38 lines
1.2 KiB
Diff
38 lines
1.2 KiB
Diff
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From 1b94c10250c7d37423ba894457c40d9799025a93 Mon Sep 17 00:00:00 2001
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From: Joel Colledge <joel.colledge@linbit.com>
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Date: Mon, 11 Sep 2023 09:20:24 +0200
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Subject: [PATCH 10/20] drbd: do not send P_CURRENT_UUID to DRBD 8 peer when
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our disk fails
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DRBD 8 does not understand P_CURRENT_UUID. Skip the peer in
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diskfull_peers_need_new_cur_uuid() to avoid sending such a packet.
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This is valid because the DRBD 8 peer generates a new UUID itself when
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our disk fails.
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This prevents failures of the form:
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drbd res: Unexpected data packet Unknown (0x0044)
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drbd res: peer( Primary -> Unknown ) conn( Connected -> ProtocolError ) pdsk( Failed -> DUnknown )
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---
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drbd/drbd_main.c | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/drbd/drbd_main.c b/drbd/drbd_main.c
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index ccf0f72829db..e6ed1185c710 100644
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--- a/drbd/drbd_main.c
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+++ b/drbd/drbd_main.c
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@@ -4614,6 +4614,9 @@ static bool diskfull_peers_need_new_cur_uuid(struct drbd_device *device)
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rcu_read_lock();
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for_each_peer_device_rcu(peer_device, device) {
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+ if (peer_device->connection->agreed_pro_version < 110)
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+ continue;
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+
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/* Only an up-to-date peer persists a new current uuid! */
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if (peer_device->disk_state[NOW] < D_UP_TO_DATE)
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continue;
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--
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2.35.3
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