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BUG/MAJOR: stream_interface: certain workloads could cause get stuck

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Some very specifically scheduled workloads could sometimes get stuck when
data receive was disabled due to buffer full then re-enabled due to a full
send(). A conn_data_want_recv() had to be set again in this specific case.

This bug was introduced with connection rework and polling changes in dev12.
This commit is contained in:
Willy Tarreau 2012-11-19 16:43:14 +01:00
parent bc174aa144
commit 9f7c6a183b
1 changed files with 2 additions and 0 deletions

2
src/stream_interface.c
View File

@ -578,6 +578,8 @@ static int si_conn_wake_cb(struct connection *conn)
}
else if ((si->ib->flags & (CF_SHUTR|CF_READ_PARTIAL|CF_DONT_READ|CF_READ_NOEXP)) == CF_READ_PARTIAL &&
!channel_full(si->ib)) {
/* we must re-enable reading if si_chk_snd() has freed some space */
__conn_data_want_recv(conn);
if (tick_isset(si->ib->rex))
si->ib->rex = tick_add_ifset(now_ms, si->ib->rto);
}