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| Filename | Latest commit message | Latest commit date |
|---|---|---|
e67fa7fb36
commit 5d26a6a6150c486f51ea2aaab33af04db02f63b8 upstream.
Keeping interrupts on could result in brcmfmac freeing some resources
and then IRQ handlers trying to use them. That was obviously a straight
path for crashing a kernel.
Example:
CPU0 CPU1
---- ----
brcmf_pcie_reset
brcmf_pcie_bus_console_read
brcmf_detach
...
brcmf_fweh_detach
brcmf_proto_detach
brcmf_pcie_isr_thread
...
brcmf_proto_msgbuf_rx_trigger
...
drvr->proto->pd
brcmf_pcie_release_irq
[ 363.789218] Unable to handle kernel NULL pointer dereference at virtual address 00000038
[ 363.797339] pgd = c0004000
[ 363.800050] [00000038] *pgd=00000000
[ 363.803635] Internal error: Oops: 17 [#1] SMP ARM
(...)
[ 364.029209] Backtrace:
[ 364.031725] [<bf243838>] (brcmf_proto_msgbuf_rx_trigger [brcmfmac]) from [<bf2471dc>] (brcmf_pcie_isr_thread+0x228/0x274 [brcmfmac])
[ 364.043662] r7:00000001 r6:c8ca0000 r5:00010000 r4:c7b4f800
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.