panic: Unknown syscall 4 error: payload too small. Minimum data lenth required: 128, but got data length 0 goroutine 604924 [running]: panic(0x1102aa0, 0xc01d061df0) GOROOT/src/runtime/panic.go:1065 +0x565 fp=0xc01cb83c08 sp=0xc01cb83b40 pc=0x437c65 gvisor.dev/gvisor/pkg/sentry/kernel.ExtractErrno(0x1491820, 0xc01d061de0, 0x4, 0x20002780) pkg/sentry/kernel/task_syscall.go:401 +0x329 fp=0xc01cb83c70 sp=0xc01cb83c08 pc=0x9f45a9 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc01da13500, 0x4, 0x20002740, 0x20002780, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0) pkg/sentry/kernel/task_syscall.go:248 +0x165 fp=0xc01cb83cf8 sp=0xc01cb83c70 pc=0x9f2c85 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc01da13500, 0x4, 0x20002740, 0x20002780, 0x0, 0x0, 0x0, 0x0, 0x14d19e8, 0xc01d496b40) pkg/sentry/kernel/task_syscall.go:198 +0x98 fp=0xc01cb83d58 sp=0xc01cb83cf8 pc=0x9f2778 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc01da13500, 0x2, 0xc01da13500) pkg/sentry/kernel/task_syscall.go:173 +0x15c fp=0xc01cb83e28 sp=0xc01cb83d58 pc=0x9f211c gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc01da13500, 0x14929c0, 0x0) pkg/sentry/kernel/task_run.go:254 +0xc27 fp=0xc01cb83f68 sp=0xc01cb83e28 pc=0x9e6ea7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc01da13500, 0x433a) pkg/sentry/kernel/task_run.go:95 +0x182 fp=0xc01cb83fd0 sp=0xc01cb83f68 pc=0x9e5de2 runtime.goexit() src/runtime/asm_amd64.s:1371 +0x1 fp=0xc01cb83fd8 sp=0xc01cb83fd0 pc=0x472861 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:342 +0xfe