Golang：致命錯誤：運行時執行期間出現意外信號

Question

我在執行二進制文件時隨機收到以下錯誤（有時它有效）：

fatal error: unexpected signal during runtime execution
[signal SIGSEGV: segmentation violation code=0x1 addr=0x47 pc=0x7f07a019b448]

這是整個堆棧跟蹤。

我運行二進制文件的操作系統版本：

NAME="Ubuntu"
VERSION="18.04.3 LTS (Bionic Beaver)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 18.04.3 LTS"
VERSION_ID="18.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=bionic
UBUNTU_CODENAME=bionic

去版本：

go version
go version go1.16.9 linux/amd64

巴澤爾選項：

go_binary(
    name = "app-operator",
    embed = [":app-operator_lib"],
    gc_linkopts = [
        "-linkmode",
        "external",
        "-extldflags",
        "-static",
    ],
    static = "on",
    visibility = ["//visibility:public"],
)

我認為它發生在這個 goroutine 中：

goroutine 408 [select]:
net/http.(*Transport).getConn(0x22f49e0, 0xc00080b440, {{}, 0x0, {0x16482cc, 0x4}, {0xc0006d9590, 0x30}, 0x0})
    GOROOT/src/net/http/transport.go:1372 +0x5d2
net/http.(*Transport).roundTrip(0x22f49e0, 0xc0005b0400)
    GOROOT/src/net/http/transport.go:581 +0x774
net/http.(*Transport).RoundTrip(0x30, 0x1817c80)
    GOROOT/src/net/http/roundtrip.go:18 +0x19
net/http.send(0xc0005b0400, {0x1817c80, 0x22f49e0}, {0x15f8740, 0x201, 0x0})
    GOROOT/src/net/http/client.go:252 +0x5d8
net/http.(*Client).send(0x2382ea0, 0xc0005b0400, {0x380, 0x0, 0x0})
    GOROOT/src/net/http/client.go:176 +0x9b
net/http.(*Client).do(0x2382ea0, 0xc0005b0400)
    GOROOT/src/net/http/client.go:725 +0x908
net/http.(*Client).Do(...)
    GOROOT/src/net/http/client.go:593
somecompany.com/operators/app-operator/http/client.(*APIClient).callAPI(0xc00078e030, 0xc0005b0400)
    operators/app-operator/http/client/client.go:151 +0x12e
somecompany.com/operators/app-operator/http/client.(*BackuprestoreApiService).Poll(0xc0004de148, 0xc00016b8a8)
    operators/app-operator/http/client/api_backuprestore.go:216 +0x5bd
somecompany.com/operators/app-operator/controllers.(*BackupReconciler).Poll(0xc0004de120, {0xc00076a4b0, {0xc00021c268, 0xc00016ba38}, 0xc00076a4c0})
    operators/app-operator/controllers/backup_controller.go:165 +0x16d
somecompany.com/operators/app-operator/controllers.(*BackupReconciler).Poll(0xc0004de120, {0xc00076a4b0, {0xc00021c268, 0x4f416a}, 0xc00076a4c0})
    operators/app-operator/controllers/backup_controller.go:186 +0x396
somecompany.com/operators/app-operator/controllers.(*BackupReconciler).Poll(0xc0004de120, {0xc00076a4b0, {0xc00021c268, 0x4f4226}, 0xc00076a4c0})
    operators/app-operator/controllers/backup_controller.go:186 +0x396
somecompany.com/operators/app-operator/controllers.(*BackupReconciler).Backup(0xc0004de120, 0xc0006ab4a0)
    operators/app-operator/controllers/backup_controller.go:147 +0x396
somecompany.com/operators/app-operator/controllers.(*BackupReconciler).createBackupHandler(0xc00016bd78, 0x183e758)
    operators/app-operator/controllers/backup_controller.go:93 +0x1d
somecompany.com/operators/app-operator/controllers.(*BackupReconciler).Reconcile(0xc0004de120, {0x183e758, 0xc000772d50}, {{{0xc0000596b8, 0x155d9a0}, {0xc0000596b0, 0xc000338100}}})
    operators/app-operator/controllers/backup_controller.go:87 +0x1c5
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler(0xc0000da320, {0x183e6b0, 0xc0000b4000}, {0x14fda20, 0xc0009a4000})
    external/io_k8s_sigs_controller_runtime/pkg/internal/controller/controller.go:298 +0x303
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem(0xc0000da320, {0x183e6b0, 0xc0000b4000})
    external/io_k8s_sigs_controller_runtime/pkg/internal/controller/controller.go:253 +0x205
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2.2()
    external/io_k8s_sigs_controller_runtime/pkg/internal/controller/controller.go:214 +0x85
created by sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2
    external/io_k8s_sigs_controller_runtime/pkg/internal/controller/controller.go:210 +0x354

Answer 1

您應該能夠從構建中刪除gc_linkopts選項。 靜態鏈接glibc並不真正受支持，並且可能會導致問題。

如果您有其他需要靜態鏈接的 cgo 庫，則需要專門為這些庫提供鏈接器標志。

如果 cgo 的唯一用途是在 linux 上進行名稱解析，那么當需要靜態二進制文件而不需要可移植的 C 實現時，您幾乎總是可以在沒有 cgo 的情況下構建並依賴本機 Go 實現。