panic: WARNING: circular locking detected: kernel.taskMutex -> mm.mappingRWMutex: goroutine 48518 [running]: gvisor.dev/gvisor/pkg/sentry/mm.(*mappingRWMutex).RLock(0xc001a1605c) bazel-out/k8-fastbuild/bin/pkg/sentry/mm/mapping_mutex.go:59 +0x3c gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withInternalMappings(0xc001a16008, {0x1ff8d60, 0xc000911208}, {0x25fa8?, 0x1bd3e80?}, {0x0?, 0x0?, 0x0?}, 0x0, 0xc001a28fe8) pkg/sentry/mm/io.go:545 +0xf8 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).CopyIn(0xc001a16008, {0x1ff8d60, 0xc000911208}, 0x20000600, {0xc000911d1c, 0x10, 0x90}, {0x10?, 0xb1?}) pkg/sentry/mm/io.go:178 +0x26b gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).CopyInBytes(0xc000911208, 0x20000600, {0xc000911d1c, 0x10, 0x90}) pkg/sentry/kernel/task_usermem.go:57 +0x8c gvisor.dev/gvisor/pkg/sentry/kernel.makeIovec({0x1fe59f0, 0xc000911208}, 0xc000911208, 0x20000600, {0xc000911d1c, 0x10, 0x90}) pkg/sentry/kernel/task_usermem.go:264 +0x98 gvisor.dev/gvisor/pkg/sentry/kernel.copyInIovecs({0x1fe59f0, 0xc000911208}, 0xc000911208, 0x20000600, 0x6) pkg/sentry/kernel/task_usermem.go:234 +0x249 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).CopyInIovecsAsSlice(...) pkg/sentry/kernel/task_usermem.go:181 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.doProcessVMOpMaybeLocked(0xc000911208, {{0x1fe5a50, 0xc001a20520}, 0x20000600, 0x6, {0x1fe5a50, 0xc001a20540}, 0x20000240, 0x3}) pkg/sentry/syscalls/linux/sys_process_vm.go:151 +0x99 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.processVMOp.func1(0xc0007f1620?) pkg/sentry/syscalls/linux/sys_process_vm.go:127 +0x112 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).WithMuLocked(0xc0007f0c88, 0xc007c2b5b0) pkg/sentry/kernel/task.go:809 +0x54 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.processVMOp(0xc000911208, {{0xe}, {0x20000240}, {0x3}, {0x20000600}, {0x6}, {0x0}}, 0x0) pkg/sentry/syscalls/linux/sys_process_vm.go:122 +0x7da gvisor.dev/gvisor/pkg/sentry/syscalls/linux.ProcessVMReadv(0xc000911208, 0x0?, {{0xe}, {0x20000240}, {0x3}, {0x20000600}, {0x6}, {0x0}}) pkg/sentry/syscalls/linux/sys_process_vm.go:38 +0x57 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000911208, 0x136, {{0xe}, {0x20000240}, {0x3}, {0x20000600}, {0x6}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0x995 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000911208, 0x136, {{0xe}, {0x20000240}, {0x3}, {0x20000600}, {0x6}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x72 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000911208, 0x136, {{0xe}, {0x20000240}, {0x3}, {0x20000600}, {0x6}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0x94 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000911208) pkg/sentry/kernel/task_syscall.go:258 +0x4b0 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000911208?, 0xc000911208) pkg/sentry/kernel/task_run.go:269 +0x1fae gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000911208, 0x31c9) pkg/sentry/kernel/task_run.go:97 +0x4fb created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 48494 pkg/sentry/kernel/task_start.go:412 +0x165 known lock chain: mm.mappingRWMutex -> kernel.taskMutex ====== mm.mappingRWMutex -> kernel.taskMutex ===== goroutine 28355 [running]: gvisor.dev/gvisor/pkg/sentry/kernel.(*taskMutex).Lock(0xc000e0cf20) bazel-out/k8-fastbuild/bin/pkg/sentry/kernel/task_mutex.go:35 +0x3c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).contextValue(0xc000e0c588, {0x1b45360, 0x1fca4d8}, 0x0) pkg/sentry/kernel/task_context.go:96 +0x57e gvisor.dev/gvisor/pkg/sentry/kernel.(*taskAsyncContext).Value(0xc00ace4f90, {0x1b45360, 0x1fca4d8}) pkg/sentry/kernel/task_context.go:159 +0x54 gvisor.dev/gvisor/pkg/sentry/vfs.RootFromContext(...) pkg/sentry/vfs/context.go:88 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).MappedName(0xc00037cd00, {0x1ff8df0, 0xc00ace4f90}) pkg/sentry/vfs/file_description.go:816 +0x77 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).appendVMAMapsEntryLocked(0xc0045f0408?, {0x1ff8df0, 0xc00ace4f90}, {0xc0045f0408?, 0x49544e?}, 0xc002e85ab8) pkg/sentry/mm/procfs.go:129 +0x2a4 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).ReadMapsDataInto(0xc0014dc008, {0x1ff8df0, 0xc00ace4f90}, 0xc002e85ab8) pkg/sentry/mm/procfs.go:85 +0x187 gvisor.dev/gvisor/pkg/sentry/fsimpl/proc.(*mapsData).Generate(0xc000afa708, {0x1ff8df0, 0xc00ace4f90}, 0xc000bfe1e0) pkg/sentry/fsimpl/proc/task_files.go:613 +0xaa gvisor.dev/gvisor/pkg/sentry/vfs.(*DynamicBytesFileDescriptionImpl).preadLocked(0xc000bfe1c0, {0x1ff8df0, 0xc00ace4f90}, {{0x1fef7b8, 0xc0014dc008}, {0x0, 0x1, 0x0, 0x0}, {0x0, ...}}, ...) pkg/sentry/vfs/file_description_impl_util.go:310 +0x195 gvisor.dev/gvisor/pkg/sentry/vfs.(*DynamicBytesFileDescriptionImpl).PRead(0xc000bfe1c0, {0x1ff8df0, 0xc00ace4f90}, {{0x1fef7b8, 0xc0014dc008}, {0x0, 0x1, 0x0, 0x0}, {0x0, ...}}, ...) pkg/sentry/vfs/file_description_impl_util.go:329 +0xc7 gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*DynamicBytesFD).PRead(0xc000bfe1c0, {0x1ff8df0, 0xc00ace4f90}, {{0x1fef7b8, 0xc0014dc008}, {0x0, 0x1, 0x0, 0x0}, {0x0, ...}}, ...) pkg/sentry/fsimpl/kernfs/dynamic_bytes_file.go:133 +0xa6 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).PRead(0xc000bfe220, {0x1ff8df0, 0xc00ace4f90}, {{0x1fef7b8, 0xc0014dc008}, {0x0, 0x1, 0x0, 0x0}, {0x0, ...}}, ...) pkg/sentry/vfs/file_description.go:636 +0x18a gvisor.dev/gvisor/pkg/sentry/syscalls/linux.submitCallback.getAIOCallback.func1({0x1ff8df0, 0xc00ace4f90}) pkg/sentry/syscalls/linux/sys_aio.go:361 +0x395 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).QueueAIO.func1() pkg/sentry/kernel/aio.go:30 +0x50 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).QueueAIO in goroutine 28402 pkg/sentry/kernel/aio.go:29 +0x1f5