[Pcsclite-muscle] Problem (sigsegv) on reconnect.
luc.mazardo at orange.com
luc.mazardo
Thu Jun 11 08:39:50 PDT 2015
Hello,
We've got some troubles with "libpcsclite". Perhaps, you could help us.
Context :
----------
We use 3 card readers (SCM SCR 3310) with pcscd on Debian Linux with
java environment.
We 've made a regular backport from latest release of 1.8.13 (remove
dependencies
to systemd named bpo60+1oab2) on squeeze (debian 6) Linux machines.
Here is a description of our environment, we are in a Java environment
(1.6.0_31) :
* Frontal : Apache / Tomcat
* Backend : Web application with API javax.smartcardio initialized with :
System.setProperty("sun.security.smartcardio.library",
/usr/lib/libpcsclite.so);
At the frequency of 5 seconds, we monitor cards on reader (haproxy check).
The problem :
Sometimes, a sigsegv occurs on libpcsclite on winscard_clnt.c:979
(void)pthread_mutex_unlock(¤tContextMap->mMutex);
This sigsegv implies sudden death of Tomcat (cf java_frames).
This part of code ( winscard_clnt.c:971) seems a bit strange :
/* the hCard handle is now invalid
* -> another thread may have called SCardReleaseContext
* so the mMutex has been unlocked (and is now invalid)
* -> another thread may have called SCardDisconnect
* so the mMutex is STILL locked
* since we don't know just unlock the mutex */
Why releasing mutex since "mMutex has been unlocked (and is now invalid)" ?
Here is the configuration of the machine.
CCID driver version (dpkg -l | grep -i ccid)
-------------------------
libccid 1.3.11-2
pcsc-lite version
---------------------
ii libpcsclite-dev 1.8.13~bpo60+1oab2 Middleware to access
a smart card using PC/SC (development files)
ii libpcsclite1 1.8.13~bpo60+1oab2 Middleware to
access a smart card using PC/SC (library)
ii libpcsclite1-dbg 1.8.13~bpo60+1oab2 Middleware to access
a smart card using PC/SC (debugging symbols)
ii pcscd 1.8.13~bpo60+1oab2 Middleware to
access a smart card using PC/SC (daemon side)
smart card reader name
--------------------------------
0: SCM SCR 3310 [CCID Interface] 00 00
1: SCM SCR 3310 [CCID Interface] 01 00
2: SCM SCR 3310 [CCID Interface] 02 00
the output of the command "|/usr/sbin/pcscd --version|"
------------------------------------
pcsc-lite version 1.8.13.
Copyright (C) 1999-2002 by David Corcoran <corcoran at musclecard.com>.
Copyright (C) 2001-2011 by Ludovic Rousseau <ludovic.rousseau at free.fr>.
Copyright (C) 2003-2004 by Damien Sauveron <sauveron at labri.fr>.
Report bugs to <muscle at lists.musclecard.com>.
Enabled features: Linux x86_64-pc-linux-gnu serial usb libudev
usbdropdir=/usr/lib/pcsc/drivers ipcdir=/var/run/pcscd
configdir=/etc/reader.conf.d
configuration of pcscd : /etc/default/pcscd
-----------------------------
DAEMON_ARGS="--max-card-handle-per-reader 1"
--
Luc Mazardo
Orange Applications for Business
_________________________________________________________________________________________________________________________
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Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j sun.security.smartcardio.PCSC.SCardStatus(J[B)[B+0
J com.multimediabs.card.connection.CardSelector.cardsByAtr()Ljava/util/Map;
j com.multimediabs.card.connection.CardSelector.atrs()Ljava/util/Set;+0
j com.multimediabs.tsm.fns.monitoring.MonitoringServlet.getAvailableAtrs()Ljava/util/List;+5
j com.multimediabs.tsm.fns.monitoring.MonitoringServlet.getAtrs()Ljava/lang/String;+6
j com.multimediabs.tsm.fns.monitoring.MonitoringServlet.monitoring()Lcom/multimediabs/nfc/common/web/monitoring/MonitoringBuilder$Builder;+10
j com.multimediabs.tsm.fns.monitoring.MonitoringServlet.doGet(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+31
j javax.servlet.http.HttpServlet.service(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+35
j javax.servlet.http.HttpServlet.service(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+30
j org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+376
j org.apache.catalina.core.ApplicationFilterChain.doFilter(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+101
j org.apache.catalina.core.StandardWrapperValve.invoke(Lorg/apache/catalina/connector/Request;Lorg/apache/catalina/connector/Response;)V+804
j org.apache.catalina.core.StandardContextValve.invoke(Lorg/apache/catalina/connector/Request;Lorg/apache/catalina/connector/Response;)V+365
j org.apache.catalina.core.StandardHostValve.invoke(Lorg/apache/catalina/connector/Request;Lorg/apache/catalina/connector/Response;)V+64
j org.apache.catalina.valves.ErrorReportValve.invoke(Lorg/apache/catalina/connector/Request;Lorg/apache/catalina/connector/Response;)V+6
j org.apache.catalina.core.StandardEngineValve.invoke(Lorg/apache/catalina/connector/Request;Lorg/apache/catalina/connector/Response;)V+42
j org.apache.catalina.connector.CoyoteAdapter.service(Lorg/apache/coyote/Request;Lorg/apache/coyote/Response;)V+158
j org.apache.jk.server.JkCoyoteHandler.invoke(Lorg/apache/jk/core/Msg;Lorg/apache/jk/core/MsgContext;)I+123
j org.apache.jk.common.HandlerRequest.invoke(Lorg/apache/jk/core/Msg;Lorg/apache/jk/core/MsgContext;)I+374
j org.apache.jk.common.ChannelSocket.invoke(Lorg/apache/jk/core/Msg;Lorg/apache/jk/core/MsgContext;)I+191
J org.apache.jk.common.ChannelSocket.processConnection(Lorg/apache/jk/core/MsgContext;)V
j org.apache.jk.common.ChannelSocket$SocketConnection.runIt([Ljava/lang/Object;)V+8
j org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run()V+167
j java.lang.Thread.run()V+11
v ~StubRoutines::call_stub
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