linux-kernel - [lkp] [ppdev] 138e9d20e6: kernel BUG at drivers/base/driver.c:153!

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Message-ID: <878u2nollw.fsf@yhuang-dev.intel.com>
Date:	Sun, 14 Feb 2016 14:24:27 +0800
From:	kernel test robot <ying.huang@...ux.intel.com>
TO:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
CC:	0day robot <fengguang.wu@...el.com>
Subject: [lkp] [ppdev] 138e9d20e6: kernel BUG at drivers/base/driver.c:153!

FYI, we noticed the below changes on

https://github.com/0day-ci/linux Sudip-Mukherjee/ppdev-space-prohibited-between-function-name-and-parenthesis/20160212-210833
commit 138e9d20e69c0d682f584ee1ef0151338eef7499 ("ppdev: use new parport device model")


+------------------------------------------+------------+------------+
|                                          | 2e6ea22be5 | 138e9d20e6 |
+------------------------------------------+------------+------------+
| boot_successes                           | 10         | 0          |
| boot_failures                            | 1          | 31         |
| Out_of_memory:Kill_process               | 1          |            |
| kernel_BUG_at_drivers/base/driver.c      | 0          | 31         |
| invalid_opcode:#[##]SMP_DEBUG_PAGEALLOC  | 0          | 31         |
| RIP:driver_register                      | 0          | 31         |
| Kernel_panic-not_syncing:Fatal_exception | 0          | 31         |
| backtrace:ppdev_init                     | 0          | 31         |
| backtrace:kernel_init_freeable           | 0          | 31         |
+------------------------------------------+------------+------------+



[   11.258846] Non-volatile memory driver v1.3
[   11.262706] modprobe (216) used greatest stack depth: 13872 bytes left
[   11.262893] ------------[ cut here ]------------
[   11.262895] kernel BUG at drivers/base/driver.c:153!
[   11.262898] invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC 
[   11.262899] Modules linked in:
[   11.262902] CPU: 3 PID: 1 Comm: swapper/0 Not tainted 4.5.0-rc1-00151-g138e9d2 #468
[   11.262903] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014
[   11.262905] task: ffff88015763c040 ti: ffff880157020000 task.ti: ffff880157020000
[   11.262917] RIP: 0010:[<ffffffff81b9a436>]  [<ffffffff81b9a436>] driver_register+0x13/0xc6
[   11.262918] RSP: 0018:ffff880157023e60  EFLAGS: 00010246
[   11.262919] RAX: ffffffff841a0cc0 RBX: ffffffff8416d300 RCX: 0000000000000000
[   11.262920] RDX: 0000000100000003 RSI: 0000000000000001 RDI: ffffffff8416d328
[   11.262921] RBP: ffff880157023e80 R08: ffff880158c0dfa0 R09: 000000000000000c
[   11.262922] R10: ffff880157023ce0 R11: ffffffff84061e78 R12: ffffffff83bb03e3
[   11.262923] R13: 0000000000000000 R14: ffffffff84019040 R15: 0000000000000000
[   11.262925] FS:  0000000000000000(0000) GS:ffff880158c00000(0000) knlGS:0000000000000000
[   11.262926] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[   11.262927] CR2: 0000000000000000 CR3: 0000000004012000 CR4: 00000000000006e0
[   11.262931] Stack:
[   11.262934]  ffffffff81b8e2a8 000000009efb6900 ffffffff8467c767 0000000000000000
[   11.262936]  ffff880157023e98 ffffffff8467c7e5 ffff880147b76120 ffff880157023f08
[   11.262937]  ffffffff81002174 ffffffff83f42c00 ffffffff83f249c8 0000000000000200
[   11.262938] Call Trace:
[   11.262947]  [<ffffffff81b8e2a8>] ? __parport_register_driver+0x60/0x110
[   11.262952]  [<ffffffff8467c767>] ? rng_init+0x12/0x12
[   11.262954]  [<ffffffff8467c7e5>] ppdev_init+0x7e/0xc9
[   11.262961]  [<ffffffff81002174>] do_one_initcall+0xe7/0x173
[   11.262967]  [<ffffffff84617144>] kernel_init_freeable+0x1bf/0x24c
[   11.262973]  [<ffffffff82e975c9>] ? rest_init+0x140/0x140
[   11.262975]  [<ffffffff82e975d7>] kernel_init+0xe/0xde
[   11.262980]  [<ffffffff82ea389f>] ret_from_fork+0x3f/0x70
[   11.262981]  [<ffffffff82e975c9>] ? rest_init+0x140/0x140
[   11.263000] Code: 41 5d 5d c3 0f 1f 44 00 00 55 48 8b 7f 70 48 89 e5 e8 cd 9f 6d ff 5d c3 0f 1f 44 00 00 48 8b 47 08 48 83 b8 90 00 00 00 00 75 02 <0f> 0b 55 48 89 e5 41 55 41 54 53 48 83 78 48 00 48 89 fb 74 07 
[   11.263002] RIP  [<ffffffff81b9a436>] driver_register+0x13/0xc6
[   11.263003]  RSP <ffff880157023e60>
[   11.263008] ---[ end trace 7bcc581e18634eeb ]---
[   11.263010] Kernel panic - not syncing: Fatal exception



Thanks,
Ying Huang

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