panic: runtime error: integer divide by zero goroutine 11156 gp=0xc000c3e8c0 m=39 mp=0xc0012d8008 [running]: panic({0x12eb2e0?, 0x23f4b00?}) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc000039678 sp=0xc0000395c8 pc=0x4740c8 runtime.panicdivide() bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:241 +0x3e fp=0xc000039698 sp=0xc000039678 pc=0x43945e gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*ringBuffer).init(0xba9f8e?, {0x171d4a0?, 0xc001b1ec88?}, 0xba9fe0?) pkg/sentry/socket/netstack/packetmmap/ring_buffer.go:62 +0x44a fp=0xc000039760 sp=0xc000039698 pc=0xb9462a gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*Endpoint).Init(0xc001b72800?, {0x171d4a0?, 0xc001b1ec88?}, {0xc001e90f80, 0x1, 0x0, 0xc000a6c808, 0xc001b728f0, 0xc001bf9a70, 0x0, ...}) pkg/sentry/socket/netstack/packetmmap/endpoint.go:128 +0x388 fp=0xc0000397b0 sp=0xc000039760 pc=0xb91a68 gvisor.dev/gvisor/pkg/sentry/socket/netstack.setSockOptPacket(0xc001b1ec88, {0xc0000398d8?, 0x40e7ff?}, {0x7f32252ad340, 0xc001b72800}, 0xc000039901?, {0xc001b1f79c?, 0xc000039908?, 0xc000e3a008?}) pkg/sentry/socket/netstack/netstack.go:2745 +0x3c5 fp=0xc000039890 sp=0xc0000397b0 pc=0xc75b25 gvisor.dev/gvisor/pkg/sentry/socket/netstack.SetSockOpt(0x1000000af77b9?, {0x172f538?, 0xc000253e00?}, {0x7f32252ad340?, 0xc001b72800?}, 0x171d4a0?, 0xc001b1ec88?, {0xc001b1f79c, 0x10, 0x90}) pkg/sentry/socket/netstack/netstack.go:1873 +0x1b1 fp=0xc0000398e8 sp=0xc000039890 pc=0xc71a91 gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*sock).SetSockOpt(0xc000253e00, 0xc001b1ec88?, 0x107?, 0x5?, {0xc001b1f79c, 0x10?, 0x90?}) pkg/sentry/socket/netstack/netstack.go:634 +0x265 fp=0xc000039998 sp=0xc0000398e8 pc=0xc6aa85 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.SetSockOpt(0xc001b1ec88, 0xc000c3e8c0?, {{0x5}, {0x107}, {0x5}, {0x2000000000c0}, {0x10}, {0x0}}) pkg/sentry/syscalls/linux/sys_socket.go:551 +0x2f5 fp=0xc000039a78 sp=0xc000039998 pc=0xcfe495 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc001b1ec88, 0x36, {{0x5}, {0x107}, {0x5}, {0x2000000000c0}, {0x10}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0x80b fp=0xc000039ca8 sp=0xc000039a78 pc=0xb1ebcb gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc001b1ec88, 0x36, {{0x5}, {0x107}, {0x5}, {0x2000000000c0}, {0x10}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x4e fp=0xc000039d00 sp=0xc000039ca8 pc=0xb2016e gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc001b1ec88, 0x36, {{0x5}, {0x107}, {0x5}, {0x2000000000c0}, {0x10}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0x7d fp=0xc000039d50 sp=0xc000039d00 pc=0xb1fd1d gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00154c8f0?) pkg/sentry/kernel/task_syscall.go:258 +0x349 fp=0xc000039e28 sp=0xc000039d50 pc=0xb1fa09 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000c91830?, 0xc001b1ec88) pkg/sentry/kernel/task_run.go:269 +0x1325 fp=0xc000039f38 sp=0xc000039e28 pc=0xb13105 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc001b1ec88, 0x7f6) pkg/sentry/kernel/task_run.go:97 +0x27d fp=0xc000039fc0 sp=0xc000039f38 pc=0xb1171d gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1() pkg/sentry/kernel/task_start.go:412 +0x25 fp=0xc000039fe0 sp=0xc000039fc0 pc=0xb1d145 runtime.goexit({}) src/runtime/asm_amd64.s:1700 +0x1 fp=0xc000039fe8 sp=0xc000039fe0 pc=0x47d1a1 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 11175 pkg/sentry/kernel/task_start.go:412 +0xd9