Re: 2.6.0-test6 module autoloading and reference counting broken?

[Rusty Russell]

In message <16253.27644.578089.345998@xxxxxxxxxxxxxxxxxx> you write:
> FYI,
> 
> I'm seeing incorrect reference counting behaviour and module
> loading semi-failures in 2.6.0-test6.
> 
> I have a misc char driver module which announces an alias
> via a MODULE_ALIAS("char-major-10-<nnn>") declaration.
> 
> The first attempt by user-space to open the device node fails
> with ENODEV. However, afterwards the module _is_ loaded and its
> use count is 1 even though the user-space open() failed.

Sounds like a refcount bug somewhere (in your module, maybe?).
There's nothing magic about modules loaded via kmod, even via
aliases, unless there's a bug in drivers/char/misc.c...

Puzzled,
Rusty.
--
  Anyone who quotes me in their sig is an idiot. -- Rusty Russell.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/