fatal error: sync: unlock of unlocked mutex goroutine 1141 [running]: runtime.throw(0x133997c, 0x1e) GOROOT/src/runtime/panic.go:1117 +0x72 fp=0xc000196680 sp=0xc000196650 pc=0x438072 sync.throw(0x133997c, 0x1e) GOROOT/src/runtime/panic.go:1103 +0x35 fp=0xc0001966a0 sp=0xc000196680 pc=0x46cdb5 sync.(*Mutex).unlockSlow(0xc0009b4488, 0xffffffff) GOROOT/src/sync/mutex.go:196 +0xd8 fp=0xc0001966c8 sp=0xc0001966a0 pc=0x47c978 sync.(*Mutex).Unlock(...) GOROOT/src/sync/mutex.go:190 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).Read(0xc0001e0900, 0x14c1898, 0xc000acea80, 0x14bbc00, 0xc000971000, 0x0, 0x1, 0x20003040, 0x2000, 0x100, ...) pkg/sentry/fsimpl/fuse/dev.go:154 +0x252 fp=0xc0001967a0 sp=0xc0001966c8 pc=0xf2b9b2 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Read(0xc0001e0900, 0x14c1898, 0xc000acea80, 0x14bbc00, 0xc000971000, 0x0, 0x1, 0x20003040, 0x2000, 0x100, ...) pkg/sentry/vfs/file_description.go:626 +0xdb fp=0xc000196850 sp=0xc0001967a0 pc=0x7568bb gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.read(0xc000acea80, 0xc0001e0900, 0x14bbc00, 0xc000971000, 0x0, 0x1, 0x20003040, 0x2000, 0x100, 0x0, ...) pkg/sentry/syscalls/linux/vfs2/read_write.go:94 +0x9b fp=0xc0001969e0 sp=0xc000196850 pc=0xe6df1b gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.Read(0xc000acea80, 0x3, 0x20003040, 0x2000, 0x7fe50f5d19d0, 0x0, 0x7fe50f5d1700, 0x0, 0x0, 0x0, ...) pkg/sentry/syscalls/linux/vfs2/read_write.go:63 +0x245 fp=0xc000196b10 sp=0xc0001969e0 pc=0xe6d805 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000acea80, 0x0, 0x3, 0x20003040, 0x2000, 0x7fe50f5d19d0, 0x0, 0x7fe50f5d1700, 0x0, 0x1318be0, ...) pkg/sentry/kernel/task_syscall.go:103 +0x13c fp=0xc000196c70 sp=0xc000196b10 pc=0x9f169c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000acea80, 0x0, 0x3, 0x20003040, 0x2000, 0x7fe50f5d19d0, 0x0, 0x7fe50f5d1700, 0x0, 0x7fe50f5d1700) pkg/sentry/kernel/task_syscall.go:238 +0x66 fp=0xc000196cf8 sp=0xc000196c70 pc=0x9f2846 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000acea80, 0x0, 0x3, 0x20003040, 0x2000, 0x7fe50f5d19d0, 0x0, 0x7fe50f5d1700, 0x14d2aa8, 0xc000996d80) pkg/sentry/kernel/task_syscall.go:198 +0x98 fp=0xc000196d58 sp=0xc000196cf8 pc=0x9f2438 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000acea80, 0x2, 0xc000acea80) pkg/sentry/kernel/task_syscall.go:173 +0x15c fp=0xc000196e28 sp=0xc000196d58 pc=0x9f1ddc gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc000acea80, 0x1493a80, 0x0) pkg/sentry/kernel/task_run.go:254 +0xc27 fp=0xc000196f68 sp=0xc000196e28 pc=0x9e6b67 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000acea80, 0x93) pkg/sentry/kernel/task_run.go:95 +0x182 fp=0xc000196fd0 sp=0xc000196f68 pc=0x9e5aa2 runtime.goexit() src/runtime/asm_amd64.s:1371 +0x1 fp=0xc000196fd8 sp=0xc000196fd0 pc=0x472861 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:342 +0xfe