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56cef47c28
This test fails the first time I am running it after a fresh virtme-ng boot. tcp_user_timeout_user-timeout-probe.pkt:33: runtime error in write call: Expected result -1 but got 24 with errno 2 (No such file or directory) Tweaks the timings a bit, to reduce flakiness. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Soham Chakradeo <sohamch@google.com> Cc: Willem de Bruijn <willemb@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com> Tested-by: Jamal Hadi Salim <jhs@mojatatu.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Link: https://patch.msgid.link/20251014171907.3554413-2-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
40 lines
1.2 KiB
Plaintext
40 lines
1.2 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0
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`./defaults.sh`
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0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
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+0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
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+0 bind(3, ..., ...) = 0
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+0 listen(3, 1) = 0
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+0 < S 0:0(0) win 0 <mss 1460>
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+0 > S. 0:0(0) ack 1 <mss 1460>
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+.1 < . 1:1(0) ack 1 win 65530
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+0 accept(3, ..., ...) = 4
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+0 setsockopt(4, SOL_TCP, TCP_USER_TIMEOUT, [3000], 4) = 0
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+0 write(4, ..., 24) = 24
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+0 > P. 1:25(24) ack 1
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+.1 < . 1:1(0) ack 25 win 65530
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+0 %{ assert tcpi_probes == 0, tcpi_probes; \
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assert tcpi_backoff == 0, tcpi_backoff }%
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// install a qdisc dropping all packets
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+0 `tc qdisc delete dev tun0 root 2>/dev/null ; tc qdisc add dev tun0 root pfifo limit 0`
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+0 write(4, ..., 24) = 24
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// When qdisc is congested we retry every 500ms
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// (TCP_RESOURCE_PROBE_INTERVAL) and therefore
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// we retry 6 times before hitting 3s timeout.
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// First verify that the connection is alive:
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+3 write(4, ..., 24) = 24
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// Now verify that shortly after that the socket is dead:
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+1 write(4, ..., 24) = -1 ETIMEDOUT (Connection timed out)
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+0 %{ assert tcpi_probes == 6, tcpi_probes; \
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assert tcpi_backoff == 0, tcpi_backoff }%
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+0 close(4) = 0
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