panic: runtime error: integer divide by zero goroutine 33256 gp=0xc000ccc380 m=37 mp=0xc002678008 [running]: panic({0x12eb2e0?, 0x23f4b00?}) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc002253678 sp=0xc0022535c8 pc=0x4740c8 runtime.panicdivide() bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:241 +0x3e fp=0xc002253698 sp=0xc002253678 pc=0x43945e gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*ringBuffer).init(0xba9f8e?, {0x171d4a0?, 0xc000b3b208?}, 0xba9fe0?) pkg/sentry/socket/netstack/packetmmap/ring_buffer.go:62 +0x44a fp=0xc002253760 sp=0xc002253698 pc=0xb9462a gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*Endpoint).Init(0xc001f52c00?, {0x171d4a0?, 0xc000b3b208?}, {0xc0021927c0, 0x1, 0x1, 0xc001ee0008, 0xc001f52cf0, 0xc00130cf30, 0x0, ...}) pkg/sentry/socket/netstack/packetmmap/endpoint.go:128 +0x388 fp=0xc0022537b0 sp=0xc002253760 pc=0xb91a68 gvisor.dev/gvisor/pkg/sentry/socket/netstack.setSockOptPacket(0xc000b3b208, {0xc0022538d8?, 0x40e7ff?}, {0x7f63acd416d8, 0xc001f52c00}, 0xc002253901?, {0xc000b3bd1c?, 0xc002253908?, 0xc001d91008?}) pkg/sentry/socket/netstack/netstack.go:2745 +0x3c5 fp=0xc002253890 sp=0xc0022537b0 pc=0xc75b25 gvisor.dev/gvisor/pkg/sentry/socket/netstack.SetSockOpt(0x1000000af77b9?, {0x172f538?, 0xc00112d540?}, {0x7f63acd416d8?, 0xc001f52c00?}, 0x171d4a0?, 0xc000b3b208?, {0xc000b3bd1c, 0x1c, 0x90}) pkg/sentry/socket/netstack/netstack.go:1873 +0x1b1 fp=0xc0022538e8 sp=0xc002253890 pc=0xc71a91 gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*sock).SetSockOpt(0xc00112d540, 0xc000b3b208?, 0x107?, 0x5?, {0xc000b3bd1c, 0x1c?, 0x90?}) pkg/sentry/socket/netstack/netstack.go:634 +0x265 fp=0xc002253998 sp=0xc0022538e8 pc=0xc6aa85 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.SetSockOpt(0xc000b3b208, 0xc000ccc380?, {{0x3}, {0x107}, {0x5}, {0x200000000340}, {0x1c}, {0x0}}) pkg/sentry/syscalls/linux/sys_socket.go:551 +0x2f5 fp=0xc002253a78 sp=0xc002253998 pc=0xcfe495 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000b3b208, 0x36, {{0x3}, {0x107}, {0x5}, {0x200000000340}, {0x1c}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0x80b fp=0xc002253ca8 sp=0xc002253a78 pc=0xb1ebcb gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000b3b208, 0x36, {{0x3}, {0x107}, {0x5}, {0x200000000340}, {0x1c}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x4e fp=0xc002253d00 sp=0xc002253ca8 pc=0xb2016e gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000b3b208, 0x36, {{0x3}, {0x107}, {0x5}, {0x200000000340}, {0x1c}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0x7d fp=0xc002253d50 sp=0xc002253d00 pc=0xb1fd1d gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000b37c30?) pkg/sentry/kernel/task_syscall.go:258 +0x349 fp=0xc002253e28 sp=0xc002253d50 pc=0xb1fa09 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0016c2750?, 0xc000b3b208) pkg/sentry/kernel/task_run.go:269 +0x1325 fp=0xc002253f38 sp=0xc002253e28 pc=0xb13105 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000b3b208, 0x14a8) pkg/sentry/kernel/task_run.go:97 +0x27d fp=0xc002253fc0 sp=0xc002253f38 pc=0xb1171d gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1() pkg/sentry/kernel/task_start.go:412 +0x25 fp=0xc002253fe0 sp=0xc002253fc0 pc=0xb1d145 runtime.goexit({}) src/runtime/asm_amd64.s:1700 +0x1 fp=0xc002253fe8 sp=0xc002253fe0 pc=0x47d1a1 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 33238 pkg/sentry/kernel/task_start.go:412 +0xd9