Re: request_firmware API exhaust memory

Greg KH
2010-04-25T16:36:30Z

On Thu, Apr 22, 2010 at 01:22:51AM +0300, Tomas Winkler wrote:
> On Mon, Apr 19, 2010 at 5:59 PM, Greg KH <greg@kroah.com> wrote:
> > On Mon, Apr 19, 2010 at 03:20:34PM +0300, Tomas Winkler wrote:
> >> Lately we've been developing a device that rather more extensively
> >> used request_firmware API in load and also using pm_notifiers to load
> >> firmware.
> >
> > Do you have a pointer to your driver source anywhere that shows how you
> > are trying to use the firmware api in this manner?
>
> I've attached a very simple test driver I'm using. Just wanted to
> eliminate anything else.
> Bellow is a little script that loads and releases the firmware. My
> previous observation was wrong.
> The free memory gradually decreases regardless of number or dangling
> udevd forks, which are eventually collected if the sleep period is
> long enough ~10s.

That sounds normal for the free memory. Kay, that's also to be expected
for the udevd forks as well, right?

thanks,

greg k-h