NationalSecurityAgency/ghidra · error · IllegalStateException

Cannot find process containing %s

Error message

Cannot find process containing %s

What it means

Thrown in TraceRmiTarget's memory-write path when the matched WriteMem method has a 'process' parameter, but getProcessForSpace(address.getAddressSpace()) returns null — meaning no process object is associated with that address space. The write needs a process context but none exists for the space the address belongs to.

Source

Thrown at Ghidra/Debug/Debugger-rmi-trace/src/main/java/ghidra/app/plugin/core/debug/service/tracermi/TraceRmiTarget.java:1197

			throw new AssertionError("Should be sequential");
		});
	}

	@Override
	public CompletableFuture<Void> writeMemoryAsync(Address address, byte[] data) {
		MatchedMethod writeMem =
			matches.getBest(WriteMemMatcher.class, null, ActionName.WRITE_MEM, WriteMemMatcher.ALL);
		if (writeMem == null) {
			return AsyncUtils.nil();
		}
		Map<String, Object> args = new HashMap<>();
		args.put(writeMem.params.get("start").name(), address);
		args.put(writeMem.params.get("data").name(), data);
		RemoteParameter paramProcess = writeMem.params.get("process");
		if (paramProcess != null) {
			TraceObject process = getProcessForSpace(address.getAddressSpace());
			if (process == null) {
				throw new IllegalStateException("Cannot find process containing " + address);
			}
			args.put(paramProcess.name(), process);
		}
		return writeMem.method.invokeAsync(args).toCompletableFuture().thenApply(__ -> null);
	}

	@Override
	public CompletableFuture<Void> readRegistersAsync(TracePlatform platform, TraceThread thread,
			int frame, Set<Register> registers) {
		MatchedMethod readRegs =
			matches.getBest(ReadRegsMatcher.class, null, ActionName.REFRESH, ReadRegsMatcher.ALL);
		if (readRegs == null) {
			return AsyncUtils.nil();
		}
		TraceObject container = thread.getObject().findRegisterContainer(frame);
		if (container == null) {
			Msg.error(this,
				"Cannot find register container for thread,frame: " + thread + "," + frame);

View on GitHub (pinned to d5f144c24d)

Solutions

1. Ensure a process is created and activated for the relevant address space before writing memory (activate the process/inferior).
2. Write to the space of the currently active process rather than an unrelated space.
3. If the space genuinely has no process, use a memory API path that does not require a process parameter.

Example fix

// before
target.writeMem(platform, address, data, monitor); // space has no process

// after
// activate/refresh the process so getProcessForSpace resolves first
process = target.getProcessForSpace(address.getAddressSpace());
if (process == null) {
    target.activate(frame); // ensure process object exists
}

TraceObject proc = target.getProcessForSpace(address.getAddressSpace());
if (proc == null) {
    throw new IllegalStateException("no process for space " + address.getAddressSpace());
}

try {
    target.writeMem(platform, address, data, monitor);
} catch (IllegalStateException e) {
    // no process for this space; activate process first
}

When it happens

Trigger: Writing memory to an address space for which the target has not reported/activated a process; writing before the process object is created or after it is removed; address space not mapped to any process in the object tree.

Common situations: Calling writeMem before the debugger has reported the process; writing to a kernel/other space that has no owning process; process was disposed/exited; the target's schema does not link the space to a process.

Related errors

• Could not set target memory
• %s: %s
• Failed to read memory
• TODO: Unoptimized byte diff
• Byte arrays cannot exceed length of variable

AI-assisted analysis of NationalSecurityAgency/ghidra@d5f144c24d (2026-08-14). Data as JSON: /api/errors/da0b7c1cdc4aac8e. Report an issue: GitHub.