panic: Decrementing non-positive ref count 0x4000029058, owned by tmpfs.inode goroutine 194 [running]: panic({0xb34e80?, 0x40003940a0?}) GOROOT/src/runtime/panic.go:1017 +0x3cc fp=0x40008f33b0 sp=0x40008f3300 pc=0x49cec gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inodeRefs).DecRef(0x4000029058, 0x400035f678?) bazel-out/aarch64-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/inode_refs.go:126 +0x134 fp=0x40008f3420 sp=0x40008f33b0 pc=0x47dba4 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inode).decRef(...) pkg/sentry/fsimpl/tmpfs/tmpfs.go:599 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*dentry).DecRef(0x40008f34d8?, {0xfaae68?, 0x40004e6000?}) pkg/sentry/fsimpl/tmpfs/tmpfs.go:457 +0x54 fp=0x40008f3460 sp=0x40008f3420 pc=0x483e64 gvisor.dev/gvisor/pkg/sentry/vfs.(*Dentry).DecRef(0x40008f34d8?, {0xfaae68?, 0x40004e6000?}) pkg/sentry/vfs/dentry.go:156 +0x30 fp=0x40008f3490 sp=0x40008f3460 pc=0x333bd0 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).unlockMounts(0x4000157a78, {0xfaae68, 0x40004e6000}) pkg/sentry/vfs/vfs.go:1030 +0x120 fp=0x40008f3540 sp=0x40008f3490 pc=0x3593b0 gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).destroy.func1() pkg/sentry/vfs/mount.go:826 +0x30 fp=0x40008f3570 sp=0x40008f3540 pc=0x3480c0 gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).destroy(0x40004b6630, {0xfaae68, 0x40004e6000}) pkg/sentry/vfs/mount.go:839 +0x208 fp=0x40008f3620 sp=0x40008f3570 pc=0x348018 gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).DecRef(0x40004b6630, {0xfaae68, 0x40004e6000}) pkg/sentry/vfs/mount.go:820 +0x8c fp=0x40008f3650 sp=0x40008f3620 pc=0x347ddc gvisor.dev/gvisor/pkg/sentry/vfs.VirtualDentry.DecRef({0x40004b6630?, 0x40002c1400?}, {0xfaae68, 0x40004e6000}) pkg/sentry/vfs/vfs.go:1086 +0x5c fp=0x40008f3680 sp=0x40008f3650 pc=0x3594ec gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).UmountAt.func1() pkg/sentry/vfs/mount.go:575 +0x34 fp=0x40008f36b0 sp=0x40008f3680 pc=0x347274 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).UmountAt(0x4000157a78, {0xfaae68, 0x40004e6000}, 0x0?, 0x40008f3848?, 0x40008f37cc) pkg/sentry/vfs/mount.go:602 +0x294 fp=0x40008f3780 sp=0x40008f36b0 pc=0x347024 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Umount2(0x40004e6000, 0x555a8?, {{0xe24bbd4ea9e0}, {0xa}, {0x0}, {0xf4165d9122cd}, {0xf4165d8bb3f0}, {0x8080808080808080}}) pkg/sentry/syscalls/linux/sys_mount.go:164 +0x1d4 fp=0x40008f38d0 sp=0x40008f3780 pc=0x68dfd4 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0x40004e6000, 0x27, {{0xe24bbd4ea9e0}, {0xa}, {0x0}, {0xf4165d9122cd}, {0xf4165d8bb3f0}, {0x8080808080808080}}) pkg/sentry/kernel/task_syscall.go:142 +0x4fc fp=0x40008f3c10 sp=0x40008f38d0 pc=0x5651ac gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0x40004e6000, 0x4000188000?, {{0xe24bbd4ea9e0}, {0xa}, {0x0}, {0xf4165d9122cd}, {0xf4165d8bb3f0}, {0x8080808080808080}}) pkg/sentry/kernel/task_syscall.go:322 +0x3c fp=0x40008f3c70 sp=0x40008f3c10 pc=0x56612c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x40003ca878?, 0x40003ca878?, {{0xe24bbd4ea9e0}, {0xa}, {0x0}, {0xf4165d9122cd}, {0xf4165d8bb3f0}, {0x8080808080808080}}) pkg/sentry/kernel/task_syscall.go:282 +0x58 fp=0x40008f3cd0 sp=0x40008f3c70 pc=0x565da8 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0x40002e6a90?) pkg/sentry/kernel/task_syscall.go:257 +0x274 fp=0x40008f3dd0 sp=0x40008f3cd0 pc=0x565b64 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x4000410080?, 0x40004e6000) pkg/sentry/kernel/task_run.go:269 +0xd7c fp=0x40008f3f20 sp=0x40008f3dd0 pc=0x55a3ec gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0x40004e6000, 0xb) pkg/sentry/kernel/task_run.go:98 +0x1e4 fp=0x40008f3fb0 sp=0x40008f3f20 pc=0x558fd4 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1() pkg/sentry/kernel/task_start.go:391 +0x2c fp=0x40008f3fd0 sp=0x40008f3fb0 pc=0x563bcc runtime.goexit() src/runtime/asm_arm64.s:1197 +0x4 fp=0x40008f3fd0 sp=0x40008f3fd0 pc=0x81834 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 121 pkg/sentry/kernel/task_start.go:391 +0xe4