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![]() This patch fix the below kernel crash.
BUG: Unable to handle kernel data access on read at 0xc000000380000000
Faulting instruction address: 0xc00000000008b6f0
cpu 0x5: Vector: 300 (Data Access) at [c0000000d8587790]
pc: c00000000008b6f0: arch_remove_memory+0x150/0x210
lr: c00000000008b720: arch_remove_memory+0x180/0x210
sp: c0000000d8587a20
msr: 800000000280b033
dar: c000000380000000
dsisr: 40000000
current = 0xc0000000d8558600
paca = 0xc00000000fff8f00 irqmask: 0x03 irq_happened: 0x01
pid = 1220, comm = ndctl
enter ? for help
memunmap_pages+0x33c/0x410
devm_action_release+0x30/0x50
release_nodes+0x30c/0x3a0
device_release_driver_internal+0x178/0x240
unbind_store+0x74/0x190
drv_attr_store+0x44/0x60
sysfs_kf_write+0x74/0xa0
kernfs_fop_write+0x1b0/0x260
__vfs_write+0x3c/0x70
vfs_write+0xe4/0x200
ksys_write+0x7c/0x140
system_call+0x5c/0x68
Fixes:
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||
---|---|---|
arch | ||
block | ||
certs | ||
crypto | ||
Documentation | ||
drivers | ||
fs | ||
include | ||
init | ||
ipc | ||
kernel | ||
lib | ||
LICENSES | ||
mm | ||
net | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
virt | ||
.clang-format | ||
.cocciconfig | ||
.get_maintainer.ignore | ||
.gitattributes | ||
.gitignore | ||
.mailmap | ||
COPYING | ||
CREDITS | ||
Kbuild | ||
Kconfig | ||
MAINTAINERS | ||
Makefile | ||
README |
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.