Intermittent copyfd_io_poll: poll timed out in mptcp_join.sh #165
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is this a dbg build? do you know the relevant kernel config? |
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The kernel config isn't copied to the build artifacts - I'll ask the kbuild team to start doing that, and see if they can provide a copy some other way. I will probably get a response before the end of (my) day. What I can see now is that they copy a 'kconfig/x86_64-rhel-8.3' file to .config, and then run 'make olddefconfig' on our export branch. Not sure if that is the stock RHEL config or a modified one. |
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Here's the .config: |
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note to self: "desktop" config: no KASAN, no KMEMLEAK, |
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My CI just reported the same issue with a debug kernel: Debug kernel means having these config enabled: |
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Here is the same error but now with more details (nstat + more options with ss) asked by @pabeni : |
The test output is quite misleading: the failing test is actually the next one, that is: 11 multiple flows, signal, link failure note: you can double check looking at the amount of transferred data, which is 1K in both direction except fot link failure tests, which will use much more data on the client side. Looks like we are not doing mptcp level retransmissions for some reasons... |
matttbe
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__mptcp_clean_una() can free write memory and should wake-up user-space processes when needed. When such function is invoked by the MPTCP receive path, the wakeup is not needed, as the TCP stack will later trigger subflow_write_space which will do the wakeup as needed. Other __mptcp_clean_una() call sites need an additional wakeup check Let's bundle the relevant code in a new helper and use it. Closes: #165 Fixes: 6e628cd ("mptcp: use mptcp release_cb for delayed tasks") Fixes: 64b9cea ("mptcp: fix spurious retransmissions") Tested-by: Matthieu Baerts <[email protected]> Reviewed-by: Mat Martineau <[email protected]> Signed-off-by: Paolo Abeni <[email protected]>
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__mptcp_clean_una() can free write memory and should wake-up user-space processes when needed. When such function is invoked by the MPTCP receive path, the wakeup is not needed, as the TCP stack will later trigger subflow_write_space which will do the wakeup as needed. Other __mptcp_clean_una() call sites need an additional wakeup check Let's bundle the relevant code in a new helper and use it. Closes: #165 Fixes: 6e628cd ("mptcp: use mptcp release_cb for delayed tasks") Fixes: 64b9cea ("mptcp: fix spurious retransmissions") Tested-by: Matthieu Baerts <[email protected]> Reviewed-by: Mat Martineau <[email protected]> Signed-off-by: Paolo Abeni <[email protected]>
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__mptcp_clean_una() can free write memory and should wake-up user-space processes when needed. When such function is invoked by the MPTCP receive path, the wakeup is not needed, as the TCP stack will later trigger subflow_write_space which will do the wakeup as needed. Other __mptcp_clean_una() call sites need an additional wakeup check Let's bundle the relevant code in a new helper and use it. Closes: #165 Fixes: 6e628cd ("mptcp: use mptcp release_cb for delayed tasks") Fixes: 64b9cea ("mptcp: fix spurious retransmissions") Tested-by: Matthieu Baerts <[email protected]> Reviewed-by: Mat Martineau <[email protected]> Signed-off-by: Paolo Abeni <[email protected]>
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__mptcp_clean_una() can free write memory and should wake-up user-space processes when needed. When such function is invoked by the MPTCP receive path, the wakeup is not needed, as the TCP stack will later trigger subflow_write_space which will do the wakeup as needed. Other __mptcp_clean_una() call sites need an additional wakeup check Let's bundle the relevant code in a new helper and use it. Closes: #165 Fixes: 6e628cd ("mptcp: use mptcp release_cb for delayed tasks") Fixes: 64b9cea ("mptcp: fix spurious retransmissions") Tested-by: Matthieu Baerts <[email protected]> Reviewed-by: Mat Martineau <[email protected]> Signed-off-by: Paolo Abeni <[email protected]>
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__mptcp_clean_una() can free write memory and should wake-up user-space processes when needed. When such function is invoked by the MPTCP receive path, the wakeup is not needed, as the TCP stack will later trigger subflow_write_space which will do the wakeup as needed. Other __mptcp_clean_una() call sites need an additional wakeup check Let's bundle the relevant code in a new helper and use it. Closes: multipath-tcp#165 Fixes: 6e628cd ("mptcp: use mptcp release_cb for delayed tasks") Fixes: 64b9cea ("mptcp: fix spurious retransmissions") Tested-by: Matthieu Baerts <[email protected]> Reviewed-by: Mat Martineau <[email protected]> Signed-off-by: Paolo Abeni <[email protected]>
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__mptcp_clean_una() can free write memory and should wake-up user-space processes when needed. When such function is invoked by the MPTCP receive path, the wakeup is not needed, as the TCP stack will later trigger subflow_write_space which will do the wakeup as needed. Other __mptcp_clean_una() call sites need an additional wakeup check Let's bundle the relevant code in a new helper and use it. Closes: multipath-tcp#165 Fixes: 6e628cd ("mptcp: use mptcp release_cb for delayed tasks") Fixes: 64b9cea ("mptcp: fix spurious retransmissions") Tested-by: Matthieu Baerts <[email protected]> Reviewed-by: Mat Martineau <[email protected]> Signed-off-by: Paolo Abeni <[email protected]>
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__mptcp_clean_una() can free write memory and should wake-up user-space processes when needed. When such function is invoked by the MPTCP receive path, the wakeup is not needed, as the TCP stack will later trigger subflow_write_space which will do the wakeup as needed. Other __mptcp_clean_una() call sites need an additional wakeup check Let's bundle the relevant code in a new helper and use it. Closes: multipath-tcp#165 Fixes: 6e628cd ("mptcp: use mptcp release_cb for delayed tasks") Fixes: 64b9cea ("mptcp: fix spurious retransmissions") Tested-by: Matthieu Baerts <[email protected]> Reviewed-by: Mat Martineau <[email protected]> Signed-off-by: Paolo Abeni <[email protected]>
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__mptcp_clean_una() can free write memory and should wake-up user-space processes when needed. When such function is invoked by the MPTCP receive path, the wakeup is not needed, as the TCP stack will later trigger subflow_write_space which will do the wakeup as needed. Other __mptcp_clean_una() call sites need an additional wakeup check Let's bundle the relevant code in a new helper and use it. Closes: multipath-tcp#165 Fixes: 6e628cd ("mptcp: use mptcp release_cb for delayed tasks") Fixes: 64b9cea ("mptcp: fix spurious retransmissions") Tested-by: Matthieu Baerts <[email protected]> Reviewed-by: Mat Martineau <[email protected]> Signed-off-by: Paolo Abeni <[email protected]>
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__mptcp_clean_una() can free write memory and should wake-up user-space processes when needed. When such function is invoked by the MPTCP receive path, the wakeup is not needed, as the TCP stack will later trigger subflow_write_space which will do the wakeup as needed. Other __mptcp_clean_una() call sites need an additional wakeup check Let's bundle the relevant code in a new helper and use it. Closes: multipath-tcp#165 Fixes: 6e628cd ("mptcp: use mptcp release_cb for delayed tasks") Fixes: 64b9cea ("mptcp: fix spurious retransmissions") Tested-by: Matthieu Baerts <[email protected]> Reviewed-by: Mat Martineau <[email protected]> Signed-off-by: Paolo Abeni <[email protected]>
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__mptcp_clean_una() can free write memory and should wake-up user-space processes when needed. When such function is invoked by the MPTCP receive path, the wakeup is not needed, as the TCP stack will later trigger subflow_write_space which will do the wakeup as needed. Other __mptcp_clean_una() call sites need an additional wakeup check Let's bundle the relevant code in a new helper and use it. Closes: multipath-tcp#165 Fixes: 6e628cd ("mptcp: use mptcp release_cb for delayed tasks") Fixes: 64b9cea ("mptcp: fix spurious retransmissions") Tested-by: Matthieu Baerts <[email protected]> Reviewed-by: Mat Martineau <[email protected]> Signed-off-by: Paolo Abeni <[email protected]>
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__mptcp_clean_una() can free write memory and should wake-up user-space processes when needed. When such function is invoked by the MPTCP receive path, the wakeup is not needed, as the TCP stack will later trigger subflow_write_space which will do the wakeup as needed. Other __mptcp_clean_una() call sites need an additional wakeup check Let's bundle the relevant code in a new helper and use it. Closes: multipath-tcp/mptcp_net-next#165 Fixes: 6e628cd ("mptcp: use mptcp release_cb for delayed tasks") Fixes: 64b9cea ("mptcp: fix spurious retransmissions") Tested-by: Matthieu Baerts <[email protected]> Signed-off-by: Paolo Abeni <[email protected]> Signed-off-by: Mat Martineau <[email protected]>
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__mptcp_clean_una() can free write memory and should wake-up user-space processes when needed. When such function is invoked by the MPTCP receive path, the wakeup is not needed, as the TCP stack will later trigger subflow_write_space which will do the wakeup as needed. Other __mptcp_clean_una() call sites need an additional wakeup check Let's bundle the relevant code in a new helper and use it. Closes: multipath-tcp/mptcp_net-next#165 Fixes: 6e628cd ("mptcp: use mptcp release_cb for delayed tasks") Fixes: 64b9cea ("mptcp: fix spurious retransmissions") Tested-by: Matthieu Baerts <[email protected]> Signed-off-by: Paolo Abeni <[email protected]> Signed-off-by: Mat Martineau <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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__mptcp_clean_una() can free write memory and should wake-up user-space processes when needed. When such function is invoked by the MPTCP receive path, the wakeup is not needed, as the TCP stack will later trigger subflow_write_space which will do the wakeup as needed. Other __mptcp_clean_una() call sites need an additional wakeup check Let's bundle the relevant code in a new helper and use it. Closes: #165 Fixes: 6e628cd ("mptcp: use mptcp release_cb for delayed tasks") Fixes: 64b9cea ("mptcp: fix spurious retransmissions") Tested-by: Matthieu Baerts <[email protected]> Reviewed-by: Mat Martineau <[email protected]> Signed-off-by: Paolo Abeni <[email protected]>
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__mptcp_clean_una() can free write memory and should wake-up user-space processes when needed. When such function is invoked by the MPTCP receive path, the wakeup is not needed, as the TCP stack will later trigger subflow_write_space which will do the wakeup as needed. Other __mptcp_clean_una() call sites need an additional wakeup check Let's bundle the relevant code in a new helper and use it. Closes: #165 Fixes: 6e628cd ("mptcp: use mptcp release_cb for delayed tasks") Fixes: 64b9cea ("mptcp: fix spurious retransmissions") Tested-by: Matthieu Baerts <[email protected]> Reviewed-by: Mat Martineau <[email protected]> Signed-off-by: Paolo Abeni <[email protected]>
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__mptcp_clean_una() can free write memory and should wake-up user-space processes when needed. When such function is invoked by the MPTCP receive path, the wakeup is not needed, as the TCP stack will later trigger subflow_write_space which will do the wakeup as needed. Other __mptcp_clean_una() call sites need an additional wakeup check Let's bundle the relevant code in a new helper and use it. Closes: #165 Fixes: 6e628cd ("mptcp: use mptcp release_cb for delayed tasks") Fixes: 64b9cea ("mptcp: fix spurious retransmissions") Tested-by: Matthieu Baerts <[email protected]> Reviewed-by: Mat Martineau <[email protected]> Signed-off-by: Paolo Abeni <[email protected]>
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__mptcp_clean_una() can free write memory and should wake-up user-space processes when needed. When such function is invoked by the MPTCP receive path, the wakeup is not needed, as the TCP stack will later trigger subflow_write_space which will do the wakeup as needed. Other __mptcp_clean_una() call sites need an additional wakeup check Let's bundle the relevant code in a new helper and use it. Closes: #165 Fixes: 6e628cd ("mptcp: use mptcp release_cb for delayed tasks") Fixes: 64b9cea ("mptcp: fix spurious retransmissions") Tested-by: Matthieu Baerts <[email protected]> Reviewed-by: Mat Martineau <[email protected]> Signed-off-by: Paolo Abeni <[email protected]>
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Add a cgroup bpf program test where the bpf program is running in a pid namespace. The test is successfully: #165/3 ns_current_pid_tgid/new_ns_cgrp:OK Signed-off-by: Yonghong Song <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
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Add a sk_msg bpf program test where the program is running in a pid namespace. The test is successful: #165/4 ns_current_pid_tgid/new_ns_sk_msg:OK Signed-off-by: Yonghong Song <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
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Recent additions in BPF like cpu v4 instructions, test_bpf module exhibits the following failures: test_bpf: #82 ALU_MOVSX | BPF_B jited:1 ret 2 != 1 (0x2 != 0x1)FAIL (1 times) test_bpf: #83 ALU_MOVSX | BPF_H jited:1 ret 2 != 1 (0x2 != 0x1)FAIL (1 times) test_bpf: #84 ALU64_MOVSX | BPF_B jited:1 ret 2 != 1 (0x2 != 0x1)FAIL (1 times) test_bpf: #85 ALU64_MOVSX | BPF_H jited:1 ret 2 != 1 (0x2 != 0x1)FAIL (1 times) test_bpf: #86 ALU64_MOVSX | BPF_W jited:1 ret 2 != 1 (0x2 != 0x1)FAIL (1 times) test_bpf: #165 ALU_SDIV_X: -6 / 2 = -3 jited:1 ret 2147483645 != -3 (0x7ffffffd != 0xfffffffd)FAIL (1 times) test_bpf: #166 ALU_SDIV_K: -6 / 2 = -3 jited:1 ret 2147483645 != -3 (0x7ffffffd != 0xfffffffd)FAIL (1 times) test_bpf: #169 ALU_SMOD_X: -7 % 2 = -1 jited:1 ret 1 != -1 (0x1 != 0xffffffff)FAIL (1 times) test_bpf: #170 ALU_SMOD_K: -7 % 2 = -1 jited:1 ret 1 != -1 (0x1 != 0xffffffff)FAIL (1 times) test_bpf: #172 ALU64_SMOD_K: -7 % 2 = -1 jited:1 ret 1 != -1 (0x1 != 0xffffffff)FAIL (1 times) test_bpf: #313 BSWAP 16: 0x0123456789abcdef -> 0xefcd eBPF filter opcode 00d7 (@2) unsupported jited:0 301 PASS test_bpf: #314 BSWAP 32: 0x0123456789abcdef -> 0xefcdab89 eBPF filter opcode 00d7 (@2) unsupported jited:0 555 PASS test_bpf: #315 BSWAP 64: 0x0123456789abcdef -> 0x67452301 eBPF filter opcode 00d7 (@2) unsupported jited:0 268 PASS test_bpf: #316 BSWAP 64: 0x0123456789abcdef >> 32 -> 0xefcdab89 eBPF filter opcode 00d7 (@2) unsupported jited:0 269 PASS test_bpf: #317 BSWAP 16: 0xfedcba9876543210 -> 0x1032 eBPF filter opcode 00d7 (@2) unsupported jited:0 460 PASS test_bpf: #318 BSWAP 32: 0xfedcba9876543210 -> 0x10325476 eBPF filter opcode 00d7 (@2) unsupported jited:0 320 PASS test_bpf: #319 BSWAP 64: 0xfedcba9876543210 -> 0x98badcfe eBPF filter opcode 00d7 (@2) unsupported jited:0 222 PASS test_bpf: #320 BSWAP 64: 0xfedcba9876543210 >> 32 -> 0x10325476 eBPF filter opcode 00d7 (@2) unsupported jited:0 273 PASS test_bpf: #344 BPF_LDX_MEMSX | BPF_B eBPF filter opcode 0091 (@5) unsupported jited:0 432 PASS test_bpf: #345 BPF_LDX_MEMSX | BPF_H eBPF filter opcode 0089 (@5) unsupported jited:0 381 PASS test_bpf: #346 BPF_LDX_MEMSX | BPF_W eBPF filter opcode 0081 (@5) unsupported jited:0 505 PASS test_bpf: #490 JMP32_JA: Unconditional jump: if (true) return 1 eBPF filter opcode 0006 (@1) unsupported jited:0 261 PASS test_bpf: Summary: 1040 PASSED, 10 FAILED, [924/1038 JIT'ed] Fix them by adding missing processing. Fixes: daabb2b ("bpf/tests: add tests for cpuv4 instructions") Signed-off-by: Christophe Leroy <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://msgid.link/91de862dda99d170697eb79ffb478678af7e0b27.1709652689.git.christophe.leroy@csgroup.eu
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kbuild is showing an intermittent error in mptcp_join.sh, with the 'multiple subflows and signal' test:
This has "copyfd_io_poll: poll timed out" like #147, but the sockets are in different states and this is with mptcp_join.sh rather than mptcp_connect.sh. I haven't reproduced this locally to see why both sockets have data in their send-qs.
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