Name: rmT116609 Date: 01/29/2002


java version "1.4.0-rc"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-rc-b91)
Java HotSpot(TM) Client VM (build 1.4.0-rc-b91, mixed mode)

alany@localhost:~$ uname -a
Linux localhost.localdomain 2.4.2-2 #1 Sun Apr 8 20:41:30
EDT 2001 i686 unknown
alany@localhost:~$ cat /etc/*release
Red Hat Linux release 7.1 (Seawolf)
alany@localhost:~$ rpm -query glibc
glibc-2.2.2-10



A DESCRIPTION OF THE PROBLEM :
The 1.3.x and 1.4.0-beta3 JVMs crash with a signal 11 in the
JVM_handle_linux_signal function when a write is attempted
on a remotely closed socket. The 1.2.2 version works as
expected throwing an IOException.

The issue was first discovered in an Application server
who's JVM would die whenever a web client failed to
completely drain the servlet output buffer.

REGRESSION. Last worked in version 1.2.2

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. compile attached class
2. execute it
3. telnet to port 1234 on localhost
4. (chars will be received)
5. close connection (^]q)
6. JVM will crash

EXPECTED VERSUS ACTUAL BEHAVIOR :
I expect the write method to throw an IOException.
Instead the JVM crashes with a signal 11 (segfault) in the
JVM_handle_linux_signal function.

ERROR MESSAGES/STACK TRACES THAT OCCUR :

Crash output:

Unexpected Signal : 11 occurred at PC=0x40343023
Function=JVM_handle_linux_signal+0x93
Library=/usr/java/j2sdk1.4.0/jre/lib/i386/client/libjvm.so

Current Java thread:
        at java.net.SocketOutputStream.socketWrite0(Native Method)
        at
java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)
        at
java.net.SocketOutputStream.write(SocketOutputStream.java:105)
        at TestServ.main(TestServ.java:9)

Dynamic libraries:
08048000-0804d000 r-xp 00000000 03:03 356855
/usr/java/j2sdk1.4.0/bin/java
0804d000-0804e000 rw-p 00004000 03:03 356855
/usr/java/j2sdk1.4.0/bin/java
40000000-40016000 r-xp 00000000 03:03 48453 /lib/ld-2.2.2.so
40016000-40017000 rw-p 00015000 03:03 48453 /lib/ld-2.2.2.so
40018000-40021000 r-xp 00000000 03:03 131547
/usr/java/j2sdk1.4.0/jre/lib/i386/native_threads/libhpi.so
40021000-40022000 rw-p 00008000 03:03 131547
/usr/java/j2sdk1.4.0/jre/lib/i386/native_threads/libhpi.so
40022000-40023000 r--p 00000000 03:03 16118
/usr/lib/locale/en_US/LC_IDENTIFICATION
40023000-40030000 r-xp 00000000 03:03 80638
/lib/i686/libpthread-0.9.so
40030000-40038000 rw-p 0000c000 03:03 80638
/lib/i686/libpthread-0.9.so
40038000-4003b000 r-xp 00000000 03:03 48466 /lib/libdl-2.2.2.so
4003b000-4003c000 rw-p 00002000 03:03 48466 /lib/libdl-2.2.2.so
4003c000-40162000 r-xp 00000000 03:03 80634 /lib/i686/libc-2.2.2.so
40162000-40168000 rw-p 00125000 03:03 80634 /lib/i686/libc-2.2.2.so
4016c000-4042f000 r-xp 00000000 03:03 276158
/usr/java/j2sdk1.4.0/jre/lib/i386/client/libjvm.so
4042f000-40577000 rw-p 002c2000 03:03 276158
/usr/java/j2sdk1.4.0/jre/lib/i386/client/libjvm.so
4058b000-4059e000 r-xp 00000000 03:03 48471 /lib/libnsl-2.2.2.so
4059e000-405a0000 rw-p 00012000 03:03 48471 /lib/libnsl-2.2.2.so
405a2000-405d6000 r-xp 00000000 03:03 257620
/usr/lib/libstdc++-2-libc6.1-1-2.9.0.so
405d6000-405e2000 rw-p 00033000 03:03 257620
/usr/lib/libstdc++-2-libc6.1-1-2.9.0.so
405e4000-40607000 r-xp 00000000 03:03 80636 /lib/i686/libm-2.2.2.so
40607000-40608000 rw-p 00022000 03:03 80636 /lib/i686/libm-2.2.2.so
40608000-40619000 r-xp 00000000 03:03 276181
/usr/java/j2sdk1.4.0/jre/lib/i386/libverify.so
40619000-4061b000 rw-p 00010000 03:03 276181
/usr/java/j2sdk1.4.0/jre/lib/i386/libverify.so
4061b000-4063c000 r-xp 00000000 03:03 276169
/usr/java/j2sdk1.4.0/jre/lib/i386/libjava.so
4063c000-4063e000 rw-p 00020000 03:03 276169
/usr/java/j2sdk1.4.0/jre/lib/i386/libjava.so
4063f000-40653000 r-xp 00000000 03:03 276182
/usr/java/j2sdk1.4.0/jre/lib/i386/libzip.so
40653000-40656000 rw-p 00013000 03:03 276182
/usr/java/j2sdk1.4.0/jre/lib/i386/libzip.so
40656000-41ccd000 r--s 00000000 03:03 67144
/usr/java/j2sdk1.4.0/jre/lib/rt.jar
41d0f000-41d26000 r--s 00000000 03:03 67145
/usr/java/j2sdk1.4.0/jre/lib/sunrsasign.jar
41d26000-41d94000 r--s 00000000 03:03 67138
/usr/java/j2sdk1.4.0/jre/lib/jsse.jar
41d94000-41da7000 r--s 00000000 03:03 67137
/usr/java/j2sdk1.4.0/jre/lib/jce.jar
41da7000-42028000 r--s 00000000 03:03 67126
/usr/java/j2sdk1.4.0/jre/lib/charsets.jar
4c2d3000-4c2ee000 r--p 00000000 03:03 466841
/usr/lib/locale/en_US/LC_CTYPE
4c2ee000-4c2ef000 r--p 00000000 03:03 16119
/usr/lib/locale/en_US/LC_MEASUREMENT
4c2ef000-4c2f0000 r--p 00000000 03:03 16122
/usr/lib/locale/en_US/LC_TELEPHONE
4c2f0000-4c2f1000 r--p 00000000 03:03 16117
/usr/lib/locale/en_US/LC_ADDRESS
4c2f1000-4c2f2000 r--p 00000000 03:03 16120
/usr/lib/locale/en_US/LC_NAME
4c2f2000-4c2f3000 r--p 00000000 03:03 16121
/usr/lib/locale/en_US/LC_PAPER
4c2f3000-4c2f4000 r--p 00000000 03:03 193208
/usr/lib/locale/en_US/LC_MESSAGES/SYS_LC_MESSAGES
4c2f4000-4c2f5000 r--p 00000000 03:03 321932
/usr/lib/locale/en_US/LC_MONETARY
4c2f5000-4c2fb000 r--p 00000000 03:03 273684
/usr/lib/locale/en_US/LC_COLLATE
4c2fb000-4c2fc000 r--p 00000000 03:03 16123
/usr/lib/locale/en_US/LC_TIME
4c2fc000-4c2fd000 r--p 00000000 03:03 193198
/usr/lib/locale/en_US/LC_NUMERIC
4c2fd000-4c2ff000 r-xp 00000000 03:03 452038
/usr/lib/sasl/libanonymous.so.1.0.15
4c2ff000-4c300000 rw-p 00001000 03:03 452038
/usr/lib/sasl/libanonymous.so.1.0.15
4c300000-4c303000 r-xp 00000000 03:03 452041
/usr/lib/sasl/libcrammd5.so.1.0.15
4c303000-4c304000 rw-p 00002000 03:03 452041
/usr/lib/sasl/libcrammd5.so.1.0.15
4c304000-4c306000 r-xp 00000000 03:03 452047
/usr/lib/sasl/liblogin.so.0.0.5
4c306000-4c307000 rw-p 00001000 03:03 452047
/usr/lib/sasl/liblogin.so.0.0.5
4c308000-4c312000 r-xp 00000000 03:03 48487
/lib/libnss_files-2.2.2.so
4c312000-4c313000 rw-p 00009000 03:03 48487
/lib/libnss_files-2.2.2.so
4c313000-4c31d000 r-xp 00000000 03:03 48495
/lib/libnss_nisplus-2.2.2.so
4c31d000-4c31f000 rw-p 00009000 03:03 48495
/lib/libnss_nisplus-2.2.2.so
4c31f000-4c3f3000 r-xp 00000000 03:03 49298
/lib/libnss_ldap-2.2.2.so
4c3f3000-4c400000 rw-p 000d3000 03:03 49298
/lib/libnss_ldap-2.2.2.so
4c408000-4c47f000 r-xp 00000000 03:03 48510 /lib/libdb-3.1.so
4c47f000-4c481000 rw-p 00076000 03:03 48510 /lib/libdb-3.1.so
4c481000-4c490000 r-xp 00000000 03:03 48500 /lib/libresolv-2.2.2.so
4c490000-4c491000 rw-p 0000e000 03:03 48500 /lib/libresolv-2.2.2.so
4c494000-4c49b000 r-xp 00000000 03:03 452044
/usr/lib/sasl/libdigestmd5.so.0.0.17
4c49b000-4c49c000 rw-p 00006000 03:03 452044
/usr/lib/sasl/libdigestmd5.so.0.0.17
4c49c000-4c49e000 r-xp 00000000 03:03 452050
/usr/lib/sasl/libplain.so.1.0.14
4c49e000-4c49f000 rw-p 00001000 03:03 452050
/usr/lib/sasl/libplain.so.1.0.14
4c49f000-4c4a2000 r-xp 00000000 03:03 48484
/lib/libnss_dns-2.2.2.so
4c4a2000-4c4a4000 rw-p 00002000 03:03 48484
/lib/libnss_dns-2.2.2.so
4c4a4000-4c4a6000 r--s 00000000 03:03 2776
/usr/java/j2sdk1.4.0/jre/lib/ext/dnsns.jar
4c4a7000-4c555000 r-xp 00000000 03:03 257862
/usr/lib/libcrypto.so.0.9.6
4c555000-4c560000 rw-p 000ad000 03:03 257862
/usr/lib/libcrypto.so.0.9.6
4c563000-4c569000 r-xp 00000000 03:03 48464 /lib/libcrypt-2.2.2.so
4c569000-4c56a000 rw-p 00005000 03:03 48464 /lib/libcrypt-2.2.2.so
4c591000-4c598000 r-xp 00000000 03:03 49162 /lib/libpam.so.0.74
4c598000-4c599000 rw-p 00006000 03:03 49162 /lib/libpam.so.0.74
4c7c8000-4c7d6000 r--s 00000000 03:03 2777
/usr/java/j2sdk1.4.0/jre/lib/ext/ldapsec.jar
4c7d6000-4c879000 r--s 00000000 03:03 2778
/usr/java/j2sdk1.4.0/jre/lib/ext/localedata.jar
4c879000-4c896000 r--s 00000000 03:03 2779
/usr/java/j2sdk1.4.0/jre/lib/ext/sunjce_provider.jar
4c896000-4c8a8000 r-xp 00000000 03:03 276178
/usr/java/j2sdk1.4.0/jre/lib/i386/libnet.so
4c8a8000-4c8a9000 rw-p 00011000 03:03 276178
/usr/java/j2sdk1.4.0/jre/lib/i386/libnet.so

Local Time = Thu Jan 24 17:04:51 2002
Elapsed Time = 9
#
# HotSpot Virtual Machine Error : 11
# Error ID : 4F530E43505002D3
# Please report this error at
# http://java.sun.com/cgi-bin/bugreport.cgi
#
# Java VM: Java HotSpot(TM) Client VM (1.4.0-rc-b91 mixed mode)
#
# An error report file has been saved as hs_err_pid11192.log.
# Please refer to the file for further information.
#
Aborted (core dumped)

Expected behaviour of the test case:

An exception and not a JVM crash.

Here is the output from 1.2.2:

java version "1.2.2"
Classic VM (build Linux_JDK_1.2.2_FCS, native threads, sunwjit)

Exception in thread "main" java.io.IOException: Broken pipe
        at java.net.SocketOutputStream.socketWrite(Native Method)
        at java.net.SocketOutputStream.write(SocketOutputStream.java, Compiled Code)
        at TestServ.main(TestServ.java, Compiled Code)


This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.util.*;
import java.net.*;
public class TestServ {
        public static void main(String args[]) throws Exception {
                ServerSocket listen = new ServerSocket(1234);
                Socket s = listen.accept();
                byte b = (byte)'a';
                while (true) {
                        s.getOutputStream().write(b);
                        if (b == (byte)'z') {
                                b = (byte)'a';
                        } else {
                                b++;
                        }
                }
        }
}

---------- END SOURCE ----------

Release Regression From : 1.2.2
The above release value was the last known release where this
bug was knwon to work. Since then there has been a regression.

(Review ID: 138637)
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