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failed [ 10.939320] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 10.940116] Mem abort info: [ 10.940373] ESR = 0x86000006 [ 10.940652] Exception class = IABT (current EL), IL = 32 bits [ 10.941181] SET = 0, FnV = 0 [ 10.941458] EA = 0, S1PTW = 0 [ 10.941741] user pgtable: 4k pages, 39-bit VAs, pgdp = 00000000c7870e86 [ 10.942328] [0000000000000000] pgd=0000000059e40003, pud=0000000059e40003, pmd=0000000000000000 [ 10.943150] Internal error: Oops: 86000006 [#1] PREEMPT SMP [ 10.943656] Modules linked in: [ 10.943940] Process servicemanager (pid: 141, stack limit = 0x000000001d4803a1) [ 10.944585] CPU: 0 PID: 141 Comm: servicemanager Not tainted 4.19.172 #1156 [ 10.945192] Hardware name: Rockchip RK3566 RK817 EINK LP4X Board (DT) [ 10.945754] pstate: 60400009 (nZCv daif +PAN -UAO) [ 10.946179] pc : (null) [ 10.946496] lr : call_timer_fn+0x2c/0x1c0 [ 10.946854] sp : ffffff8008003dd0 [ 10.947155] x29: ffffff8008003dd0 x28: ffffff8009ca5000 [ 10.947627] x27: ffffff80099a2000 x26: 0000000000000100 [ 10.948099] x25: 0000000000000010 x24: ffffff8009cadb00 [ 10.948571] x23: ffffff80099a1018 x22: 0000000000000100 [ 10.949043] x21: 0000000000000000 x20: ffffffc05ca13320 [ 10.949515] x19: ffffffc05ca13320 x18: 0000000000000000 [ 10.949986] x17: 0000000000000000 x16: 0000000000000000 [ 10.950458] x15: 0000000000000000 x14: 0000000000000000 Signed-off-by: Zorro Liu <lyx@rock-chips.com> Change-Id: I6bc332ac3f9904e95414f5769dc57dd742c8e7fc
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.