panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x173f35a] goroutine 16002 gp=0xc0003a4a80 m=59 mp=0xc000f27808 [running]: panic({0x1c93940?, 0x2d7a1d0?}) GOROOT/src/runtime/panic.go:811 +0x168 fp=0xc000ccd348 sp=0xc000ccd298 pc=0x47d728 runtime.panicmem(...) GOROOT/src/runtime/panic.go:262 runtime.sigpanic() GOROOT/src/runtime/signal_unix.go:925 +0x359 fp=0xc000ccd3a8 sp=0xc000ccd348 pc=0x4804b9 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).EventRegister(0xc0003b0000, 0xc002bc4018) pkg/sentry/fsimpl/fuse/dev.go:152 +0xba fp=0xc000ccd430 sp=0xc000ccd3a8 pc=0x173f35a gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).EventRegister(...) pkg/sentry/vfs/file_description.go:612 gvisor.dev/gvisor/pkg/sentry/vfs.(*EpollInstance).AddInterest(0xc0011ac000, 0xc0003b0000, 0x3, {0x0, {0x0, 0x0}}) pkg/sentry/vfs/epoll.go:273 +0x4e3 fp=0xc000ccd570 sp=0xc000ccd430 pc=0xb015a3 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.EpollCtl(0xc0006c1208, 0xc001e0fdd0?, {{0x4}, {0x1}, {0x3}, {0x200000001900}, {0x0}, {0x0}}) pkg/sentry/syscalls/linux/sys_epoll.go:109 +0x648 fp=0xc000ccd6c8 sp=0xc000ccd570 pc=0x11e9968 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0006c1208, 0xe9, {{0x4}, {0x1}, {0x3}, {0x200000001900}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0x94c fp=0xc000ccd960 sp=0xc000ccd6c8 pc=0xf7fbec gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0006c1208, 0xe9, {{0x4}, {0x1}, {0x3}, {0x200000001900}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x72 fp=0xc000ccda08 sp=0xc000ccd960 pc=0xf819d2 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0006c1208, 0xe9, {{0x4}, {0x1}, {0x3}, {0x200000001900}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0x94 fp=0xc000ccda78 sp=0xc000ccda08 pc=0xf813f4 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0006c1208) pkg/sentry/kernel/task_syscall.go:258 +0x490 fp=0xc000ccdb98 sp=0xc000ccda78 pc=0xf80fb0 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0006c1208?, 0xc0006c1208) pkg/sentry/kernel/task_run.go:269 +0x1ec9 fp=0xc000ccde70 sp=0xc000ccdb98 pc=0xf6d949 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0006c1208, 0x1317) pkg/sentry/kernel/task_run.go:97 +0x4ca fp=0xc000ccdfb0 sp=0xc000ccde70 pc=0xf6b0ca gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1() pkg/sentry/kernel/task_start.go:416 +0x45 fp=0xc000ccdfe0 sp=0xc000ccdfb0 pc=0xf7daa5 runtime.goexit({}) src/runtime/asm_amd64.s:1700 +0x1 fp=0xc000ccdfe8 sp=0xc000ccdfe0 pc=0x486aa1 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 15951 pkg/sentry/kernel/task_start.go:416 +0x15c