05261509-72bf7443ba618b9f7a3167c1f591a0dc00faeb2d-20160526-51173-1jydwxg-1.yaml ARCH=i386 kconfig=i386-randconfig-sb0-05261509 branch=linux-devel/devel-spot-201605261432 commit=72bf7443ba618b9f7a3167c1f591a0dc00faeb2d BOOT_IMAGE=/pkg/linux/i386-randconfig-sb0-05261509/gcc-6/72bf7443ba618b9f7a3167c1f591a0dc00faeb2d/vmlinuz-4.6.0-rc4-00030-g72bf744 max_uptime=600 RESULT_ROOT=/result/boot/1/vm-vp-quantal-i386/quantal-core-i386.cgz/i386-randconfig-sb0-05261509/gcc-6/72bf7443ba618b9f7a3167c1f591a0dc00faeb2d/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-i386-20::dhcp drbd.minor_count=8'  -initrd /fs/sdd1/initrd-vm-vp-quantal-i386-20 -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-i386-20 -serial file:/dev/shm/kboot/serial-vm-vp-quantal-i386-20 -daemonize -display none -monitor null 





Thanks,
Xiaolong

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