panic: Unknown syscall 4 error: payload too small. Minimum data lenth required: 104, but got data length 0 goroutine 119955 [running]: panic(0x121ab40, 0xc011caaa60) GOROOT/src/runtime/panic.go:1065 +0x565 fp=0xc0020d3c10 sp=0xc0020d3b48 pc=0x437c65 gvisor.dev/gvisor/pkg/sentry/kernel.ExtractErrno(0x15d8c60, 0xc011caaa50, 0x4, 0x200049c0) pkg/sentry/kernel/task_syscall.go:509 +0x3ee fp=0xc0020d3c78 sp=0xc0020d3c10 pc=0xa876ce gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc014316a80, 0x4, 0x20000780, 0x200049c0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0) pkg/sentry/kernel/task_syscall.go:307 +0x1d9 fp=0xc0020d3d00 sp=0xc0020d3c78 pc=0xa85a59 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc014316a80, 0x4, 0x20000780, 0x200049c0, 0x0, 0x0, 0x0, 0x0, 0xc013d7ac30, 0x1618a28) pkg/sentry/kernel/task_syscall.go:237 +0xb4 fp=0xc0020d3d60 sp=0xc0020d3d00 pc=0xa853d4 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc014316a80, 0x2, 0xc014316a80) pkg/sentry/kernel/task_syscall.go:204 +0x198 fp=0xc0020d3e30 sp=0xc0020d3d60 pc=0xa84cb8 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc014316a80, 0x15d9e00, 0x0) pkg/sentry/kernel/task_run.go:294 +0xd9a fp=0xc0020d3f68 sp=0xc0020d3e30 pc=0xa77b5a gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc014316a80, 0x157f) pkg/sentry/kernel/task_run.go:98 +0x1b9 fp=0xc0020d3fd0 sp=0xc0020d3f68 pc=0xa76919 runtime.goexit() src/runtime/asm_amd64.s:1371 +0x1 fp=0xc0020d3fd8 sp=0xc0020d3fd0 pc=0x472861 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:396 +0x116