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Eric Dumazet says: ==================== inet: add drop monitor support I recently tried to analyse flakes in ip_defrag selftest. This failed miserably. IPv4 and IPv6 reassembly units are causing false kfree_skb() notifications. It is time to deal with this issue. First two patches are changing core networking to better deal with eventual skb frag_list chains, in respect of kfree_skb/consume_skb status. Last three patches are adding three new drop reasons, and make sure skbs that have been reassembled into a large datagram are no longer viewed as dropped ones. After this, understanding why ip_defrag selftest is flaky is possible using standard drop monitoring tools. ==================== Link: https://lore.kernel.org/r/20221029154520.2747444-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@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
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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.