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16018dd3fd
[ 1.162571] Unable to handle kernel NULL pointer dereference at virtual address 00000200 [ 1.165656] Modules linked in: [ 1.165941] CPU: 5 PID: 143 Comm: kworker/5:2 Not tainted 4.4.15 #237 [ 1.166506] Hardware name: Rockchip RK3399 Evaluation Board v1 (Android) (DT) [ 1.167153] Workqueue: events output_poll_execute [ 1.168231] PC is at mutex_lock+0x14/0x44 [ 1.168586] LR is at drm_fb_helper_hotplug_event+0x28/0xcc [ 1.172192] [<ffffff8008982110>] mutex_lock+0x14/0x44 [ 1.172196] [<ffffff80084025a4>] drm_fb_helper_hotplug_event+0x28/0xcc [ 1.172201] [<ffffff8008427ae4>] rockchip_drm_output_poll_changed+0x14/0x1c [ 1.172204] [<ffffff80083f7c4c>] drm_kms_helper_hotplug_event+0x28/0x34 [ 1.172207] [<ffffff80083f7ddc>] output_poll_execute+0x150/0x198 [ 1.172212] [<ffffff80080b0ea8>] process_one_work+0x218/0x3dc [ 1.172215] [<ffffff80080b1578>] worker_thread+0x24c/0x374 [ 1.172217] [<ffffff80080b5bcc>] kthread+0xdc/0xe4 [ 1.172222] [<ffffff8008084cd0>] ret_from_fork+0x10/0x40 Change-Id: I681b9260ad7f2e3cae5cd08a109dad89b3575c2c Signed-off-by: Mark Yao <mark.yao@rock-chips.com> Signed-off-by: Sandy Huang <hjc@rock-chips.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.