[Bug 1758970] [NEW] dot segfault in libgvc.so.6.0.0

2018-03-26 Thread Erich Schubert
Public bug reported:

Dotty segfaults on many UMLgraph generated maps for me.

Here is a trimmed down example:
---
digraph "G" {
c1 [ label = < Test > ]
c2 [ label = < Test > ]
c3 [ label = < Test > ]
c1:p -> c2:p [ ]
c1:p -> c3:p [ ]
c1:p -> c3:p [ ]
c2:p -> c3:p [ ]
}
---
Remove any of the edges and the graph works.

Backtrace of "dot":
---
(gdb) bt
#0  0x77b90c4b in resolvePort () from /usr/lib/libgvc.so.6
#1  0x77b81b56 in endpath () from /usr/lib/libgvc.so.6
#2  0x7239838a in ?? () from 
/usr/lib/graphviz/libgvplugin_dot_layout.so.6
#3  0x7238a4ed in ?? () from 
/usr/lib/graphviz/libgvplugin_dot_layout.so.6
#4  0x7238ab58 in dot_layout () from 
/usr/lib/graphviz/libgvplugin_dot_layout.so.6
#5  0x77b5ae92 in gvLayoutJobs () from /usr/lib/libgvc.so.6
#6  0x50b0 in ?? ()
#7  0x775671c1 in __libc_start_main (main=0x4e10, argc=2, 
argv=0x7fffe6c8, init=, fini=, 
rtld_fini=, stack_end=0x7fffe6b8) at ../csu/libc-start.c:308
#8  0x514a in ?? ()
---

Using artful, and I already tried updating to bionic. It did not help.

There are number of bugs reported that sound similar. I hope this small
test case if helpful.

** Affects: graphviz (Ubuntu)
 Importance: Undecided
 Status: New

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  dot segfault in libgvc.so.6.0.0

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[Bug 1441487] Re: Running any Java program produces messages in the terminal, while rendering many Java applications broken

2015-10-05 Thread Erich Schubert
Note that the bug description, and the changelog entry are MISLEADING.

jayatana BREAKS unrelated applications.

It's not just an irritating error message that is not supported by some
shell scripts, but jayatana is causing NullPointerExceptions all over
the place in unrelated programs, and even causing SIGSEGV as you can see
above!

It is NOT just the hotspot output that is causing problems. jayatana is
a really really BROKEN approach, and in my opinion is is so badly broken
that it cannot even be fixed properly (because of threading issues - to
get this kind of menus, you need to have dbus integrated; which means
you need another thread that must be properly synchronized with Java -
including whatever other hacks Java programs such as NetBeans, Eclipse
etc. may do... - unless you write a non-JNI dbus API for Java this is
bound to cause trouble, big time. Launching threads from JNI is pretty
much never a good idea, even less when the Java application doesn't even
know about this thread...)

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  rendering many Java applications broken

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[Bug 1441487] Re: Running any Java program produces messages in the terminal, while rendering many Java applications broken

2015-09-30 Thread Erich Schubert
Whitelisting will be hard, since some of the problems are probably due
to threading problems between the OpenJDK, and the GTK thread used by
jayatana. So even if an application works fine on one JDK, it may be
broken on the next JDK. The whitelist would then need to check both, and
will need to be updated a lot.

Installing jayatana for the user to use "at own risk" is of course okay.

I still do think the way jayatana is injected into the JVM is bound to
repeatedly cause such trouble. A more reliable fix would probably be to
patch the JDK itself. It then would of course not apply to Oracle JDKs
(unless merged back by them), and require updates with new JDK versions.
The place to do this would probably be
"jdk/src/solaris/native/sun/awt/{swing_GTK*,gtk*}.c" and
"com/sun/java/swing/plaf/gtk/*.java"; or by implementing this as an
alternate "Unity" look-and-feel altogether.

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[Bug 1453214] Re: Uninstalling the jayatana package breaks Java invocations in Ubuntu 15.04 until restart

2015-09-29 Thread Erich Schubert
This is because of the incredibly hackish way this package was designed:
it is loaded using that JAVA_TOOL_OPTIONS environment variable hack.

I doubt it can easily be fixed except by logging out, and logging in
again. You should be able to run java applications from a shell though,
by doing a "export JAVA_TOO_OPTIONS="

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  15.04 until restart

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[Bug 1453094] Re: Arduino crash with unity integration (jayatanaag)

2015-09-29 Thread Erich Schubert
*** This bug is a duplicate of bug 1441487 ***
https://bugs.launchpad.net/bugs/1441487

** This bug has been marked a duplicate of bug 1441487
   Running any Java program produces messages in the terminal, while rendering 
many Java applications broken

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Title:
  Arduino crash with unity integration (jayatanaag)

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[Bug 1451818] Re: jayatana causing Moneydance 2015 crash in ubuntu 15.04

2015-09-29 Thread Erich Schubert
*** This bug is a duplicate of bug 1441487 ***
https://bugs.launchpad.net/bugs/1441487

** This bug has been marked a duplicate of bug 1441487
   Running any Java program produces messages in the terminal, while rendering 
many Java applications broken

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  jayatana causing Moneydance 2015 crash in ubuntu 15.04

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[Bug 1497592] Re: Jayatana causes java.awt.IllegalComponentStateException in NetBeans

2015-09-29 Thread Erich Schubert
*** This bug is a duplicate of bug 1441487 ***
https://bugs.launchpad.net/bugs/1441487

** This bug has been marked a duplicate of bug 1441487
   Running any Java program produces messages in the terminal, while rendering 
many Java applications broken

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Title:
  Jayatana causes java.awt.IllegalComponentStateException in NetBeans

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[Bug 1441487] Re: Running any Java program produces messages in the terminal, while rendering many Java applications broken

2015-09-29 Thread Erich Schubert
More errors caused by jayatana:

Matlab: http://askubuntu.com/questions/615644/after-upgrading-
ubuntu-14-10-to-15-04-i-am-no-longer-able-to-open-matlab-2013a

Android Studio:
https://code.google.com/p/android/issues/detail?id=187179

Altassin IntelliJ:
https://ecosystem.atlassian.net/browse/PL-3079?page=com.atlassian.jira.plugin.system.issuetabpanels
:all-tabpanel

Netbeans: https://netbeans.org/bugzilla/show_bug.cgi?id=255249

Topcoder arena (whatever): http://askubuntu.com/questions/509566/unable-
to-start-topcoder-arena-in-ubuntu-14-04

NixOS: https://github.com/NixOS/nixpkgs/issues/7082

seesaw: http://stackoverflow.com/questions/31632675/geting-error-using-
seesaw-on-the-lein-repl

Yes, this bug breaks apparenly ANY Java application using Swing?


** Bug watch added: code.google.com/p/android/issues #187179
   http://code.google.com/p/android/issues/detail?id=187179

** Bug watch added: netbeans.org/bugzilla/ #255249
   http://netbeans.org/bugzilla/show_bug.cgi?id=255249

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[Bug 1441487] Re: Running any Java program produces messages in the terminal, while rendering many Java applications broken

2015-09-29 Thread Erich Schubert
This REALLY breaks random things.

Please replace this package with an empty package to immediately unbreak
things.

See also:
http://stackoverflow.com/questions/26074446/picked-up-java-tool-options-javaagent-usr-share-java-jayatanaag-jar-when-st
http://elki.dbs.ifi.lmu.de/ticket/133
http://elki.dbs.ifi.lmu.de/ticket/131
http://elki.dbs.ifi.lmu.de/ticket/130
https://github.com/NixOS/nixpkgs/issues/7082

and probably a thousand other hits on Google by now.

In my opinion, jayatana is broken by design, appears to be unmaintained,
and thus should be abandoned ASAP.

** Bug watch added: elki.dbs.ifi.lmu.de/ #133
   http://elki.dbs.ifi.lmu.de/ticket/133

** Bug watch added: elki.dbs.ifi.lmu.de/ #131
   http://elki.dbs.ifi.lmu.de/ticket/131

** Bug watch added: elki.dbs.ifi.lmu.de/ #130
   http://elki.dbs.ifi.lmu.de/ticket/130

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[Bug 1126035] Re: Scala 2.10.0 needs packaging

2015-04-13 Thread Erich Schubert
No, actually this is highly embarrassing for Scala.

Nobody seems to be able to build nice and clean scala packages.

Their build process is a mess, and the packages they provide are an ugly
hack. They include native code (in jline), they include unnecessary
dependencies (akka-actor), etc.

Scala needs a nice and clean build process. But it's too hip to care
about Linux packaging best practises.

Everybody trying to build clean packages of scala (and sbt; as sbt seems
to be the only way to build scala currently - and unfortunately, you
need sbt to build sbt?!?) seems to give up quickly. This is
embarrassing, the scala toolchain cannot bootstrap itself without having
scala installed already?

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Title:
  Scala 2.10.0 needs packaging

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[Bug 1268151] Re: [Dell M4800] DPMS support broken, fails to wake up the monitor after putting it to sleep

2014-12-15 Thread Erich Schubert
It appears that sometimes, nvidia is losing the *display* information.

(II) NVIDIA(0): Setting mode "NULL"

I can recover my display by running

xrandr --auto

Note: this may not work when you are logged into the console - you may
want to use something like "sleep 3; xrandr --auto" and then switch via
Ctrl+Alt+F7 within three seconds. I usually login from a remote machine.

It happens about once a month for me. :-(

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  [Dell M4800] DPMS support broken, fails to wake up the monitor after
  putting it to sleep

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[Bug 250211] Re: Intrepid: WLAN LED blinks incessantly on iwl3945 | iwl4965 laptop

2008-11-08 Thread Erich Schubert
Being the author of the much quoted
http://blog.drinsama.de/erich/en/linux/2008052101-iwlwifi-blinking.html
and since I just also received an email about this issue, here are some 
comments.

First of all, **give changes 5 seconds to take effect**. When blinking
was triggered, it will continue to blink for some seconds, even after
you disable the trigger.

Secondly, there is a good reason why I did not echo to radio and assoc.
If you re-read the end of that post:

"It will still blink when connecting (leds:iwl-phy*:assoc) and indicate
if the connection is available (leds:iwl-phy*:radio)."

Blinking while trying to connect to a wireless network is good
("association state"). I'd like to have the LED flashing when the
network connection is currently not working right.

P.S. I believe the driver authors have removed the flash-on-every-packet
behaviour of the LED to reduce load. Because that is what it used to do:
turn the LED off and on for every single packet.

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[Bug 32963] Re: Xv movies on 810/i945 gives horrible color, Gamma

2007-03-01 Thread Erich Schubert
Lionel:
Did you try poweroff, or just a "warm" reboot?
Maybe the gamma settings aren't reinitalized on a warm reboot. I'd doubt that 
totem-xine would be able to break your system permanently.

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[Bug 56894] Re: WLAN disconnects repeatedly from AP when using WPA on a SMP machine

2007-02-23 Thread Erich Schubert
I'm seeing this problem on Debian, Kernel 2.6.18, Core Duo, ipw3945 (Dell 640m).
The tuxyturvy link seems to have many details.

In the 2.6.20 changelog there are some changesets that seem to be
relevant.

commit 4d1feabcbf41f875447a392015acd0796f57baf6
Author: Ulrich Kunitz <[EMAIL PROTECTED]>
Date:   Sun Dec 10 11:13:12 2006 -0800

[PATCH] zd1211rw: Call ieee80211_rx in tasklet

The driver called ieee80211_rx in hardware interrupt context.  This has
been against the intention of the ieee80211_rx function.  It caused a bug
in the crypto routines used by WPA.  This patch calls ieee80211_rx in a
tasklet.

Signed-off-by: Ulrich Kunitz <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: John W. Linville <[EMAIL PROTECTED]>

That changeset could maybe be fixing this. I havn't investigated it
further. I'll compile 2.6.20 myself and see if that fixes the wireless
stability again.

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