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When, during a join operation, or during message transmission, a group member needs to be added to the group's 'congested' list, we sort it into the list in ascending order, according to its current advertised window size. However, we miss the case when the member is already on that list. This will have the result that the member, after the window size has been decremented, might be at the wrong position in that list. This again may have the effect that we during broadcast and multicast transmissions miss the fact that a destination is not yet ready for reception, and we end up sending anyway. From this point on, the behavior during the remaining session is unpredictable, e.g., with underflowing window sizes. We now correct this bug by unconditionally removing the member from the list before (re-)sorting it in. Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.