On 03.07.20 08:22, Richard Weinberger wrote:
----- Ursprüngliche Mail -----
In contrast, on regular Linux rmmod will refuse to unload the module
if the device node is still open because fops_get() or other helpers
gained a reference on the owner.
First of all, your driver is apparently not reacting on the close
request that it receives in that case. This leads the the stall you see.
Huh? rmmmod triggers close of what?
*confused*
rmmod -> module cleanup -> rtdm_dev_unregister -> rtdm_device_flush_fds
Still, we could indeed run some module_put/get on open/socket/close. I
thought we did, but that was once RTnet [1].
Yes. Would be nice. :-)
Just like a patch would be...
Jan
--
Siemens AG, Corporate Technology, CT RDA IOT SES-DE
Corporate Competence Center Embedded Linux
