panic: Unknown syscall 85 error: link should be resolved via Readlink() goroutine 1718308 [running]: gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).ExtractErrno(0xc00131f500, 0xe92420, 0xc00011c7e0, 0x55, 0x0) pkg/sentry/kernel/task_syscall.go:446 +0x364 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00131f500, 0x55, 0x200000c0, 0x9, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0) pkg/sentry/kernel/task_syscall.go:293 +0x16d gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00131f500, 0x55, 0x200000c0, 0x9, 0x0, 0x0, 0x0, 0x0, 0xc00022cb40, 0xebcb00) pkg/sentry/kernel/task_syscall.go:244 +0x96 DIAGNOSIS: retrieving stacks: getting sandbox "ci-gvisor-main-0" stacks: urpc method "debug.Stacks" failed: connection reset by peer