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runtime: TestGdbBacktrace failures #58698

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gopherbot opened this issue Feb 24, 2023 · 4 comments
Open

runtime: TestGdbBacktrace failures #58698

gopherbot opened this issue Feb 24, 2023 · 4 comments
Labels
compiler/runtime Issues related to the Go compiler and/or runtime. NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. WaitingForInfo Issue is not actionable because of missing required information, which needs to be provided.
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Backlog

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@gopherbot
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#!watchflakes
post <- pkg == "runtime" && test == "TestGdbBacktrace"

Issue created automatically to collect these failures.

Example (log):

--- FAIL: TestGdbBacktrace (2323.65s)
    runtime-gdb_test.go:83: gdb version 10.1
    runtime-gdb_test.go:468: GDB command timed out after 38m43.017693938s: /usr/bin/gdb -nx -batch -iex add-auto-load-safe-path /workdir/go/src/runtime -ex set startup-with-shell off -ex break main.eee -ex run -ex backtrace -ex continue /workdir/tmp/TestGdbBacktrace2238907183/001/a.exe
    runtime-gdb_test.go:473: gdb output:
        Loading Go Runtime support.
        Breakpoint 1 at 0x80a2830: file /workdir/tmp/TestGdbBacktrace2238907183/001/main.go, line 17.
        [New LWP 532860]
        [New LWP 532862]
        [New LWP 532864]
        [New LWP 532865]

        Thread 1 "a.exe" hit Breakpoint 1, main.eee (~r0=<optimized out>) at /workdir/tmp/TestGdbBacktrace2238907183/001/main.go:17
        17	func eee() bool { return true }
        #0  main.eee (~r0=<optimized out>) at /workdir/tmp/TestGdbBacktrace2238907183/001/main.go:17
        #1  0x080a280f in main.ddd (~r0=<optimized out>) at /workdir/tmp/TestGdbBacktrace2238907183/001/main.go:14
        #2  0x080a27da in main.ccc (~r0=<optimized out>) at /workdir/tmp/TestGdbBacktrace2238907183/001/main.go:11
        #3  0x080a27aa in main.bbb (~r0=<optimized out>) at /workdir/tmp/TestGdbBacktrace2238907183/001/main.go:8
        #4  0x080a277a in main.aaa (~r0=<optimized out>) at /workdir/tmp/TestGdbBacktrace2238907183/001/main.go:5
        #5  0x080a286a in main.main () at /workdir/tmp/TestGdbBacktrace2238907183/001/main.go:22
        waiting for new child: No child processes.
    runtime-gdb_test.go:488: gdb exited with error: signal: killed

— watchflakes
@gopherbot gopherbot added NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. compiler/runtime Issues related to the Go compiler and/or runtime. labels Feb 24, 2023
@gopherbot
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Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "runtime" && test == "TestGdbBacktrace"
2023-02-13 19:42 linux-386-longtest go@0b922bfa runtime.TestGdbBacktrace (log) 
--- FAIL: TestGdbBacktrace (2323.65s)
    runtime-gdb_test.go:83: gdb version 10.1
    runtime-gdb_test.go:468: GDB command timed out after 38m43.017693938s: /usr/bin/gdb -nx -batch -iex add-auto-load-safe-path /workdir/go/src/runtime -ex set startup-with-shell off -ex break main.eee -ex run -ex backtrace -ex continue /workdir/tmp/TestGdbBacktrace2238907183/001/a.exe
    runtime-gdb_test.go:473: gdb output:
        Loading Go Runtime support.
        Breakpoint 1 at 0x80a2830: file /workdir/tmp/TestGdbBacktrace2238907183/001/main.go, line 17.
        [New LWP 532860]
        [New LWP 532862]
        [New LWP 532864]
        [New LWP 532865]

        Thread 1 "a.exe" hit Breakpoint 1, main.eee (~r0=<optimized out>) at /workdir/tmp/TestGdbBacktrace2238907183/001/main.go:17
        17	func eee() bool { return true }
        #0  main.eee (~r0=<optimized out>) at /workdir/tmp/TestGdbBacktrace2238907183/001/main.go:17
        #1  0x080a280f in main.ddd (~r0=<optimized out>) at /workdir/tmp/TestGdbBacktrace2238907183/001/main.go:14
        #2  0x080a27da in main.ccc (~r0=<optimized out>) at /workdir/tmp/TestGdbBacktrace2238907183/001/main.go:11
        #3  0x080a27aa in main.bbb (~r0=<optimized out>) at /workdir/tmp/TestGdbBacktrace2238907183/001/main.go:8
        #4  0x080a277a in main.aaa (~r0=<optimized out>) at /workdir/tmp/TestGdbBacktrace2238907183/001/main.go:5
        #5  0x080a286a in main.main () at /workdir/tmp/TestGdbBacktrace2238907183/001/main.go:22
        waiting for new child: No child processes.
    runtime-gdb_test.go:488: gdb exited with error: signal: killed

— watchflakes

@mknyszek mknyszek added the WaitingForInfo Issue is not actionable because of missing required information, which needs to be provided. label Mar 1, 2023
@mknyszek mknyszek added this to the Backlog milestone Mar 1, 2023
@mknyszek
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mknyszek commented Mar 1, 2023

In triage, best guess is that this is just a "GDB tests are sometimes flaky" but we'll wait on more failures.

Than and Cherry note that the GDB version isn't very old.

@gopherbot
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Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "runtime" && test == "TestGdbBacktrace"
2023-03-16 19:44 linux-arm64 go@19281498 runtime.TestGdbBacktrace (log) 
--- FAIL: TestGdbBacktrace (0.33s)
    runtime-gdb_test.go:81: gdb version 10.1
    runtime-gdb_test.go:471: gdb output:
        Loading Go Runtime support.
        Breakpoint 1 at 0x64e84: file /tmp/workdir/tmp/TestGdbBacktrace2506571992/001/main.go, line 17.
        [New LWP 180945]
        [New LWP 180946]
        [New LWP 180947]

        Thread 1 "a.exe" hit Breakpoint 1, 0x0000000000064e84 in main.eee (~r0=<optimized out>) at /tmp/workdir/tmp/TestGdbBacktrace2506571992/001/main.go:17
        17	func eee() bool { return true }
        #0  0x0000000000064e84 in main.eee (~r0=<optimized out>) at /tmp/workdir/tmp/TestGdbBacktrace2506571992/001/main.go:17
        #1  0x0000000000064e68 in main.ddd (~r0=<optimized out>) at /tmp/workdir/tmp/TestGdbBacktrace2506571992/001/main.go:14
        #2  0x0000000000064e1c in main.ccc (~r0=<optimized out>) at /tmp/workdir/tmp/TestGdbBacktrace2506571992/001/main.go:11
        #3  0x0000000000064ddc in main.bbb (~r0=<optimized out>) at /tmp/workdir/tmp/TestGdbBacktrace2506571992/001/main.go:8
        #4  0x0000000000064d9c in main.aaa (~r0=<optimized out>) at /tmp/workdir/tmp/TestGdbBacktrace2506571992/001/main.go:5
        #5  0x0000000000064eac in main.main () at /tmp/workdir/tmp/TestGdbBacktrace2506571992/001/main.go:22
        Unable to fetch general registers.: No such process.
        [LWP 180947 exited]
        [LWP 180945 exited]
        [LWP 180940 exited]
    runtime-gdb_test.go:486: gdb exited with error: exit status 1

— watchflakes

@gopherbot
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Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "runtime" && test == "TestGdbBacktrace"
2023-03-16 19:51 linux-arm64-boringcrypto go@e91876f4 runtime.TestGdbBacktrace (log) 
--- FAIL: TestGdbBacktrace (0.28s)
    runtime-gdb_test.go:81: gdb version 10.1
    runtime-gdb_test.go:471: gdb output:
        Loading Go Runtime support.
        Breakpoint 1 at 0x64e84: file /tmp/workdir/tmp/TestGdbBacktrace4270477819/001/main.go, line 17.
        [New LWP 188825]
        [New LWP 188826]
        [New LWP 188827]

        Thread 1 "a.exe" hit Breakpoint 1, 0x0000000000064e84 in main.eee (~r0=<optimized out>) at /tmp/workdir/tmp/TestGdbBacktrace4270477819/001/main.go:17
        17	func eee() bool { return true }
        #0  0x0000000000064e84 in main.eee (~r0=<optimized out>) at /tmp/workdir/tmp/TestGdbBacktrace4270477819/001/main.go:17
        #1  0x0000000000064e68 in main.ddd (~r0=<optimized out>) at /tmp/workdir/tmp/TestGdbBacktrace4270477819/001/main.go:14
        #2  0x0000000000064e1c in main.ccc (~r0=<optimized out>) at /tmp/workdir/tmp/TestGdbBacktrace4270477819/001/main.go:11
        #3  0x0000000000064ddc in main.bbb (~r0=<optimized out>) at /tmp/workdir/tmp/TestGdbBacktrace4270477819/001/main.go:8
        #4  0x0000000000064d9c in main.aaa (~r0=<optimized out>) at /tmp/workdir/tmp/TestGdbBacktrace4270477819/001/main.go:5
        #5  0x0000000000064eac in main.main () at /tmp/workdir/tmp/TestGdbBacktrace4270477819/001/main.go:22
        Unable to fetch general registers.: No such process.
        [LWP 188827 exited]
        [LWP 188825 exited]
        [LWP 188822 exited]
    runtime-gdb_test.go:486: gdb exited with error: exit status 1

— watchflakes

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Labels
compiler/runtime Issues related to the Go compiler and/or runtime. NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. WaitingForInfo Issue is not actionable because of missing required information, which needs to be provided.
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Go Compiler / Runtime
Status: Todo
Test Flakes
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@mknyszek @gopherbot