panic: kernfs.Dentry.DecRef() called without holding a reference goroutine 122 [running]: panic({0xf82ce0, 0x1368f68}) GOROOT/src/runtime/panic.go:941 +0x397 fp=0xc000b99350 sp=0xc000b99290 pc=0x4358b7 gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Dentry).DecRef(0xc000b993a0?, {0x13831b0?, 0xc000205500?}) pkg/sentry/fsimpl/kernfs/kernfs.go:290 +0xed fp=0xc000b99378 sp=0xc000b99350 pc=0x7dc18d gvisor.dev/gvisor/pkg/sentry/vfs.(*Dentry).DecRef(...) pkg/sentry/vfs/dentry.go:155 gvisor.dev/gvisor/pkg/sentry/vfs.VirtualDentry.DecRef({0xc000618380?, 0xc0005142d0?}, {0x13831b0, 0xc000205500}) pkg/sentry/vfs/vfs.go:926 +0x59 fp=0xc000b993a8 sp=0xc000b99378 pc=0x768699 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).BindAt.func2() pkg/sentry/vfs/mount.go:575 +0x32 fp=0xc000b993d8 sp=0xc000b993a8 pc=0x757692 runtime.deferreturn() GOROOT/src/runtime/panic.go:436 +0x33 fp=0xc000b99418 sp=0xc000b993d8 pc=0x4349d3 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).BindAt(0xc00003b6d0, {0x13831b0?, 0xc000205500}, 0xc000514240?, 0xc00060ce00?, 0x7?) pkg/sentry/vfs/mount.go:604 +0x565 fp=0xc000b99668 sp=0xc000b99418 pc=0x7571c5 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Mount(0xc000205500, {{0x20000240}, {0x20000280}, {0x0}, {0x2001411}, {0x0}, {0x7f27307a5e78}}) pkg/sentry/syscalls/linux/sys_mount.go:84 +0xa6c fp=0xc000b99958 sp=0xc000b99668 pc=0xac6b4c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000205500, 0xa5, {{0x20000240}, {0x20000280}, {0x0}, {0x2001411}, {0x0}, {0x7f27307a5e78}}) pkg/sentry/kernel/task_syscall.go:142 +0x80b fp=0xc000b99c98 sp=0xc000b99958 pc=0x9766ab gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000205500, 0x85?, {{0x20000240}, {0x20000280}, {0x0}, {0x2001411}, {0x0}, {0x7f27307a5e78}}) pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc000b99cf8 sp=0xc000b99c98 pc=0x977c94 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x81018f?, 0x0?, {{0x20000240}, {0x20000280}, {0x0}, {0x2001411}, {0x0}, {0x7f27307a5e78}}) pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc000b99d58 sp=0xc000b99cf8 pc=0x977885 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0003b9040?) pkg/sentry/kernel/task_syscall.go:257 +0x3ac fp=0xc000b99e50 sp=0xc000b99d58 pc=0x97754c gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0007b0480?, 0xc000205500) pkg/sentry/kernel/task_run.go:253 +0x1125 fp=0xc000b99f60 sp=0xc000b99e50 pc=0x969465 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000205500, 0x11) pkg/sentry/kernel/task_run.go:94 +0x1ec fp=0xc000b99fc0 sp=0xc000b99f60 pc=0x967cac gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1() pkg/sentry/kernel/task_start.go:378 +0x2a fp=0xc000b99fe0 sp=0xc000b99fc0 pc=0x974b4a runtime.goexit() src/runtime/asm_amd64.s:1571 +0x1 fp=0xc000b99fe8 sp=0xc000b99fe0 pc=0x4695c1 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:378 +0x105