panic: nested locking: tmpfs.filesystemRWMutex: goroutine 57683 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystemRWMutex).Lock(0xc0080c7cd8) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/filesystem_mutex.go:31 +0x3c gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).doCreateAt(0xc0080c7c70, {0x1f8d8c0, 0xc006276c88}, 0xc0035f4d88, 0x1, 0xc000fed408) pkg/sentry/fsimpl/tmpfs/filesystem.go:171 +0x85 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).MkdirAt(0xc0080c7c70, {0x1f8d8c0, 0xc006276c88}, 0xc0035f4d88, {0xd448?, 0xfe?}) pkg/sentry/fsimpl/tmpfs/filesystem.go:301 +0xf4 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).MkdirAt(0xc0003071e0, {0x1f8d8c0, 0xc006276c88}, 0xc0054f3c20, 0xc000fed5a8, 0xc000fed544) pkg/sentry/vfs/vfs.go:372 +0x298 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.mkdirat(0xc006276c88, 0xffffff9c, 0x20000000, 0x1ff) pkg/sentry/syscalls/linux/sys_file.go:950 +0x2ca gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Mkdirat(0xc006276c88, 0x0?, {{0xffffff9c}, {0x20000000}, {0x1ff}, {0x200000c0}, {0x20000040}, {0x0}}) pkg/sentry/syscalls/linux/sys_file.go:937 +0x36 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc006276c88, 0x102, {{0xffffff9c}, {0x20000000}, {0x1ff}, {0x200000c0}, {0x20000040}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0x995 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc006276c88, 0x102, {{0xffffff9c}, {0x20000000}, {0x1ff}, {0x200000c0}, {0x20000040}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x72 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc006276c88, 0x102, {{0xffffff9c}, {0x20000000}, {0x1ff}, {0x200000c0}, {0x20000040}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0x94 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc006276c88) pkg/sentry/kernel/task_syscall.go:258 +0x4b0 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc006276c88?, 0xc006276c88) pkg/sentry/kernel/task_run.go:269 +0x1fae gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc006276c88, 0x4d2a) pkg/sentry/kernel/task_run.go:97 +0x4fb created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 57595 pkg/sentry/kernel/task_start.go:400 +0x165