* Insight freezes when trying to debug Mozilla
@ 2000-10-01 9:49 bstell
2000-10-03 13:36 ` Fernando Nasser
0 siblings, 1 reply; 8+ messages in thread
From: bstell @ 2000-10-01 9:49 UTC (permalink / raw)
To: insight
I'm trying to debug Mozilla using Insight.
When I run mozilla with the debug option the insight debugger comes
up and lets me start mozilla. I click the run button and it starts
and then does a break at main. When I press continue mozilla comes
up but insight never responds again (not screen refresh or button
response.
I am running version 20000930 (/usr/local/bin/gdb).
I attached a second gdb to insight's gdb.
Here is the output for the xterm where I was running gdb on gdb:
=====================================================================
[root@localhost gdb]# /usr/bin/gdb /usr/local/bin/gdb
GNU gdb 19991004
Copyright 1998 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and
you are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for
details.
This GDB was configured as "i386-redhat-linux"...
Setting up the environment for debugging gdb.
Breakpoint 1 at 0x810a062: file utils.c, line 735.
Breakpoint 2 at 0x81074ff: file top.c, line 2897.
(top-gdb) attach 22239
Attaching to program: /usr/local/bin/gdb, Pid 22239
Reading symbols from /usr/lib/libncurses.so.4...done.
Reading symbols from /usr/X11R6/lib/libX11.so.6...done.
Reading symbols from /lib/libdl.so.2...done.
Reading symbols from /lib/libm.so.6...done.
Reading symbols from /lib/libc.so.6...done.
Reading symbols from /lib/ld-linux.so.2...done.
Reading symbols from /lib/libthread_db.so.1...done.
0x40140deb in __sigsuspend (set=0x83e36c0) at
../sysdeps/unix/sysv/linux/sigsuspend.c:48
48 ../sysdeps/unix/sysv/linux/sigsuspend.c: No such file or
directory.
(top-gdb) bt
#0 0x40140deb in __sigsuspend (set=0x83e36c0) at
../sysdeps/unix/sysv/linux/sigsuspend.c:48
#1 0x80d1092 in lin_lwp_wait (pid=-1, ourstatus=0xbfffc074) at
lin-lwp.c:766
#2 0x812dd11 in thread_db_wait (pid=-1, ourstatus=0xbfffc074) at
thread-db.c:710
#3 0x80e1ad7 in gdbtk_wait (pid=-1, ourstatus=0xbfffc074) at
./gdbtk/generic/gdbtk-hooks.c:694
#4 0x80b269f in wait_for_inferior () at infrun.c:1286
#5 0x80b252c in proceed (addr=4294967295,
siggnal=TARGET_SIGNAL_DEFAULT, step=0) at infrun.c:1085
#6 0x80afba3 in continue_command (proc_count_exp=0x0, from_tty=0)
at infcmd.c:399
#7 0x80e1666 in gdbtk_call_command (cmdblk=0x8418140, arg=0x0,
from_tty=0) at ./gdbtk/generic/gdbtk-hooks.c:513
#8 0x8105915 in execute_command (p=0x89a4310 "", from_tty=0) at
top.c:1517
#9 0x80dadb5 in gdb_immediate_command (clientData=0x80dace4,
interp=0x8424fb0, objc=2, objv=0x8425c68)
at ./gdbtk/generic/gdbtk-cmds.c:892
#10 0x80da888 in wrapped_call (opaque_args=0xbfffc284) at
./gdbtk/generic/gdbtk-cmds.c:536
#11 0x81048d9 in catch_errors (func=0x80da858 <wrapped_call>,
args=0xbfffc284, errstring=0x8356883 "", mask=6)
at top.c:607
#12 0x80da78e in call_wrapper (clientData=0x80dace4,
interp=0x8424fb0, objc=2, objv=0x8425c68)
at ./gdbtk/generic/gdbtk-cmds.c:474
#13 0x82ff5f9 in TclExecuteByteCode (interp=0x8424fb0,
codePtr=0x8789528) at ./../generic/tclExecute.c:955
#14 0x82de521 in Tcl_EvalObj (interp=0x8424fb0, objPtr=0x853ccf8) at
./../generic/tclBasic.c:2645
#15 0x83297d1 in TclObjInterpProc (clientData=0x85a8d10,
interp=0x8424fb0, objc=1, objv=0x8425c64)
at ./../generic/tclProc.c:996
#16 0x82ff5f9 in TclExecuteByteCode (interp=0x8424fb0,
codePtr=0x89a4288) at ./../generic/tclExecute.c:955
#17 0x82de521 in Tcl_EvalObj (interp=0x8424fb0, objPtr=0x897ac40) at
./../generic/tclBasic.c:2645
#18 0x82eb10d in Tcl_SwitchObjCmd (dummy=0x0, interp=0x8424fb0,
objc=3, objv=0x8425c58)
---Type <return> to continue, or q <return> to quit---q
at ./../generic/tclCmdMZ.c:17Quit
(top-gdb)
Here is the output for the xterm where I was running mozilla:
=====================================================================
[bstell@localhost bin]$ ./mozilla -g 2>&1 | tee junk.mozilla.-g.log
./run-mozilla.sh -g ./mozilla-bin
MOZILLA_FIVE_HOME=.
LD_LIBRARY_PATH=.
LIBRARY_PATH=.:./components
SHLIB_PATH=.
LIBPATH=.
ADDON_PATH=.
MOZ_PROGRAM=./mozilla-bin
MOZ_TOOLKIT=
moz_debug=1
moz_debugger=
which: no ddd in
(/usr/local/bin:/bin:/usr/bin:/usr/X11R6/bin:/home/bstell/bin)
Type Manifest File:
/home/bstell/work/moz/v1/mozilla/dist/bin/components/xpti.dat
nsNativeComponentLoader: autoregistering begins.
nsNativeComponentLoader: autoregistering succeeded
nNCL: registering deferred (0)
GFX: dpi=96 t2p=0.0666667 p2t=15 depth=24
WEBSHELL+ = 1
IsPluginFile(/home/bstell/work/moz/v1/mozilla/modules/plugin/default/unix/libnullplugin.so)
LoadPlugin()
/home/bstell/work/moz/v1/mozilla/modules/plugin/default/unix/libnullplugin.so
returned 8183558
debug: edburns ns4xPlugin::CreatePlugin
debug: edburns ns4xPlugin::CreatePlugin: cleared callbacks
debug: edburns: ns4xPlugin::CreatePlugin: callbacks->newstream:
0x41181c38
plugin getvalue 1 called
plugin getvalue 2 called
plugin getmimedescription called
GetMIMEDescription() returned "*:.*:All types"
Registering plugin for: "*","All types",".*"
Initialized app shell component
{18c2f989-b09f-11d2-bcde-00805f0e1353}, rv=0x00000000
Initialized app shell component
{33e569b0-40f8-11d4-9a41-000064657374}, rv=0x00000000
ProfileName : default
ProfileDir : /home/bstell/.mozilla/default
CSSLoaderImpl::LoadAgentSheet: Load of URL
'file:///home/bstell/.mozilla/default/chrome/use
rChrome.css' failed. Error code: 16389
CSSLoaderImpl::LoadAgentSheet: Load of URL
'file:///home/bstell/.mozilla/default/chrome/use
rContent.css' failed. Error code: 16389
WEBSHELL+ = 2
Enabling Quirk StyleSheet
Note: verifyreflow is disabled
Note: styleverifytree is disabled
Note: frameverifytree is disabled
WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
JavaScript strict warning:
chrome://communicator/content/bookmarks/bookmarks.js line 960:
redeclaration of var cmd
WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
JavaScript strict warning:
chrome://communicator/content/bookmarks/bookmarks.js line 962:
redeclaration of var cmdReso
urce
WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
JavaScript strict warning:
chrome://navigator/content/navigator.js line 1518: function
readFromClipboard does not alwa
ys return a value
Start reading in bookmarks.html
Finished reading in bookmarks.html (735539 microseconds)
WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
JavaScript strict warning:
chrome://communicator/content/builtinURLs.js line 96: redeclaration
of var ds_uri
WEBSHELL+ = 3
Enabling Quirk StyleSheet
Setting content window
*** Pulling out the charset
JavaScript strict warning:
chrome://navigator/content/navigator.js line 433: reference to
undefined property window.ar
guments[1]
Loading page specified via openDialog
Opening file cookperm.txt failed
in SetSecurityButton
Error loading URL http://www.mozilla.org/: 804b001e
we don't handle eBorderStyle_close yet... please fix me
WEBSHELL+ = 4
WARNING: not calling OnDataAvailable, file
nsAsyncStreamListener.cpp, line 403
WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
JavaScript strict warning:
chrome://global/content/commonDialog.js line 122: redeclaration of
var containerID
WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
JavaScript strict warning:
chrome://global/content/commonDialog.js line 122: redeclaration of
var fieldID
WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
JavaScript strict warning:
chrome://global/content/commonDialog.js line 137: redeclaration of
var field
JavaScript strict warning:
chrome://global/content/commonDialog.js line 30: assignment to
undeclared variable param
WEBSHELL+ = 5
WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
JavaScript strict warning:
chrome://communicator/content/bookmarks/bm-panel.js line 122:
function OpenBookmarkURL does
not always return a value
WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
JavaScript strict warning:
chrome://communicator/content/bookmarks/bookmarks.js line 960:
redeclaration of var cmd
WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
JavaScript strict warning:
chrome://communicator/content/bookmarks/bookmarks.js line 962:
redeclaration of var cmdReso
urce
WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
JavaScript strict warning:
chrome://communicator/content/bookmarks/bookmarksDD.js line 323:
redeclaration of var data
WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
JavaScript strict warning:
chrome://communicator/content/bookmarks/bookmarksDD.js line 453:
redeclaration of var nodeI
ndex
nsWidget::~nsWidget() of toplevel: 11 widgets still exist.
WEBSHELL- = 4
JavaScript strict warning:
line 9: function onget does not always return a value
JavaScript strict warning:
line 9: function onset does not always return a value
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Insight freezes when trying to debug Mozilla
2000-10-01 9:49 Insight freezes when trying to debug Mozilla bstell
@ 2000-10-03 13:36 ` Fernando Nasser
2000-10-03 22:28 ` bstell
0 siblings, 1 reply; 8+ messages in thread
From: Fernando Nasser @ 2000-10-03 13:36 UTC (permalink / raw)
To: bstell; +Cc: insight
bstell@ix.netcom.com wrote:
>
> I'm trying to debug Mozilla using Insight.
>
> When I run mozilla with the debug option the insight debugger comes
> up and lets me start mozilla. I click the run button and it starts
> and then does a break at main. When I press continue mozilla comes
> up but insight never responds again (not screen refresh or button
> response.
>
I don't know much about your setup (you may be better off posting to the
Mozzila list itself), but it seems that gdb is waiting for the a Mozzila
thread to stop and it never does. Use the second gdb "up" command and see
what is being done at lin-lwp.c:766 I would guess it is a waitpid() call.
You could see what the pid is, maybe trying sending it a SIGINT...
The GUI hang because whoever wrote this wait for thread code did not include a
call back to keep the GUI alive while waiting.
One thing I notice is that your line numbers are far off from the current
version of the Linux thread support files (lin-lwp.c, thread-db.c etc).
This may be an indication that there are fixes to these things that your
version of gdb does not have. Maybe you could also try a recent gdb snapshot
(obtainable from sources.redhat.com).
Good luck,
Fernando
> I am running version 20000930 (/usr/local/bin/gdb).
>
> I attached a second gdb to insight's gdb.
> Here is the output for the xterm where I was running gdb on gdb:
> =====================================================================
>
> [root@localhost gdb]# /usr/bin/gdb /usr/local/bin/gdb
> GNU gdb 19991004
> Copyright 1998 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and
> you are
> welcome to change it and/or distribute copies of it under certain
> conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB. Type "show warranty" for
> details.
> This GDB was configured as "i386-redhat-linux"...
> Setting up the environment for debugging gdb.
> Breakpoint 1 at 0x810a062: file utils.c, line 735.
> Breakpoint 2 at 0x81074ff: file top.c, line 2897.
> (top-gdb) attach 22239
> Attaching to program: /usr/local/bin/gdb, Pid 22239
> Reading symbols from /usr/lib/libncurses.so.4...done.
> Reading symbols from /usr/X11R6/lib/libX11.so.6...done.
> Reading symbols from /lib/libdl.so.2...done.
> Reading symbols from /lib/libm.so.6...done.
> Reading symbols from /lib/libc.so.6...done.
> Reading symbols from /lib/ld-linux.so.2...done.
> Reading symbols from /lib/libthread_db.so.1...done.
> 0x40140deb in __sigsuspend (set=0x83e36c0) at
> ../sysdeps/unix/sysv/linux/sigsuspend.c:48
> 48 ../sysdeps/unix/sysv/linux/sigsuspend.c: No such file or
> directory.
> (top-gdb) bt
> #0 0x40140deb in __sigsuspend (set=0x83e36c0) at
> ../sysdeps/unix/sysv/linux/sigsuspend.c:48
> #1 0x80d1092 in lin_lwp_wait (pid=-1, ourstatus=0xbfffc074) at
> lin-lwp.c:766
> #2 0x812dd11 in thread_db_wait (pid=-1, ourstatus=0xbfffc074) at
> thread-db.c:710
> #3 0x80e1ad7 in gdbtk_wait (pid=-1, ourstatus=0xbfffc074) at
> ./gdbtk/generic/gdbtk-hooks.c:694
> #4 0x80b269f in wait_for_inferior () at infrun.c:1286
> #5 0x80b252c in proceed (addr=4294967295,
> siggnal=TARGET_SIGNAL_DEFAULT, step=0) at infrun.c:1085
> #6 0x80afba3 in continue_command (proc_count_exp=0x0, from_tty=0)
> at infcmd.c:399
> #7 0x80e1666 in gdbtk_call_command (cmdblk=0x8418140, arg=0x0,
> from_tty=0) at ./gdbtk/generic/gdbtk-hooks.c:513
> #8 0x8105915 in execute_command (p=0x89a4310 "", from_tty=0) at
> top.c:1517
> #9 0x80dadb5 in gdb_immediate_command (clientData=0x80dace4,
> interp=0x8424fb0, objc=2, objv=0x8425c68)
> at ./gdbtk/generic/gdbtk-cmds.c:892
> #10 0x80da888 in wrapped_call (opaque_args=0xbfffc284) at
> ./gdbtk/generic/gdbtk-cmds.c:536
> #11 0x81048d9 in catch_errors (func=0x80da858 <wrapped_call>,
> args=0xbfffc284, errstring=0x8356883 "", mask=6)
> at top.c:607
> #12 0x80da78e in call_wrapper (clientData=0x80dace4,
> interp=0x8424fb0, objc=2, objv=0x8425c68)
> at ./gdbtk/generic/gdbtk-cmds.c:474
> #13 0x82ff5f9 in TclExecuteByteCode (interp=0x8424fb0,
> codePtr=0x8789528) at ./../generic/tclExecute.c:955
> #14 0x82de521 in Tcl_EvalObj (interp=0x8424fb0, objPtr=0x853ccf8) at
> ./../generic/tclBasic.c:2645
> #15 0x83297d1 in TclObjInterpProc (clientData=0x85a8d10,
> interp=0x8424fb0, objc=1, objv=0x8425c64)
> at ./../generic/tclProc.c:996
> #16 0x82ff5f9 in TclExecuteByteCode (interp=0x8424fb0,
> codePtr=0x89a4288) at ./../generic/tclExecute.c:955
> #17 0x82de521 in Tcl_EvalObj (interp=0x8424fb0, objPtr=0x897ac40) at
> ./../generic/tclBasic.c:2645
> #18 0x82eb10d in Tcl_SwitchObjCmd (dummy=0x0, interp=0x8424fb0,
> objc=3, objv=0x8425c58)
> ---Type <return> to continue, or q <return> to quit---q
> at ./../generic/tclCmdMZ.c:17Quit
> (top-gdb)
>
> Here is the output for the xterm where I was running mozilla:
> =====================================================================
>
> [bstell@localhost bin]$ ./mozilla -g 2>&1 | tee junk.mozilla.-g.log
> ./run-mozilla.sh -g ./mozilla-bin
> MOZILLA_FIVE_HOME=.
> LD_LIBRARY_PATH=.
> LIBRARY_PATH=.:./components
> SHLIB_PATH=.
> LIBPATH=.
> ADDON_PATH=.
> MOZ_PROGRAM=./mozilla-bin
> MOZ_TOOLKIT=
> moz_debug=1
> moz_debugger=
> which: no ddd in
> (/usr/local/bin:/bin:/usr/bin:/usr/X11R6/bin:/home/bstell/bin)
> Type Manifest File:
> /home/bstell/work/moz/v1/mozilla/dist/bin/components/xpti.dat
> nsNativeComponentLoader: autoregistering begins.
> nsNativeComponentLoader: autoregistering succeeded
> nNCL: registering deferred (0)
> GFX: dpi=96 t2p=0.0666667 p2t=15 depth=24
> WEBSHELL+ = 1
>
> IsPluginFile(/home/bstell/work/moz/v1/mozilla/modules/plugin/default/unix/libnullplugin.so)
> LoadPlugin()
> /home/bstell/work/moz/v1/mozilla/modules/plugin/default/unix/libnullplugin.so
> returned 8183558
> debug: edburns ns4xPlugin::CreatePlugin
> debug: edburns ns4xPlugin::CreatePlugin: cleared callbacks
> debug: edburns: ns4xPlugin::CreatePlugin: callbacks->newstream:
> 0x41181c38
> plugin getvalue 1 called
> plugin getvalue 2 called
> plugin getmimedescription called
> GetMIMEDescription() returned "*:.*:All types"
> Registering plugin for: "*","All types",".*"
> Initialized app shell component
> {18c2f989-b09f-11d2-bcde-00805f0e1353}, rv=0x00000000
> Initialized app shell component
> {33e569b0-40f8-11d4-9a41-000064657374}, rv=0x00000000
> ProfileName : default
> ProfileDir : /home/bstell/.mozilla/default
> CSSLoaderImpl::LoadAgentSheet: Load of URL
> 'file:///home/bstell/.mozilla/default/chrome/use
> rChrome.css' failed. Error code: 16389
> CSSLoaderImpl::LoadAgentSheet: Load of URL
> 'file:///home/bstell/.mozilla/default/chrome/use
> rContent.css' failed. Error code: 16389
> WEBSHELL+ = 2
> Enabling Quirk StyleSheet
> Note: verifyreflow is disabled
> Note: styleverifytree is disabled
> Note: frameverifytree is disabled
> WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
> JavaScript strict warning:
> chrome://communicator/content/bookmarks/bookmarks.js line 960:
> redeclaration of var cmd
>
> WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
> JavaScript strict warning:
> chrome://communicator/content/bookmarks/bookmarks.js line 962:
> redeclaration of var cmdReso
> urce
>
> WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
> JavaScript strict warning:
> chrome://navigator/content/navigator.js line 1518: function
> readFromClipboard does not alwa
> ys return a value
>
> Start reading in bookmarks.html
> Finished reading in bookmarks.html (735539 microseconds)
> WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
> JavaScript strict warning:
> chrome://communicator/content/builtinURLs.js line 96: redeclaration
> of var ds_uri
>
> WEBSHELL+ = 3
> Enabling Quirk StyleSheet
> Setting content window
> *** Pulling out the charset
> JavaScript strict warning:
> chrome://navigator/content/navigator.js line 433: reference to
> undefined property window.ar
> guments[1]
>
> Loading page specified via openDialog
> Opening file cookperm.txt failed
> in SetSecurityButton
> Error loading URL http://www.mozilla.org/: 804b001e
> we don't handle eBorderStyle_close yet... please fix me
> WEBSHELL+ = 4
> WARNING: not calling OnDataAvailable, file
> nsAsyncStreamListener.cpp, line 403
> WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
> JavaScript strict warning:
> chrome://global/content/commonDialog.js line 122: redeclaration of
> var containerID
>
> WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
> JavaScript strict warning:
> chrome://global/content/commonDialog.js line 122: redeclaration of
> var fieldID
>
> WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
> JavaScript strict warning:
> chrome://global/content/commonDialog.js line 137: redeclaration of
> var field
>
> JavaScript strict warning:
> chrome://global/content/commonDialog.js line 30: assignment to
> undeclared variable param
>
> WEBSHELL+ = 5
> WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
> JavaScript strict warning:
> chrome://communicator/content/bookmarks/bm-panel.js line 122:
> function OpenBookmarkURL does
> not always return a value
>
> WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
> JavaScript strict warning:
> chrome://communicator/content/bookmarks/bookmarks.js line 960:
> redeclaration of var cmd
>
> WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
> JavaScript strict warning:
> chrome://communicator/content/bookmarks/bookmarks.js line 962:
> redeclaration of var cmdReso
> urce
>
> WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
> JavaScript strict warning:
> chrome://communicator/content/bookmarks/bookmarksDD.js line 323:
> redeclaration of var data
>
> WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
> JavaScript strict warning:
> chrome://communicator/content/bookmarks/bookmarksDD.js line 453:
> redeclaration of var nodeI
> ndex
>
> nsWidget::~nsWidget() of toplevel: 11 widgets still exist.
> WEBSHELL- = 4
> JavaScript strict warning:
> line 9: function onget does not always return a value
>
> JavaScript strict warning:
> line 9: function onset does not always return a value
--
Fernando Nasser
Red Hat - Toronto E-Mail: fnasser@cygnus.com
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Insight freezes when trying to debug Mozilla
2000-10-03 13:36 ` Fernando Nasser
@ 2000-10-03 22:28 ` bstell
2000-10-03 23:49 ` Fernando Nasser
0 siblings, 1 reply; 8+ messages in thread
From: bstell @ 2000-10-03 22:28 UTC (permalink / raw)
To: Fernando Nasser; +Cc: insight
Thank you for the reply.
Fernando Nasser wrote:
>
> bstell@ix.netcom.com wrote:
> >
> > I'm trying to debug Mozilla using Insight.
> >
> > When I run mozilla with the debug option the insight debugger comes
> > up and lets me start mozilla. I click the run button and it starts
> > and then does a break at main. When I press continue mozilla comes
> > up but insight never responds again (not screen refresh or button
> > response.
> >
>
> I don't know much about your setup (you may be better off posting to the
> Mozzila list itself),
I am confused: Why would I post to the Mozilla list about insight
hanging?
> but it seems that gdb is waiting for the a Mozzila
> thread to stop and it never does.
This seems to imply that the debugger depends on the application helping
the debugger.
> Use the second gdb "up" command and see
> what is being done at lin-lwp.c:766 I would guess it is a waitpid() call.
> You could see what the pid is, maybe trying sending it a SIGINT...
Line 766 of lin-lwp.c is calling sigsuspend().
>
> The GUI hang because whoever wrote this wait for thread code did not include a
> call back to keep the GUI alive while waiting.
>
> One thing I notice is that your line numbers are far off from the current
> version of the Linux thread support files (lin-lwp.c, thread-db.c etc).
> This may be an indication that there are fixes to these things that your
> version of gdb does not have. Maybe you could also try a recent gdb snapshot
> (obtainable from sources.redhat.com).
For this test/message I downloaded/build/installed
"insight+dejagnu-20000930.tar.bz2"
which build and installed a new gdb.
This download included lin-lwp.c and thread-db.c which were compiled and
linked into the new gdb.
Do you think they are out of data or did you means something different?
>
> Good luck,
> Fernando
>
> > I am running version 20000930 (/usr/local/bin/gdb).
> >
> > I attached a second gdb to insight's gdb.
> > Here is the output for the xterm where I was running gdb on gdb:
> > =====================================================================
> >
> > [root@localhost gdb]# /usr/bin/gdb /usr/local/bin/gdb
> > GNU gdb 19991004
> > Copyright 1998 Free Software Foundation, Inc.
> > GDB is free software, covered by the GNU General Public License, and
> > you are
> > welcome to change it and/or distribute copies of it under certain
> > conditions.
> > Type "show copying" to see the conditions.
> > There is absolutely no warranty for GDB. Type "show warranty" for
> > details.
> > This GDB was configured as "i386-redhat-linux"...
> > Setting up the environment for debugging gdb.
> > Breakpoint 1 at 0x810a062: file utils.c, line 735.
> > Breakpoint 2 at 0x81074ff: file top.c, line 2897.
> > (top-gdb) attach 22239
> > Attaching to program: /usr/local/bin/gdb, Pid 22239
> > Reading symbols from /usr/lib/libncurses.so.4...done.
> > Reading symbols from /usr/X11R6/lib/libX11.so.6...done.
> > Reading symbols from /lib/libdl.so.2...done.
> > Reading symbols from /lib/libm.so.6...done.
> > Reading symbols from /lib/libc.so.6...done.
> > Reading symbols from /lib/ld-linux.so.2...done.
> > Reading symbols from /lib/libthread_db.so.1...done.
> > 0x40140deb in __sigsuspend (set=0x83e36c0) at
> > ../sysdeps/unix/sysv/linux/sigsuspend.c:48
> > 48 ../sysdeps/unix/sysv/linux/sigsuspend.c: No such file or
> > directory.
> > (top-gdb) bt
> > #0 0x40140deb in __sigsuspend (set=0x83e36c0) at
> > ../sysdeps/unix/sysv/linux/sigsuspend.c:48
> > #1 0x80d1092 in lin_lwp_wait (pid=-1, ourstatus=0xbfffc074) at
> > lin-lwp.c:766
> > #2 0x812dd11 in thread_db_wait (pid=-1, ourstatus=0xbfffc074) at
> > thread-db.c:710
> > #3 0x80e1ad7 in gdbtk_wait (pid=-1, ourstatus=0xbfffc074) at
> > ./gdbtk/generic/gdbtk-hooks.c:694
> > #4 0x80b269f in wait_for_inferior () at infrun.c:1286
> > #5 0x80b252c in proceed (addr=4294967295,
> > siggnal=TARGET_SIGNAL_DEFAULT, step=0) at infrun.c:1085
> > #6 0x80afba3 in continue_command (proc_count_exp=0x0, from_tty=0)
> > at infcmd.c:399
> > #7 0x80e1666 in gdbtk_call_command (cmdblk=0x8418140, arg=0x0,
> > from_tty=0) at ./gdbtk/generic/gdbtk-hooks.c:513
> > #8 0x8105915 in execute_command (p=0x89a4310 "", from_tty=0) at
> > top.c:1517
> > #9 0x80dadb5 in gdb_immediate_command (clientData=0x80dace4,
> > interp=0x8424fb0, objc=2, objv=0x8425c68)
> > at ./gdbtk/generic/gdbtk-cmds.c:892
> > #10 0x80da888 in wrapped_call (opaque_args=0xbfffc284) at
> > ./gdbtk/generic/gdbtk-cmds.c:536
> > #11 0x81048d9 in catch_errors (func=0x80da858 <wrapped_call>,
> > args=0xbfffc284, errstring=0x8356883 "", mask=6)
> > at top.c:607
> > #12 0x80da78e in call_wrapper (clientData=0x80dace4,
> > interp=0x8424fb0, objc=2, objv=0x8425c68)
> > at ./gdbtk/generic/gdbtk-cmds.c:474
> > #13 0x82ff5f9 in TclExecuteByteCode (interp=0x8424fb0,
> > codePtr=0x8789528) at ./../generic/tclExecute.c:955
> > #14 0x82de521 in Tcl_EvalObj (interp=0x8424fb0, objPtr=0x853ccf8) at
> > ./../generic/tclBasic.c:2645
> > #15 0x83297d1 in TclObjInterpProc (clientData=0x85a8d10,
> > interp=0x8424fb0, objc=1, objv=0x8425c64)
> > at ./../generic/tclProc.c:996
> > #16 0x82ff5f9 in TclExecuteByteCode (interp=0x8424fb0,
> > codePtr=0x89a4288) at ./../generic/tclExecute.c:955
> > #17 0x82de521 in Tcl_EvalObj (interp=0x8424fb0, objPtr=0x897ac40) at
> > ./../generic/tclBasic.c:2645
> > #18 0x82eb10d in Tcl_SwitchObjCmd (dummy=0x0, interp=0x8424fb0,
> > objc=3, objv=0x8425c58)
> > ---Type <return> to continue, or q <return> to quit---q
> > at ./../generic/tclCmdMZ.c:17Quit
> > (top-gdb)
> >
> > Here is the output for the xterm where I was running mozilla:
> > =====================================================================
> >
> > [bstell@localhost bin]$ ./mozilla -g 2>&1 | tee junk.mozilla.-g.log
> > ./run-mozilla.sh -g ./mozilla-bin
> > MOZILLA_FIVE_HOME=.
> > LD_LIBRARY_PATH=.
> > LIBRARY_PATH=.:./components
> > SHLIB_PATH=.
> > LIBPATH=.
> > ADDON_PATH=.
> > MOZ_PROGRAM=./mozilla-bin
> > MOZ_TOOLKIT=
> > moz_debug=1
> > moz_debugger=
> > which: no ddd in
> > (/usr/local/bin:/bin:/usr/bin:/usr/X11R6/bin:/home/bstell/bin)
> > Type Manifest File:
> > /home/bstell/work/moz/v1/mozilla/dist/bin/components/xpti.dat
> > nsNativeComponentLoader: autoregistering begins.
> > nsNativeComponentLoader: autoregistering succeeded
> > nNCL: registering deferred (0)
> > GFX: dpi=96 t2p=0.0666667 p2t=15 depth=24
> > WEBSHELL+ = 1
> >
> > IsPluginFile(/home/bstell/work/moz/v1/mozilla/modules/plugin/default/unix/libnullplugin.so)
> > LoadPlugin()
> > /home/bstell/work/moz/v1/mozilla/modules/plugin/default/unix/libnullplugin.so
> > returned 8183558
> > debug: edburns ns4xPlugin::CreatePlugin
> > debug: edburns ns4xPlugin::CreatePlugin: cleared callbacks
> > debug: edburns: ns4xPlugin::CreatePlugin: callbacks->newstream:
> > 0x41181c38
> > plugin getvalue 1 called
> > plugin getvalue 2 called
> > plugin getmimedescription called
> > GetMIMEDescription() returned "*:.*:All types"
> > Registering plugin for: "*","All types",".*"
> > Initialized app shell component
> > {18c2f989-b09f-11d2-bcde-00805f0e1353}, rv=0x00000000
> > Initialized app shell component
> > {33e569b0-40f8-11d4-9a41-000064657374}, rv=0x00000000
> > ProfileName : default
> > ProfileDir : /home/bstell/.mozilla/default
> > CSSLoaderImpl::LoadAgentSheet: Load of URL
> > 'file:///home/bstell/.mozilla/default/chrome/use
> > rChrome.css' failed. Error code: 16389
> > CSSLoaderImpl::LoadAgentSheet: Load of URL
> > 'file:///home/bstell/.mozilla/default/chrome/use
> > rContent.css' failed. Error code: 16389
> > WEBSHELL+ = 2
> > Enabling Quirk StyleSheet
> > Note: verifyreflow is disabled
> > Note: styleverifytree is disabled
> > Note: frameverifytree is disabled
> > WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
> > JavaScript strict warning:
> > chrome://communicator/content/bookmarks/bookmarks.js line 960:
> > redeclaration of var cmd
> >
> > WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
> > JavaScript strict warning:
> > chrome://communicator/content/bookmarks/bookmarks.js line 962:
> > redeclaration of var cmdReso
> > urce
> >
> > WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
> > JavaScript strict warning:
> > chrome://navigator/content/navigator.js line 1518: function
> > readFromClipboard does not alwa
> > ys return a value
> >
> > Start reading in bookmarks.html
> > Finished reading in bookmarks.html (735539 microseconds)
> > WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
> > JavaScript strict warning:
> > chrome://communicator/content/builtinURLs.js line 96: redeclaration
> > of var ds_uri
> >
> > WEBSHELL+ = 3
> > Enabling Quirk StyleSheet
> > Setting content window
> > *** Pulling out the charset
> > JavaScript strict warning:
> > chrome://navigator/content/navigator.js line 433: reference to
> > undefined property window.ar
> > guments[1]
> >
> > Loading page specified via openDialog
> > Opening file cookperm.txt failed
> > in SetSecurityButton
> > Error loading URL http://www.mozilla.org/: 804b001e
> > we don't handle eBorderStyle_close yet... please fix me
> > WEBSHELL+ = 4
> > WARNING: not calling OnDataAvailable, file
> > nsAsyncStreamListener.cpp, line 403
> > WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
> > JavaScript strict warning:
> > chrome://global/content/commonDialog.js line 122: redeclaration of
> > var containerID
> >
> > WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
> > JavaScript strict warning:
> > chrome://global/content/commonDialog.js line 122: redeclaration of
> > var fieldID
> >
> > WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
> > JavaScript strict warning:
> > chrome://global/content/commonDialog.js line 137: redeclaration of
> > var field
> >
> > JavaScript strict warning:
> > chrome://global/content/commonDialog.js line 30: assignment to
> > undeclared variable param
> >
> > WEBSHELL+ = 5
> > WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
> > JavaScript strict warning:
> > chrome://communicator/content/bookmarks/bm-panel.js line 122:
> > function OpenBookmarkURL does
> > not always return a value
> >
> > WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
> > JavaScript strict warning:
> > chrome://communicator/content/bookmarks/bookmarks.js line 960:
> > redeclaration of var cmd
> >
> > WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
> > JavaScript strict warning:
> > chrome://communicator/content/bookmarks/bookmarks.js line 962:
> > redeclaration of var cmdReso
> > urce
> >
> > WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
> > JavaScript strict warning:
> > chrome://communicator/content/bookmarks/bookmarksDD.js line 323:
> > redeclaration of var data
> >
> > WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
> > JavaScript strict warning:
> > chrome://communicator/content/bookmarks/bookmarksDD.js line 453:
> > redeclaration of var nodeI
> > ndex
> >
> > nsWidget::~nsWidget() of toplevel: 11 widgets still exist.
> > WEBSHELL- = 4
> > JavaScript strict warning:
> > line 9: function onget does not always return a value
> >
> > JavaScript strict warning:
> > line 9: function onset does not always return a value
>
> --
> Fernando Nasser
> Red Hat - Toronto E-Mail: fnasser@cygnus.com
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Insight freezes when trying to debug Mozilla
2000-10-03 22:28 ` bstell
@ 2000-10-03 23:49 ` Fernando Nasser
[not found] ` <39DADB70.EBD7725@ix.netcom.com>
0 siblings, 1 reply; 8+ messages in thread
From: Fernando Nasser @ 2000-10-03 23:49 UTC (permalink / raw)
To: bstell; +Cc: insight
bstell@ix.netcom.com wrote:
>
> Thank you for the reply.
>
> Fernando Nasser wrote:
> >
> > bstell@ix.netcom.com wrote:
> > >
> > > I'm trying to debug Mozilla using Insight.
> > >
> > > When I run mozilla with the debug option the insight debugger comes
> > > up and lets me start mozilla. I click the run button and it starts
> > > and then does a break at main. When I press continue mozilla comes
> > > up but insight never responds again (not screen refresh or button
> > > response.
> > >
> >
> > I don't know much about your setup (you may be better off posting to the
> > Mozzila list itself),
>
> I am confused: Why would I post to the Mozilla list about insight
> hanging?
>
This mechanism for starting-up gdb from Mozilla was created by someone in there.
We don't know anything about it. And whoever has created such connection must
have some experience in debugging Mozilla with gdb.
> > but it seems that gdb is waiting for the a Mozzila
> > thread to stop and it never does.
>
> This seems to imply that the debugger depends on the application helping
> the debugger.
>
That is not what I said. But if the application never stops no debugger will ever
regain control unless you do something to halt it. Unfortunately the STOP button
is dead because the Linux thread code fails to keep the GUI alive (a bug in that code,
at least for Insight purposes -- I will tell people on the gdb list about this).
If you know of some other point in the Mozzila code that will be certainly executed,
try inserting a breakpoint there before saying continue. See if the GUI regains control
when that breakpoint is reached.
> > Use the second gdb "up" command and see
> > what is being done at lin-lwp.c:766 I would guess it is a waitpid() call.
> > You could see what the pid is, maybe trying sending it a SIGINT...
>
> Line 766 of lin-lwp.c is calling sigsuspend().
>
This is different from what I have. But 9/30 seems newer than mine (and probably
more correct). There is probably nothing else wrong with that code besides the
fact that it is not keeping the GUI alive while the program being debugged is
running. I did not notice the first time around that you just pressed CONTINUE
without any breakpoint inserted (so there is no reason for the inferior to stop
and for the debugger to regain control).
--
Fernando Nasser
Red Hat Canada Ltd. E-Mail: fnasser@cygnus.com
2323 Yonge Street, Suite #300 Tel: 416-482-2661 ext. 311
Toronto, Ontario M4P 2C9 Fax: 416-482-6299
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2000-10-04 11:01 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2000-10-01 9:49 Insight freezes when trying to debug Mozilla bstell
2000-10-03 13:36 ` Fernando Nasser
2000-10-03 22:28 ` bstell
2000-10-03 23:49 ` Fernando Nasser
[not found] ` <39DADB70.EBD7725@ix.netcom.com>
2000-10-04 0:33 ` Fernando Nasser
2000-10-04 10:51 ` bstell
2000-10-04 10:56 ` Fernando Nasser
2000-10-04 11:01 ` Syd Polk
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