panic: runtime error: integer divide by zero goroutine 7443 gp=0xc0004fee00 m=2 mp=0xc00013c708 [running]: panic({0x11c8080?, 0x20e4b40?}) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc001db1680 sp=0xc001db15d0 pc=0x4740c8 runtime.panicdivide() bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:241 +0x3e fp=0xc001db16a0 sp=0xc001db1680 pc=0x43945e gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*ringBuffer).init(0xaf6a2f?, {0x15cd040?, 0xc000937208?}, 0xaf6a80?) pkg/sentry/socket/netstack/packetmmap/ring_buffer.go:62 +0x45f fp=0xc001db1768 sp=0xc001db16a0 pc=0xae3aff gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*Endpoint).Init(0xc000268200?, {0x15cd040?, 0xc000937208?}, {0xc00048e9a0, 0x1, 0x0, 0xc0021b7808, 0xc0002682f0, 0xc000ffab40, 0x0, ...}) pkg/sentry/socket/netstack/packetmmap/endpoint.go:128 +0x265 fp=0xc001db17b8 sp=0xc001db1768 pc=0xae14a5 gvisor.dev/gvisor/pkg/sentry/socket/netstack.setSockOptPacket(0xc000937208, {0xc001db18e0?, 0x40e7ff?}, {0x7fb913991a30, 0xc000268200}, 0xc001db1901?, {0xc000937d1c?, 0xc001db1908?, 0xc0027d8008?}) pkg/sentry/socket/netstack/netstack.go:2745 +0x315 fp=0xc001db1898 sp=0xc001db17b8 pc=0xba52f5 gvisor.dev/gvisor/pkg/sentry/socket/netstack.SetSockOpt(0x8dcbc0?, {0x15df0d8?, 0xc000a46000?}, {0x7fb913991a30?, 0xc000268200?}, 0xc000937208?, 0xc001db1988?, {0xc000937d1c, 0x1c, 0x90}) pkg/sentry/socket/netstack/netstack.go:1873 +0x148 fp=0xc001db18f0 sp=0xc001db1898 pc=0xba2468 gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*sock).SetSockOpt(0xc000a46000, 0xc000937208?, 0x107?, 0x5?, {0xc000937d1c, 0x1c?, 0x90?}) pkg/sentry/socket/netstack/netstack.go:634 +0x225 fp=0xc001db1998 sp=0xc001db18f0 pc=0xb9c8e5 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.SetSockOpt(0xc000937208, 0x0?, {{0x3}, {0x107}, {0x5}, {0x200000000100}, {0x1c}, {0x0}}) pkg/sentry/syscalls/linux/sys_socket.go:551 +0x246 fp=0xc001db1a78 sp=0xc001db1998 pc=0xc2a546 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000937208, 0x36, {{0x3}, {0x107}, {0x5}, {0x200000000100}, {0x1c}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0x657 fp=0xc001db1ca8 sp=0xc001db1a78 pc=0xa777f7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000937208, 0x36, {{0x3}, {0x107}, {0x5}, {0x200000000100}, {0x1c}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x45 fp=0xc001db1d00 sp=0xc001db1ca8 pc=0xa78965 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000937208, 0x36, {{0x3}, {0x107}, {0x5}, {0x200000000100}, {0x1c}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0x65 fp=0xc001db1d50 sp=0xc001db1d00 pc=0xa78665 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000540370?) pkg/sentry/kernel/task_syscall.go:258 +0x2a5 fp=0xc001db1e28 sp=0xc001db1d50 pc=0xa783e5 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000861a70?, 0xc000937208) pkg/sentry/kernel/task_run.go:269 +0xf17 fp=0xc001db1f30 sp=0xc001db1e28 pc=0xa6dbd7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000937208, 0x6e6) pkg/sentry/kernel/task_run.go:97 +0x214 fp=0xc001db1fc0 sp=0xc001db1f30 pc=0xa6c634 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1() pkg/sentry/kernel/task_start.go:412 +0x25 fp=0xc001db1fe0 sp=0xc001db1fc0 pc=0xa76205 runtime.goexit({}) src/runtime/asm_amd64.s:1700 +0x1 fp=0xc001db1fe8 sp=0xc001db1fe0 pc=0x47d1a1 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 7356 pkg/sentry/kernel/task_start.go:412 +0xc5