Re: [PATCH v3 22/28] x86: Use RCU in all users of __module_address().

On Mon, 3 Nov 2025 12:37:50 +0100, Sebastian Andrzej Siewior wrote:

Now, get_stack_info() where the warning originates: It starts with a
check to see if the stack pointer belongs to the current task's stack
frame which it does not. Then it checks if the task found is the
currently running task. That it does. So in that case, we must be
serving an exception (such as an IRQ) because the stack does not
belong to the current task.  However preemption is not disabled which
indicates that we do not do this.
This in turn suggests that nvidia replaced the stack from while
entering the syscall probably in _nv003168kms() or the binary blob
which invokes the kernel function does not have a proper ORC entry
which leads to a wrong turn in the process.

OK, I see, preemption should only be enabled in the first case, so
others are free to assume it's disabled. No bug.

Thank you.