panic: expected socket to exist at ' N' in abstract socket namespace goroutine 570 [running]: panic({0xfc8d60?, 0xc000392ad0?}) GOROOT/src/runtime/panic.go:1017 +0x3ac fp=0xc0005a3420 sp=0xc0005a3370 pc=0x43a72c gvisor.dev/gvisor/pkg/sentry/inet.(*AbstractSocketNamespace).Remove(0xc0000ce8f8, {0xc000e0c771, 0x6b}, {0x1413c40?, 0xc0001e8840}) pkg/sentry/inet/abstract_socket_namespace.go:141 +0x22a fp=0xc0005a3500 sp=0xc0005a3420 pc=0x8d372a gvisor.dev/gvisor/pkg/sentry/socket/unix.(*Socket).Release.(*Socket).DecRef.func1() pkg/sentry/socket/unix/unix.go:120 +0x9b fp=0xc0005a3550 sp=0xc0005a3500 pc=0xa4d4bb gvisor.dev/gvisor/pkg/sentry/socket/unix.(*socketRefs).DecRef(0xa544c5?, 0xc0005a35c8) bazel-out/k8-fastbuild/bin/pkg/sentry/socket/unix/socket_refs.go:132 +0x42 fp=0xc0005a35b8 sp=0xc0005a3550 pc=0xa4cc42 gvisor.dev/gvisor/pkg/sentry/socket/unix.(*Socket).DecRef(...) pkg/sentry/socket/unix/unix.go:116 gvisor.dev/gvisor/pkg/sentry/socket/unix.(*Socket).Release(0xc000948d78?, {0x1421f98?, 0xc000972a80?}) pkg/sentry/socket/unix/unix.go:132 +0x65 fp=0xc0005a35f8 sp=0xc0005a35b8 pc=0xa4d3e5 gvisor.dev/gvisor/pkg/sentry/kernel.(*FDTable).drop.(*FileDescription).DecRef.func1() pkg/sentry/vfs/file_description.go:197 +0x267 fp=0xc0005a36e8 sp=0xc0005a35f8 pc=0x8fca07 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescriptionRefs).DecRef(0xc0005a37e0?, 0xc0005a37c0) bazel-out/k8-fastbuild/bin/pkg/sentry/vfs/file_description_refs.go:132 +0x42 fp=0xc0005a3750 sp=0xc0005a36e8 pc=0x74aae2 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).DecRef(...) pkg/sentry/vfs/file_description.go:161 gvisor.dev/gvisor/pkg/sentry/kernel.(*FDTable).drop(0xc0008e9e80?, {0x1421f98, 0xc000972a80}, 0xc0001e8840) pkg/sentry/kernel/fd_table.go:137 +0x19c fp=0xc0005a37f0 sp=0xc0005a3750 pc=0x8fc6fc gvisor.dev/gvisor/pkg/sentry/kernel.(*FDTable).NewFDAt(0x0?, {0x1421f98, 0xc000972a80}, 0x0?, 0x0?, {0x0?}) pkg/sentry/kernel/fd_table.go:321 +0x46 fp=0xc0005a3838 sp=0xc0005a37f0 pc=0x8fe166 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).NewFDAt(...) pkg/sentry/kernel/task.go:778 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.dup3(0xc000972a80, 0x1000000?, 0x3, 0x0?) pkg/sentry/syscalls/linux/sys_file.go:572 +0xe5 fp=0xc0005a38c8 sp=0xc0005a3838 pc=0xa719a5 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Dup2(0xc000972a80?, 0x0?, {{0x4}, {0x3}, {0x56136ed549b9}, {0x7fe8c3ed36c0}, {0x7fe8c3ed36c0}, {0x7fe8c3ed36c0}}) pkg/sentry/syscalls/linux/sys_file.go:545 +0xc8 fp=0xc0005a3918 sp=0xc0005a38c8 pc=0xa714e8 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000972a80, 0x21, {{0x4}, {0x3}, {0x56136ed549b9}, {0x7fe8c3ed36c0}, {0x7fe8c3ed36c0}, {0x7fe8c3ed36c0}}) pkg/sentry/kernel/task_syscall.go:142 +0x673 fp=0xc0005a3c58 sp=0xc0005a3918 pc=0x942f73 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000972a80, 0x0?, {{0x4}, {0x3}, {0x56136ed549b9}, {0x7fe8c3ed36c0}, {0x7fe8c3ed36c0}, {0x7fe8c3ed36c0}}) pkg/sentry/kernel/task_syscall.go:322 +0x45 fp=0xc0005a3cb8 sp=0xc0005a3c58 pc=0x9440e5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00045a240?, 0xc0005a3e00?, {{0x4}, {0x3}, {0x56136ed549b9}, {0x7fe8c3ed36c0}, {0x7fe8c3ed36c0}, {0x7fe8c3ed36c0}}) pkg/sentry/kernel/task_syscall.go:282 +0x59 fp=0xc0005a3d18 sp=0xc0005a3cb8 pc=0x943df9 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0000224d0?) pkg/sentry/kernel/task_syscall.go:257 +0x2d5 fp=0xc0005a3e10 sp=0xc0005a3d18 pc=0x943b95 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0000f0c80?, 0xc000972a80) pkg/sentry/kernel/task_run.go:269 +0xfb7 fp=0xc0005a3f48 sp=0xc0005a3e10 pc=0x937e77 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000972a80, 0x57) pkg/sentry/kernel/task_run.go:98 +0x1ef fp=0xc0005a3fc0 sp=0xc0005a3f48 pc=0x93680f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1() pkg/sentry/kernel/task_start.go:391 +0x25 fp=0xc0005a3fe0 sp=0xc0005a3fc0 pc=0x941885 runtime.goexit() src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0005a3fe8 sp=0xc0005a3fe0 pc=0x471241 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 409 pkg/sentry/kernel/task_start.go:391 +0xe5