On Thu, Mar 09, 2017 at 04:59:39PM +0100, miguel.robles@xxxxxxxxxx wrote: > On 2017-03-09 16:41, Daniel Baluta wrote: > >On Thu, Mar 9, 2017 at 4:34 PM, Miguel Robles <miguel.robles@xxxxxxxxxx> > >wrote: > >>Hello all, > >> > >>I am beginning with Linux Kernel development. So I am trying to make > >>the IIO tasks posted on kernelnewbies DOT org. > >>But I got stuck with this problem that I am describing you hereafter > >>hoping that someone could bring me any feedback. > >> > >>Many thanks, > >>Miguel ROBLES > >> > >>---------- > >>DESCRIPTION > >>----------- > >> > >>After loading the corresponding IIO modules and mountig the configfs > >>filesystem > >>I can not create an instance device with mkdir using the command: > >> > >>$ sudo mkdir /config/iio/devices/dummy/my_dummy_device > >>Killed > >> > >>I get the "Killed" message and looking at my syslog file, I got the > >>warning > >>"refcount_t: increment on 0; use-after-free" followed by an "Oops" > >>message. > >>When trying to execute the command one more time, the execution never > >>finishes. > >> > >> > >>------ > >>CONTEXT > >>------- > >> > >>- Tried on 2 linux kernel releases: > >> - kernel: 4.10 (commit: 4977ab6) > >> - Kernel: 4.11 (commit: ec3b93a) > >> > >>- Compiled with config file including the following options for IIO: > >> > >># > >># IIO dummy driver > >># > >>CONFIG_IIO_DUMMY_EVGEN=m > >>CONFIG_IIO_SIMPLE_DUMMY=m > >>CONFIG_IIO_SIMPLE_DUMMY_EVENTS=y > >>CONFIG_IIO_SIMPLE_DUMMY_BUFFER=y > >> > >>CONFIG_IIO_CONFIGFS=m > > > >Do you also have CONFIG_IIO_SW_DEVICE right? > > Yes, and the value is: CONFIG_IIO_SW_DEVICE=m. > > Thank you, > Miguel > > > >Will try to have a look at this asap. > > > > > >thanks, > >Daniel. Daniel, You probably saw, but just in case... I verified that the process, including the above mkdir, is working on 4.10-rc3. (So, I'm relieved the Outreachy applicants won't start hitting it.) alisons > -- > To unsubscribe from this list: send the line "unsubscribe linux-iio" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
