panic: Unknown syscall 4 error: payload too small. Minimum data lenth required: 104, but got data length 0 goroutine 251059 [running]: panic(0x1219b00, 0xc05b16d630) GOROOT/src/runtime/panic.go:1065 +0x565 fp=0xc002147c10 sp=0xc002147b48 pc=0x437c65 gvisor.dev/gvisor/pkg/sentry/kernel.ExtractErrno(0x15d76c0, 0xc05b16d620, 0x4, 0x20006980) pkg/sentry/kernel/task_syscall.go:509 +0x3ee fp=0xc002147c78 sp=0xc002147c10 pc=0xa8762e gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc006d5e000, 0x4, 0x20006940, 0x20006980, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0) pkg/sentry/kernel/task_syscall.go:307 +0x1d9 fp=0xc002147d00 sp=0xc002147c78 pc=0xa859b9 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc006d5e000, 0x4, 0x20006940, 0x20006980, 0x0, 0x0, 0x0, 0x0, 0xc05c701110, 0x1617468) pkg/sentry/kernel/task_syscall.go:237 +0xb4 fp=0xc002147d60 sp=0xc002147d00 pc=0xa85334 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc006d5e000, 0x2, 0xc006d5e000) pkg/sentry/kernel/task_syscall.go:204 +0x198 fp=0xc002147e30 sp=0xc002147d60 pc=0xa84c18 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc006d5e000, 0x15d8860, 0x0) pkg/sentry/kernel/task_run.go:294 +0xd9a fp=0xc002147f68 sp=0xc002147e30 pc=0xa77b3a gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc006d5e000, 0x31ec) pkg/sentry/kernel/task_run.go:98 +0x1b9 fp=0xc002147fd0 sp=0xc002147f68 pc=0xa768f9 runtime.goexit() src/runtime/asm_amd64.s:1371 +0x1 fp=0xc002147fd8 sp=0xc002147fd0 pc=0x472861 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:398 +0x116