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[ Upstream commitfcf88917dd] The commit510ded33e0("slab: implement slab_root_caches list") changes the name of the list node within "struct kmem_cache" from "list" to "root_caches_node", but leaks_show() still use the "list" which causes a crash when reading /proc/slab_allocators. You need to have CONFIG_SLAB=y and CONFIG_MEMCG=y to see the problem, because without MEMCG all slab caches are root caches, and the "list" node happens to be the right one. Fixes:510ded33e0("slab: implement slab_root_caches list") Signed-off-by: Qian Cai <cai@lca.pw> Reviewed-by: Tobin C. Harding <tobin@kernel.org> Cc: Tejun Heo <tj@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.