panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0xa8 pc=0xf2da50] goroutine 227 [running]: panic(0x115ee60, 0x1d353c0) GOROOT/src/runtime/panic.go:1065 +0x565 fp=0xc0004b72b8 sp=0xc0004b71f0 pc=0x437c65 runtime.panicmem() GOROOT/src/runtime/panic.go:212 +0x5b fp=0xc0004b72d8 sp=0xc0004b72b8 pc=0x435cbb runtime.sigpanic() GOROOT/src/runtime/signal_unix.go:734 +0x173 fp=0xc0004b7310 sp=0xc0004b72d8 pc=0x44fa93 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*connection).callFuture(0xc000742ae0, 0xc000310000, 0xc0005da0c0, 0x1b00000030, 0x8, 0x1) pkg/sentry/fsimpl/fuse/connection.go:299 +0x30 fp=0xc0004b7370 sp=0xc0004b7310 pc=0xf2da50 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*connection).Call(0xc000742ae0, 0xc000310000, 0xc0005da0c0, 0x1, 0xc00000001b, 0x14c1390) pkg/sentry/fsimpl/fuse/connection.go:275 +0xb8 fp=0xc0004b73e0 sp=0xc0004b7370 pc=0xf2d7f8 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*inode).Open(0xc000599400, 0x14c52f8, 0xc000310000, 0xc000690000, 0xc00032f320, 0x40, 0x0, 0xc0001fa430, 0xc0004e9523) pkg/sentry/fsimpl/fuse/fusefs.go:462 +0x4cb fp=0xc0004b7480 sp=0xc0004b73e0 pc=0xf33fcb gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).OpenAt(0xc00045a600, 0x14c52f8, 0xc000310000, 0xc000690000, 0x40, 0x0, 0x0, 0x0) pkg/sentry/fsimpl/kernfs/filesystem.go:523 +0x124f fp=0xc0004b76d8 sp=0xc0004b7480 pc=0x85e66f gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).OpenAt(0xc000508180, 0x14c52f8, 0xc000310000, 0xc000742900, 0xc0004e99d0, 0xc0004b79b8, 0x100, 0xc00036f740, 0xc000472900) pkg/sentry/vfs/vfs.go:437 +0x196 fp=0xc0004b7918 sp=0xc0004b76d8 pc=0x76dcf6 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.openat(0xc000310000, 0xffffff9c, 0x20001fc0, 0xc000002040, 0x0, 0x0, 0x0, 0x0, 0x0) pkg/sentry/syscalls/linux/vfs2/filesystem.go:179 +0x2c5 fp=0xc0004b7ab8 sp=0xc0004b7918 pc=0xe659c5 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.Openat(0xc000310000, 0xffffff9c, 0x20001fc0, 0x2040, 0x0, 0x7f076bb72700, 0x0, 0x222b7, 0xc0004e9bf4, 0x40000002, ...) pkg/sentry/syscalls/linux/vfs2/filesystem.go:158 +0x55 fp=0xc0004b7b10 sp=0xc0004b7ab8 pc=0xe65615 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000310000, 0x101, 0xffffff9c, 0x20001fc0, 0x2040, 0x0, 0x7f076bb72700, 0x0, 0x0, 0x131baa0, ...) pkg/sentry/kernel/task_syscall.go:103 +0x13c fp=0xc0004b7c70 sp=0xc0004b7b10 pc=0x9f411c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000310000, 0x101, 0xffffff9c, 0x20001fc0, 0x2040, 0x0, 0x7f076bb72700, 0x0, 0x7f076bb72700, 0x0) pkg/sentry/kernel/task_syscall.go:238 +0x66 fp=0xc0004b7cf8 sp=0xc0004b7c70 pc=0x9f52c6 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000310000, 0x101, 0xffffff9c, 0x20001fc0, 0x2040, 0x0, 0x7f076bb72700, 0x0, 0x14d6608, 0xc000760120) pkg/sentry/kernel/task_syscall.go:198 +0x98 fp=0xc0004b7d58 sp=0xc0004b7cf8 pc=0x9f4eb8 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000310000, 0x2, 0xc000310000) pkg/sentry/kernel/task_syscall.go:173 +0x15c fp=0xc0004b7e28 sp=0xc0004b7d58 pc=0x9f485c gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc000310000, 0x1497280, 0x0) pkg/sentry/kernel/task_run.go:254 +0xc27 fp=0xc0004b7f68 sp=0xc0004b7e28 pc=0x9e9587 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000310000, 0xf) pkg/sentry/kernel/task_run.go:95 +0x182 fp=0xc0004b7fd0 sp=0xc0004b7f68 pc=0x9e84c2 runtime.goexit() src/runtime/asm_amd64.s:1371 +0x1 fp=0xc0004b7fd8 sp=0xc0004b7fd0 pc=0x472861 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:339 +0xfe