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| author | Lars Ellenberg <lars.ellenberg@linbit.com> | 2011-03-09 22:44:55 +0100 |
|---|---|---|
| committer | Philipp Reisner <philipp.reisner@linbit.com> | 2011-05-24 10:03:30 +0200 |
| commit | f36af18c7b4ea1ba333c09b606bb4a7e5af66b4d (patch) | |
| tree | 6983acfaa859fee028b2927f8f520a27e1785c4d /security/min_addr.c | |
| parent | 53ea433145d9a56c7ad5e69f21f5662053e00e84 (diff) | |
| download | blackbird-obmc-linux-f36af18c7b4ea1ba333c09b606bb4a7e5af66b4d.tar.gz blackbird-obmc-linux-f36af18c7b4ea1ba333c09b606bb4a7e5af66b4d.zip | |
drbd: fix disconnect/reconnect loop, if ping-timeout == ping-int
If there is no replication traffic within the idle timeout
(ping-int seconds), DRBD will send a P_PING,
and adjust the timeout to ping-timeout.
If there is no P_PING_ACK received within this ping-timeout,
DRBD finally drops the connection, and tries to re-establish it.
To decide which timeout was active, we compared the current timeout
with the ping-timeout, and dropped the connection, if that was the case.
By default, ping-int is 10 seconds, ping-timeout is 500 ms.
Unfortunately, if you configure ping-timeout to be the same as ping-int,
expiry of the idle-timeout had been mistaken for a missing ping ack,
and caused an immediate reconnection attempt.
Fix:
Allow both timeouts to be equal, use a local variable
to store which timeout is active.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'security/min_addr.c')
0 files changed, 0 insertions, 0 deletions
