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The kmemleak code sometimes complains about the following leak: unreferenced object 0xffff8000102e0000 (size 32768): comm "swapper/0", pid 1, jiffies 4294937323 (age 71.240s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000db9a88a3>] __vmalloc_node_range+0x324/0x450 [<00000000ff8903a4>] __vmalloc_node+0x90/0xd0 [<000000001a06634f>] arm64_efi_rt_init+0x64/0xdc [<0000000007826a8d>] do_one_initcall+0x178/0xac0 [<0000000054a87017>] do_initcalls+0x190/0x1d0 [<00000000308092d0>] kernel_init_freeable+0x2c0/0x2f0 [<000000003e7b99e0>] kernel_init+0x28/0x14c [<000000002246af5b>] ret_from_fork+0x10/0x20 The memory object in this case is for efi_rt_stack_top and is allocated in an initcall. So this is certainly a false positive. Mark the object as not a leak to quash it. Signed-off-by: Waiman Long <longman@redhat.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> |
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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 reStructuredText 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.