Bug 161126

*** Bug 161127 has been marked as a duplicate of this bug. ***

Looks like a Swing bug:



(gdb) handle SIGPWR nostop noprint pass
Signal        Stop	Print	Pass to program	Description
SIGPWR        No	No	Yes		Power fail/restart
(gdb) handle SIGXCPU nostop noprint pass
Signal        Stop	Print	Pass to program	Description
SIGXCPU       No	No	Yes		CPU time limit exceeded
(gdb) file /usr/bin/gij
Reading symbols from /usr/bin/gij...Reading symbols from
/usr/lib/debug/usr/bin/gij.debug...(no debugging symbols
found)...done.
Using host libthread_db library "/lib/libthread_db.so.1".
(no debugging symbols found)...done.
(gdb) run -classpath
/usr/share/java/log4j.jar:/usr/share/java/xml-commons-apis.jar:/usr/share/java/jaxp_parser_impl.jar
org.apache.log4j.lf5.StartLogFactor5
Starting program: /usr/bin/gij -classpath
/usr/share/java/log4j.jar:/usr/share/java/xml-commons-apis.jar:/usr/share/java/jaxp_parser_impl.jar
org.apache.log4j.lf5.StartLogFactor5
Reading symbols from shared object read from target memory...(no
debugging symbols found)...done.
Loaded system supplied DSO at 0x7fc000
[Thread debugging using libthread_db enabled]
[New Thread -1208326464 (LWP 6557)]
[New Thread -1210659920 (LWP 6560)]
[New Thread -1222292560 (LWP 6561)]
[Thread -1222292560 (LWP 6561) exited]
[New Thread -1232884816 (LWP 6562)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1232884816 (LWP 6562)]
0x04ecfbee in _Jv_InterpMethod::run (this=0x64dd20, retp=0xb5e3b400,
args=0xb5e3b420)
    at ../../../libjava/interpret.cc:797
797	_Jv_InterpMethod::run (void *retp, ffi_raw *args)
Current language:  auto; currently c++
(gdb) bt
#0  0x04ecfbee in _Jv_InterpMethod::run (this=0x64dd20, retp=0xb5e3b400,
args=0xb5e3b420)
    at ../../../libjava/interpret.cc:797
#1  0x04ed48ad in _Jv_InterpMethod::run_normal (ret=0x64dd20, args=0x64dd20,
__this=0x64dd20)
    at ../../../libjava/interpret.cc:277
#2  0x0525f03c in ffi_closure_raw_SYSV (closure=Variable "closure" is not available.
) at ../../../libffi/src/x86/ffi.c:416
#3  0x0514ad12 in javax.swing.JScrollBar.fireAdjustmentValueChanged(int, int,
int) (this=0x7212e0, id=601, 
    type=5, value=325) at ../../../libjava/javax/swing/JScrollBar.java:587
#4  0x0514a6d9 in javax.swing.JScrollBar.setValue(int) (this=0x7212e0, value=325)
    at ../../../libjava/javax/swing/JScrollBar.java:411
#5  0x0525f1c7 in ffi_call_SYSV () at ../../../libffi/src/x86/sysv.S:60
#6  0x0525f189 in ffi_raw_call (cif=0x1064c40, fn=0x64dd20, rvalue=0xb5e3b788,
fake_avalue=0xb5e3b520)
    at ../../../libffi/src/x86/ffi.c:537
#7  0x04ed0fd4 in _Jv_InterpMethod::run (this=0x64dd20, retp=0xb5e3b990,
args=0xb5e3b9b0)
    at ../../../libjava/interpret.cc:1205
...

The problem has been fixed with latest kernel 2.6.12-1.1387_FC4. So it wasn't a
swing bug; moreover it fixes the eclipse hang bug and many other random hangs.
Thank you anyway :)

It still crashes with the latest kernel-2.6.12-1.1398_FC4:

$ logfactor5
/usr/share/java-utils/java-functions: line 117: 22618 Segmentation fault     
$JAVACMD $FLAGS -classpath $CLASSPATH $OPTIONS $MAIN_CLASS "$@"

For what it's worth, I'm running kernel-2.6.12-1.1398_FC4 and I see the same
stack trace as Comment #2.

it also segfaults with the latest kernel-2.6.12-1.1420_FC4

Lillian, will you see if this Swing bug is fixed in GNU Classpath HEAD?

Runs fine on Classpath+jamvm

jamvm -classpath
/usr/share/java/log4j.jar:/usr/share/java/xml-commons-apis.jar:/usr/share/java/jaxp_parser_impl.jar
org.apache.log4j.lf5.StartLogFactor5

Great, I'll wait until the fixes make their way into Rawhide via libgcj before
closing this bug.