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f0600fe949
Three tests are cooking GSO packets but do not provide gso_size information to the kernel, triggering this message: TCP: tun0: Driver has suspect GRO implementation, TCP performance may be compromised. Add --mss option to avoid this warning. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250710155641.3028726-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
32 lines
823 B
Plaintext
32 lines
823 B
Plaintext
// SPDX-License-Identifier: GPL-2.0
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// Test for blocking read.
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--tolerance_usecs=10000
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--mss=1000
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`./defaults.sh`
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// Establish a connection.
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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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+.1 < S 0:0(0) win 32792 <mss 1000,nop,wscale 7>
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+0 > S. 0:0(0) ack 1 <mss 1460,nop,wscale 8>
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+.1 < . 1:1(0) ack 1 win 257
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+0 accept(3, ..., ...) = 4
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+0...0.100 read(4, ..., 2000) = 2000
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+.1 < P. 1:2001(2000) ack 1 win 257
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+0 > . 1:1(0) ack 2001
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+.1...0.200 read(4, ..., 2000) = 2000
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+.1 < P. 2001:4001(2000) ack 1 win 257
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+0 > . 1:1(0) ack 4001
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+.1 < P. 4001:6001(2000) ack 1 win 257
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+0 > . 1:1(0) ack 6001
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+0...0.000 read(4, ..., 1000) = 1000
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+0...0.000 read(4, ..., 1000) = 1000
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