[Pcsclite-muscle] Unplugging & replugging a device causes SIGSEGV

[Ludovic Rousseau]

2014-10-02 12:35 GMT+02:00 Giuseppe M <gdm23 at iragan.org>:
> Hello,

Hello,

> I am using the following setup:
> driver ifokccid v4.0.5.4 (OEM-provided, closed source)
> pcscd v1.8.12 (current SVN trunk + patch from my other email)
> Ubuntu 14.04
>
> Reader: Omnikey 6121

Please use my CCID driver
http://pcsclite.alioth.debian.org/ccid.html

The Omnikey 6121 should work
http://pcsclite.alioth.debian.org/ccid/shouldwork.html#0x076B0x6622

> I am sending you a complete log output + valgrind messages.
> It was not necessary to Ctrl+C because it exited with SIGSEGV.
>
> In order to generate this log, I started pcscd with:
>         sudo valgrind --leak-check=full --show-leak-kinds=all pcscd -a -d -f
>
> Then I plugged, unplugged and re-plugged the reader. SIGSEGV happens
> instantly when replugging.
>
> Some of the entries in the log might be false positives, but perhaps
> there is some stack corruption. Although there is a closed source driver
> here :( it does not seem involved in this specific problem.

==15817== Invalid read of size 1
==15817==    at 0x545E3E0: pthread_mutex_destroy (pthread_mutex_destroy.c:31)
==15817==    by 0x6EC94FF: CCIDSlotClose (common.c:3543)
==15817==    by 0x40709C: IFDCloseIFD (ifdwrapper.c:195)
==15817==    by 0x40B9E3: RFUnInitializeReader (readerfactory.c:1070)
==15817==    by 0x40A48D: removeReader (readerfactory.c:585)
==15817==    by 0x408E56: _UnrefReader (readerfactory.c:130)
==15817==    by 0x40A3D7: RFRemoveReader (readerfactory.c:561)
==15817==    by 0x412407: HPRemoveDevice (hotplug_libudev.c:367)
==15817==    by 0x412E42: HPEstablishUSBNotifications (hotplug_libudev.c:637)
==15817==    by 0x545C181: start_thread (pthread_create.c:312)
==15817==    by 0x576CFBC: clone (clone.S:111)

CCIDSlotClose is from the proprietary driver.

> Any help to make unplugging & replugging work would be greatly
> appreciated, as I have to start pcscd in the ADD udev rule now :(

Why do you use the proprietary driver?

Bye

-- 
 Dr. Ludovic Rousseau