panic: Decrementing non-positive ref count 0x4000740d00, owned by vfs.Filesystem goroutine 190 [running]: panic({0xc34ea0?, 0x40007921a0?}) GOROOT/src/runtime/panic.go:1017 +0x3cc fp=0x400010f9e0 sp=0x400010f930 pc=0x49cec gvisor.dev/gvisor/pkg/sentry/vfs.(*FilesystemRefs).DecRef(0x4000740d00, 0x4000660bf0?) bazel-out/aarch64-fastbuild/bin/pkg/sentry/vfs/filesystem_refs.go:126 +0x174 fp=0x400010fa50 sp=0x400010f9e0 pc=0x3788a4 gvisor.dev/gvisor/pkg/sentry/vfs.(*Filesystem).DecRef(0x400010fad8?, {0x10d4808?, 0x40002baa80?}) pkg/sentry/vfs/filesystem.go:77 +0x58 fp=0x400010fa90 sp=0x400010fa50 pc=0x377e58 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).unlockMounts(0x400014cff8, {0x10d4808, 0x40002baa80}) pkg/sentry/vfs/vfs.go:1030 +0x194 fp=0x400010fb40 sp=0x400010fa90 pc=0x394aa4 gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).destroy.func1() pkg/sentry/vfs/mount.go:826 +0x30 fp=0x400010fb70 sp=0x400010fb40 pc=0x3811f0 gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).destroy(0x40007282c0, {0x10d4808, 0x40002baa80}) pkg/sentry/vfs/mount.go:839 +0x27c fp=0x400010fc10 sp=0x400010fb70 pc=0x38113c gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).DecRef(0x40007282c0, {0x10d4808, 0x40002baa80}) pkg/sentry/vfs/mount.go:820 +0xbc fp=0x400010fc40 sp=0x400010fc10 pc=0x380e8c gvisor.dev/gvisor/pkg/sentry/vfs.VirtualDentry.DecRef({0x40007282c0?, 0x4000a79000?}, {0x10d4808, 0x40002baa80}) pkg/sentry/vfs/vfs.go:1086 +0x70 fp=0x400010fc70 sp=0x400010fc40 pc=0x394c10 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualDentry).DecRef(0x400010fce8?, {0x10d4808?, 0x40002baa80?}) :1 +0x48 fp=0x400010fca0 sp=0x400010fc70 pc=0x3a4328 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).unlockMounts(0x400014cff8, {0x10d4808, 0x40002baa80}) pkg/sentry/vfs/vfs.go:1030 +0x194 fp=0x400010fd50 sp=0x400010fca0 pc=0x394aa4 gvisor.dev/gvisor/pkg/sentry/vfs.(*MountNamespace).Destroy(0x4000733b30, {0x10d4808, 0x40002baa80}) pkg/sentry/vfs/namespace.go:201 +0x90 fp=0x400010fd90 sp=0x400010fd50 pc=0x387d80 gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*Inode).DecRef.func1() pkg/sentry/fsimpl/nsfs/nsfs.go:96 +0x40 fp=0x400010fdc0 sp=0x400010fd90 pc=0x42a500 gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*inodeRefs).DecRef(0x0?, 0x400010fe48) bazel-out/aarch64-fastbuild/bin/pkg/sentry/fsimpl/nsfs/inode_refs.go:132 +0xa0 fp=0x400010fe30 sp=0x400010fdc0 pc=0x429fc0 gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*Inode).DecRef(0x40002baa80?, {0x10d4808?, 0x40002baa80?}) pkg/sentry/fsimpl/nsfs/nsfs.go:96 +0x60 fp=0x400010fe70 sp=0x400010fe30 pc=0x42a490 gvisor.dev/gvisor/pkg/sentry/vfs.(*MountNamespace).DecRef(...) pkg/sentry/vfs/namespace.go:216 gvisor.dev/gvisor/pkg/sentry/kernel.(*runExitMain).execute(0x40002baa80, 0x40002baa80) pkg/sentry/kernel/task_exit.go:297 +0x4b4 fp=0x400010ff20 sp=0x400010fe70 pc=0x5cd024 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0x40002baa80, 0x12) pkg/sentry/kernel/task_run.go:98 +0x260 fp=0x400010ffb0 sp=0x400010ff20 pc=0x5d8fb0 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1() pkg/sentry/kernel/task_start.go:391 +0x2c fp=0x400010ffd0 sp=0x400010ffb0 pc=0x5e523c runtime.goexit() src/runtime/asm_arm64.s:1197 +0x4 fp=0x400010ffd0 sp=0x400010ffd0 pc=0x81834 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 150 pkg/sentry/kernel/task_start.go:391 +0xf8