panic: Unknown syscall 85 error: link should be resolved via Readlink()

DIAGNOSIS:
retrieving stacks: getting sandbox "ci-gvisor-ptrace-proxy-sandbox-race-3" stacks: urpc method "debug.Stacks" failed: connection reset by peer


Error collecting stacks: failed to run ["/syzkaller/managers/ptrace-proxy-sandbox-race/current/image" "-root" "/syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root" "-watchdog-action=panic" "-network=none" "-debug" "-platform=ptrace" "-file-access=shared" "-network=sandbox" "debug" "-stacks" "ci-gvisor-ptrace-proxy-sandbox-race-3"]: exit status 128
retrieving stacks: getting sandbox "ci-gvisor-ptrace-proxy-sandbox-race-3" stacks: urpc method "debug.Stacks" failed: connection reset by peer
goroutine 319321 [running]:
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).ExtractErrno(0xc001054a80, 0x13b9340, 0xc000148650, 0x55, 0x0)
	pkg/sentry/kernel/task_syscall.go:446 +0x536
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc001054a80, 0x55, 0x200011c0, 0x24, 0x0, 0x0, 0x0, 0x0, 0x55, 0xc000cfa5a0)
	pkg/sentry/kernel/task_syscall.go:293 +0x158
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc001054a80, 0x55, 0x200011c0, 0x24, 0x0, 0x0, 0x0, 0x0, 0xc00118fd38, 0xda80f5)
	pkg/sentry/kernel/task_syscall.go:244 +0x10a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc001054a80, 0x2, 0xc00016cd40)
	pkg/sentry/kernel/task_syscall.go:219 +0x1b7
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc001054a80, 0x13b9c20, 0x0)
	pkg/sentry/kernel/task_run.go:219 +0x1524
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc001054a80, 0x25c2)
	pkg/sentry/kernel/task_run.go:91 +0x2e6
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:287 +0x19e