panic: WARNING: circular locking detected: stack.packetsPendingLinkResolutionMutex -> stack.routeRWMutex: goroutine 31465 [running]: gvisor.dev/gvisor/pkg/sync/locking.(*ancestorsAtomicPtrMap).RangeRepeatable(0xc00017c2f0, 0xc005a3db40) bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go:441 +0x1dc gvisor.dev/gvisor/pkg/sync/locking.checkLock(0xc00017c360, 0xc00017c2d0, {0x0, 0x0, 0x0}) pkg/sync/locking/lockdep.go:98 +0x373 gvisor.dev/gvisor/pkg/sync/locking.AddGLock(0xc00017c360, 0xffffffffffffffff) pkg/sync/locking/lockdep.go:126 +0x28c gvisor.dev/gvisor/pkg/tcpip/stack.(*routeRWMutex).RLock(0xc000c005f0) bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/tcpip/stack/route_mutex.go:59 +0x45 gvisor.dev/gvisor/pkg/tcpip/stack.(*Route).resolvedFields(0xc000c005a0, 0x0) pkg/tcpip/stack/route.go:379 +0x91 gvisor.dev/gvisor/pkg/tcpip/stack.(*packetsPendingLinkResolution).enqueue(0xc000f54798, 0x10?, {0xc000420670?}) pkg/tcpip/stack/pending_packets.go:128 +0xac gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).WritePacket(0xc000f54600, 0x5b4?, {0xc002a12000?}) pkg/tcpip/stack/nic.go:368 +0x145 gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).writePacket(0xc000a4c000, 0xc000c005a0, {0x10?}, 0x52c0c9?, 0x0) pkg/tcpip/network/ipv6/ipv6.go:863 +0x409 gvisor.dev/gvisor/pkg/tcpip/network/ipv6.(*endpoint).WritePacket(0xc000a4c000, 0xc000c005a0, {0x86dd?, 0x0?, 0x0?}, {0x0?}) pkg/tcpip/network/ipv6/ipv6.go:814 +0x2d8 gvisor.dev/gvisor/pkg/tcpip/stack.(*Route).WritePacket(0xc000c005a0, {0x4dda7c8?, 0xc0?, 0x0?}, {0xc003bd0438?}) pkg/tcpip/stack/route.go:498 +0xf9 gvisor.dev/gvisor/pkg/tcpip/transport/internal/network.(*WriteContext).WritePacket(0xc005a3ea68, {0x36?}, 0x0) pkg/tcpip/transport/internal/network/endpoint.go:320 +0x1ea gvisor.dev/gvisor/pkg/tcpip/transport/raw.(*endpoint).write(0xc003bd0300, {0x790388?, 0xc004fb7900}, {0xc003be7080, 0x0, 0x0, 0x0, {0x0, 0x0, 0x0, ...}}) pkg/tcpip/transport/raw/endpoint.go:385 +0x8df gvisor.dev/gvisor/pkg/tcpip/transport/raw.(*endpoint).Write(0xc003bd0300, {0x790388, 0xc004fb7900}, {0xc003be7080, 0x0, 0x0, 0x0, {0x0, 0x0, 0x0, ...}}) pkg/tcpip/transport/raw/endpoint.go:320 +0x126 gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*Socket).SendMsg(0xc003bba2a0, 0xc003c8b500, {{0x797d98, 0xc003f3a000}, {0x0, 0x1, 0x20000040, 0x4}, {0x0, 0x1}}, ...) pkg/sentry/socket/netstack/netstack.go:2936 +0x71a gvisor.dev/gvisor/pkg/sentry/syscalls/linux.sendSingleMsg(0xc003c8b500, {0x7ac040, 0xc003bba2a0}, 0xc000565320?, 0x10000c001265520?, 0x0) pkg/sentry/syscalls/linux/sys_socket.go:1111 +0x66b gvisor.dev/gvisor/pkg/sentry/syscalls/linux.SendMMsg(0xc003c8b500, {{0x3}, {0x200005c0}, {0x1}, {0x0}, {0x0}, {0x0}}) pkg/sentry/syscalls/linux/sys_socket.go:1035 +0x4df gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc003c8b500, 0x133, {{0x3}, {0x200005c0}, {0x1}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:142 +0x9b9 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc003c8b500, 0x0?, {{0x3}, {0x200005c0}, {0x1}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:322 +0x7d gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0016681a0?, 0xc0021c2870?, {{0x3}, {0x200005c0}, {0x1}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:282 +0x8f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc003c8b500) pkg/sentry/kernel/task_syscall.go:257 +0x4c5 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc003c8b500?, 0xc003c8b500) pkg/sentry/kernel/task_run.go:253 +0x1965 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc003c8b500, 0x4f9) pkg/sentry/kernel/task_run.go:94 +0x3a2 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:377 +0x1ad