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With extra_space negative, it means that the "notsent" queue is quite large so we must consider that value with the current computed tcp_space. If we end up to have negative space, we should not add more data to the kernel since the notsent queue is just too filled up. Fixes #24665 Signed-off-by: David Goulet <dgoulet@torproject.org>
7 lines
416 B
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7 lines
416 B
Plaintext
o Major bugfixes (KIST, scheduler):
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- The KIST scheduler did not correctly account for data already enqueued
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in each connection's send socket buffer, particularly in cases when the
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TCP/IP congestion window was reduced between scheduler calls. This
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situation lead to excessive per-connection buffering in the kernel, and
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a potential memory DoS. Fixes bug 24665; bugfix on 0.3.2.1-alpha.
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