panic: Decrementing non-positive ref count 0x400050bee0, owned by vfs.Filesystem goroutine 316899 [running]: panic({0xc34ea0?, 0x400d56c290?}) GOROOT/src/runtime/panic.go:1017 +0x3cc fp=0x40005e3a40 sp=0x40005e3990 pc=0x49cec gvisor.dev/gvisor/pkg/sentry/vfs.(*FilesystemRefs).DecRef(0x400050bee0, 0x40095dd680?) bazel-out/aarch64-fastbuild/bin/pkg/sentry/vfs/filesystem_refs.go:126 +0x174 fp=0x40005e3ab0 sp=0x40005e3a40 pc=0x3788a4 gvisor.dev/gvisor/pkg/sentry/vfs.(*Filesystem).DecRef(0x40005e3b38?, {0x10d4808?, 0x400a6da000?}) pkg/sentry/vfs/filesystem.go:77 +0x58 fp=0x40005e3af0 sp=0x40005e3ab0 pc=0x377e58 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).unlockMounts(0x40007241f8, {0x10d4808, 0x400a6da000}) pkg/sentry/vfs/vfs.go:1030 +0x194 fp=0x40005e3ba0 sp=0x40005e3af0 pc=0x394aa4 gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).destroy.func1() pkg/sentry/vfs/mount.go:826 +0x30 fp=0x40005e3bd0 sp=0x40005e3ba0 pc=0x3811f0 gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).destroy(0x4000193ef0, {0x10d4808, 0x400a6da000}) pkg/sentry/vfs/mount.go:839 +0x27c fp=0x40005e3c70 sp=0x40005e3bd0 pc=0x38113c gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).DecRef(0x4000193ef0, {0x10d4808, 0x400a6da000}) pkg/sentry/vfs/mount.go:820 +0xbc fp=0x40005e3ca0 sp=0x40005e3c70 pc=0x380e8c gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).unlockMounts(0x40007241f8, {0x10d4808, 0x400a6da000}) pkg/sentry/vfs/vfs.go:1030 +0x194 fp=0x40005e3d50 sp=0x40005e3ca0 pc=0x394aa4 gvisor.dev/gvisor/pkg/sentry/vfs.(*MountNamespace).Destroy(0x40006d1c80, {0x10d4808, 0x400a6da000}) pkg/sentry/vfs/namespace.go:201 +0x90 fp=0x40005e3d90 sp=0x40005e3d50 pc=0x387d80 gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*Inode).DecRef.func1() pkg/sentry/fsimpl/nsfs/nsfs.go:96 +0x40 fp=0x40005e3dc0 sp=0x40005e3d90 pc=0x42a500 gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*inodeRefs).DecRef(0x0?, 0x40005e3e48) bazel-out/aarch64-fastbuild/bin/pkg/sentry/fsimpl/nsfs/inode_refs.go:132 +0xa0 fp=0x40005e3e30 sp=0x40005e3dc0 pc=0x429fc0 gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*Inode).DecRef(0x400a6da000?, {0x10d4808?, 0x400a6da000?}) pkg/sentry/fsimpl/nsfs/nsfs.go:96 +0x60 fp=0x40005e3e70 sp=0x40005e3e30 pc=0x42a490 gvisor.dev/gvisor/pkg/sentry/vfs.(*MountNamespace).DecRef(...) pkg/sentry/vfs/namespace.go:216 gvisor.dev/gvisor/pkg/sentry/kernel.(*runExitMain).execute(0x400a6da000, 0x400a6da000) pkg/sentry/kernel/task_exit.go:297 +0x4b4 fp=0x40005e3f20 sp=0x40005e3e70 pc=0x5cd024 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0x400a6da000, 0x2c43) pkg/sentry/kernel/task_run.go:98 +0x260 fp=0x40005e3fb0 sp=0x40005e3f20 pc=0x5d8fb0 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1() pkg/sentry/kernel/task_start.go:391 +0x2c fp=0x40005e3fd0 sp=0x40005e3fb0 pc=0x5e523c runtime.goexit() src/runtime/asm_arm64.s:1197 +0x4 fp=0x40005e3fd0 sp=0x40005e3fd0 pc=0x81834 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 316896 pkg/sentry/kernel/task_start.go:391 +0xf8