synergyc crashed with SIGSEGV in std::_Rb_tree_increment()

StacktraceTop:
 std::_Rb_tree_increment (__x=0x8b0a75c0) at ../../../../src/libstdc++-v3/src/tree.cc:65
 operator++ (this=<synthetic pointer>) at /usr/include/c++/4.6/bits/stl_tree.h:188
 operator= (__value=..., this=<synthetic pointer>) at /usr/include/c++/4.6/bits/stl_iterator.h:627
 __copy_m<std::_Rb_tree_iterator<std::pair<unsigned short const, CKeyMap::KeyItem const*> >, std::insert_iterator<std::map<unsigned short, CKeyMap::KeyItem const*> > > (__result=..., __last=<optimized out>, __first=<optimized out>) at /usr/include/c++/4.6/bits/stl_algobase.h:299
 __copy_move_a<false, std::_Rb_tree_iterator<std::pair<unsigned short const, CKeyMap::KeyItem const*> >, std::insert_iterator<std::map<unsigned short, CKeyMap::KeyItem const*> > > (__result=..., __last=..., __first=<optimized out>) at /usr/include/c++/4.6/bits/stl_algobase.h:384

Status changed to 'Confirmed' because the bug affects multiple users.

I installed 1.4.6 beta (both windows server and deb client) from the synergy website and the problem disappeared.

Thanks! Will try this right now, as I have not tried any other beta
version outside of 1.4.7. Will let you know how it turns out.

On Fri, Mar 23, 2012 at 10:38 AM, Dev <email address hidden> wrote:

> I installed 1.4.6 beta (both windows server and deb client) from the
> synergy website and the problem disappeared.
>
> --
> You received this bug notification because you are subscribed to a
> duplicate bug report (948787).
> https://bugs.launchpad.net/bugs/926198
>
> Title:
> synergyc crashed with SIGSEGV in std::_Rb_tree_increment()
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/synergy/+bug/926198/+subscriptions
>

Thanks again, Scotty! Synergy server on Windows 7 updated to 1.4.6b.
Would like to report that on the client side, synergy 1.4.6b on Ubuntu
12.04 works. Dual booting to Windows XP on the client, Synergy 1.3.8 still
works.

On Fri, Mar 23, 2012 at 4:27 PM, Carlo Castillo <email address hidden>wrote:

> Thanks! Will try this right now, as I have not tried any other beta
> version outside of 1.4.7. Will let you know how it turns out.
>
>
> On Fri, Mar 23, 2012 at 10:38 AM, Dev <email address hidden> wrote:
>
>> I installed 1.4.6 beta (both windows server and deb client) from the
>> synergy website and the problem disappeared.
>>
>> --
>> You received this bug notification because you are subscribed to a
>> duplicate bug report (948787).
>> https://bugs.launchpad.net/bugs/926198
>>
>> Title:
>> synergyc crashed with SIGSEGV in std::_Rb_tree_increment()
>>
>> To manage notifications about this bug go to:
>>
>> https://bugs.launchpad.net/ubuntu/+source/synergy/+bug/926198/+subscriptions
>>
>
>

Happens here too when I press Shift on the shared keyboard. The client crashes.

The synergy's connection closes just when a use a special key like SHIFT for capitalize a letter, CTRL to get a shortcut, ALT etc.

It is not a crash application but only the connection that is interrupted. If I open the synergy window, click stop and start again it works again.

That last comment sounds wrong. Synergy definitely segfaults (crashes), the part that's not crashing for you is quicksynergy which is a UI spawning synergy in the backend. What you describe in your comment (having to stop/start) is consistent with synergy crashing.

any keyboard modifier key combination seems to cause this problem. it's good otherwise - mouse, clipboard work well. my server is running Oneiric - clients are Precise (12.04)

I resolve the problem with last version 1.4.8 (beta release) on server and client.
My server is Win7 and client is Precise.

Agreed - all these problems are fixed on the beta available from the synergy website.

I haven't been brave enough to switch to the beta, however downloading the 1.3.8 stable .deb from the Synergy website has resulted in stable connectivity for me. Using 1.3.8 with Windows as the server via SSH tunnels.

Had to "apt-mark hold synergy" though for the time being.

The issue would appear to be with the Ubuntu provided package.

Have noticed some issues with "stuck shift" keys occasionally when I move between systems, but that could actually be my keyboard.

Question for the beta users: Did you have install issues with it on Ubuntu? Doesn't seem to want to install through Ubuntu Software ...

Confirmed, tried installing the beta releases via the Ubuntu Software Center. Gives a bad package warning due to $ENV{"HOME"}.
This may be a dpkg issue though.

For those tring to install 1.4.8. and getting failures via Software Center

Add the GetDeb Apps PPM:

wget -q -O - http://archive.getdeb.net/getdeb-archive.key | sudo apt-key add -
sudo sh -c 'echo "deb http://archive.getdeb.net/ubuntu precise-getdeb apps" >> /etc/apt/sources.list.d/getdeb.list'
sudo apt-get update

Then use Synaptic to install.

installed version 1.4.8 through GetDeb on server (11.10) and client (12.04) and now it works like a charm.

The deb install errors issue should be filed as a separate bug if it is not already. The getdeb method is a workaround, not a long term solution. Can the changes to the deb be ported back into the upstream package?

Note that the suggested workaround to upgrade synergy from 1.3 to 1.4 will break compatibility with existing 1.3 servers:

$ synergyc -f localhost
INFO: Synergy 1.4.8 Client on Linux 3.2.0-24-generic #37-Ubuntu SMP Wed Apr 25 08:43:52 UTC 2012 i686
NOTE: started client
NOTE: connecting to 'localhost': 127.0.0.1:24800
WARNING: failed to connect to server: incompatible client 1.3

As Eric Stewart (kmgc) I have successfully installed the upstream synergy-1.3.8 as shown below and it provides a workaround for the synergyc crash issues:

wget http://synergy.googlecode.com/files/synergy-1.3.8-Linux-i686.deb
sudo dpkg --install synergy-1.3.8-Linux-i686.deb
sudo apt-mark hold synergy