panic: runtime error: integer divide by zero goroutine 68436 gp=0xc0025e5880 m=53 mp=0xc002c30008 [running]: panic({0x11c8080?, 0x20e4b40?}) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc000539680 sp=0xc0005395d0 pc=0x4740c8 runtime.panicdivide() bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:241 +0x3e fp=0xc0005396a0 sp=0xc000539680 pc=0x43945e gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*ringBuffer).init(0xaf6a2f?, {0x15cd040?, 0xc00140d908?}, 0xaf6a80?) pkg/sentry/socket/netstack/packetmmap/ring_buffer.go:62 +0x45f fp=0xc000539768 sp=0xc0005396a0 pc=0xae3aff gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*Endpoint).Init(0xc0008a6000?, {0x15cd040?, 0xc00140d908?}, {0xc0019a2100, 0x1, 0x1, 0xc0033cf008, 0xc0008a60f0, 0xc00298c030, 0x0, ...}) pkg/sentry/socket/netstack/packetmmap/endpoint.go:128 +0x265 fp=0xc0005397b8 sp=0xc000539768 pc=0xae14a5 gvisor.dev/gvisor/pkg/sentry/socket/netstack.setSockOptPacket(0xc00140d908, {0xc0005398e0?, 0x40e7ff?}, {0x7f35c5533e40, 0xc0008a6000}, 0xc000539901?, {0xc00140e41c?, 0xc000539908?, 0xc000e1f008?}) pkg/sentry/socket/netstack/netstack.go:2745 +0x315 fp=0xc000539898 sp=0xc0005397b8 pc=0xba52f5 gvisor.dev/gvisor/pkg/sentry/socket/netstack.SetSockOpt(0x8dcbc0?, {0x15df0d8?, 0xc0009d4140?}, {0x7f35c5533e40?, 0xc0008a6000?}, 0xc00140d908?, 0xc000539988?, {0xc00140e41c, 0x1c, 0x90}) pkg/sentry/socket/netstack/netstack.go:1873 +0x148 fp=0xc0005398f0 sp=0xc000539898 pc=0xba2468 gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*sock).SetSockOpt(0xc0009d4140, 0xc00140d908?, 0x107?, 0x5?, {0xc00140e41c, 0x1c?, 0x90?}) pkg/sentry/socket/netstack/netstack.go:634 +0x225 fp=0xc000539998 sp=0xc0005398f0 pc=0xb9c8e5 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.SetSockOpt(0xc00140d908, 0xc000539b10?, {{0x13}, {0x107}, {0x5}, {0x200000000380}, {0x1c}, {0x0}}) pkg/sentry/syscalls/linux/sys_socket.go:551 +0x246 fp=0xc000539a78 sp=0xc000539998 pc=0xc2a546 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00140d908, 0x36, {{0x13}, {0x107}, {0x5}, {0x200000000380}, {0x1c}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0x657 fp=0xc000539ca8 sp=0xc000539a78 pc=0xa777f7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00140d908, 0x36, {{0x13}, {0x107}, {0x5}, {0x200000000380}, {0x1c}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x45 fp=0xc000539d00 sp=0xc000539ca8 pc=0xa78965 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00140d908, 0x36, {{0x13}, {0x107}, {0x5}, {0x200000000380}, {0x1c}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0x65 fp=0xc000539d50 sp=0xc000539d00 pc=0xa78665 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc002705c70?) pkg/sentry/kernel/task_syscall.go:258 +0x2a5 fp=0xc000539e28 sp=0xc000539d50 pc=0xa783e5 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0026c2cf0?, 0xc00140d908) pkg/sentry/kernel/task_run.go:269 +0xf17 fp=0xc000539f30 sp=0xc000539e28 pc=0xa6dbd7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00140d908, 0x4285) pkg/sentry/kernel/task_run.go:97 +0x214 fp=0xc000539fc0 sp=0xc000539f30 pc=0xa6c634 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1() pkg/sentry/kernel/task_start.go:412 +0x25 fp=0xc000539fe0 sp=0xc000539fc0 pc=0xa76205 runtime.goexit({}) src/runtime/asm_amd64.s:1700 +0x1 fp=0xc000539fe8 sp=0xc000539fe0 pc=0x47d1a1 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 68629 pkg/sentry/kernel/task_start.go:412 +0xc5