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8fa7ea40bf
When we run out of module space address with ko insertion,
and with MODULE_PLTS, module would turn to try to find memory
from VMALLOC address space.
Unfortunately, with KASAN enabled, VMALLOC doesn't work without
KASAN_VMALLOC, thus select KASAN_VMALLOC by default.
8<--- cut here ---
Unable to handle kernel paging request at virtual address bd300860
[bd300860] *pgd=41cf1811, *pte=41cf26df, *ppte=41cf265f
Internal error: Oops: 80f [#1] PREEMPT SMP ARM
Modules linked in: hello(O+)
CPU: 0 PID: 89 Comm: insmod Tainted: G O 5.16.0-rc6+ #19
Hardware name: Generic DT based system
PC is at mmioset+0x30/0xa8
LR is at 0x0
pc : [<c077ed30>] lr : [<00000000>] psr: 20000013
sp : c451fc18 ip : bd300860 fp : c451fc2c
r10: f18042cc r9 : f18042d0 r8 : 00000000
r7 : 00000001 r6 : 00000003 r5 : 01312d00 r4 : f1804300
r3 : 00000000 r2 : 00262560 r1 : 00000000 r0 : bd300860
Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
Control: 10c5387d Table: 43e9406a DAC: 00000051
Register r0 information: non-paged memory
Register r1 information: NULL pointer
Register r2 information: non-paged memory
Register r3 information: NULL pointer
Register r4 information: 4887-page vmalloc region starting at 0xf1802000 allocated at load_module+0x14f4/0x32a8
Register r5 information: non-paged memory
Register r6 information: non-paged memory
Register r7 information: non-paged memory
Register r8 information: NULL pointer
Register r9 information: 4887-page vmalloc region starting at 0xf1802000 allocated at load_module+0x14f4/0x32a8
Register r10 information: 4887-page vmalloc region starting at 0xf1802000 allocated at load_module+0x14f4/0x32a8
Register r11 information: non-slab/vmalloc memory
Register r12 information: non-paged memory
Process insmod (pid: 89, stack limit = 0xc451c000)
Stack: (0xc451fc18 to 0xc4520000)
fc00: f18041f0 c04803a4
fc20: c451fc44 c451fc30 c048053c c0480358 f1804030 01312cff c451fc64 c451fc48
fc40: c047f330 c0480500 f18040c0 c1b52ccc 00000001 c5be7700 c451fc74 c451fc68
fc60: f1802098 c047f300 c451fcb4 c451fc78 c026106c f180208c c4880004 00000000
fc80: c451fcb4 bf001000 c044ff48 c451fec0 f18040c0 00000000 c1b54cc4 00000000
fca0: c451fdf0 f1804268 c451fe64 c451fcb8 c0264e88 c0260d48 ffff8000 00007fff
fcc0: f18040c0 c025cd00 c451fd14 00000003 0157f008 f1804258 f180425c f1804174
fce0: f1804154 f180424c f18041f0 f180414c f1804178 f18041c0 bf0025d4 188a3fa8
fd00: 0000009e f1804170 f2b18000 c451ff10 c0d92e40 f180416c
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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.
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.