tor/changes/ticket28089
David Goulet 2000d04cb6 conn: Stop writing when our write bandwidth limist is exhausted
Commit 488e2b00bf introduced an issue, most
likely introduced by a bad copy paste, that made us stop reading on the
connection if our write bandwidth limit was reached.

The problem is that because "read_blocked_on_bw" was never set, the connection
was never reenabled for reading.

This is most likely the cause of #27813 where bytes were accumulating in the
kernel TCP bufers because tor was not doing reads. Only relays with
RelayBandwidthRate would suffer from this but affecting all relays connecting
to them. And using that tor option is recommended and best practice so many
many relays have it enabled.

Fixes #28089.
2018-10-17 12:25:12 -04:00

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o Major bugfixes (relay):
- When our write bandwidth limit is exhausted, stop writing on the
connection. Previously, we had a typo in the code that would make us stop
reading leading to relay connections being stuck indefinitely. Fixes bug
28089; bugfix on 0.3.4.1-alpha.