x/net/bpf: failures about BPF packet outputs not matching #55235

gopherbot · 2022-09-20T04:44:51Z

#!watchflakes
post <- pkg == "golang.org/x/net/bpf" && `Go BPF and OS BPF packet outputs do not match`

Bug automatically created to track these flakes.

— watchflakes

The text was updated successfully, but these errors were encountered:

gopherbot · 2022-09-20T04:44:52Z

Found new matching flaky dashboard failures for:

#!watchflakes
post <- pkg == "golang.org/x/net/bpf" && test == "TestVMALUOpAdd"

2022-09-09 16:43 linux-s390x-ibm net@bea034e7 go@7c87012f golang.org/x/net/bpf.TestVMALUOpAdd (log)

--- FAIL: TestVMALUOpAdd (0.28s)
    vm_bpf_test.go:122: output byte count does not match:
        - go: 3
        - os: 0
    vm_bpf_test.go:126: Go BPF and OS BPF packet outputs do not match

— watchflakes

gopherbot · 2022-09-21T19:00:45Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "golang.org/x/net/bpf" && `Go BPF and OS BPF packet outputs do not match`

2022-09-20 18:38 linux-s390x-ibm net@bf014ff8 go@bcd44b61 x/net/bpf.TestVMLoadConstantOK (log)

--- FAIL: TestVMLoadConstantOK (0.12s)
    vm_bpf_test.go:122: output byte count does not match:
        - go: 1
        - os: 0
    vm_bpf_test.go:126: Go BPF and OS BPF packet outputs do not match

— watchflakes

gopherbot · 2022-10-04T18:44:03Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "golang.org/x/net/bpf" && `Go BPF and OS BPF packet outputs do not match`

2022-10-04 15:45 linux-ppc64-buildlet net@8021a294 go@89566448 x/net/bpf.TestVMALUOpShiftLeft (log)

--- FAIL: TestVMALUOpShiftLeft (0.08s)
    vm_bpf_test.go:122: output byte count does not match:
        - go: 1
        - os: 0
    vm_bpf_test.go:126: Go BPF and OS BPF packet outputs do not match

— watchflakes

gopherbot · 2022-10-14T08:26:03Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "golang.org/x/net/bpf" && `Go BPF and OS BPF packet outputs do not match`

2022-10-14 08:14 linux-s390x-ibm net@f15817d1 go@89566448 x/net/bpf.TestVMALUOpAdd (log)

--- FAIL: TestVMALUOpAdd (0.12s)
    vm_bpf_test.go:122: output byte count does not match:
        - go: 3
        - os: 0
    vm_bpf_test.go:126: Go BPF and OS BPF packet outputs do not match

— watchflakes

gopherbot · 2022-10-18T23:53:31Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "golang.org/x/net/bpf" && `Go BPF and OS BPF packet outputs do not match`

2022-10-17 15:22 linux-s390x-ibm net@f25eb7ec go@947091d3 x/net/bpf.TestVMALUOpAdd (log)

--- FAIL: TestVMALUOpAdd (0.41s)
    vm_bpf_test.go:122: output byte count does not match:
        - go: 3
        - os: 0
    vm_bpf_test.go:126: Go BPF and OS BPF packet outputs do not match

— watchflakes

gopherbot · 2022-10-20T15:17:04Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "golang.org/x/net/bpf" && `Go BPF and OS BPF packet outputs do not match`

2022-10-20 15:09 linux-s390x-ibm net@da05058a go@4b5558ef x/net/bpf.TestVMALUOpAdd (log)

--- FAIL: TestVMALUOpAdd (0.58s)
    vm_bpf_test.go:122: output byte count does not match:
        - go: 3
        - os: 0
    vm_bpf_test.go:126: Go BPF and OS BPF packet outputs do not match

— watchflakes

gopherbot · 2022-11-17T16:07:11Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "golang.org/x/net/bpf" && `Go BPF and OS BPF packet outputs do not match`

2022-11-07 21:06 linux-mips-rtrk net@a2d827a3 go@ea4631cc x/net/bpf.TestVMJumpIfXGreaterThan (log)

--- FAIL: TestVMJumpIfXGreaterThan (0.06s)
    vm_bpf_test.go:122: output byte count does not match:
        - go: 4
        - os: 0
    vm_bpf_test.go:126: Go BPF and OS BPF packet outputs do not match

— watchflakes

gopherbot · 2023-01-31T19:10:43Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "golang.org/x/net/bpf" && `Go BPF and OS BPF packet outputs do not match`

2023-01-26 21:33 linux-s390x-ibm net@296f09aa go@dfd2ddd6 x/net/bpf.TestVMStoreScratchLoadScratchMultipleValues (log)

--- FAIL: TestVMStoreScratchLoadScratchMultipleValues (0.07s)
    vm_bpf_test.go:122: output byte count does not match:
        - go: 2
        - os: 0
    vm_bpf_test.go:126: Go BPF and OS BPF packet outputs do not match

— watchflakes

gopherbot · 2023-04-08T05:53:52Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "golang.org/x/net/bpf" && `Go BPF and OS BPF packet outputs do not match`

2023-04-07 18:10 linux-s390x-ibm net@3d5a8ee7 go@66cac9e1 x/net/bpf.TestVMALUOpOr (log)

--- FAIL: TestVMALUOpOr (0.07s)
    vm_bpf_test.go:122: output byte count does not match:
        - go: 9
        - os: 0
    vm_bpf_test.go:126: Go BPF and OS BPF packet outputs do not match

— watchflakes

gopherbot · 2023-04-19T02:14:58Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "golang.org/x/net/bpf" && `Go BPF and OS BPF packet outputs do not match`

2023-04-17 17:44 linux-s390x-ibm net@eb1572ce go@fd786a55 x/net/bpf.TestVMLoadMemShiftLoadIndirectOK (log)

--- FAIL: TestVMLoadMemShiftLoadIndirectOK (0.08s)
    vm_bpf_test.go:122: output byte count does not match:
        - go: 28
        - os: 0
    vm_bpf_test.go:126: Go BPF and OS BPF packet outputs do not match

— watchflakes

gopherbot · 2023-04-19T03:39:12Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "golang.org/x/net/bpf" && `Go BPF and OS BPF packet outputs do not match`

2023-04-17 17:44 linux-s390x-ibm net@eb1572ce go@130a7f8e x/net/bpf.TestVMALUOpAdd (log)

--- FAIL: TestVMALUOpAdd (0.20s)
    vm_bpf_test.go:122: output byte count does not match:
        - go: 3
        - os: 0
    vm_bpf_test.go:126: Go BPF and OS BPF packet outputs do not match

— watchflakes

gopherbot · 2023-04-21T19:14:16Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "golang.org/x/net/bpf" && `Go BPF and OS BPF packet outputs do not match`

2023-04-19 19:08 linux-s390x-ibm net@938ff153 go@e23322e2 x/net/bpf.TestVMALUOpMul (log)

--- FAIL: TestVMALUOpMul (0.06s)
    vm_bpf_test.go:122: output byte count does not match:
        - go: 4
        - os: 0
    vm_bpf_test.go:126: Go BPF and OS BPF packet outputs do not match

— watchflakes

gopherbot · 2023-04-25T16:59:57Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "golang.org/x/net/bpf" && `Go BPF and OS BPF packet outputs do not match`

2023-04-19 19:08 linux-s390x-ibm net@938ff153 go@715d53c0 x/net/bpf.TestVMJumpIfGreaterOrEqual (log)

--- FAIL: TestVMJumpIfGreaterOrEqual (0.35s)
    vm_bpf_test.go:122: output byte count does not match:
        - go: 4
        - os: 0
    vm_bpf_test.go:126: Go BPF and OS BPF packet outputs do not match

— watchflakes

gopherbot · 2023-05-09T13:18:17Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "golang.org/x/net/bpf" && `Go BPF and OS BPF packet outputs do not match`

2023-05-04 16:26 linux-s390x-ibm net@daac0cec go@8d5065ce x/net/bpf.TestVMALUOpXor (log)

--- FAIL: TestVMALUOpXor (0.25s)
    vm_bpf_test.go:122: output byte count does not match:
        - go: 1
        - os: 0
    vm_bpf_test.go:126: Go BPF and OS BPF packet outputs do not match

— watchflakes

gopherbot · 2023-05-17T14:13:09Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "golang.org/x/net/bpf" && `Go BPF and OS BPF packet outputs do not match`

2023-05-16 21:31 linux-s390x-ibm net@3b31286d go@099f5a98 x/net/bpf.TestVMALUOpAdd (log)

--- FAIL: TestVMALUOpAdd (0.29s)
    vm_bpf_test.go:122: output byte count does not match:
        - go: 3
        - os: 0
    vm_bpf_test.go:126: Go BPF and OS BPF packet outputs do not match

— watchflakes

bcmills · 2023-05-17T15:05:39Z

The vast majority of these failures are on linux/s390x. @golang/s390x, could you investigate?

bcmills · 2023-05-17T15:06:18Z

(attn @danderson @mdlayher for x/net/bpf, per http://dev.golang.org/owners.)

gopherbot · 2023-05-19T04:24:50Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "golang.org/x/net/bpf" && `Go BPF and OS BPF packet outputs do not match`

2023-05-18 16:34 linux-s390x-ibm net@abee42a2 go@8f1031df x/net/bpf.TestVMALUOpAdd (log)

--- FAIL: TestVMALUOpAdd (0.69s)
    vm_bpf_test.go:122: output byte count does not match:
        - go: 3
        - os: 0
    vm_bpf_test.go:126: Go BPF and OS BPF packet outputs do not match

— watchflakes

gopherbot · 2023-05-22T02:37:30Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "golang.org/x/net/bpf" && `Go BPF and OS BPF packet outputs do not match`

2023-05-19 22:58 linux-s390x-ibm net@056145cf go@b950cc8f x/net/bpf.TestVMALUOpAdd (log)

--- FAIL: TestVMALUOpAdd (0.15s)
    vm_bpf_test.go:122: output byte count does not match:
        - go: 3
        - os: 0
    vm_bpf_test.go:126: Go BPF and OS BPF packet outputs do not match

— watchflakes

gopherbot · 2023-06-06T13:01:33Z

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "golang.org/x/net/bpf" && `Go BPF and OS BPF packet outputs do not match`

2023-06-01 14:35 linux-s390x-ibm net@10cf3880 go@38e2376f x/net/bpf.TestVMALUOpAdd (log)

--- FAIL: TestVMALUOpAdd (0.24s)
    vm_bpf_test.go:122: output byte count does not match:
        - go: 3
        - os: 0
    vm_bpf_test.go:126: Go BPF and OS BPF packet outputs do not match

— watchflakes

gopherbot · 2023-06-06T14:05:05Z

Change https://go.dev/cl/501155 mentions this issue: bpf: check for little endian CPU for OS VM comparison

When I wrote these tests, I assumed the native endianness for the machine was little endian. Explicitly check this so that the emulated BPF VM tests can run on s390x, but we avoid test flakes related to endianness. Updates golang/go#55235. Change-Id: I9be430dfe7f97503af7a620ed80dcbacb66d73cc Reviewed-on: https://go-review.googlesource.com/c/net/+/501155 Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Ian Lance Taylor <iant@google.com> Run-TryBot: Ian Lance Taylor <iant@google.com> Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com> TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Matt Layher <mdlayher@gmail.com> Auto-Submit: Ian Lance Taylor <iant@google.com>

gopherbot · 2023-06-07T16:25:53Z

Change https://go.dev/cl/501615 mentions this issue: all: update x/sys to HEAD

An update is needed to pull in CL 494856, to allow the bpf test to build on js and wasip1 after the test changes in CL 501155. Updates golang/go#55235. Updates golang/go#57237. Change-Id: Iff48bad97453932065c27b0c8b4a3706ddcf659a Reviewed-on: https://go-review.googlesource.com/c/net/+/501615 Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com> Run-TryBot: Bryan Mills <bcmills@google.com> Auto-Submit: Bryan Mills <bcmills@google.com> Reviewed-by: Matt Layher <mdlayher@gmail.com> Reviewed-by: Ian Lance Taylor <iant@google.com> TryBot-Result: Gopher Robot <gobot@golang.org>

gopherbot added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Sep 20, 2022

gopherbot added this to the Unreleased milestone Sep 20, 2022

gopherbot changed the title ~~x/net/bpf: flaky TestVMALUOpAdd~~ x/net/bpf: TestVMALUOpAdd failures Sep 20, 2022

rsc changed the title ~~x/net/bpf: TestVMALUOpAdd failures~~ x/net/bpf: failures about BPF packet outputs not matching Sep 21, 2022

bcmills mentioned this issue May 19, 2023

x/build/cmd/watchflakes: misattributed test failures #60295

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x/net/bpf: failures about BPF packet outputs not matching #55235

x/net/bpf: failures about BPF packet outputs not matching #55235

gopherbot commented Sep 20, 2022 •

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edited

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x/net/bpf: failures about BPF packet outputs not matching #55235

x/net/bpf: failures about BPF packet outputs not matching #55235

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gopherbot commented Sep 20, 2022 • edited by rsc

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gopherbot commented Sep 20, 2022 •

edited by rsc

gopherbot commented Sep 20, 2022 •

edited