panic: runtime error: integer divide by zero goroutine 337783 gp=0xc0023edc00 m=10 mp=0xc00036c708 [running]: panic({0x11c8080?, 0x20e4b40?}) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc000711680 sp=0xc0007115d0 pc=0x4740c8 runtime.panicdivide() bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:241 +0x3e fp=0xc0007116a0 sp=0xc000711680 pc=0x43945e gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*ringBuffer).init(0xaf6a2f?, {0x15cd040?, 0xc0007d5908?}, 0xaf6a80?) pkg/sentry/socket/netstack/packetmmap/ring_buffer.go:62 +0x45f fp=0xc000711768 sp=0xc0007116a0 pc=0xae3aff gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*Endpoint).Init(0xc001e08000?, {0x15cd040?, 0xc0007d5908?}, {0xc003bcc010, 0x1, 0x0, 0xc0046da008, 0xc001e080f0, 0xc003198090, 0x0, ...}) pkg/sentry/socket/netstack/packetmmap/endpoint.go:128 +0x265 fp=0xc0007117b8 sp=0xc000711768 pc=0xae14a5 gvisor.dev/gvisor/pkg/sentry/socket/netstack.setSockOptPacket(0xc0007d5908, {0xc0007118e0?, 0x40e7ff?}, {0x7f98e00553c0, 0xc001e08000}, 0xc000711901?, {0xc0007d641c?, 0xc000711908?, 0xc003fb9008?}) pkg/sentry/socket/netstack/netstack.go:2745 +0x315 fp=0xc000711898 sp=0xc0007117b8 pc=0xba52f5 gvisor.dev/gvisor/pkg/sentry/socket/netstack.SetSockOpt(0x8dcbc0?, {0x15df0d8?, 0xc004ca4640?}, {0x7f98e00553c0?, 0xc001e08000?}, 0xc0007d5908?, 0xc000711988?, {0xc0007d641c, 0x1c, 0x90}) pkg/sentry/socket/netstack/netstack.go:1873 +0x148 fp=0xc0007118f0 sp=0xc000711898 pc=0xba2468 gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*sock).SetSockOpt(0xc004ca4640, 0xc0007d5908?, 0x107?, 0x5?, {0xc0007d641c, 0x1c?, 0x90?}) pkg/sentry/socket/netstack/netstack.go:634 +0x225 fp=0xc000711998 sp=0xc0007118f0 pc=0xb9c8e5 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.SetSockOpt(0xc0007d5908, 0xccd845?, {{0x3}, {0x107}, {0x5}, {0x200000000100}, {0x1c}, {0x0}}) pkg/sentry/syscalls/linux/sys_socket.go:551 +0x246 fp=0xc000711a78 sp=0xc000711998 pc=0xc2a546 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0007d5908, 0x36, {{0x3}, {0x107}, {0x5}, {0x200000000100}, {0x1c}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0x657 fp=0xc000711ca8 sp=0xc000711a78 pc=0xa777f7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0007d5908, 0x36, {{0x3}, {0x107}, {0x5}, {0x200000000100}, {0x1c}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x45 fp=0xc000711d00 sp=0xc000711ca8 pc=0xa78965 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0007d5908, 0x36, {{0x3}, {0x107}, {0x5}, {0x200000000100}, {0x1c}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0x65 fp=0xc000711d50 sp=0xc000711d00 pc=0xa78665 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00562c000?) pkg/sentry/kernel/task_syscall.go:258 +0x2a5 fp=0xc000711e28 sp=0xc000711d50 pc=0xa783e5 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc002bb0090?, 0xc0007d5908) pkg/sentry/kernel/task_run.go:269 +0xf17 fp=0xc000711f30 sp=0xc000711e28 pc=0xa6dbd7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0007d5908, 0x8fc0) pkg/sentry/kernel/task_run.go:97 +0x214 fp=0xc000711fc0 sp=0xc000711f30 pc=0xa6c634 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1() pkg/sentry/kernel/task_start.go:412 +0x25 fp=0xc000711fe0 sp=0xc000711fc0 pc=0xa76205 runtime.goexit({}) src/runtime/asm_amd64.s:1700 +0x1 fp=0xc000711fe8 sp=0xc000711fe0 pc=0x47d1a1 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 338111 pkg/sentry/kernel/task_start.go:412 +0xc5