linux-kernel - [lkp-robot] [platform/x86] a869ab5dab: BUG:unable_to_handle

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Date:   Mon, 27 Feb 2017 09:04:14 +0800
From:   kernel test robot <xiaolong.ye@...el.com>
To:     Alan Jenkins <alan-jenkins@...fmail.co.uk>
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Michał Kępień <kernel@...pniu.pl>,
        Jonathan Woithe <jwoithe@...t42.net>,
        LKML <linux-kernel@...r.kernel.org>,
        Darren Hart <dvhart@...ux.intel.com>,
        platform-driver-x86@...r.kernel.org,
        Darren Hart <dvhart@...radead.org>, lkp@...org
Subject: [lkp-robot] [platform/x86]  a869ab5dab: BUG:unable_to_handle_kernel


FYI, we noticed the following commit:

commit: a869ab5dabf6ec5327a3b2bb366eccf80b207d76 ("platform/x86: fujitsu-laptop: only register backlight device if FUJ02B1 is present")
git://git.infradead.org/users/dvhart/linux-platform-drivers-x86.git testing

in testcase: boot

on test machine: qemu-system-i386 -enable-kvm -m 360M

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):


+------------------------------------------------+------------+------------+
|                                                | 9ef8eac25f | a869ab5dab |
+------------------------------------------------+------------+------------+
| boot_successes                                 | 6          | 0          |
| boot_failures                                  | 2          | 8          |
| IP-Config:Auto-configuration_of_network_failed | 2          |            |
| BUG:unable_to_handle_kernel                    | 0          | 8          |
| Oops                                           | 0          | 8          |
| EIP:fujitsu_init                               | 0          | 8          |
| Kernel_panic-not_syncing:Fatal_exception       | 0          | 8          |
+------------------------------------------------+------------+------------+



[   72.189376] BUG: unable to handle kernel NULL pointer dereference at 00000008
[   72.189376] BUG: unable to handle kernel NULL pointer dereference at 00000008
[   72.205866] IP: fujitsu_init+0x138/0x1ca
[   72.205866] IP: fujitsu_init+0x138/0x1ca
[   72.214905] *pde = 00000000 
[   72.214905] *pde = 00000000 
[   72.214908] 
[   72.214908] 
[   72.225117] Oops: 0002 [#1] SMP
[   72.225117] Oops: 0002 [#1] SMP
[   72.232309] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.10.0-rc6-00054-ga869ab5 #1
[   72.232309] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.10.0-rc6-00054-ga869ab5 #1
[   72.249320] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014
[   72.249320] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014
[   72.272360] task: 80109000 task.stack: 80112000
[   72.272360] task: 80109000 task.stack: 80112000
[   72.282695] EIP: fujitsu_init+0x138/0x1ca
[   72.282695] EIP: fujitsu_init+0x138/0x1ca
[   72.291804] EFLAGS: 00210282 CPU: 0
[   72.291804] EFLAGS: 00210282 CPU: 0
[   72.299878] EAX: 00000000 EBX: 00000000 ECX: 80113ea4 EDX: 00000000
[   72.299878] EAX: 00000000 EBX: 00000000 ECX: 80113ea4 EDX: 00000000
[   72.313941] ESI: 00000000 EDI: 00000000 EBP: 80113f28 ESP: 80113f20
[   72.313941] ESI: 00000000 EDI: 00000000 EBP: 80113f28 ESP: 80113f20
[   72.328172]  DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
[   72.328172]  DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
[   72.340318] CR0: 80050033 CR2: 00000008 CR3: 02aac000 CR4: 00000690
[   72.340318] CR0: 80050033 CR2: 00000008 CR3: 02aac000 CR4: 00000690
[   72.355161] Call Trace:
[   72.355161] Call Trace:
[   72.360932]  ? hdaps_init+0x1bf/0x1bf
[   72.360932]  ? hdaps_init+0x1bf/0x1bf
[   72.369219]  do_one_initcall+0x7e/0x120
[   72.369219]  do_one_initcall+0x7e/0x120
[   72.377941]  ? parse_args+0x19d/0x265
[   72.377941]  ? parse_args+0x19d/0x265
[   72.386243]  ? kernel_init_freeable+0xd7/0x174
[   72.386243]  ? kernel_init_freeable+0xd7/0x174
[   72.396380]  kernel_init_freeable+0xf7/0x174
[   72.396380]  kernel_init_freeable+0xf7/0x174
[   72.406197]  ? rest_init+0x116/0x116
[   72.406197]  ? rest_init+0x116/0x116
[   72.414371]  kernel_init+0xd/0xd5
[   72.414371]  kernel_init+0xd/0xd5
[   72.421916]  ret_from_fork+0x21/0x30
[   72.421916]  ret_from_fork+0x21/0x30
[   72.430121] Code: 00 ba 02 00 00 00 b9 04 00 00 00 66 b8 04 10 e8 ec b2 4e ff 83 f8 03 a1 d8 fd 73 83 5a 8b 40 2c 75 09 c7 40 08 04 00 00 00 eb 07 <c7> 40 08 00 00 00 00 68 a6 83 7a 82 e8 3c b4 70 fe 58 eb 75 a1
[   72.430121] Code: 00 ba 02 00 00 00 b9 04 00 00 00 66 b8 04 10 e8 ec b2 4e ff 83 f8 03 a1 d8 fd 73 83 5a 8b 40 2c 75 09 c7 40 08 04 00 00 00 eb 07 <c7> 40 08 00 00 00 00 68 a6 83 7a 82 e8 3c b4 70 fe 58 eb 75 a1
[   72.472668] EIP: fujitsu_init+0x138/0x1ca SS:ESP: 0068:80113f20
[   72.472668] EIP: fujitsu_init+0x138/0x1ca SS:ESP: 0068:80113f20
[   72.486432] CR2: 0000000000000008
[   72.486432] CR2: 0000000000000008
[   72.493989] ---[ end trace 98e1ae7a776da05b ]---


To reproduce:

        git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> job-script  # job-script is attached in this email



Thanks,
Xiaolong

View attachment "config-4.10.0-rc6-00054-ga869ab5" of type "text/plain" (118237 bytes)

View attachment "job-script" of type "text/plain" (3778 bytes)

Download attachment "dmesg.xz" of type "application/octet-stream" (17976 bytes)