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| Filename | Latest commit message | Latest commit date |
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commit aa4e460f0976351fddd2f5ac6e08b74320c277a1 upstream.
Commit 4d004099a668 ("lockdep: Fix lockdep recursion") uncovered the
following issue in lib/crc32test reported on s390:
BUG: using __this_cpu_read() in preemptible [00000000] code: swapper/0/1
caller is lockdep_hardirqs_on_prepare+0x48/0x270
CPU: 6 PID: 1 Comm: swapper/0 Not tainted 5.9.0-next-20201015-15164-g03d992bd2de6 #19
Hardware name: IBM 3906 M04 704 (LPAR)
Call Trace:
lockdep_hardirqs_on_prepare+0x48/0x270
trace_hardirqs_on+0x9c/0x1b8
crc32_test.isra.0+0x170/0x1c0
crc32test_init+0x1c/0x40
do_one_initcall+0x40/0x130
do_initcalls+0x126/0x150
kernel_init_freeable+0x1f6/0x230
kernel_init+0x22/0x150
ret_from_fork+0x24/0x2c
no locks held by swapper/0/1.
Remove extra local_irq_disable/local_irq_enable helpers calls.
Fixes:
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| kernel | ||
| lib | ||
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| 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.